./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-examples/standard_vararg_ground.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a 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_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-examples/standard_vararg_ground.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 28ac72543f751666908cbd68a77fa11ffe4dd886016c3996df45b97bb42d5078 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:47,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:47,996 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 21:59:48,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:48,002 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:48,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:48,027 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:48,028 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:48,028 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:48,029 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:48,033 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:48,033 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:48,034 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:48,034 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 21:59:48,035 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 21:59:48,035 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 21:59:48,036 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 21:59:48,036 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 21:59:48,037 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 21:59:48,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:48,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 21:59:48,041 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:48,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:48,044 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:48,045 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:48,045 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 21:59:48,045 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 21:59:48,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 21:59:48,048 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:48,049 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:48,049 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:48,051 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:48,051 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 21:59:48,051 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:48,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:48,053 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:48,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:48,054 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:48,055 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 21:59:48,055 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_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28ac72543f751666908cbd68a77fa11ffe4dd886016c3996df45b97bb42d5078 [2024-10-31 21:59:48,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:48,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:48,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:48,418 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:48,419 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:48,420 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/array-examples/standard_vararg_ground.i Unable to find full path for "g++" [2024-10-31 21:59:50,558 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:50,860 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:50,861 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/sv-benchmarks/c/array-examples/standard_vararg_ground.i [2024-10-31 21:59:50,869 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/data/480707c39/98dc9cc6b3cb40cd81f94a33d12e10b9/FLAGafeddc764 [2024-10-31 21:59:50,884 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/data/480707c39/98dc9cc6b3cb40cd81f94a33d12e10b9 [2024-10-31 21:59:50,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:50,888 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:50,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:50,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:50,897 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:50,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:50,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58576c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50, skipping insertion in model container [2024-10-31 21:59:50,903 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:50,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:51,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:51,156 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:51,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:51,189 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:51,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:51 WrapperNode [2024-10-31 21:59:51,190 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:51,191 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:51,191 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:51,191 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:51,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:51" (1/1) ... [2024-10-31 21:59:51,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:51" (1/1) ... [2024-10-31 21:59:51,225 INFO L138 Inliner]: procedures = 16, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2024-10-31 21:59:51,225 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:51,226 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:51,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:51,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:51,238 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:51" (1/1) ... [2024-10-31 21:59:51,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:51" (1/1) ... [2024-10-31 21:59:51,240 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:51" (1/1) ... [2024-10-31 21:59:51,254 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-10-31 21:59:51,255 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:51" (1/1) ... [2024-10-31 21:59:51,255 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:51" (1/1) ... [2024-10-31 21:59:51,261 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:51" (1/1) ... [2024-10-31 21:59:51,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:51" (1/1) ... [2024-10-31 21:59:51,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:51" (1/1) ... [2024-10-31 21:59:51,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:51" (1/1) ... [2024-10-31 21:59:51,275 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:51,276 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:51,277 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:51,277 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:51,278 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:51" (1/1) ... [2024-10-31 21:59:51,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:51,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:51,319 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:51,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:59:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 21:59:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 21:59:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 21:59:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 21:59:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:51,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 21:59:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 21:59:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 21:59:51,433 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:51,435 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:51,594 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-10-31 21:59:51,595 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:51,617 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:51,618 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 21:59:51,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:51 BoogieIcfgContainer [2024-10-31 21:59:51,618 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:51,620 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 21:59:51,622 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 21:59:51,631 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 21:59:51,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:59:51,632 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 09:59:50" (1/3) ... [2024-10-31 21:59:51,633 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e22034c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 09:59:51, skipping insertion in model container [2024-10-31 21:59:51,633 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:59:51,640 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:51" (2/3) ... [2024-10-31 21:59:51,640 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e22034c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 09:59:51, skipping insertion in model container [2024-10-31 21:59:51,640 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:59:51,641 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:51" (3/3) ... [2024-10-31 21:59:51,642 INFO L332 chiAutomizerObserver]: Analyzing ICFG standard_vararg_ground.i [2024-10-31 21:59:51,754 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 21:59:51,755 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 