./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 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_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 302c18c494f9017ecbb07643194b1d54ba0a6bba467355d4f775638dea57e539 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:48:58,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:48:58,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:48:58,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:48:58,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:48:58,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:48:58,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:48:58,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:48:58,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:48:58,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:48:58,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:48:58,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:48:58,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:48:58,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:48:58,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:48:58,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:48:58,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:48:58,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:48:58,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:48:58,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:48:58,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:48:58,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:48:58,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:48:58,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:48:58,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:48:58,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:48:58,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:48:58,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:48:58,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:48:58,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:48:58,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:48:58,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:48:58,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:48:58,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:48:58,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:48:58,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:48:58,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:48:58,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:48:58,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:48:58,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:48:58,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:48:58,933 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-21 16:48:58,971 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:48:58,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:48:58,972 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:48:58,972 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:48:58,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:48:58,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:48:58,974 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:48:58,974 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 16:48:58,975 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 16:48:58,975 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 16:48:58,976 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 16:48:58,976 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 16:48:58,976 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 16:48:58,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:48:58,977 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:48:58,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:48:58,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:48:58,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 16:48:58,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 16:48:58,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 16:48:58,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:48:58,979 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 16:48:58,979 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:48:58,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 16:48:58,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:48:58,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:48:58,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:48:58,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:48:58,982 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 16:48:58,982 INFO L138 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_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 302c18c494f9017ecbb07643194b1d54ba0a6bba467355d4f775638dea57e539 [2022-11-21 16:48:59,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:48:59,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:48:59,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:48:59,294 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:48:59,295 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:48:59,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c [2022-11-21 16:49:02,377 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:49:02,610 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:49:02,610 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c [2022-11-21 16:49:02,617 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/data/050ea9ae3/a67ace4e025b4c038d1da626c29031ca/FLAGba7845978 [2022-11-21 16:49:02,634 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/data/050ea9ae3/a67ace4e025b4c038d1da626c29031ca [2022-11-21 16:49:02,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:49:02,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:49:02,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:49:02,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:49:02,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:49:02,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:49:02" (1/1) ... [2022-11-21 16:49:02,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1850d186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:02, skipping insertion in model container [2022-11-21 16:49:02,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:49:02" (1/1) ... [2022-11-21 16:49:02,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:49:02,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:49:02,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:49:02,843 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:49:02,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:49:02,887 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:49:02,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:02 WrapperNode [2022-11-21 16:49:02,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:49:02,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:49:02,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:49:02,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:49:02,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:02" (1/1) ... [2022-11-21 16:49:02,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:02" (1/1) ... [2022-11-21 16:49:02,927 INFO L138 Inliner]: procedures = 8, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2022-11-21 16:49:02,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:49:02,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:49:02,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:49:02,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:49:02,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:02" (1/1) ... [2022-11-21 16:49:02,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:02" (1/1) ... [2022-11-21 16:49:02,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:02" (1/1) ... [2022-11-21 16:49:02,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:02" (1/1) ... [2022-11-21 16:49:02,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:02" (1/1) ... [2022-11-21 16:49:02,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:02" (1/1) ... [2022-11-21 16:49:02,979 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:02" (1/1) ... [2022-11-21 16:49:02,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:02" (1/1) ... [2022-11-21 16:49:02,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:49:02,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:49:02,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:49:02,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:49:02,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:02" (1/1) ... [2022-11-21 16:49:02,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:49:03,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:03,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:03,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 16:49:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:49:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:49:03,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:49:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:49:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:49:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:49:03,158 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:49:03,161 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:49:03,327 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:49:03,332 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:49:03,333 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 16:49:03,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:49:03 BoogieIcfgContainer [2022-11-21 16:49:03,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:49:03,336 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 16:49:03,336 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 16:49:03,341 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 16:49:03,341 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:49:03,342 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 04:49:02" (1/3) ... [2022-11-21 16:49:03,343 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4394f5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 04:49:03, skipping insertion in model container [2022-11-21 16:49:03,343 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:49:03,343 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:02" (2/3) ... [2022-11-21 16:49:03,344 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4394f5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 04:49:03, skipping insertion in model container [2022-11-21 16:49:03,344 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:49:03,344 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:49:03" (3/3) ... [2022-11-21 16:49:03,346 INFO L332 chiAutomizerObserver]: Analyzing ICFG Arrays03-ValueRestictsIndex-2.c [2022-11-21 16:49:03,401 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 16:49:03,411 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 16:49:03,427 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 16:49:03,427 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 16:49:03,427 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 16:49:03,427 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 16:49:03,427 