./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-acceleration/array_3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/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_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-acceleration/array_3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/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 32bit --witnessprinter.graph.data.programhash 9c5d8dd6c87f471ee77fd3b765c8ecabfaf01dd976e127275ea7c589f724f472 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:53:45,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:53:45,945 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 22:53:45,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:53:45,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:53:45,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:53:45,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:53:45,981 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:53:45,982 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:53:45,983 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:53:45,984 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:53:45,984 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:53:45,985 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:53:45,985 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:53:45,986 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:53:45,987 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:53:45,987 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:53:45,988 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:53:45,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:53:45,989 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:53:45,990 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:53:45,990 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:53:45,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:53:45,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:53:45,992 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:53:45,992 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:53:45,993 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:53:45,993 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:53:45,994 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:53:45,994 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:53:45,995 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:53:45,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:53:45,995 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:53:45,996 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:53:45,996 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:53:45,997 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:53:45,997 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_f0c11693-580b-4a66-99b7-6082c97701f5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c5d8dd6c87f471ee77fd3b765c8ecabfaf01dd976e127275ea7c589f724f472 [2023-11-06 22:53:46,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:53:46,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:53:46,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:53:46,315 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:53:46,316 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:53:46,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/loop-acceleration/array_3-1.i [2023-11-06 22:53:49,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:53:49,751 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:53:49,752 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/sv-benchmarks/c/loop-acceleration/array_3-1.i [2023-11-06 22:53:49,759 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/data/3934461e0/f1ec66daf0d847be8aee25df25b60f54/FLAGbfb905a4f [2023-11-06 22:53:49,771 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/data/3934461e0/f1ec66daf0d847be8aee25df25b60f54 [2023-11-06 22:53:49,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:53:49,776 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:53:49,777 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:53:49,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:53:49,784 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:53:49,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:53:49" (1/1) ... [2023-11-06 22:53:49,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe0553e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:49, skipping insertion in model container [2023-11-06 22:53:49,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:53:49" (1/1) ... [2023-11-06 22:53:49,807 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:53:49,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:53:49,995 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:53:50,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:53:50,022 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:53:50,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:50 WrapperNode [2023-11-06 22:53:50,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:53:50,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:53:50,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:53:50,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:53:50,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:50" (1/1) ... [2023-11-06 22:53:50,039 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:50" (1/1) ... [2023-11-06 22:53:50,057 INFO L138 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 46 [2023-11-06 22:53:50,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:53:50,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:53:50,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:53:50,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:53:50,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:50" (1/1) ... [2023-11-06 22:53:50,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:50" (1/1) ... [2023-11-06 22:53:50,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:50" (1/1) ... [2023-11-06 22:53:50,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:50" (1/1) ... [2023-11-06 22:53:50,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:50" (1/1) ... [2023-11-06 22:53:50,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:50" (1/1) ... [2023-11-06 22:53:50,082 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:50" (1/1) ... [2023-11-06 22:53:50,083 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:50" (1/1) ... [2023-11-06 22:53:50,088 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:53:50,089 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:53:50,090 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:53:50,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:53:50,091 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:50" (1/1) ... [2023-11-06 22:53:50,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:50,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:50,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:50,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:53:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:53:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:53:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:53:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:53:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:53:50,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:53:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:53:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:53:50,234 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:53:50,236 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:53:50,371 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:53:50,377 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:53:50,378 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:53:50,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:50 BoogieIcfgContainer [2023-11-06 22:53:50,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:53:50,381 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:53:50,381 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:53:50,385 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:53:50,386 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:53:50,387 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:53:49" (1/3) ... [2023-11-06 22:53:50,388 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16826953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:53:50, skipping insertion in model container [2023-11-06 22:53:50,388 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:53:50,388 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:50" (2/3) ... [2023-11-06 22:53:50,389 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16826953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:53:50, skipping insertion in model container [2023-11-06 22:53:50,389 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:53:50,389 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:50" (3/3) ... [2023-11-06 22:53:50,390 INFO L332 chiAutomizerObserver]: Analyzing ICFG array_3-1.i [2023-11-06 22:53:50,446 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:53:50,447 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:53:50,447 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:53:50,447 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:53:50,447 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:53:50,448 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:53:50,448 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:53:50,448 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:53:50,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 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 22:53:50,468 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-06 22:53:50,468 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:53:50,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:53:50,474 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:53:50,474 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:53:50,475 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:53:50,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 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 22:53:50,477 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-06 22:53:50,478 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:53:50,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:53:50,478 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:53:50,478 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:53:50,484 INFO L748 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~post1#1, main_#t~post3#1, main_#t~mem4#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~i~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(4096);havoc main_~i~0#1;main_~i~0#1 := 0; 14#L24-3true [2023-11-06 22:53:50,485 INFO L750 eck$LassoCheckResult]: Loop: 14#L24-3true assume !!