21:59:51,757 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 21:59:51,757 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 21:59:51,757 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 21:59:51,758 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 21:59:51,758 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 21:59:51,758 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 21:59:51,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:51,790 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2024-10-31 21:59:51,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:59:51,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:59:51,801 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 21:59:51,801 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 21:59:51,801 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 21:59:51,802 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:51,805 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2024-10-31 21:59:51,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:59:51,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:59:51,806 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 21:59:51,806 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 21:59:51,816 INFO L745 eck$LassoCheckResult]: Stem: 17#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(25, 2); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_~i~0#1, main_#t~mem3#1, main_#t~post4#1, main_#t~mem5#1, main_#t~post6#1, main_~#aa~0#1.base, main_~#aa~0#1.offset, main_~a~0#1, main_~x~0#1;call main_~#aa~0#1.base, main_~#aa~0#1.offset := #Ultimate.allocOnStack(400000);main_~a~0#1 := 0;main_~i~0#1 := 0; 14#L20-3true [2024-10-31 21:59:51,817 INFO L747 eck$LassoCheckResult]: Loop: 14#L20-3true assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 15#L20-2true main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 14#L20-3true [2024-10-31 21:59:51,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:51,830 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 21:59:51,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:51,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63629250] [2024-10-31 21:59:51,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:51,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:51,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:52,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:52,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:52,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2024-10-31 21:59:52,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:52,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726577704] [2024-10-31 21:59:52,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:52,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:52,067 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:52,080 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:52,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:52,084 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2024-10-31 21:59:52,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:52,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153866023] [2024-10-31 21:59:52,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:52,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:52,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:52,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:52,779 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:59:52,779 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:59:52,780 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:59:52,780 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:59:52,780 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:59:52,780 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:52,780 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:59:52,781 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:59:52,781 INFO L132 ssoRankerPreferences]: Filename of dumped script: standard_vararg_ground.i_Iteration1_Lasso [2024-10-31 21:59:52,782 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:59:52,783 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:59:52,803 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:52,836 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:52,840 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:52,847 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:52,850 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:52,854 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:52,857 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:52,862 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:52,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:52,869 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:53,097 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:53,392 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:59:53,397 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:59:53,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:53,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:53,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:53,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 21:59:53,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:59:53,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:53,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:53,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:59:53,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:53,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:59:53,423 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:59:53,429 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:59:53,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 21:59:53,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:53,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:53,455 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:53,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 21:59:53,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:59:53,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:53,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:53,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:59:53,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:53,482 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:59:53,482 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:59:53,489 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:59:53,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 21:59:53,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:53,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:53,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:53,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 21:59:53,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:59:53,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:53,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:59:53,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:53,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:59:53,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:53,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:59:53,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:59:53,537 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:59:53,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 21:59:53,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:53,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:53,560 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:53,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 21:59:53,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:59:53,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:53,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:59:53,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:53,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:59:53,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:53,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:59:53,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:59:53,588 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:59:53,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 21:59:53,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:53,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:53,616 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:53,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 21:59:53,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:59:53,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:53,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:59:53,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:53,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:59:53,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:53,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:59:53,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:59:53,639 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:59:53,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 21:59:53,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:53,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:53,661 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:53,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 