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 16:49:03,428 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 16:49:03,432 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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) [2022-11-21 16:49:03,450 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2022-11-21 16:49:03,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:49:03,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:49:03,468 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 16:49:03,496 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-21 16:49:03,496 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 16:49:03,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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) [2022-11-21 16:49:03,498 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2022-11-21 16:49:03,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:49:03,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:49:03,499 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 16:49:03,499 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-21 16:49:03,508 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 6#L15-3true [2022-11-21 16:49:03,508 INFO L750 eck$LassoCheckResult]: Loop: 6#L15-3true assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 12#L15-2true main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 6#L15-3true [2022-11-21 16:49:03,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:03,531 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-21 16:49:03,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:03,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856345032] [2022-11-21 16:49:03,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:03,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:03,642 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:49:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:03,671 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:49:03,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:03,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2022-11-21 16:49:03,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:03,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547302585] [2022-11-21 16:49:03,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:03,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:03,686 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:49:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:03,696 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:49:03,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:03,698 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-11-21 16:49:03,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:03,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111792364] [2022-11-21 16:49:03,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:03,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:03,722 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:49:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:03,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:49:03,972 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 16:49:03,972 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 16:49:03,973 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 16:49:03,973 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 16:49:03,973 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 16:49:03,973 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:49:03,973 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 16:49:03,973 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 16:49:03,974 INFO L133 ssoRankerPreferences]: Filename of dumped script: Arrays03-ValueRestictsIndex-2.c_Iteration1_Lasso [2022-11-21 16:49:03,974 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 16:49:03,974 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 16:49:03,995 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:49:04,007 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:49:04,010 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:49:04,015 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:49:04,018 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:49:04,021 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:49:04,025 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:49:04,170 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:49:04,176 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:49:04,184 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:49:04,196 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:49:04,199 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:49:04,415 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 16:49:04,419 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 16:49:04,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:49:04,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:04,425 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:04,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-21 16:49:04,432 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 [2022-11-21 16:49:04,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:49:04,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:49:04,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:49:04,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:49:04,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:49:04,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:49:04,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:49:04,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:49:04,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:49:04,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:49:04,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:04,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:04,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-21 16:49:04,461 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 [2022-11-21 16:49:04,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:49:04,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:49:04,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:49:04,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:49:04,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:49:04,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:49:04,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:49:04,511 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:49:04,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:49:04,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:49:04,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:04,526 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:04,541 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 [2022-11-21 16:49:04,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:49:04,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:49:04,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:49:04,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:49:04,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-21 16:49:04,558 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 16:49:04,558 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 16:49:04,570 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:49:04,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:49:04,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:49:04,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:04,581 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:04,590 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 [2022-11-21 16:49:04,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:49:04,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:49:04,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:49:04,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:49:04,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:49:04,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:49:04,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:49:04,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-21 16:49:04,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:49:04,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:49:04,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:49:04,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:04,630 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:04,634 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 [2022-11-21 16:49:04,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:49:04,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:49:04,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-21 16:49:04,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:49:04,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:49:04,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:49:04,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:49:04,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:49:04,659 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:49:04,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-21 16:49:04,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:49:04,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:04,672 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:04,680 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 [2022-11-21 16:49:04,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:49:04,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:49:04,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:49:04,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:49:04,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:49:04,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:49:04,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:49:04,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-21 16:49:04,711 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:49:04,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-21 16:49:04,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:49:04,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:04,717 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:04,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-21 16:49:04,724 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 [2022-11-21 16:49:04,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:49:04,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:49:04,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:49:04,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:49:04,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:49:04,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:49:04,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:49:04,747 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:49:04,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-21 16:49:04,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:49:04,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:04,754 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:04,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-21 16:49:04,760 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 [2022-11-21 