./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 302c18c494f9017ecbb07643194b1d54ba0a6bba467355d4f775638dea57e539 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:11:52,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:11:52,855 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 22:11:52,862 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:11:52,862 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:11:52,893 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:11:52,894 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:11:52,894 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:11:52,896 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:11:52,896 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:11:52,897 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:11:52,898 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:11:52,898 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:11:52,899 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:11:52,899 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:11:52,900 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:11:52,900 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:11:52,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:11:52,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:11:52,902 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:11:52,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:11:52,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:11:52,907 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:11:52,907 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:11:52,908 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:11:52,908 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:11:52,909 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:11:52,909 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:11:52,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:11:52,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:11:52,910 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:11:52,911 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:11:52,912 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:11:52,912 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_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 302c18c494f9017ecbb07643194b1d54ba0a6bba467355d4f775638dea57e539 [2023-11-06 22:11:53,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:11:53,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:11:53,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:11:53,227 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:11:53,228 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:11:53,229 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c [2023-11-06 22:11:56,305 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:11:56,577 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:11:56,578 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c [2023-11-06 22:11:56,589 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/data/82338f6cf/e6c54436a20345f4a2a98bd0df3d3f5d/FLAG6a13ce7f2 [2023-11-06 22:11:56,607 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/data/82338f6cf/e6c54436a20345f4a2a98bd0df3d3f5d [2023-11-06 22:11:56,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:11:56,611 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:11:56,612 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:11:56,612 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:11:56,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:11:56,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:11:56" (1/1) ... [2023-11-06 22:11:56,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710899ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:56, skipping insertion in model container [2023-11-06 22:11:56,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:11:56" (1/1) ... [2023-11-06 22:11:56,649 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:11:56,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:11:56,790 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:11:56,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:11:56,824 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:11:56,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:56 WrapperNode [2023-11-06 22:11:56,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:11:56,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:11:56,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:11:56,827 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:11:56,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:56" (1/1) ... [2023-11-06 22:11:56,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:56" (1/1) ... [2023-11-06 22:11:56,858 INFO L138 Inliner]: procedures = 8, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2023-11-06 22:11:56,859 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:11:56,860 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:11:56,860 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:11:56,860 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:11:56,869 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:56" (1/1) ... [2023-11-06 22:11:56,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:56" (1/1) ... [2023-11-06 22:11:56,871 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:56" (1/1) ... [2023-11-06 22:11:56,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:56" (1/1) ... [2023-11-06 22:11:56,876 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:56" (1/1) ... [2023-11-06 22:11:56,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:56" (1/1) ... [2023-11-06 22:11:56,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:56" (1/1) ... [2023-11-06 22:11:56,881 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:56" (1/1) ... [2023-11-06 22:11:56,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:11:56,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:11:56,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:11:56,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:11:56,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:56" (1/1) ... [2023-11-06 22:11:56,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:11:56,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:56,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:11:56,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:11:56,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:11:56,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:11:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:11:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:11:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:11:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:11:57,020 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:11:57,023 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:11:57,161 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:11:57,167 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:11:57,168 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:11:57,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:11:57 BoogieIcfgContainer [2023-11-06 22:11:57,170 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:11:57,171 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:11:57,172 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:11:57,176 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:11:57,177 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:11:57,178 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:11:56" (1/3) ... [2023-11-06 22:11:57,179 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b726b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:11:57, skipping insertion in model container [2023-11-06 22:11:57,179 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:11:57,180 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:56" (2/3) ... [2023-11-06 22:11:57,180 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b726b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:11:57, skipping insertion in model container [2023-11-06 22:11:57,180 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:11:57,181 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:11:57" (3/3) ... [2023-11-06 22:11:57,182 INFO L332 chiAutomizerObserver]: Analyzing ICFG Arrays03-ValueRestictsIndex-2.c [2023-11-06 22:11:57,242 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:11:57,242 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:11:57,242 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:11:57,243 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:11:57,243 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:11:57,243 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:11:57,243 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:11:57,243 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:11:57,248 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 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) [2023-11-06 22:11:57,268 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2023-11-06 22:11:57,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:11:57,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:11:57,274 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:11:57,274 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:11:57,274 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:11:57,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 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) [2023-11-06 22:11:57,276 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2023-11-06 22:11:57,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:11:57,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:11:57,277 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:11:57,277 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:11:57,286 INFO L748 eck$LassoCheckResult]: Stem: 11#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 3#L15-3true [2023-11-06 22:11:57,286 INFO L750 eck$LassoCheckResult]: Loop: 3#L15-3true assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 7#L15-2true main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 3#L15-3true [2023-11-06 22:11:57,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:57,293 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 22:11:57,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:57,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44942275] [2023-11-06 22:11:57,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:57,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:11:57,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:11:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:11:57,428 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:11:57,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:57,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2023-11-06 22:11:57,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:57,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714170359] [2023-11-06 22:11:57,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:57,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:11:57,445 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:11:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:11:57,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:11:57,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:57,456 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2023-11-06 22:11:57,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:57,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698072147] [2023-11-06 22:11:57,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:57,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:11:57,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:11:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:11:57,498 