21:59:53,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:59:53,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:53,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:59:53,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:53,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:59:53,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:53,680 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:59:53,680 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:59:53,687 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:59:53,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 21:59:53,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:53,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:53,709 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:53,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 21:59:53,711 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:59:53,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:53,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:59:53,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:53,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:59:53,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:53,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:59:53,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:59:53,728 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:59:53,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-31 21:59:53,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:53,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:53,750 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:53,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 21:59:53,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:59:53,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:53,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:53,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:59:53,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:53,772 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:59:53,773 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:59:53,779 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:59:53,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 21:59:53,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:53,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:53,800 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:53,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 21:59:53,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:59:53,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:53,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:59:53,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:53,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:59:53,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:53,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:59:53,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:59:53,827 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:59:53,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 21:59:53,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:53,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:53,859 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:53,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 21:59:53,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:59:53,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:53,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:59:53,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:53,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:59:53,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:53,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:59:53,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:59:53,887 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:59:53,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-31 21:59:53,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:53,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:53,911 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:53,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 21:59:53,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:59:53,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:53,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:53,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:59:53,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:53,950 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:59:53,950 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:59:53,968 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:59:54,005 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2024-10-31 21:59:54,005 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 5 variables to zero. [2024-10-31 21:59:54,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:54,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:54,022 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:54,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 21:59:54,025 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:59:54,045 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-10-31 21:59:54,045 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:59:54,046 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 199999 Supporting invariants [] [2024-10-31 21:59:54,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:54,086 INFO L156 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2024-10-31 21:59:54,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 21:59:54,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:54,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:59:54,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:54,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:54,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:54,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:54,267 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 21:59:54,269 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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) [2024-10-31 21:59:54,329 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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 36 states and 51 transitions. Complement of second has 6 states. [2024-10-31 21:59:54,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 21:59:54,337 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) [2024-10-31 21:59:54,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2024-10-31 21:59:54,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 2 letters. [2024-10-31 21:59:54,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:59:54,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-31 21:59:54,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:59:54,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-31 21:59:54,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:59:54,343 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 51 transitions. [2024-10-31 21:59:54,346 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2024-10-31 21:59:54,352 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 16 states and 22 transitions. [2024-10-31 21:59:54,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-31 21:59:54,354 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-10-31 21:59:54,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2024-10-31 21:59:54,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 21:59:54,355 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2024-10-31 21:59:54,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2024-10-31 21:59:54,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-10-31 21:59:54,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:54,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2024-10-31 21:59:54,388 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2024-10-31 21:59:54,388 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2024-10-31 21:59:54,388 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 21:59:54,389 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2024-10-31 21:59:54,389 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2024-10-31 21:59:54,390 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:59:54,390 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:59:54,390 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 21:59:54,390 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 21:59:54,391 INFO L745 eck$LassoCheckResult]: Stem: 122#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(25, 2); 113#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_~i~0#1, main_#t~mem3#1, main_#t~post4#1, main_#t~mem5#1, main_#t~post6#1, main_~#aa~0#1.base, main_~#aa~0#1.offset, main_~a~0#1, main_~x~0#1;call main_~#aa~0#1.base, main_~#aa~0#1.offset := #Ultimate.allocOnStack(400000);main_~a~0#1 := 0;main_~i~0#1 := 0; 114#L20-3 assume !(main_~i~0#1 < 100000); 115#L20-4 havoc main_~i~0#1; 109#L25-3 [2024-10-31 21:59:54,391 INFO L747 eck$LassoCheckResult]: Loop: 109#L25-3 call main_#t~mem3#1 := read~int#1(main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~a~0#1, 4); 110#L25-1 assume !!