(main_~i~0#1 < 1024);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; 5#L24-2true main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 14#L24-3true [2023-11-06 22:53:50,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:50,490 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 22:53:50,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:50,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283126026] [2023-11-06 22:53:50,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:50,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:50,637 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:53:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:50,685 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:53:50,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:50,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2023-11-06 22:53:50,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:50,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444732846] [2023-11-06 22:53:50,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:50,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:50,724 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:53:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:50,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:53:50,739 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:50,740 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2023-11-06 22:53:50,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:50,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601972076] [2023-11-06 22:53:50,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:50,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:50,791 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:53:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:50,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:53:51,270 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:53:51,271 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:53:51,271 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:53:51,271 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:53:51,271 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:53:51,271 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:51,271 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:53:51,272 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:53:51,272 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_3-1.i_Iteration1_Lasso [2023-11-06 22:53:51,272 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:53:51,272 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:53:51,297 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 22:53:51,309 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 22:53:51,313 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 22:53:51,317 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 22:53:51,581 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 22:53:51,585 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 22:53:51,848 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:53:51,854 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:53:51,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:51,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:51,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:51,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 22:53:51,893 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 22:53:51,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:53:51,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:53:51,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:53:51,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:53:51,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:53:51,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:53:51,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:53:51,924 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:53:51,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:51,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:51,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:51,937 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:51,946 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 22:53:51,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:53:51,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:53:51,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:53:51,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:53:51,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:53:51,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:53:51,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:53:51,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:53:51,972 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:53:51,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:51,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:51,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:51,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:51,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:53:51,992 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 22:53:52,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:53:52,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:53:52,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:53:52,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:53:52,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:53:52,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:53:52,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:53:52,011 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:53:52,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:52,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:52,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:52,017 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:52,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:53:52,029 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 22:53:52,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:53:52,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:53:52,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:53:52,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:53:52,047 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:53:52,047 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:53:52,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:53:52,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:52,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:52,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:52,065 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:52,073 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 22:53:52,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:53:52,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:53:52,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:53:52,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:53:52,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:53:52,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:53:52,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:53:52,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:53:52,094 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:53:52,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:52,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:52,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:52,104 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:52,113 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 22:53:52,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:53:52,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:53:52,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:53:52,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:53:52,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:53:52,131 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:53:52,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:53:52,145 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:53:52,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:52,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:52,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:52,151 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:52,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:53:52,161 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 22:53:52,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:53:52,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:53:52,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:53:52,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:53:52,180 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:53:52,180 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:53:52,192 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:53:52,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:52,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:52,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:52,202 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:52,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:53:52,209 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 22:53:52,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:53:52,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:53:52,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:53:52,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:53:52,226 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:53:52,226 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:53:52,243 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:53:52,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:52,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:52,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:52,250 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:52,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:53:52,257 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 22:53:52,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:53:52,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:53:52,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:53:52,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:53:52,272 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:53:52,272 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:53:52,292 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:53:52,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:52,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:52,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:52,301 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:52,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 22:53:52,314 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 22:53:52,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:53:52,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:53:52,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:53:52,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:53:52,331 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:53:52,331 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:53:52,343 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:53:52,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:52,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:52,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:52,353 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:52,365 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 22:53:52,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:53:52,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:53:52,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:53:52,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:53:52,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:53:52,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:53:52,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 22:53:52,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:53:52,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:52,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:52,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:52,410 