16:49:04,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:49:04,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:49:04,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:49:04,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:49:04,777 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 16:49:04,777 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 16:49:04,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:49:04,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-21 16:49:04,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:49:04,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:04,807 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:04,825 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 [2022-11-21 16:49:04,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:49:04,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:49:04,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:49:04,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:49:04,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-21 16:49:04,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 16:49:04,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 16:49:04,855 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:49:04,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-21 16:49:04,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:49:04,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:04,866 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:04,882 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 [2022-11-21 16:49:04,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:49:04,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:49:04,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:49:04,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:49:04,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-21 16:49:04,899 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 16:49:04,900 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 16:49:04,911 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:49:04,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-21 16:49:04,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:49:04,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:04,921 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:04,925 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 [2022-11-21 16:49:04,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:49:04,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:49:04,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:49:04,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:49:04,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:49:04,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:49:04,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:49:04,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-21 16:49:04,963 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:49:04,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-21 16:49:04,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:49:04,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:04,973 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:04,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-21 16:49:04,977 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 [2022-11-21 16:49:04,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:49:04,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:49:04,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:49:04,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:49:04,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 16:49:04,997 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 16:49:05,011 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 16:49:05,028 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-21 16:49:05,029 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 5 variables to zero. [2022-11-21 16:49:05,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:49:05,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:05,051 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:05,073 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 16:49:05,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-21 16:49:05,091 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-21 16:49:05,091 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 16:49:05,092 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 2095 Supporting invariants [] [2022-11-21 16:49:05,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-11-21 16:49:05,104 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2022-11-21 16:49:05,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:05,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:49:05,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:49:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:05,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:49:05,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:49:05,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:05,278 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 [2022-11-21 16:49:05,280 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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) [2022-11-21 16:49:05,339 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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 30 states and 48 transitions. Complement of second has 7 states. [2022-11-21 16:49:05,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-21 16:49:05,349 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) [2022-11-21 16:49:05,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2022-11-21 16:49:05,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-21 16:49:05,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:49:05,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-21 16:49:05,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:49:05,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-21 16:49:05,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:49:05,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 48 transitions. [2022-11-21 16:49:05,356 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:05,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 9 states and 12 transitions. [2022-11-21 16:49:05,361 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-11-21 16:49:05,361 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-21 16:49:05,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2022-11-21 16:49:05,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:49:05,362 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-11-21 16:49:05,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2022-11-21 16:49:05,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-21 16:49:05,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:49:05,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2022-11-21 16:49:05,406 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-11-21 16:49:05,406 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-11-21 16:49:05,406 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 16:49:05,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2022-11-21 16:49:05,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-21 16:49:05,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:05,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:49:05,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:49:05,410 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-21 16:49:05,411 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-21 16:49:05,411 INFO L748 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 87#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 88#L15-3 assume !(main_~i~0#1 < 1048); 84#L15-4 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 85#L20 assume !main_#t~short5#1; 91#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 92#L22-2 [2022-11-21 16:49:05,411 INFO L750 eck$LassoCheckResult]: Loop: 92#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 92#L22-2 [2022-11-21 16:49:05,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:05,418 INFO L85 PathProgramCache]: Analyzing trace with hash 889607089, now seen corresponding path program 1 times [2022-11-21 16:49:05,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:05,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099866375] [2022-11-21 16:49:05,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:05,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:05,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:05,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:05,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099866375] [2022-11-21 16:49:05,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099866375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:49:05,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:49:05,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:49:05,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19039041] [2022-11-21 16:49:05,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:49:05,548 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 16:49:05,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:05,551 INFO L85 PathProgramCache]: Analyzing trace with hash 67, now seen corresponding path program 1 times [2022-11-21 16:49:05,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:05,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745263881] [2022-11-21 16:49:05,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:05,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:05,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:49:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:05,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:49:05,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:05,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:49:05,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:49:05,595 INFO L87 Difference]: Start difference. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:49:05,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:49:05,611 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2022-11-21 16:49:05,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2022-11-21 16:49:05,614 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:05,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 12 transitions. [2022-11-21 16:49:05,615 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-21 16:49:05,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-21 16:49:05,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2022-11-21 16:49:05,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:49:05,615 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-21 16:49:05,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2022-11-21 16:49:05,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2022-11-21 16:49:05,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:49:05,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2022-11-21 16:49:05,618 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2022-11-21 16:49:05,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:49:05,619 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2022-11-21 16:49:05,619 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-21 16:49:05,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2022-11-21 16:49:05,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:05,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:49:05,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:49:05,622 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:49:05,622 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-21 16:49:05,622 INFO L748 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 112#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 113#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 114#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 115#L15-3 assume !