(main_#t~mem3#1 >= 0);havoc main_#t~mem3#1;main_#t~post4#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 109#L25-3 [2024-10-31 21:59:54,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:54,391 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2024-10-31 21:59:54,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:54,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352474342] [2024-10-31 21:59:54,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:54,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:54,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:54,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:54,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352474342] [2024-10-31 21:59:54,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352474342] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:54,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:54,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:54,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099361528] [2024-10-31 21:59:54,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:54,513 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 21:59:54,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:54,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1638, now seen corresponding path program 1 times [2024-10-31 21:59:54,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:54,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493136545] [2024-10-31 21:59:54,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:54,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:54,523 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:54,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:54,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:54,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:54,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:54,590 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 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) [2024-10-31 21:59:54,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:54,606 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2024-10-31 21:59:54,606 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 18 transitions. [2024-10-31 21:59:54,607 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-31 21:59:54,607 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 16 transitions. [2024-10-31 21:59:54,607 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-31 21:59:54,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-10-31 21:59:54,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2024-10-31 21:59:54,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 21:59:54,608 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-10-31 21:59:54,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2024-10-31 21:59:54,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2024-10-31 21:59:54,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:54,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2024-10-31 21:59:54,610 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2024-10-31 21:59:54,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:54,611 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2024-10-31 21:59:54,611 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 21:59:54,612 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 15 transitions. [2024-10-31 21:59:54,612 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-31 21:59:54,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:59:54,613 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:59:54,613 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-31 21:59:54,613 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 21:59:54,613 INFO L745 eck$LassoCheckResult]: Stem: 155#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(25, 2); 156#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_~i~0#1, main_#t~mem3#1, main_#t~post4#1, main_#t~mem5#1, main_#t~post6#1, main_~#aa~0#1.base, main_~#aa~0#1.offset, main_~a~0#1, main_~x~0#1;call main_~#aa~0#1.base, main_~#aa~0#1.offset := #Ultimate.allocOnStack(400000);main_~a~0#1 := 0;main_~i~0#1 := 0; 148#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 149#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 150#L20-3 assume !(main_~i~0#1 < 100000); 151#L20-4 havoc main_~i~0#1; 152#L25-3 [2024-10-31 21:59:54,613 INFO L747 eck$LassoCheckResult]: Loop: 152#L25-3 call main_#t~mem3#1 := read~int#1(main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~a~0#1, 4); 153#L25-1 assume !!(main_#t~mem3#1 >= 0);havoc main_#t~mem3#1;main_#t~post4#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 152#L25-3 [2024-10-31 21:59:54,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:54,614 INFO L85 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2024-10-31 21:59:54,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:54,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159435686] [2024-10-31 21:59:54,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:54,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:54,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:54,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:54,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159435686] [2024-10-31 21:59:54,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159435686] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:54,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326434813] [2024-10-31 21:59:54,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:54,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:54,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:54,704 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:54,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-31 21:59:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:54,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 21:59:54,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:54,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:54,780 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:54,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:54,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326434813] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:54,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:54,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-31 21:59:54,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187290366] [2024-10-31 21:59:54,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:54,813 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 21:59:54,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:54,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1638, now seen corresponding path program 2 times [2024-10-31 21:59:54,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:54,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345687926] [2024-10-31 21:59:54,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:54,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:54,819 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:54,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:54,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:54,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 21:59:54,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:54,879 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. cyclomatic complexity: 5 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) [2024-10-31 21:59:54,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:54,912 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2024-10-31 21:59:54,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 21 transitions. [2024-10-31 21:59:54,913 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-31 21:59:54,914 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 21 transitions. [2024-10-31 21:59:54,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-31 21:59:54,914 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-10-31 21:59:54,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 21 transitions. [2024-10-31 21:59:54,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 21:59:54,915 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-10-31 21:59:54,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 21 transitions. [2024-10-31 21:59:54,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-10-31 21:59:54,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.105263157894737) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-10-31 21:59:54,917 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-10-31 21:59:54,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:59:54,919 INFO L425 stractBuchiCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-10-31 21:59:54,919 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 21:59:54,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 21 transitions. [2024-10-31 21:59:54,920 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-31 21:59:54,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:59:54,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:59:54,920 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2024-10-31 21:59:54,920 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 21:59:54,921 INFO L745 eck$LassoCheckResult]: Stem: 227#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(25, 2); 228#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_~i~0#1, main_#t~mem3#1, main_#t~post4#1, main_#t~mem5#1, main_#t~post6#1, main_~#aa~0#1.base, main_~#aa~0#1.offset, main_~a~0#1, main_~x~0#1;call main_~#aa~0#1.base, main_~#aa~0#1.offset := #Ultimate.allocOnStack(400000);main_~a~0#1 := 0;main_~i~0#1 := 0; 220#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 221#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 222#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 223#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 235#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 234#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 233#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 232#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 231#L20-3 assume !