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:52,414 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 22:53:52,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 22:53:52,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:53:52,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:53:52,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:53:52,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:53:52,429 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:53:52,429 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:53:52,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:53:52,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:52,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:52,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:52,470 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:52,486 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 22:53:52,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:53:52,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:53:52,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:53:52,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:53:52,501 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:53:52,501 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:53:52,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 22:53:52,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:53:52,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:52,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:52,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:52,522 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:52,533 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 22:53:52,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:53:52,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:53:52,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:53:52,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:53:52,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-06 22:53:52,558 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:53:52,558 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:53:52,588 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:53:52,645 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2023-11-06 22:53:52,646 INFO L444 ModelExtractionUtils]: 1 out of 13 variables were initially zero. Simplification set additionally 9 variables to zero. [2023-11-06 22:53:52,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:53:52,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:52,692 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:52,694 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:53:52,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 22:53:52,713 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-06 22:53:52,713 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:53:52,713 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select #length ULTIMATE.start_main_~#A~0#1.base)_1) = -8*ULTIMATE.start_main_~i~0#1 + 2047*v_rep(select #length ULTIMATE.start_main_~#A~0#1.base)_1 Supporting invariants [] [2023-11-06 22:53:52,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:52,747 INFO L156 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2023-11-06 22:53:52,757 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[~#A~0!base] could not be translated [2023-11-06 22:53:52,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:52,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:53:52,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:53:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:52,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:53:52,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:53:52,846 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 22:53:52,890 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 22:53:52,892 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 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 22:53:52,968 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 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 35 states and 49 transitions. Complement of second has 8 states. [2023-11-06 22:53:52,975 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 22:53:52,981 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 22:53:52,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2023-11-06 22:53:52,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-06 22:53:52,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:53:52,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-06 22:53:52,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:53:52,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-06 22:53:52,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:53:52,987 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 49 transitions. [2023-11-06 22:53:52,993 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:53:52,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 10 states and 12 transitions. [2023-11-06 22:53:52,998 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-06 22:53:52,999 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-06 22:53:53,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2023-11-06 22:53:53,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:53:53,000 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-11-06 22:53:53,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2023-11-06 22:53:53,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-06 22:53:53,027 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 22:53:53,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2023-11-06 22:53:53,028 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-11-06 22:53:53,028 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-11-06 22:53:53,028 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:53:53,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2023-11-06 22:53:53,029 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:53:53,029 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:53:53,029 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:53:53,030 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-06 22:53:53,030 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:53:53,030 INFO L748 eck$LassoCheckResult]: Stem: 116#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 117#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~post1#1, main_#t~post3#1, main_#t~mem4#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~i~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(4096);havoc main_~i~0#1;main_~i~0#1 := 0; 120#L24-3 assume !(main_~i~0#1 < 1024); 121#L24-4 main_~i~0#1 := 0; 119#L28-4 [2023-11-06 22:53:53,030 INFO L750 eck$LassoCheckResult]: Loop: 119#L28-4 call main_#t~mem4#1 := read~int(main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4); 114#L28-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1; 115#L29 assume !(main_~i~0#1 >= 1023); 118#L28-3 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 119#L28-4 [2023-11-06 22:53:53,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:53,031 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2023-11-06 22:53:53,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:53,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168495275] [2023-11-06 22:53:53,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:53,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:53,103 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 22:53:53,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:53,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168495275] [2023-11-06 22:53:53,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168495275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:53,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:53,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:53:53,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954266503] [2023-11-06 22:53:53,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:53,107 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:53:53,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:53,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1544328, now seen corresponding path program 1 times [2023-11-06 22:53:53,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:53,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673646900] [2023-11-06 22:53:53,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:53,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:53,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:53:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:53,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:53:53,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:53,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:53:53,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:53:53,170 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. cyclomatic complexity: 4 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 22:53:53,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:53,189 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2023-11-06 22:53:53,189 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2023-11-06 22:53:53,190 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:53:53,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2023-11-06 22:53:53,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-06 22:53:53,191 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-06 22:53:53,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2023-11-06 22:53:53,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:53:53,192 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 16 transitions. [2023-11-06 22:53:53,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2023-11-06 22:53:53,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 10. [2023-11-06 22:53:53,193 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 22:53:53,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2023-11-06 22:53:53,194 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 11 transitions. [2023-11-06 22:53:53,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:53:53,195 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2023-11-06 22:53:53,196 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:53:53,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 11 transitions. [2023-11-06 22:53:53,196 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:53:53,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:53:53,196 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:53:53,197 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:53:53,197 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:53:53,197 INFO L748 eck$LassoCheckResult]: Stem: 147#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 148#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~post1#1, main_#t~post3#1, main_#t~mem4#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~i~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(4096);havoc main_~i~0#1;main_~i~0#1 := 0; 151#L24-3 assume !!(main_~i~0#1 < 1024);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; 143#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 144#L24-3 assume !