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:11:57,841 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:11:57,842 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:11:57,842 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:11:57,842 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:11:57,842 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:11:57,842 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:11:57,842 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:11:57,843 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:11:57,843 INFO L133 ssoRankerPreferences]: Filename of dumped script: Arrays03-ValueRestictsIndex-2.c_Iteration1_Lasso [2023-11-06 22:11:57,843 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:11:57,843 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:11:57,863 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:11:57,873 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:11:57,877 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:11:57,880 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:11:57,883 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:11:58,007 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:11:58,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:11:58,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:11:58,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:11:58,024 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:11:58,029 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:11:58,204 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:11:58,209 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:11:58,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:11:58,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:58,219 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:11:58,225 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 [2023-11-06 22:11:58,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 22:11:58,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:11:58,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:11:58,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:11:58,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:11:58,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:11:58,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:11:58,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:11:58,253 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:11:58,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:11:58,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:11:58,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:58,265 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:11:58,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:11:58,272 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 [2023-11-06 22:11:58,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:11:58,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:11:58,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:11:58,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:11:58,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:11:58,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:11:58,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:11:58,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:11:58,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:11:58,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:11:58,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:58,316 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:11:58,321 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 [2023-11-06 22:11:58,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:11:58,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:11:58,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:11:58,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:11:58,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:11:58,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:11:58,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:11:58,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:11:58,340 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:11:58,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:11:58,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:11:58,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:58,350 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:11:58,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:11:58,353 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 [2023-11-06 22:11:58,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:11:58,364 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:11:58,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:11:58,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:11:58,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:11:58,365 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:11:58,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:11:58,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:11:58,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:11:58,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:11:58,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:58,375 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:11:58,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:11:58,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:11:58,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:11:58,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:11:58,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:11:58,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:11:58,394 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:11:58,394 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:11:58,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:11:58,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:11:58,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:11:58,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:58,422 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:11:58,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:11:58,425 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 [2023-11-06 22:11:58,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:11:58,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:11:58,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:11:58,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:11:58,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:11:58,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:11:58,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:11:58,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-06 22:11:58,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:11:58,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:58,478 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:11:58,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:11:58,485 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 [2023-11-06 22:11:58,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:11:58,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:11:58,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:11:58,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:11:58,504 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:11:58,505 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:11:58,521 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:11:58,567 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2023-11-06 22:11:58,567 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 10 variables to zero. [2023-11-06 22:11:58,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:11:58,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:58,591 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:11:58,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:11:58,593 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:11:58,619 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-06 22:11:58,620 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:11:58,620 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1, ULTIMATE.start_main_~i~0#1) = 2095*v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1 - 8*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-06 22:11:58,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:11:58,632 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-11-06 22:11:58,641 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[~#a~0!base] could not be translated [2023-11-06 22:11:58,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:58,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:11:58,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:11:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:58,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:11:58,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:11:58,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:58,803 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:11:58,805 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-06 22:11:58,871 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 41 transitions. Complement of second has 8 states. [2023-11-06 22:11:58,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:11:58,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-06 22:11:58,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2023-11-06 22:11:58,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-06 22:11:58,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:11:58,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-06 22:11:58,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:11:58,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-06 22:11:58,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:11:58,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 41 transitions. [2023-11-06 22:11:58,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:11:58,894 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 10 states and 13 transitions. [2023-11-06 22:11:58,895 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-06 22:11:58,895 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-06 22:11:58,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2023-11-06 22:11:58,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:11:58,898 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-06 22:11:58,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2023-11-06 22:11:58,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-06 22:11:58,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:58,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-11-06 22:11:58,926 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-06 22:11:58,926 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-06 22:11:58,926 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:11:58,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2023-11-06 22:11:58,929 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:11:58,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:11:58,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:11:58,929 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:11:58,930 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 22:11:58,930 INFO L748 eck$LassoCheckResult]: Stem: 91#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 92#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 86#L15-3 assume !