(main_~i~0#1 < 100000); 230#L20-4 havoc main_~i~0#1; 224#L25-3 [2024-10-31 21:59:54,921 INFO L747 eck$LassoCheckResult]: Loop: 224#L25-3 call main_#t~mem3#1 := read~int#1(main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~a~0#1, 4); 225#L25-1 assume !!(main_#t~mem3#1 >= 0);havoc main_#t~mem3#1;main_#t~post4#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 224#L25-3 [2024-10-31 21:59:54,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:54,922 INFO L85 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 2 times [2024-10-31 21:59:54,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:54,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270235819] [2024-10-31 21:59:54,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:54,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:55,094 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:55,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:55,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270235819] [2024-10-31 21:59:55,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270235819] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:55,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945917615] [2024-10-31 21:59:55,095 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 21:59:55,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:55,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:55,097 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:55,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-31 21:59:55,181 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 21:59:55,181 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:59:55,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:59:55,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:55,221 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:55,221 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:55,316 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:55,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945917615] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:55,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:55,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-10-31 21:59:55,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613946595] [2024-10-31 21:59:55,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:55,318 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 21:59:55,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:55,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1638, now seen corresponding path program 3 times [2024-10-31 21:59:55,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:55,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402097499] [2024-10-31 21:59:55,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:55,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:55,327 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:55,335 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:55,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:55,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 21:59:55,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-10-31 21:59:55,388 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. cyclomatic complexity: 5 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) [2024-10-31 21:59:55,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:55,454 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2024-10-31 21:59:55,454 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 33 transitions. [2024-10-31 21:59:55,455 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-31 21:59:55,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 33 transitions. [2024-10-31 21:59:55,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-31 21:59:55,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-10-31 21:59:55,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 33 transitions. [2024-10-31 21:59:55,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 21:59:55,456 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 33 transitions. [2024-10-31 21:59:55,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 33 transitions. [2024-10-31 21:59:55,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-10-31 21:59:55,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.064516129032258) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:55,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2024-10-31 21:59:55,459 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 33 transitions. [2024-10-31 21:59:55,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 21:59:55,462 INFO L425 stractBuchiCegarLoop]: Abstraction has 31 states and 33 transitions. [2024-10-31 21:59:55,463 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 21:59:55,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 33 transitions. [2024-10-31 21:59:55,479 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-31 21:59:55,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:59:55,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:59:55,480 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1] [2024-10-31 21:59:55,480 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 21:59:55,481 INFO L745 eck$LassoCheckResult]: Stem: 361#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(25, 2); 362#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_~i~0#1, main_#t~mem3#1, main_#t~post4#1, main_#t~mem5#1, main_#t~post6#1, main_~#aa~0#1.base, main_~#aa~0#1.offset, main_~a~0#1, main_~x~0#1;call main_~#aa~0#1.base, main_~#aa~0#1.offset := #Ultimate.allocOnStack(400000);main_~a~0#1 := 0;main_~i~0#1 := 0; 352#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 353#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 354#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 355#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 356#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 379#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 378#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 377#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 376#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 375#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 374#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 373#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 372#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 371#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 370#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 369#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 368#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 367#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 366#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 365#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 364#L20-3 assume !(main_~i~0#1 < 100000); 363#L20-4 havoc main_~i~0#1; 357#L25-3 [2024-10-31 21:59:55,481 INFO L747 eck$LassoCheckResult]: Loop: 357#L25-3 call main_#t~mem3#1 := read~int#1(main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~a~0#1, 4); 358#L25-1 assume !!(main_#t~mem3#1 >= 0);havoc main_#t~mem3#1;main_#t~post4#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 357#L25-3 [2024-10-31 21:59:55,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:55,481 INFO L85 PathProgramCache]: Analyzing trace with hash 2127272351, now seen corresponding path program 3 times [2024-10-31 21:59:55,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:55,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332066684] [2024-10-31 21:59:55,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:55,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:55,862 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:55,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:55,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332066684] [2024-10-31 21:59:55,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332066684] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:55,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962610270] [2024-10-31 21:59:55,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 21:59:55,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:55,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:55,865 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:55,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-31 21:59:56,008 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-31 21:59:56,008 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:59:56,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 21:59:56,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:56,085 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:56,085 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:56,396 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:56,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962610270] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:56,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:56,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-10-31 21:59:56,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371049489] [2024-10-31 