(main_~i~0#1 < 1024); 152#L24-4 main_~i~0#1 := 0; 150#L28-4 [2023-11-06 22:53:53,197 INFO L750 eck$LassoCheckResult]: Loop: 150#L28-4 call main_#t~mem4#1 := read~int(main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4); 145#L28-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1; 146#L29 assume !(main_~i~0#1 >= 1023); 149#L28-3 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 150#L28-4 [2023-11-06 22:53:53,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:53,198 INFO L85 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2023-11-06 22:53:53,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:53,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827828994] [2023-11-06 22:53:53,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:53,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:53,247 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 22:53:53,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:53,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827828994] [2023-11-06 22:53:53,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827828994] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:53:53,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373273568] [2023-11-06 22:53:53,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:53,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:53:53,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:53,250 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:53:53,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-06 22:53:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:53,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:53:53,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:53:53,310 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 22:53:53,311 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:53:53,332 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 22:53:53,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373273568] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:53:53,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:53:53,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-06 22:53:53,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119041680] [2023-11-06 22:53:53,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:53:53,333 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:53:53,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:53,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1544328, now seen corresponding path program 2 times [2023-11-06 22:53:53,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:53,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035771495] [2023-11-06 22:53:53,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:53,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:53,340 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:53:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:53,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:53:53,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:53,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:53:53,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:53:53,408 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 1.8571428571428572) internal successors, (13), 7 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 22:53:53,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:53,485 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2023-11-06 22:53:53,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 28 transitions. [2023-11-06 22:53:53,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:53:53,497 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 28 transitions. [2023-11-06 22:53:53,497 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-11-06 22:53:53,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-06 22:53:53,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 28 transitions. [2023-11-06 22:53:53,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:53:53,498 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 28 transitions. [2023-11-06 22:53:53,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 28 transitions. [2023-11-06 22:53:53,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 16. [2023-11-06 22:53:53,501 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 22:53:53,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2023-11-06 22:53:53,503 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-06 22:53:53,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:53:53,505 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-06 22:53:53,505 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:53:53,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 17 transitions. [2023-11-06 22:53:53,506 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:53:53,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:53:53,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:53:53,508 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2023-11-06 22:53:53,508 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:53:53,508 INFO L748 eck$LassoCheckResult]: Stem: 224#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 225#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~post1#1, main_#t~post3#1, main_#t~mem4#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~i~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(4096);havoc main_~i~0#1;main_~i~0#1 := 0; 228#L24-3 assume !!(main_~i~0#1 < 1024);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; 220#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 221#L24-3 assume !!(main_~i~0#1 < 1024);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; 229#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 235#L24-3 assume !!(main_~i~0#1 < 1024);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; 234#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 233#L24-3 assume !!(main_~i~0#1 < 1024);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; 232#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 231#L24-3 assume !(main_~i~0#1 < 1024); 230#L24-4 main_~i~0#1 := 0; 227#L28-4 [2023-11-06 22:53:53,508 INFO L750 eck$LassoCheckResult]: Loop: 227#L28-4 call main_#t~mem4#1 := read~int(main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4); 222#L28-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1; 223#L29 assume !(main_~i~0#1 >= 1023); 226#L28-3 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 227#L28-4 [2023-11-06 22:53:53,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:53,509 INFO L85 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 2 times [2023-11-06 22:53:53,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:53,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256113183] [2023-11-06 22:53:53,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:53,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:53,666 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 22:53:53,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:53,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256113183] [2023-11-06 22:53:53,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256113183] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:53:53,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429303357] [2023-11-06 22:53:53,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:53:53,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:53:53,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:53,670 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:53:53,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-06 22:53:53,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:53:53,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:53:53,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:53,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:53:53,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:53:53,802 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 22:53:53,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:53:53,882 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 22:53:53,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429303357] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:53:53,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:53:53,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-06 22:53:53,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485775266] [2023-11-06 22:53:53,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:53:53,884 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:53:53,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:53,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1544328, now seen corresponding path program 3 times [2023-11-06 22:53:53,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:53,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105717854] [2023-11-06 22:53:53,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:53,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:53,890 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:53:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:53,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:53:53,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:53,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:53:53,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:53:53,955 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 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:53:54,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:54,082 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2023-11-06 22:53:54,082 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 64 transitions. [2023-11-06 22:53:54,087 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:53:54,088 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 63 states and 64 transitions. [2023-11-06 22:53:54,088 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2023-11-06 22:53:54,097 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2023-11-06 22:53:54,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 64 transitions. [2023-11-06 22:53:54,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:53:54,098 INFO L218 hiAutomatonCegarLoop]: Abstraction has 63 states and 64 transitions. [2023-11-06 22:53:54,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 64 transitions. [2023-11-06 22:53:54,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 28. [2023-11-06 22:53:54,103 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 22:53:54,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2023-11-06 22:53:54,104 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-11-06 22:53:54,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:53:54,106 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-11-06 22:53:54,106 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 22:53:54,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 29 transitions. [2023-11-06 22:53:54,110 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:53:54,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:53:54,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:53:54,127 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1] [2023-11-06 22:53:54,127 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:53:54,127 INFO L748 eck$LassoCheckResult]: Stem: 385#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 386#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~post1#1, main_#t~post3#1, main_#t~mem4#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~i~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(4096);havoc main_~i~0#1;main_~i~0#1 := 0; 389#L24-3 assume !!