(main_~i~0#1 < 1048); 109#L15-4 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 110#L20 assume !main_#t~short5#1; 116#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 117#L22-2 [2022-11-21 16:49:05,623 INFO L750 eck$LassoCheckResult]: Loop: 117#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 117#L22-2 [2022-11-21 16:49:05,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:05,625 INFO L85 PathProgramCache]: Analyzing trace with hash 265183027, now seen corresponding path program 1 times [2022-11-21 16:49:05,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:05,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5998399] [2022-11-21 16:49:05,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:05,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:05,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:05,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:05,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5998399] [2022-11-21 16:49:05,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5998399] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:49:05,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351339625] [2022-11-21 16:49:05,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:05,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:49:05,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:05,751 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:49:05,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-21 16:49:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:05,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:49:05,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:49:05,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 16:49:05,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:49:05,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351339625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:49:05,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:49:05,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-21 16:49:05,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045700427] [2022-11-21 16:49:05,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:49:05,821 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 16:49:05,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:05,821 INFO L85 PathProgramCache]: Analyzing trace with hash 67, now seen corresponding path program 2 times [2022-11-21 16:49:05,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:05,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930305238] [2022-11-21 16:49:05,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:05,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:05,825 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:49:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:05,828 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:49:05,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:05,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:49:05,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:49:05,842 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-21 16:49:05,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:49:05,850 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2022-11-21 16:49:05,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2022-11-21 16:49:05,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:05,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 10 transitions. [2022-11-21 16:49:05,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-21 16:49:05,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-21 16:49:05,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2022-11-21 16:49:05,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:49:05,852 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-11-21 16:49:05,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2022-11-21 16:49:05,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-21 16:49:05,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 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) [2022-11-21 16:49:05,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2022-11-21 16:49:05,853 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-11-21 16:49:05,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:49:05,854 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-11-21 16:49:05,855 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-21 16:49:05,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2022-11-21 16:49:05,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:05,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:49:05,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:49:05,856 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:49:05,856 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-21 16:49:05,856 INFO L748 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 160#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 161#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 162#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 163#L15-3 assume !(main_~i~0#1 < 1048); 157#L15-4 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 158#L20 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short5#1 := 42 == main_#t~mem4#1; 164#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 165#L22-2 [2022-11-21 16:49:05,856 INFO L750 eck$LassoCheckResult]: Loop: 165#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 165#L22-2 [2022-11-21 16:49:05,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:05,857 INFO L85 PathProgramCache]: Analyzing trace with hash 265182965, now seen corresponding path program 1 times [2022-11-21 16:49:05,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:05,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014900480] [2022-11-21 16:49:05,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:05,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:05,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:05,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:05,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014900480] [2022-11-21 16:49:05,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014900480] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:49:05,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820898522] [2022-11-21 16:49:05,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:05,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:49:05,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:05,931 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:49:05,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-21 16:49:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:05,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:49:05,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:49:06,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:06,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:49:06,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:06,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820898522] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:49:06,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:49:06,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-21 16:49:06,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747051945] [2022-11-21 16:49:06,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:49:06,027 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 16:49:06,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:06,028 INFO L85 PathProgramCache]: Analyzing trace with hash 67, now seen corresponding path program 3 times [2022-11-21 16:49:06,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:06,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32042967] [2022-11-21 16:49:06,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:06,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:06,031 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:49:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:06,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:49:06,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:06,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:49:06,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:49:06,048 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2022-11-21 16:49:06,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:49:06,071 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-11-21 16:49:06,071 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2022-11-21 16:49:06,072 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:06,072 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2022-11-21 16:49:06,072 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-21 16:49:06,072 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-21 16:49:06,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2022-11-21 16:49:06,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:49:06,073 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-21 16:49:06,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2022-11-21 16:49:06,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-21 16:49:06,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:49:06,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-21 16:49:06,075 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-21 16:49:06,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:49:06,076 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-21 16:49:06,076 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-21 16:49:06,076 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2022-11-21 16:49:06,077 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:06,077 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:49:06,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:49:06,077 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1, 1, 1] [2022-11-21 16:49:06,077 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-21 16:49:06,078 INFO L748 eck$LassoCheckResult]: Stem: 235#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 236#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 237#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 238#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 239#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 240#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 247#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 246#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 245#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 244#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 243#L15-3 assume !