(main_~i~0#1 < 1048); 84#L15-4 havoc main_~i~0#1; 85#L19 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 93#L20 assume !main_#t~short5#1; 89#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 90#L22-2 [2023-11-06 22:11:58,930 INFO L750 eck$LassoCheckResult]: Loop: 90#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 90#L22-2 [2023-11-06 22:11:58,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:58,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1807952492, now seen corresponding path program 1 times [2023-11-06 22:11:58,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:58,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446340199] [2023-11-06 22:11:58,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:58,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:59,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-06 22:11:59,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:59,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:11:59,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446340199] [2023-11-06 22:11:59,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446340199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:11:59,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:11:59,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:11:59,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070196597] [2023-11-06 22:11:59,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:11:59,090 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:11:59,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:59,092 INFO L85 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2023-11-06 22:11:59,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:59,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364546091] [2023-11-06 22:11:59,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:59,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:11:59,101 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:11:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:11:59,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:11:59,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:11:59,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:11:59,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:11:59,133 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:59,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:11:59,150 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2023-11-06 22:11:59,150 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2023-11-06 22:11:59,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:11:59,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 13 transitions. [2023-11-06 22:11:59,154 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-06 22:11:59,158 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-06 22:11:59,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2023-11-06 22:11:59,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:11:59,159 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2023-11-06 22:11:59,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2023-11-06 22:11:59,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-11-06 22:11:59,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:59,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2023-11-06 22:11:59,162 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-11-06 22:11:59,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:11:59,170 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-11-06 22:11:59,171 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:11:59,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2023-11-06 22:11:59,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:11:59,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:11:59,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:11:59,174 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:11:59,174 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 22:11:59,174 INFO L748 eck$LassoCheckResult]: Stem: 118#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 119#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 113#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 114#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 115#L15-3 assume !(main_~i~0#1 < 1048); 111#L15-4 havoc main_~i~0#1; 112#L19 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 120#L20 assume !main_#t~short5#1; 116#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 117#L22-2 [2023-11-06 22:11:59,174 INFO L750 eck$LassoCheckResult]: Loop: 117#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 117#L22-2 [2023-11-06 22:11:59,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:59,175 INFO L85 PathProgramCache]: Analyzing trace with hash -369324246, now seen corresponding path program 1 times [2023-11-06 22:11:59,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:59,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721237316] [2023-11-06 22:11:59,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:59,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:59,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:59,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:11:59,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721237316] [2023-11-06 22:11:59,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721237316] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:11:59,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235714234] [2023-11-06 22:11:59,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:59,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:11:59,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:59,261 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:11:59,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:11:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:59,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:11:59,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:11:59,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:11:59,325 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:11:59,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235714234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:11:59,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:11:59,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-06 22:11:59,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000710560] [2023-11-06 22:11:59,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:11:59,328 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:11:59,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:59,328 INFO L85 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 2 times [2023-11-06 22:11:59,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:59,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754609702] [2023-11-06 22:11:59,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:59,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:11:59,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:11:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:11:59,345 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:11:59,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:11:59,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:11:59,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:11:59,364 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:59,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:11:59,373 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2023-11-06 22:11:59,373 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2023-11-06 22:11:59,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:11:59,374 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 11 transitions. [2023-11-06 22:11:59,374 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-06 22:11:59,375 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-06 22:11:59,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 11 transitions. [2023-11-06 22:11:59,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:11:59,375 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 11 transitions. [2023-11-06 22:11:59,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 11 transitions. [2023-11-06 22:11:59,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-06 22:11:59,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 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) [2023-11-06 22:11:59,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2023-11-06 22:11:59,377 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 11 transitions. [2023-11-06 22:11:59,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:11:59,379 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2023-11-06 22:11:59,379 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:11:59,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 11 transitions. [2023-11-06 22:11:59,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:11:59,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:11:59,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:11:59,380 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:11:59,380 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 22:11:59,381 INFO L748 eck$LassoCheckResult]: Stem: 171#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 172#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 168#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 169#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 170#L15-3 assume !(main_~i~0#1 < 1048); 164#L15-4 havoc main_~i~0#1; 165#L19 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 173#L20 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short5#1 := 42 == main_#t~mem4#1; 166#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 167#L22-2 [2023-11-06 22:11:59,381 INFO L750 eck$LassoCheckResult]: Loop: 167#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 167#L22-2 [2023-11-06 22:11:59,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:59,382 INFO L85 PathProgramCache]: Analyzing trace with hash -369324308, now seen corresponding path program 1 times [2023-11-06 22:11:59,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:59,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116619079] [2023-11-06 22:11:59,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:59,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:59,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:59,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:11:59,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116619079] [2023-11-06 22:11:59,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116619079] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:11:59,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325817448] [2023-11-06 22:11:59,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:59,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:11:59,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:59,439 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:11:59,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:11:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:59,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:11:59,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:11:59,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:59,509 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:11:59,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:59,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325817448] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:11:59,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:11:59,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-06 22:11:59,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637909868] [2023-11-06 22:11:59,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:11:59,532 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:11:59,533 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:59,533 INFO L85 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 3 times [2023-11-06 22:11:59,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:59,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483499627] [2023-11-06 22:11:59,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:59,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:11:59,537 