21:59:56,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:56,397 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 21:59:56,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:56,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1638, now seen corresponding path program 4 times [2024-10-31 21:59:56,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:56,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315121998] [2024-10-31 21:59:56,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:56,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:56,407 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:56,410 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:56,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:56,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-31 21:59:56,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-10-31 21:59:56,465 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. cyclomatic complexity: 5 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) [2024-10-31 21:59:56,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:56,583 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2024-10-31 21:59:56,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 57 transitions. [2024-10-31 21:59:56,584 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-31 21:59:56,585 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 55 states and 57 transitions. [2024-10-31 21:59:56,585 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-31 21:59:56,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-10-31 21:59:56,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 57 transitions. [2024-10-31 21:59:56,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 21:59:56,586 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 57 transitions. [2024-10-31 21:59:56,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 57 transitions. [2024-10-31 21:59:56,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-10-31 21:59:56,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.0363636363636364) internal successors, (57), 54 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:56,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2024-10-31 21:59:56,590 INFO L240 hiAutomatonCegarLoop]: Abstraction has 55 states and 57 transitions. [2024-10-31 21:59:56,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-31 21:59:56,590 INFO L425 stractBuchiCegarLoop]: Abstraction has 55 states and 57 transitions. [2024-10-31 21:59:56,591 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 21:59:56,591 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 57 transitions. [2024-10-31 21:59:56,592 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-31 21:59:56,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:59:56,592 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:59:56,593 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [22, 22, 1, 1, 1, 1] [2024-10-31 21:59:56,593 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 21:59:56,593 INFO L745 eck$LassoCheckResult]: Stem: 612#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(25, 2); 613#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_~i~0#1, main_#t~mem3#1, main_#t~post4#1, main_#t~mem5#1, main_#t~post6#1, main_~#aa~0#1.base, main_~#aa~0#1.offset, main_~a~0#1, main_~x~0#1;call main_~#aa~0#1.base, main_~#aa~0#1.offset := #Ultimate.allocOnStack(400000);main_~a~0#1 := 0;main_~i~0#1 := 0; 604#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 605#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 606#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 607#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 608#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 655#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 654#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 653#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 652#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 651#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 650#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 649#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 648#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 647#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 646#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 645#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 644#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 643#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 642#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 641#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 640#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 639#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 638#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 637#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 636#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 635#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 634#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 633#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 632#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 631#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 630#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 629#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 628#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 627#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 626#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 625#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 624#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 623#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 622#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 621#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 620#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 619#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 618#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 617#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 616#L20-3 assume !(main_~i~0#1 < 100000); 615#L20-4 havoc main_~i~0#1; 609#L25-3 [2024-10-31 21:59:56,593 INFO L747 eck$LassoCheckResult]: Loop: 609#L25-3 call main_#t~mem3#1 := read~int#1(main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~a~0#1, 4); 610#L25-1 assume !!(main_#t~mem3#1 >= 0);havoc main_#t~mem3#1;main_#t~post4#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 609#L25-3 [2024-10-31 21:59:56,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:56,594 INFO L85 PathProgramCache]: Analyzing trace with hash 828161207, now seen corresponding path program 4 times [2024-10-31 21:59:56,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:56,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296891598] [2024-10-31 21:59:56,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:56,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:57,545 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:57,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:57,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296891598] [2024-10-31 21:59:57,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296891598] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:57,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031657266] [2024-10-31 21:59:57,547 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-31 21:59:57,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:57,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:57,550 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:57,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-31 21:59:57,674 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-31 21:59:57,674 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:59:57,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-31 21:59:57,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:57,820 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:57,821 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:59,000 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:59,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031657266] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:59,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:59,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2024-10-31 21:59:59,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22550584] [2024-10-31 21:59:59,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:59,002 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 21:59:59,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:59,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1638, now seen corresponding path program 5 times [2024-10-31 21:59:59,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:59,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571228547] [2024-10-31 21:59:59,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:59,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:59,016 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:59,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:59,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:59,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-10-31 21:59:59,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2024-10-31 21:59:59,131 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. cyclomatic complexity: 5 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) [2024-10-31 21:59:59,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:59,413 INFO L93 Difference]: Finished