(main_~i~0#1 < 1048); 233#L15-4 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 234#L20 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short5#1 := 42 == main_#t~mem4#1; 241#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 242#L22-2 [2022-11-21 16:49:06,078 INFO L750 eck$LassoCheckResult]: Loop: 242#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 242#L22-2 [2022-11-21 16:49:06,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:06,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1745752453, now seen corresponding path program 2 times [2022-11-21 16:49:06,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:06,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452270980] [2022-11-21 16:49:06,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:06,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:06,189 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:06,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:06,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452270980] [2022-11-21 16:49:06,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452270980] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:49:06,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914713809] [2022-11-21 16:49:06,190 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:49:06,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:49:06,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:06,195 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:49:06,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-21 16:49:06,266 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:49:06,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:49:06,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:49:06,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:49:06,305 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:06,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:49:06,378 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:06,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914713809] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:49:06,378 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:49:06,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-21 16:49:06,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260197245] [2022-11-21 16:49:06,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:49:06,379 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 16:49:06,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:06,380 INFO L85 PathProgramCache]: Analyzing trace with hash 67, now seen corresponding path program 4 times [2022-11-21 16:49:06,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:06,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706221503] [2022-11-21 16:49:06,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:06,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:06,384 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:49:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:06,387 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:49:06,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:06,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:49:06,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:49:06,406 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 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) [2022-11-21 16:49:06,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:49:06,475 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-11-21 16:49:06,475 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 28 transitions. [2022-11-21 16:49:06,479 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:06,482 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 28 transitions. [2022-11-21 16:49:06,483 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-21 16:49:06,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-21 16:49:06,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 28 transitions. [2022-11-21 16:49:06,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:49:06,483 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-11-21 16:49:06,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 28 transitions. [2022-11-21 16:49:06,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-21 16:49:06,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.037037037037037) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:49:06,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-11-21 16:49:06,489 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-11-21 16:49:06,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:49:06,492 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-11-21 16:49:06,492 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-21 16:49:06,493 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 28 transitions. [2022-11-21 16:49:06,495 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:06,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:49:06,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:49:06,497 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1, 1, 1] [2022-11-21 16:49:06,497 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-21 16:49:06,497 INFO L748 eck$LassoCheckResult]: Stem: 371#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 372#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 373#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 374#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 375#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 376#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 379#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 395#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 394#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 393#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 392#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 391#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 390#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 389#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 388#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 387#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 386#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 385#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 384#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 383#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 382#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 381#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 380#L15-3 assume !(main_~i~0#1 < 1048); 369#L15-4 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 370#L20 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short5#1 := 42 == main_#t~mem4#1; 377#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 378#L22-2 [2022-11-21 16:49:06,497 INFO L750 eck$LassoCheckResult]: Loop: 378#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 378#L22-2 [2022-11-21 16:49:06,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:06,498 INFO L85 PathProgramCache]: Analyzing trace with hash -95700985, now seen corresponding path program 3 times [2022-11-21 16:49:06,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:06,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622183649] [2022-11-21 16:49:06,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:06,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:06,900 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:06,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:06,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622183649] [2022-11-21 16:49:06,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622183649] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:49:06,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68225607] [2022-11-21 16:49:06,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 16:49:06,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:49:06,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:06,907 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:49:06,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-21 16:49:07,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-21 16:49:07,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:49:07,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-21 16:49:07,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:49:07,115 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:07,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:49:07,406 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:07,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68225607] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:49:07,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:49:07,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-11-21 16:49:07,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179662652] [2022-11-21 16:49:07,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:49:07,407 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 16:49:07,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:07,407 INFO L85 PathProgramCache]: Analyzing trace with hash 67, now seen corresponding path program 5 times [2022-11-21 16:49:07,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:07,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11526442] [2022-11-21 16:49:07,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:07,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:07,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:49:07,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:07,413 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:49:07,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:07,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-21 16:49:07,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-11-21 16:49:07,431 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. cyclomatic complexity: 3 Second operand has 25 states, 25 states have (on average 2.04) internal successors, (51), 25 states have internal predecessors, (51), 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) [2022-11-21 16:49:07,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:49:07,535 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2022-11-21 16:49:07,535 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 52 transitions. [2022-11-21 16:49:07,538 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:07,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 51 states and 52 transitions. [2022-11-21 16:49:07,540 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-21 16:49:07,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-21 16:49:07,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 52 transitions. [2022-11-21 16:49:07,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:49:07,540 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 52 transitions. [2022-11-21 16:49:07,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 52 transitions. [2022-11-21 16:49:07,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-21 16:49:07,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 50 