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:11:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:11:59,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:11:59,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:11:59,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:11:59,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:11:59,556 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:59,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:11:59,587 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2023-11-06 22:11:59,587 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 17 transitions. [2023-11-06 22:11:59,588 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:11:59,589 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 17 transitions. [2023-11-06 22:11:59,589 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-06 22:11:59,589 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-06 22:11:59,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 17 transitions. [2023-11-06 22:11:59,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:11:59,590 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-06 22:11:59,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 17 transitions. [2023-11-06 22:11:59,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-06 22:11:59,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.0625) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:59,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2023-11-06 22:11:59,592 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-06 22:11:59,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:11:59,593 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-06 22:11:59,594 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 22:11:59,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 17 transitions. [2023-11-06 22:11:59,594 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:11:59,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:11:59,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:11:59,595 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:11:59,595 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 22:11:59,596 INFO L748 eck$LassoCheckResult]: Stem: 256#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 257#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 250#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 251#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 252#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 253#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 263#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 262#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 261#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 260#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 259#L15-3 assume !(main_~i~0#1 < 1048); 248#L15-4 havoc main_~i~0#1; 249#L19 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 258#L20 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short5#1 := 42 == main_#t~mem4#1; 254#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 255#L22-2 [2023-11-06 22:11:59,596 INFO L750 eck$LassoCheckResult]: Loop: 255#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 255#L22-2 [2023-11-06 22:11:59,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:59,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1716187174, now seen corresponding path program 2 times [2023-11-06 22:11:59,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:59,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711742095] [2023-11-06 22:11:59,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:59,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:59,711 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:59,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:11:59,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711742095] [2023-11-06 22:11:59,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711742095] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:11:59,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044597172] [2023-11-06 22:11:59,713 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:11:59,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:11:59,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:59,720 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:11:59,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:11:59,798 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:11:59,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:11:59,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:11:59,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:11:59,842 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:59,842 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:11:59,925 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:59,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044597172] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:11:59,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:11:59,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-06 22:11:59,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299337482] [2023-11-06 22:11:59,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:11:59,927 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:11:59,927 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:59,927 INFO L85 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 4 times [2023-11-06 22:11:59,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:59,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544653253] [2023-11-06 22:11:59,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:59,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:11:59,937 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:11:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:11:59,947 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:11:59,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:11:59,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:11:59,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:11:59,966 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. cyclomatic complexity: 3 Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:00,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:00,028 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2023-11-06 22:12:00,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 29 transitions. [2023-11-06 22:12:00,032 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:12:00,034 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 29 transitions. [2023-11-06 22:12:00,034 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-06 22:12:00,034 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-06 22:12:00,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 29 transitions. [2023-11-06 22:12:00,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:00,035 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-11-06 22:12:00,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 29 transitions. [2023-11-06 22:12:00,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-06 22:12:00,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 27 states have internal predecessors, (29), 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) [2023-11-06 22:12:00,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2023-11-06 22:12:00,041 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-11-06 22:12:00,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:12:00,044 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-11-06 22:12:00,044 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-06 22:12:00,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 29 transitions. [2023-11-06 22:12:00,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:12:00,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:12:00,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:12:00,049 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:00,049 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 22:12:00,049 INFO L748 eck$LassoCheckResult]: Stem: 400#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 401#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 394#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 395#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 396#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 397#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 403#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 419#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 418#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 417#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 416#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 415#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 414#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 413#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 412#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 411#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 410#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 409#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 408#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 407#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 406#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 405#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 404#L15-3 assume !(main_~i~0#1 < 1048); 392#L15-4 havoc main_~i~0#1; 393#L19 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 402#L20 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short5#1 := 42 == main_#t~mem4#1; 398#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 399#L22-2 [2023-11-06 22:12:00,049 INFO L750 eck$LassoCheckResult]: Loop: 399#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 399#L22-2 [2023-11-06 22:12:00,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:00,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1328175130, now seen corresponding path program 3 times [2023-11-06 22:12:00,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:00,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102153749] [2023-11-06 22:12:00,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:00,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:00,469 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:00,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:00,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102153749] [2023-11-06 22:12:00,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102153749] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:00,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117702334] [2023-11-06 22:12:00,470 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:12:00,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:00,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:00,476 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:00,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 22:12:00,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-06 22:12:00,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:12:00,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:12:00,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:12:00,723 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:00,723 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:12:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:00,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117702334] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:12:00,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:12:00,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2023-11-06 22:12:00,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891421681] [2023-11-06 22:12:00,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:12:00,966 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:12:00,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:00,966 INFO L85 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 