difference Result 103 states and 105 transitions. [2024-10-31 21:59:59,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 105 transitions. [2024-10-31 21:59:59,415 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-31 21:59:59,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 103 states and 105 transitions. [2024-10-31 21:59:59,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-31 21:59:59,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-10-31 21:59:59,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 105 transitions. [2024-10-31 21:59:59,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 21:59:59,417 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 105 transitions. [2024-10-31 21:59:59,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 105 transitions. [2024-10-31 21:59:59,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-10-31 21:59:59,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 103 states have (on average 1.0194174757281553) internal successors, (105), 102 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:59,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 105 transitions. [2024-10-31 21:59:59,423 INFO L240 hiAutomatonCegarLoop]: Abstraction has 103 states and 105 transitions. [2024-10-31 21:59:59,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-31 21:59:59,424 INFO L425 stractBuchiCegarLoop]: Abstraction has 103 states and 105 transitions. [2024-10-31 21:59:59,425 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 21:59:59,425 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 103 states and 105 transitions. [2024-10-31 21:59:59,426 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-31 21:59:59,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:59:59,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:59:59,429 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [46, 46, 1, 1, 1, 1] [2024-10-31 21:59:59,429 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 21:59:59,429 INFO L745 eck$LassoCheckResult]: Stem: 1105#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(25, 2); 1106#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_~i~0#1, main_#t~mem3#1, main_#t~post4#1, main_#t~mem5#1, main_#t~post6#1, main_~#aa~0#1.base, main_~#aa~0#1.offset, main_~a~0#1, main_~x~0#1;call main_~#aa~0#1.base, main_~#aa~0#1.offset := #Ultimate.allocOnStack(400000);main_~a~0#1 := 0;main_~i~0#1 := 0; 1096#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1097#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1098#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1099#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1100#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1195#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1194#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1193#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1192#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1191#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1190#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1189#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1188#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1187#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1186#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1185#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1184#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1183#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1182#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1181#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1180#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1179#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1178#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1177#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1176#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1175#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1174#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1173#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1172#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1171#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1170#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1169#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1168#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1167#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1166#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1165#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1164#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1163#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1162#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1161#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1160#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1159#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1158#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1157#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1156#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1155#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1154#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1153#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1152#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1151#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1150#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1149#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1148#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1147#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1146#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1145#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1144#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1143#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1142#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1141#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1140#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1139#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1138#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1137#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1136#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1135#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1134#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1133#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1132#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1131#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1130#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1129#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1128#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1127#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1126#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1125#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1124#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1123#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1122#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1121#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1120#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1119#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1118#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1117#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1116#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1115#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1114#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1113#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1112#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1111#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1110#L20-3 assume !!(main_~i~0#1 < 100000);havoc main_#t~nondet1#1;call write~int#1(main_#t~nondet1#1, main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet1#1; 1109#L20-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1108#L20-3 assume !(main_~i~0#1 < 100000); 1107#L20-4 havoc main_~i~0#1; 1101#L25-3 [2024-10-31 21:59:59,430 INFO L747 eck$LassoCheckResult]: Loop: 1101#L25-3 call main_#t~mem3#1 := read~int#1(main_~#aa~0#1.base, main_~#aa~0#1.offset + 4 * main_~a~0#1, 4); 1102#L25-1 assume !!(main_#t~mem3#1 >= 0);havoc main_#t~mem3#1;main_#t~post4#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1101#L25-3 [2024-10-31 21:59:59,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:59,430 INFO L85 PathProgramCache]: Analyzing trace with hash 830581479, now seen corresponding path program 5 times [2024-10-31 21:59:59,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:59,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636312734] [2024-10-31 21:59:59,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:59,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:02,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:02,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636312734] [2024-10-31 22:00:02,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636312734] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:02,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411593951] [2024-10-31 22:00:02,311 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-31 22:00:02,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:02,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:02,313 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:02,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494f7151-0f63-4302-b3e0-e9e8a350bdc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process