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:49:07,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2022-11-21 16:49:07,547 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 52 transitions. [2022-11-21 16:49:07,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-21 16:49:07,549 INFO L428 stractBuchiCegarLoop]: Abstraction has 51 states and 52 transitions. [2022-11-21 16:49:07,556 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-21 16:49:07,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 51 states and 52 transitions. [2022-11-21 16:49:07,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:07,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:49:07,560 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:49:07,561 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [22, 22, 1, 1, 1, 1, 1, 1] [2022-11-21 16:49:07,561 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-21 16:49:07,562 INFO L748 eck$LassoCheckResult]: Stem: 627#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 628#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 629#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 630#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 631#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 632#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 635#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 675#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 674#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 673#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 672#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 671#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 670#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 669#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 668#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 667#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 666#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 665#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 664#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 663#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 662#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 661#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 660#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 659#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 658#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 657#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 656#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 655#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 654#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 653#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 652#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 651#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 650#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 649#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 648#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 647#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 646#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 645#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 644#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 643#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 642#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 641#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 640#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 639#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 638#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 637#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 636#L15-3 assume !(main_~i~0#1 < 1048); 625#L15-4 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 626#L20 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short5#1 := 42 == main_#t~mem4#1; 633#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 634#L22-2 [2022-11-21 16:49:07,563 INFO L750 eck$LassoCheckResult]: Loop: 634#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 634#L22-2 [2022-11-21 16:49:07,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:07,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1293972767, now seen corresponding path program 4 times [2022-11-21 16:49:07,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:07,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572517905] [2022-11-21 16:49:07,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:07,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:08,330 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:08,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:08,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572517905] [2022-11-21 16:49:08,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572517905] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:49:08,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123910622] [2022-11-21 16:49:08,331 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-21 16:49:08,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:49:08,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:08,339 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:49:08,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-21 16:49:08,476 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-21 16:49:08,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:49:08,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-21 16:49:08,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:49:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:08,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:49:09,485 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:09,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123910622] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:49:09,485 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:49:09,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-11-21 16:49:09,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064927579] [2022-11-21 16:49:09,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:49:09,486 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 16:49:09,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:09,486 INFO L85 PathProgramCache]: Analyzing trace with hash 67, now seen corresponding path program 6 times [2022-11-21 16:49:09,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:09,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158654103] [2022-11-21 16:49:09,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:09,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:09,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:49:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:09,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:49:09,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:09,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-21 16:49:09,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-11-21 16:49:09,508 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. cyclomatic complexity: 3 Second operand has 49 states, 49 states have (on average 2.020408163265306) internal successors, (99), 49 states have internal predecessors, (99), 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) [2022-11-21 16:49:09,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:49:09,705 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2022-11-21 16:49:09,705 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 100 transitions. [2022-11-21 16:49:09,706 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:09,707 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 99 states and 100 transitions. [2022-11-21 16:49:09,707 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-21 16:49:09,707 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-21 16:49:09,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 100 transitions. [2022-11-21 16:49:09,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:49:09,708 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 100 transitions. [2022-11-21 16:49:09,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 100 transitions. [2022-11-21 16:49:09,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2022-11-21 16:49:09,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 99 states have (on average 1.0101010101010102) internal successors, (100), 98 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:49:09,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 100 transitions. [2022-11-21 16:49:09,713 INFO L240 hiAutomatonCegarLoop]: Abstraction has 99 states and 100 transitions. [2022-11-21 16:49:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-21 16:49:09,714 INFO L428 stractBuchiCegarLoop]: Abstraction has 99 states and 100 transitions. [2022-11-21 16:49:09,714 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-21 16:49:09,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 100 transitions. [2022-11-21 16:49:09,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:09,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:49:09,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:49:09,717 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [46, 46, 1, 1, 1, 1, 1, 1] [2022-11-21 16:49:09,718 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-21 16:49:09,718 INFO L748 eck$LassoCheckResult]: Stem: 1123#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 1125#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1126#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1127#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1128#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1131#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1219#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1218#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1217#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1216#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1215#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1214#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1213#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1212#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1211#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1210#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1209#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1208#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1207#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1206#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1205#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1204#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1203#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1202#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1201#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1200#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1199#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1198#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1197#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1196#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1195#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1194#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1193#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1192