5 times [2023-11-06 22:12:00,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:00,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882366698] [2023-11-06 22:12:00,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:00,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:12:00,971 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:12:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:12:00,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:12:00,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:00,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-06 22:12:00,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-06 22:12:00,994 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. cyclomatic complexity: 3 Second operand has 25 states, 25 states have (on average 2.08) internal successors, (52), 25 states have internal predecessors, (52), 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) [2023-11-06 22:12:01,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:01,108 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2023-11-06 22:12:01,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 53 transitions. [2023-11-06 22:12:01,112 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:12:01,113 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 52 states and 53 transitions. [2023-11-06 22:12:01,113 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-06 22:12:01,113 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-06 22:12:01,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 53 transitions. [2023-11-06 22:12:01,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:01,114 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 53 transitions. [2023-11-06 22:12:01,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 53 transitions. [2023-11-06 22:12:01,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-06 22:12:01,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.0192307692307692) internal successors, (53), 51 states have internal predecessors, (53), 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) [2023-11-06 22:12:01,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2023-11-06 22:12:01,121 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 53 transitions. [2023-11-06 22:12:01,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-06 22:12:01,124 INFO L428 stractBuchiCegarLoop]: Abstraction has 52 states and 53 transitions. [2023-11-06 22:12:01,124 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-06 22:12:01,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 53 transitions. [2023-11-06 22:12:01,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:12:01,132 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:12:01,132 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:12:01,136 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [22, 22, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:01,136 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 22:12:01,137 INFO L748 eck$LassoCheckResult]: Stem: 664#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 665#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 658#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 659#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 660#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 661#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 667#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 707#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 706#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 705#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 704#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 703#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 702#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 701#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 700#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 699#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 698#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 697#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 696#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 695#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 694#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 693#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 692#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 691#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 690#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 689#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 688#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 687#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 686#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 685#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 684#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 683#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 682#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 681#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 680#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 679#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 678#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 677#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 676#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 675#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 674#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 673#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 672#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 671#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 670#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 669#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 668#L15-3 assume !(main_~i~0#1 < 1048); 656#L15-4 havoc main_~i~0#1; 657#L19 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 666#L20 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short5#1 := 42 == main_#t~mem4#1; 662#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 663#L22-2 [2023-11-06 22:12:01,137 INFO L750 eck$LassoCheckResult]: Loop: 663#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 663#L22-2 [2023-11-06 22:12:01,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:01,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1458388482, now seen corresponding path program 4 times [2023-11-06 22:12:01,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:01,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633034116] [2023-11-06 22:12:01,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:01,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:01,964 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:01,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:01,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633034116] [2023-11-06 22:12:01,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633034116] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:01,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117957458] [2023-11-06 22:12:01,964 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:12:01,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:01,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:01,968 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:01,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-06 22:12:02,102 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:12:02,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:12:02,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-06 22:12:02,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:12:02,238 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:02,238 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:12:03,226 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:03,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117957458] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:12:03,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:12:03,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2023-11-06 22:12:03,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387865219] [2023-11-06 22:12:03,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:12:03,227 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:12:03,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:03,228 INFO L85 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 6 times [2023-11-06 22:12:03,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:03,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383460694] [2023-11-06 22:12:03,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:03,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:12:03,232 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:12:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:12:03,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:12:03,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:03,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-11-06 22:12:03,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-11-06 22:12:03,252 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. cyclomatic complexity: 3 Second operand has 49 states, 49 states have (on average 2.0408163265306123) internal successors, (100), 49 states have internal predecessors, (100), 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) [2023-11-06 22:12:03,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:03,473 INFO L93 Difference]: Finished difference Result 100 states and 101 transitions. [2023-11-06 22:12:03,473 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 101 transitions. [2023-11-06 22:12:03,475 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:12:03,476 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 100 states and 101 transitions. [2023-11-06 22:12:03,477 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-06 22:12:03,477 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-06 22:12:03,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 100 states and 101 transitions. [2023-11-06 22:12:03,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:03,478 INFO L218 hiAutomatonCegarLoop]: Abstraction has 100 states and 101 transitions. [2023-11-06 22:12:03,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states and 101 transitions. [2023-11-06 22:12:03,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-11-06 22:12:03,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 100 states have (on average 1.01) internal successors, (101), 99 states have internal predecessors, (101), 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) [2023-11-06 22:12:03,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 101 transitions. [2023-11-06 22:12:03,484 INFO L240 hiAutomatonCegarLoop]: Abstraction has 100 states and 101 transitions. [2023-11-06 22:12:03,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-06 22:12:03,485 INFO L428 stractBuchiCegarLoop]: Abstraction has 100 states and 101 transitions. [2023-11-06 22:12:03,486 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-06 22:12:03,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 101 transitions. [2023-11-06 22:12:03,487 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:12:03,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:12:03,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:12:03,491 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [46, 46, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:03,491 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 22:12:03,491 INFO L748 eck$LassoCheckResult]: Stem: 1168#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1169#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 