(main_~i~0#1 < 1024);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; 381#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 382#L24-3 assume !!(main_~i~0#1 < 1024);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; 390#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 408#L24-3 assume !!(main_~i~0#1 < 1024);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#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 406#L24-3 assume !!(main_~i~0#1 < 1024);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#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 404#L24-3 assume !!(main_~i~0#1 < 1024);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; 403#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 402#L24-3 assume !!(main_~i~0#1 < 1024);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; 401#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 400#L24-3 assume !!(main_~i~0#1 < 1024);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; 399#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 398#L24-3 assume !!(main_~i~0#1 < 1024);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#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 396#L24-3 assume !!(main_~i~0#1 < 1024);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#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 394#L24-3 assume !!(main_~i~0#1 < 1024);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; 393#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 392#L24-3 assume !(main_~i~0#1 < 1024); 391#L24-4 main_~i~0#1 := 0; 388#L28-4 [2023-11-06 22:53:54,127 INFO L750 eck$LassoCheckResult]: Loop: 388#L28-4 call main_#t~mem4#1 := read~int(main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4); 383#L28-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1; 384#L29 assume !(main_~i~0#1 >= 1023); 387#L28-3 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 388#L28-4 [2023-11-06 22:53:54,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:54,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2127272351, now seen corresponding path program 3 times [2023-11-06 22:53:54,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:54,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999276182] [2023-11-06 22:53:54,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:54,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:54,404 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 22:53:54,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:54,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999276182] [2023-11-06 22:53:54,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999276182] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:53:54,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892412461] [2023-11-06 22:53:54,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:53:54,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:53:54,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:54,406 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:53:54,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-06 22:53:54,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-06 22:53:54,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:53:54,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:53:54,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:53:54,603 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 22:53:54,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:53:54,859 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 22:53:54,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892412461] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:53:54,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:53:54,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2023-11-06 22:53:54,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966289404] [2023-11-06 22:53:54,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:53:54,860 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:53:54,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:54,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1544328, now seen corresponding path program 4 times [2023-11-06 22:53:54,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:54,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256330028] [2023-11-06 22:53:54,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:54,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:54,869 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:53:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:54,876 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:53:54,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:54,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-06 22:53:54,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-06 22:53:54,924 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 1.96) internal successors, (49), 25 states have internal predecessors, (49), 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 22:53:55,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:55,203 INFO L93 Difference]: Finished difference Result 135 states and 136 transitions. [2023-11-06 22:53:55,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 135 states and 136 transitions. [2023-11-06 22:53:55,211 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:53:55,213 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 135 states to 135 states and 136 transitions. [2023-11-06 22:53:55,213 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 91 [2023-11-06 22:53:55,214 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91 [2023-11-06 22:53:55,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 136 transitions. [2023-11-06 22:53:55,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:53:55,218 INFO L218 hiAutomatonCegarLoop]: Abstraction has 135 states and 136 transitions. [2023-11-06 22:53:55,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 136 transitions. [2023-11-06 22:53:55,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 52. [2023-11-06 22:53:55,228 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 22:53:55,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2023-11-06 22:53:55,229 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 53 transitions. [2023-11-06 22:53:55,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-06 22:53:55,239 INFO L428 stractBuchiCegarLoop]: Abstraction has 52 states and 53 transitions. [2023-11-06 22:53:55,239 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-06 22:53:55,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 53 transitions. [2023-11-06 22:53:55,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:53:55,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:53:55,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:53:55,243 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [22, 22, 1, 1, 1, 1] [2023-11-06 22:53:55,243 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:53:55,245 INFO L748 eck$LassoCheckResult]: Stem: 714#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 715#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~post1#1, main_#t~post3#1, main_#t~mem4#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~i~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(4096);havoc main_~i~0#1;main_~i~0#1 := 0; 718#L24-3 assume !!(main_~i~0#1 < 1024);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; 710#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 711#L24-3 assume !!(main_~i~0#1 < 1024);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; 719#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 761#L24-3 assume !!(main_~i~0#1 < 1024);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; 760#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 759#L24-3 assume !!(main_~i~0#1 < 1024);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; 758#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 757#L24-3 assume !!(main_~i~0#1 < 1024);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; 756#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 755#L24-3 assume !!(main_~i~0#1 < 1024);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; 754#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 753#L24-3 assume !!(main_~i~0#1 < 1024);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; 752#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 751#L24-3 assume !!(main_~i~0#1 < 1024);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; 750#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 749#L24-3 assume !!(main_~i~0#1 < 1024);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; 748#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 747#L24-3 assume !!(main_~i~0#1 < 1024);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; 746#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 745#L24-3 assume !!(main_~i~0#1 < 1024);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; 744#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 743#L24-3 assume !!(main_~i~0#1 < 1024);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; 742#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 741#L24-3 assume !!(main_~i~0#1 < 1024);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; 740#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 739#L24-3 assume !!(main_~i~0#1 < 1024);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; 738#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 737#L24-3 assume !!(main_~i~0#1 < 1024);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; 736#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 735#L24-3 assume !!(main_~i~0#1 < 1024);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; 734#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 733#L24-3 assume !!(main_~i~0#1 < 1024);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; 732#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 731#L24-3 assume !!(main_~i~0#1 < 1024);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; 730#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 729#L24-3 assume !!(main_~i~0#1 < 1024);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; 728#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 727#L24-3 assume !!(main_~i~0#1 < 1024);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; 726#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 725#L24-3 assume !!(main_~i~0#1 < 1024);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; 724#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 723#L24-3 assume !!(main_~i~0#1 < 1024);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; 722#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 721#L24-3 assume !(main_~i~0#1 < 1024); 720#L24-4 main_~i~0#1 := 0; 717#L28-4 [2023-11-06 22:53:55,246 INFO L750 eck$LassoCheckResult]: Loop: 717#L28-4 call main_#t~mem4#1 := read~int(main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4); 712#L28-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1; 713#L29 assume !