#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1191#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1190#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1189#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1188#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1187#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1186#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1185#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1184#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1183#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1182#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1181#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1180#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1179#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1178#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1177#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1176#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1175#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1174#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1173#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1172#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1171#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1170#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1169#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1168#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1167#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1166#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1165#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1164#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1163#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1162#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1161#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1160#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1159#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1158#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1157#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1156#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1155#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1154#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1153#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1152#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1151#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1150#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1149#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1148#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1147#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1146#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1145#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1144#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1143#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1142#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1141#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1140#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1139#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1138#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1137#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1136#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1135#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1134#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 1133#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1132#L15-3 assume !(main_~i~0#1 < 1048); 1121#L15-4 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 1122#L20 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short5#1 := 42 == main_#t~mem4#1; 1129#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 1130#L22-2 [2022-11-21 16:49:09,718 INFO L750 eck$LassoCheckResult]: Loop: 1130#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 1130#L22-2 [2022-11-21 16:49:09,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:09,719 INFO L85 PathProgramCache]: Analyzing trace with hash -675113137, now seen corresponding path program 5 times [2022-11-21 16:49:09,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:09,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592592355] [2022-11-21 16:49:09,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:09,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:12,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:12,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:12,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592592355] [2022-11-21 16:49:12,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592592355] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:49:12,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409179681] [2022-11-21 16:49:12,223 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-21 16:49:12,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:49:12,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:12,230 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:49:12,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-21 16:49:29,680 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-21 16:49:29,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:49:29,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-21 16:49:29,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:49:29,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:29,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:49:33,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:33,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409179681] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:49:33,205 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:49:33,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97 [2022-11-21 16:49:33,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868456140] [2022-11-21 16:49:33,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:49:33,206 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 16:49:33,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:33,206 INFO L85 PathProgramCache]: Analyzing trace with hash 67, now seen corresponding path program 7 times [2022-11-21 16:49:33,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:33,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210963959] [2022-11-21 16:49:33,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:33,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:33,209 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:49:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:33,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:49:33,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:33,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-11-21 16:49:33,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2022-11-21 16:49:33,239 INFO L87 Difference]: Start difference. First operand 99 states and 100 transitions. cyclomatic complexity: 3 Second operand has 97 states, 97 states have (on average 2.0103092783505154) internal successors, (195), 97 states have internal predecessors, (195), 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) [2022-11-21 16:49:33,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:49:33,677 INFO L93 Difference]: Finished difference Result 195 states and 196 transitions. [2022-11-21 16:49:33,677 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 196 transitions. [2022-11-21 16:49:33,681 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:33,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 195 states and 196 transitions. [2022-11-21 16:49:33,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-21 16:49:33,686 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-21 16:49:33,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 196 transitions. [2022-11-21 16:49:33,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:49:33,694 INFO L218 hiAutomatonCegarLoop]: Abstraction has 195 states and 196 transitions. [2022-11-21 16:49:33,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 196 transitions. [2022-11-21 16:49:33,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-11-21 16:49:33,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 195 states have (on average 1.005128205128205) internal successors, (196), 194 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:49:33,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 196 transitions. [2022-11-21 16:49:33,709 INFO L240 hiAutomatonCegarLoop]: Abstraction has 195 states and 196 transitions. [2022-11-21 16:49:33,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-21 16:49:33,711 INFO L428 stractBuchiCegarLoop]: Abstraction has 195 states and 196 transitions. [2022-11-21 16:49:33,712 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-11-21 16:49:33,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states and 196 transitions. [2022-11-21 16:49:33,714 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-21 16:49:33,714 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:49:33,714 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:49:33,717 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [94, 94, 1, 1, 1, 1, 1, 1] [2022-11-21 16:49:33,722 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-21 16:49:33,723 INFO L748 eck$LassoCheckResult]: Stem: 2099#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2100#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post1#1, main_~i~0#1, main_#t~mem3#1, main_#t~mem4#1, main_#t~short5#1, main_#t~nondet6#1, main_~x~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);main_~i~0#1 := 0; 