1162#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1163#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1164#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1165#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1171#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1259#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1258#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1257#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1256#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1255#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1254#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1253#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1252#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1251#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1250#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1249#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1248#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1247#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1246#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1245#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1244#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1243#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1242#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1241#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1240#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1239#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1238#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1237#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1236#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1235#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1234#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1233#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1232#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1231#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1230#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1229#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1228#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1227#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1226#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1225#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1224#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1223#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1222#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1221#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1220#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1219#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1218#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1217#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1216#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1215#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1214#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1213#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1212#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1211#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1210#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1209#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1208#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1207#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1206#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1205#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1204#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1203#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1202#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1201#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1200#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1199#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1198#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1197#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1196#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1195#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1194#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1193#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1192#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1191#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1190#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1189#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1188#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1187#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1186#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1185#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1184#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1183#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1182#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1181#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1180#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1179#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1178#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1177#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1176#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1175#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1174#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1173#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1172#L15-3 assume !(main_~i~0#1 < 1048); 1160#L15-4 havoc main_~i~0#1; 1161#L19 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 1170#L20 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short5#1 := 42 == main_#t~mem4#1; 1166#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 1167#L22-2 [2023-11-06 22:12:03,492 INFO L750 eck$LassoCheckResult]: Loop: 1167#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 1167#L22-2 [2023-11-06 22:12:03,492 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:03,492 INFO L85 PathProgramCache]: Analyzing trace with hash 546267602, now seen corresponding path program 5 times [2023-11-06 22:12:03,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:03,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074463499] [2023-11-06 22:12:03,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:03,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:06,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:06,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:06,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074463499] [2023-11-06 22:12:06,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074463499] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:06,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444745411] [2023-11-06 22:12:06,164 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:12:06,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:06,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:06,169 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:06,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-06 22:12:23,858 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-11-06 22:12:23,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:12:23,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-06 22:12:23,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:12:24,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:24,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:12:27,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:27,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444745411] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:12:27,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:12:27,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97 [2023-11-06 22:12:27,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535779897] [2023-11-06 22:12:27,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:12:27,540 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:12:27,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:27,541 INFO L85 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 7 times [2023-11-06 22:12:27,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:27,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029802783] [2023-11-06 22:12:27,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:27,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:12:27,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:12:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:12:27,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:12:27,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:27,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2023-11-06 22:12:27,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-11-06 22:12:27,574 INFO L87 Difference]: Start difference. First operand 100 states and 101 transitions. cyclomatic complexity: 3 Second operand has 97 states, 97 states have (on average 2.020618556701031) internal successors, (196), 97 states have internal predecessors, (196), 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) [2023-11-06 22:12:27,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:27,999 INFO L93 Difference]: Finished difference Result 196 states and 197 transitions. [2023-11-06 22:12:27,999 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 197 transitions. [2023-11-06 22:12:28,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:12:28,008 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 196 states and 197 transitions. [2023-11-06 22:12:28,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-06 22:12:28,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-06 22:12:28,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 196 states and 197 transitions. [2023-11-06 22:12:28,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:28,015 INFO L218 hiAutomatonCegarLoop]: Abstraction has 196 states and 197 transitions. [2023-11-06 22:12:28,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states and 197 transitions. [2023-11-06 22:12:28,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2023-11-06 22:12:28,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 196 states have (on average 1.0051020408163265) internal successors, (197), 195 states have internal predecessors, (197), 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) [2023-11-06 22:12:28,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 197 transitions. [2023-11-06 22:12:28,035 INFO L240 hiAutomatonCegarLoop]: Abstraction has 196 states and 197 transitions. [2023-11-06 22:12:28,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-11-06 22:12:28,038 INFO L428 stractBuchiCegarLoop]: Abstraction has 196 states and 197 transitions. [2023-11-06 22:12:28,038 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-06 22:12:28,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 196 states and 197 transitions. [2023-11-06 22:12:28,040 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:12:28,040 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:12:28,040 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:12:28,048 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [94, 94, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:28,054 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 22:12:28,055 INFO L748 eck$LassoCheckResult]: Stem: 2152#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2153#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 