(main_~i~0#1 >= 1023); 716#L28-3 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 717#L28-4 [2023-11-06 22:53:55,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:55,246 INFO L85 PathProgramCache]: Analyzing trace with hash 828161207, now seen corresponding path program 4 times [2023-11-06 22:53:55,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:55,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783005812] [2023-11-06 22:53:55,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:55,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:56,051 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 22:53:56,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:56,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783005812] [2023-11-06 22:53:56,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783005812] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:53:56,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904276850] [2023-11-06 22:53:56,052 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:53:56,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:53:56,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:56,056 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:53:56,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-06 22:53:56,206 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:53:56,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:53:56,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-06 22:53:56,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:53:56,340 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 22:53:56,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:53:57,276 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 22:53:57,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904276850] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:53:57,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:53:57,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2023-11-06 22:53:57,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917969328] [2023-11-06 22:53:57,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:53:57,278 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:53:57,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:57,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1544328, now seen corresponding path program 5 times [2023-11-06 22:53:57,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:57,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388406402] [2023-11-06 22:53:57,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:57,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:57,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:53:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:57,292 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:53:57,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:57,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-11-06 22:53:57,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-11-06 22:53:57,360 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 1.9795918367346939) internal successors, (97), 49 states have internal predecessors, (97), 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 22:53:58,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:58,080 INFO L93 Difference]: Finished difference Result 279 states and 280 transitions. [2023-11-06 22:53:58,080 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 279 states and 280 transitions. [2023-11-06 22:53:58,083 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:53:58,086 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 279 states to 279 states and 280 transitions. [2023-11-06 22:53:58,086 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 187 [2023-11-06 22:53:58,087 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 187 [2023-11-06 22:53:58,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 279 states and 280 transitions. [2023-11-06 22:53:58,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:53:58,088 INFO L218 hiAutomatonCegarLoop]: Abstraction has 279 states and 280 transitions. [2023-11-06 22:53:58,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states and 280 transitions. [2023-11-06 22:53:58,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 100. [2023-11-06 22:53:58,095 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 22:53:58,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 101 transitions. [2023-11-06 22:53:58,097 INFO L240 hiAutomatonCegarLoop]: Abstraction has 100 states and 101 transitions. [2023-11-06 22:53:58,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-06 22:53:58,098 INFO L428 stractBuchiCegarLoop]: Abstraction has 100 states and 101 transitions. [2023-11-06 22:53:58,098 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-06 22:53:58,098 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 101 transitions. [2023-11-06 22:53:58,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:53:58,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:53:58,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:53:58,102 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [46, 46, 1, 1, 1, 1] [2023-11-06 22:53:58,103 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:53:58,103 INFO L748 eck$LassoCheckResult]: Stem: 1379#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 1380#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~post1#1, main_#t~post3#1, main_#t~mem4#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~i~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(4096);havoc main_~i~0#1;main_~i~0#1 := 0; 1383#L24-3 assume !!(main_~i~0#1 < 1024);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; 1375#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1376#L24-3 assume !!(main_~i~0#1 < 1024);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; 1384#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1474#L24-3 assume !!(main_~i~0#1 < 1024);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; 1473#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1472#L24-3 assume !!(main_~i~0#1 < 1024);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; 1471#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1470#L24-3 assume !!(main_~i~0#1 < 1024);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; 1469#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1468#L24-3 assume !!(main_~i~0#1 < 1024);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; 1467#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1466#L24-3 assume !!(main_~i~0#1 < 1024);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; 1465#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1464#L24-3 assume !!(main_~i~0#1 < 1024);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; 1463#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1462#L24-3 assume !!(main_~i~0#1 < 1024);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; 1461#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1460#L24-3 assume !!(main_~i~0#1 < 1024);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; 1459#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1458#L24-3 assume !!(main_~i~0#1 < 1024);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; 1457#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1456#L24-3 assume !!(main_~i~0#1 < 1024);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; 1455#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1454#L24-3 assume !!(main_~i~0#1 < 1024);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; 1453#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1452#L24-3 assume !!(main_~i~0#1 < 1024);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; 1451#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1450#L24-3 assume !!(main_~i~0#1 < 1024);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; 1449#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1448#L24-3 assume !!(main_~i~0#1 < 1024);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; 1447#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1446#L24-3 assume !!(main_~i~0#1 < 1024);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; 1445#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1444#L24-3 assume !!(main_~i~0#1 < 1024);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; 1443#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1442#L24-3 assume !!(main_~i~0#1 < 1024);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; 1441#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1440#L24-3 assume !!(main_~i~0#1 < 1024);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; 1439#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1438#L24-3 assume !!(main_~i~0#1 < 1024);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; 1437#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1436#L24-3 assume !!(main_~i~0#1 < 1024);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; 1435#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1434#L24-3 assume !!(main_~i~0#1 < 1024);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; 1433#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1432#L24-3 assume !!(main_~i~0#1 < 1024);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; 1431#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1430#L24-3 assume !!(main_~i~0#1 < 1024);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; 1429#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1428#L24-3 assume !!(main_~i~0#1 < 1024);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; 1427#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1426#L24-3 assume !!(main_~i~0#1 < 1024);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; 1425#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1424#L24-3 assume !!(main_~i~0#1 < 1024);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; 1423#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1422#L24-3 assume !!(main_~i~0#1 < 1024);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; 1421#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1420#L24-3 assume !!(main_~i~0#1 < 1024);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; 1419#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1418#L24-3 assume !!(main_~i~0#1 < 1024);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; 1417#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1416#L24-3 assume !!(main_~i~0#1 < 1024);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; 1415#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1414#L24-3 assume !!(main_~i~0#1 < 1024);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; 1413#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1412#L24-3 assume !!(main_~i~0#1 < 1024);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; 1411#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1410#L24-3 assume !!(main_~i~0#1 < 1024);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; 1409#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1408#L24-3 assume !!(main_~i~0#1 < 1024);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; 1407#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1406#L24-3 assume !!(main_~i~0#1 < 1024);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; 1405#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1404#L24-3 assume !!(main_~i~0#1 < 1024);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; 1403#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1402#L24-3 assume !!(main_~i~0#1 < 1024);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; 1401#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1400#L24-3 assume !!(main_~i~0#1 < 1024);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; 1399#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1398#L24-3 assume !!