2101#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2102#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2103#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2104#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2107#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2291#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2290#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2289#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2288#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2287#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2286#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2285#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2284#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2283#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2282#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2281#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2280#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2279#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2278#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2277#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2276#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2275#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2274#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2273#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2272#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2271#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2270#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2269#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2268#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2267#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2266#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2265#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2264#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2263#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2262#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2261#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2260#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2259#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2258#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2257#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2256#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2255#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2254#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2253#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2252#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2251#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2250#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2249#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2248#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2247#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2246#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2245#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2244#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2243#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2242#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2241#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2240#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2239#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2238#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2237#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2236#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2235#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2234#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2233#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2232#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2231#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2230#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2229#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2228#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2227#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2226#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2225#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2224#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2223#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2222#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2221#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2220#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2219#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2218#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2217#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2216#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2215#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2214#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2213#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2212#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2211#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2210#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2209#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2208#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2207#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2206#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2205#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2204#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2203#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2202#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2201#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2200#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2199#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2198#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2197#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2196#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2195#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2194#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2193#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2192#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2191#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2190#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2189#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2188#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2187#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2186#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2185#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2184#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2183#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2182#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2181#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2180#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2179#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2178#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2177#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2176#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2175#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2174#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2173#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2172#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2171#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2170#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2169#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2168#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2167#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2166#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2165#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2164#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2163#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2162#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2161#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2160#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2159#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2158#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2157#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2156#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2155#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2154#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2153#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2152#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2151#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2150#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2149#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2148#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2147#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2146#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2145#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2144#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2143#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2142#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2141#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2140#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2139#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2138#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2137#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2136#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2135#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2134#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2133#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2132#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2131#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2130#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2129#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2128#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2127#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2126#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2125#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2124#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2123#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2122#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2121#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2120#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2119#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2118#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2117#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2116#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2115#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2114#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2113#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2112#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2111#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2110#L15-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet2#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1; 2109#L15-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2108#L15-3 assume !(main_~i~0#1 < 1048); 2097#L15-4 assume main_~k~0#1 >= 0 && main_~k~0#1 < 1048;call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset, 4);main_#t~short5#1 := 23 == main_#t~mem3#1; 2098#L20 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_#t~short5#1 := 42 == main_#t~mem4#1; 2105#L20-2 assume main_#t~short5#1;havoc main_#t~mem3#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 2106#L22-2 [2022-11-21 16:49:33,727 INFO L750 eck$LassoCheckResult]: Loop: 2106#L22-2 assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~k~0#1; 2106#L22-2 [2022-11-21 16:49:33,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:33,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1064731729, now seen corresponding path program 6 times [2022-11-21 16:49:33,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:33,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411037248] [2022-11-21 16:49:33,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:33,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:41,859 INFO L134 CoverageAnalysis]: Checked inductivity of 8836 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:41,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:41,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411037248] [2022-11-21 16:49:41,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411037248] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:49:41,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254681393] [2022-11-21 16:49:41,860 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-21 16:49:41,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:49:41,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:41,861 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:49:41,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a65be912-4944-4844-a023-87b243f380b8/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process