2146#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2147#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2148#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2149#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2155#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2339#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2338#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2337#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2336#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2335#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2334#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2333#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2332#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2331#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2330#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2329#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2328#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2327#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2326#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2325#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2324#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2323#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2322#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2321#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2320#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2319#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2318#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2317#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2316#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2315#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2314#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2313#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2312#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2311#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2310#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2309#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2308#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2307#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2306#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2305#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2304#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2303#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2302#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2301#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2300#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2299#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2298#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2297#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2296#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2295#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2294#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2293#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2292#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2291#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2290#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2289#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2288#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2287#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2286#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2285#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2284#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2283#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2282#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2281#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2280#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2279#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2278#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2277#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2276#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2275#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2274#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2273#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2272#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2271#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2270#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2269#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2268#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2267#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2266#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2265#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2264#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2263#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2262#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2261#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2260#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2259#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2258#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2257#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2256#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2255#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2254#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2253#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2252#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2251#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2250#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2249#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2248#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2247#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2246#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2245#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2244#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2243#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2242#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2241#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2240#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2239#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2238#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2237#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2236#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2235#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2234#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2233#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2232#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2231#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2230#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2229#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2228#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2227#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2226#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2225#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2224#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2223#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2222#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2221#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2220#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2219#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2218#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2217#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2216#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2215#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2214#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2213#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2212#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2211#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2210#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2209#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2208#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2207#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2206#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2205#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2204#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2203#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2202#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2201#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2200#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2199#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2198#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2197#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2196#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2195#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2194#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2193#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2192#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2191#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2190#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2189#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2188#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2187#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2186#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2185#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2184#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2183#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2182#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2181#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2180#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2179#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2178#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2177#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2176#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2175#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2174#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2173#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2172#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2171#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2170#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2169#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2168#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2167#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2166#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2165#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2164#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2163#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2162#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2161#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2160#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2159#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2158#L15-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet2#1;call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2157#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2156#L15-3 assume !(main_~i~0#1 < 1048); 2144#L15-4 havoc main_~i~0#1; 2145#L19 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 2154#L20 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short5#1 := 42 == main_#t~mem4#1; 2150#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 2151#L22-2 [2023-11-06 22:12:28,059 INFO L750 eck$LassoCheckResult]: Loop: 2151#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 2151#L22-2 [2023-11-06 22:12:28,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:28,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1352993138, now seen corresponding path program 6 times [2023-11-06 22:12:28,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:28,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593526728] [2023-11-06 22:12:28,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:28,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:36,384 INFO L134 CoverageAnalysis]: Checked inductivity of 8836 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:36,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:36,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593526728] [2023-11-06 22:12:36,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593526728] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:36,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78875345] [2023-11-06 22:12:36,385 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-06 22:12:36,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:36,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:36,388 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:36,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932ce328-813c-4568-a4f4-450aaf0bbcd5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process