(main_~i~0#1 < 1024);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; 1397#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1396#L24-3 assume !!(main_~i~0#1 < 1024);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; 1395#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1394#L24-3 assume !!(main_~i~0#1 < 1024);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; 1393#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1392#L24-3 assume !!(main_~i~0#1 < 1024);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; 1391#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1390#L24-3 assume !!(main_~i~0#1 < 1024);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; 1389#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1388#L24-3 assume !!(main_~i~0#1 < 1024);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; 1387#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1386#L24-3 assume !(main_~i~0#1 < 1024); 1385#L24-4 main_~i~0#1 := 0; 1382#L28-4 [2023-11-06 22:53:58,103 INFO L750 eck$LassoCheckResult]: Loop: 1382#L28-4 call main_#t~mem4#1 := read~int(main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4); 1377#L28-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1; 1378#L29 assume !(main_~i~0#1 >= 1023); 1381#L28-3 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1382#L28-4 [2023-11-06 22:53:58,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:58,104 INFO L85 PathProgramCache]: Analyzing trace with hash 830581479, now seen corresponding path program 5 times [2023-11-06 22:53:58,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:58,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050430803] [2023-11-06 22:53:58,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:58,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:00,939 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 22:54:00,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:00,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050430803] [2023-11-06 22:54:00,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050430803] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:00,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359319286] [2023-11-06 22:54:00,940 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:54:00,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:00,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:00,943 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:00,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-06 22:54:27,209 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-11-06 22:54:27,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:54:27,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-06 22:54:27,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:27,444 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 22:54:27,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:30,891 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 22:54:30,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359319286] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:30,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:54:30,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97 [2023-11-06 22:54:30,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456002656] [2023-11-06 22:54:30,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:30,893 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:54:30,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:30,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1544328, now seen corresponding path program 6 times [2023-11-06 22:54:30,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:30,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896250695] [2023-11-06 22:54:30,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:30,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:54:30,899 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:54:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:54:30,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:54:30,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:30,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2023-11-06 22:54:30,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-11-06 22:54:30,957 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 1.9896907216494846) internal successors, (193), 97 states have internal predecessors, (193), 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 22:54:33,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:33,630 INFO L93 Difference]: Finished difference Result 567 states and 568 transitions. [2023-11-06 22:54:33,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 567 states and 568 transitions. [2023-11-06 22:54:33,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:54:33,640 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 567 states to 567 states and 568 transitions. [2023-11-06 22:54:33,640 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 379 [2023-11-06 22:54:33,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 379 [2023-11-06 22:54:33,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 567 states and 568 transitions. [2023-11-06 22:54:33,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:33,641 INFO L218 hiAutomatonCegarLoop]: Abstraction has 567 states and 568 transitions. [2023-11-06 22:54:33,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states and 568 transitions. [2023-11-06 22:54:33,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 196. [2023-11-06 22:54:33,652 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 22:54:33,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 197 transitions. [2023-11-06 22:54:33,655 INFO L240 hiAutomatonCegarLoop]: Abstraction has 196 states and 197 transitions. [2023-11-06 22:54:33,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-11-06 22:54:33,661 INFO L428 stractBuchiCegarLoop]: Abstraction has 196 states and 197 transitions. [2023-11-06 22:54:33,661 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-06 22:54:33,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 196 states and 197 transitions. [2023-11-06 22:54:33,662 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:54:33,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:54:33,662 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:54:33,665 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [94, 94, 1, 1, 1, 1] [2023-11-06 22:54:33,665 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:54:33,666 INFO L748 eck$LassoCheckResult]: Stem: 2716#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 2717#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~post1#1, main_#t~post3#1, main_#t~mem4#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~i~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(4096);havoc main_~i~0#1;main_~i~0#1 := 0; 2720#L24-3 assume !!(main_~i~0#1 < 1024);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; 2712#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2713#L24-3 assume !!(main_~i~0#1 < 1024);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; 2721#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2907#L24-3 assume !!(main_~i~0#1 < 1024);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; 2906#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2905#L24-3 assume !!(main_~i~0#1 < 1024);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; 2904#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2903#L24-3 assume !!(main_~i~0#1 < 1024);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; 2902#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2901#L24-3 assume !!(main_~i~0#1 < 1024);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; 2900#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2899#L24-3 assume !!(main_~i~0#1 < 1024);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; 2898#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2897#L24-3 assume !!(main_~i~0#1 < 1024);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; 2896#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2895#L24-3 assume !!(main_~i~0#1 < 1024);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; 2894#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2893#L24-3 assume !!(main_~i~0#1 < 1024);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; 2892#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2891#L24-3 assume !!(main_~i~0#1 < 1024);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; 2890#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2889#L24-3 assume !!(main_~i~0#1 < 1024);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; 2888#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2887#L24-3 assume !!(main_~i~0#1 < 1024);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; 2886#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2885#L24-3 assume !!(main_~i~0#1 < 1024);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; 2884#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2883#L24-3 assume !!(main_~i~0#1 < 1024);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; 2882#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2881#L24-3 assume !!(main_~i~0#1 < 1024);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; 2880#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2879#L24-3 assume !!(main_~i~0#1 < 1024);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; 2878#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2877#L24-3 assume !!(main_~i~0#1 < 1024);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; 2876#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2875#L24-3 assume !!(main_~i~0#1 < 1024);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; 2874#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2873#L24-3 assume !!(main_~i~0#1 < 1024);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; 2872#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2871#L24-3 assume !!(main_~i~0#1 < 1024);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; 2870#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2869#L24-3 assume !!(main_~i~0#1 < 1024);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; 2868#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2867#L24-3 assume !!(main_~i~0#1 < 1024);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; 2866#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2865#L24-3 assume !!(main_~i~0#1 < 1024);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; 2864#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2863#L24-3 assume !!(main_~i~0#1 < 1024);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; 2862#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2861#L24-3 assume !!(main_~i~0#1 < 1024);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; 2860#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2859#L24-3 assume !!(main_~i~0#1 < 1024);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; 2858#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2857#L24-3 assume !!(main_~i~0#1 < 1024);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; 2856#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2855#L24-3 assume !!(main_~i~0#1 < 1024);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; 2854#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2853#L24-3 assume !!(main_~i~0#1 < 1024);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; 2852#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2851#L24-3 assume !!(main_~i~0#1 < 1024);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; 2850#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2849#L24-3 assume !!(main_~i~0#1 < 1024);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; 2848#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2847#L24-3 assume !!(main_~i~0#1 < 1024);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; 2846#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2845#L24-3 assume !!(main_~i~0#1 < 1024);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; 2844#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2843#L24-3 assume !!(main_~i~0#1 < 1024);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; 2842#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2841#L24-3 assume !!(main_~i~0#1 < 1024);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; 2840#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2839#L24-3 assume !!(main_~i~0#1 < 1024);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; 2838#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2837#L24-3 assume !!(main_~i~0#1 < 1024);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; 2836#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2835#L24-3 assume !!(main_~i~0#1 < 1024);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; 2834#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2833#L24-3 assume !!(main_~i~0#1 < 1024);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; 2832#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2831#L24-3 assume !!(main_~i~0#1 < 1024);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; 2830#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2829#L24-3 assume !!(main_~i~0#1 < 1024);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; 2828#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2827#L24-3 assume !!(main_~i~0#1 < 1024);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; 2826#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2825#L24-3 assume !!(main_~i~0#1 < 1024);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; 2824#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2823#L24-3 assume !!(main_~i~0#1 < 1024);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; 2822#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2821#L24-3 assume !!(main_~i~0#1 < 1024);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; 2820#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2819#L24-3 assume !!(main_~i~0#1 < 1024);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; 2818#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2817#L24-3 assume !!(main_~i~0#1 < 1024);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; 2816#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2815#L24-3 assume !!(main_~i~0#1 < 1024);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; 2814#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2813#L24-3 assume !!(main_~i~0#1 < 1024);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; 2812#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2811#L24-3 assume !!(main_~i~0#1 < 1024);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; 2810#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2809#L24-3 assume !!(main_~i~0#1 < 1024);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; 2808#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2807#L24-3 assume !!(main_~i~0#1 < 1024);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; 2806#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2805#L24-3 assume !!(main_~i~0#1 < 1024);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; 2804#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2803#L24-3 assume !!(main_~i~0#1 < 1024);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; 2802#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2801#L24-3 assume !!(main_~i~0#1 < 1024);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; 2800#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2799#L24-3 assume !!(main_~i~0#1 < 1024);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; 2798#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2797#L24-3 assume !!(main_~i~0#1 < 1024);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; 2796#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2795#L24-3 assume !!(main_~i~0#1 < 1024);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; 2794#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2793#L24-3 assume !!(main_~i~0#1 < 1024);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; 2792#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2791#L24-3 assume !!(main_~i~0#1 < 1024);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; 2790#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2789#L24-3 assume !!(main_~i~0#1 < 1024);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; 2788#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2787#L24-3 assume !!(main_~i~0#1 < 1024);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; 2786#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2785#L24-3 assume !!(main_~i~0#1 < 1024);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; 2784#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2783#L24-3 assume !!(main_~i~0#1 < 1024);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; 2782#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2781#L24-3 assume !!(main_~i~0#1 < 1024);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; 2780#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2779#L24-3 assume !!(main_~i~0#1 < 1024);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; 2778#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2777#L24-3 assume !!(main_~i~0#1 < 1024);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; 2776#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2775#L24-3 assume !!(main_~i~0#1 < 1024);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; 2774#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2773#L24-3 assume !!(main_~i~0#1 < 1024);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; 2772#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2771#L24-3 assume !!(main_~i~0#1 < 1024);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; 2770#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2769#L24-3 assume !!(main_~i~0#1 < 1024);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; 2768#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2767#L24-3 assume !!(main_~i~0#1 < 1024);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; 2766#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2765#L24-3 assume !!(main_~i~0#1 < 1024);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; 2764#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2763#L24-3 assume !!(main_~i~0#1 < 1024);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; 2762#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2761#L24-3 assume !!(main_~i~0#1 < 1024);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; 2760#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2759#L24-3 assume !!(main_~i~0#1 < 1024);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; 2758#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2757#L24-3 assume !!(main_~i~0#1 < 1024);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; 2756#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2755#L24-3 assume !!(main_~i~0#1 < 1024);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; 2754#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2753#L24-3 assume !!(main_~i~0#1 < 1024);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; 2752#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2751#L24-3 assume !!(main_~i~0#1 < 1024);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; 2750#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2749#L24-3 assume !!(main_~i~0#1 < 1024);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; 2748#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2747#L24-3 assume !!(main_~i~0#1 < 1024);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; 2746#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2745#L24-3 assume !!(main_~i~0#1 < 1024);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; 2744#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2743#L24-3 assume !!(main_~i~0#1 < 1024);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; 2742#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2741#L24-3 assume !!(main_~i~0#1 < 1024);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; 2740#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2739#L24-3 assume !!(main_~i~0#1 < 1024);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; 2738#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2737#L24-3 assume !!(main_~i~0#1 < 1024);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; 2736#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2735#L24-3 assume !!(main_~i~0#1 < 1024);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; 2734#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2733#L24-3 assume !!(main_~i~0#1 < 1024);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; 2732#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2731#L24-3 assume !!(main_~i~0#1 < 1024);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; 2730#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2729#L24-3 assume !!(main_~i~0#1 < 1024);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; 2728#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2727#L24-3 assume !!(main_~i~0#1 < 1024);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; 2726#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2725#L24-3 assume !!(main_~i~0#1 < 1024);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; 2724#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2723#L24-3 assume !(main_~i~0#1 < 1024); 2722#L24-4 main_~i~0#1 := 0; 2719#L28-4 [2023-11-06 22:54:33,666 INFO L750 eck$LassoCheckResult]: Loop: 2719#L28-4 call main_#t~mem4#1 := read~int(main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4); 2714#L28-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1; 2715#L29 assume !(main_~i~0#1 >= 1023); 2718#L28-3 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2719#L28-4 [2023-11-06 22:54:33,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:33,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1165371207, now seen corresponding path program 6 times [2023-11-06 22:54:33,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:33,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74097181] [2023-11-06 22:54:33,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:33,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:41,358 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 22:54:41,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:41,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74097181] [2023-11-06 22:54:41,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74097181] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:41,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853474926] [2023-11-06 22:54:41,359 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-06 22:54:41,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:41,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:41,364 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:41,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c11693-580b-4a66-99b7-6082c97701f5/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process