./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash de7b6b08db65388ab09a4594226fbc2a49bc8d65ecd2b95d922fabd4f3caf1d7 --- 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-8393723 [2022-11-18 20:54:35,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:54:35,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:54:35,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:54:35,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:54:35,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:54:35,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:54:35,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:54:35,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:54:35,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:54:35,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:54:35,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:54:35,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:54:35,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:54:35,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:54:35,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:54:35,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:54:35,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:54:35,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:54:35,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:54:35,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:54:35,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:54:35,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:54:35,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:54:35,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:54:35,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:54:35,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:54:35,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:54:35,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:54:35,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:54:35,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:54:35,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:54:35,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:54:35,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:54:35,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:54:35,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:54:35,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:54:35,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:54:35,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:54:35,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:54:35,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:54:35,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-18 20:54:35,988 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:54:35,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:54:35,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:54:35,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:54:35,990 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:54:35,990 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:54:35,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:54:35,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:54:35,992 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:54:35,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:54:35,993 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:54:35,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:54:35,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:54:35,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:54:35,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:54:35,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:54:35,995 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:54:35,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:54:35,995 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:54:35,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:54:35,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:54:35,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:54:35,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:54:35,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:54:35,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:54:35,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:54:35,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:54:35,999 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:54:35,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:54:36,000 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:54:36,001 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:54:36,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:54:36,003 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de7b6b08db65388ab09a4594226fbc2a49bc8d65ecd2b95d922fabd4f3caf1d7 [2022-11-18 20:54:36,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:54:36,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:54:36,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:54:36,283 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:54:36,283 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:54:36,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg-alloca-1.i [2022-11-18 20:54:36,349 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/data/099058305/8586cb1fdc6040318dad03f01fda2b97/FLAGef3af0480 [2022-11-18 20:54:36,945 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:54:36,946 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg-alloca-1.i [2022-11-18 20:54:36,957 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/data/099058305/8586cb1fdc6040318dad03f01fda2b97/FLAGef3af0480 [2022-11-18 20:54:37,261 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/data/099058305/8586cb1fdc6040318dad03f01fda2b97 [2022-11-18 20:54:37,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:54:37,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:54:37,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:54:37,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:54:37,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:54:37,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:54:37" (1/1) ... [2022-11-18 20:54:37,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c08188b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:37, skipping insertion in model container [2022-11-18 20:54:37,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:54:37" (1/1) ... [2022-11-18 20:54:37,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:54:37,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:54:37,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:54:37,693 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:54:37,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:54:37,805 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:54:37,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:37 WrapperNode [2022-11-18 20:54:37,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:54:37,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:54:37,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:54:37,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:54:37,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:37" (1/1) ... [2022-11-18 20:54:37,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:37" (1/1) ... [2022-11-18 20:54:37,868 INFO L138 Inliner]: procedures = 115, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2022-11-18 20:54:37,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:54:37,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:54:37,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:54:37,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:54:37,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:37" (1/1) ... [2022-11-18 20:54:37,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:37" (1/1) ... [2022-11-18 20:54:37,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:37" (1/1) ... [2022-11-18 20:54:37,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:37" (1/1) ... [2022-11-18 20:54:37,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:37" (1/1) ... [2022-11-18 20:54:37,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:37" (1/1) ... [2022-11-18 20:54:37,906 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:37" (1/1) ... [2022-11-18 20:54:37,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:37" (1/1) ... [2022-11-18 20:54:37,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:54:37,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:54:37,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:54:37,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:54:37,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:37" (1/1) ... [2022-11-18 20:54:37,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:54:37,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:54:37,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:54:37,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:54:38,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:54:38,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:54:38,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:54:38,008 INFO L130 BoogieDeclarations]: Found specification of procedure new_lseg [2022-11-18 20:54:38,008 INFO L138 BoogieDeclarations]: Found implementation of procedure new_lseg [2022-11-18 20:54:38,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:54:38,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:54:38,145 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:54:38,158 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:54:38,408 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:54:38,418 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:54:38,419 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:54:38,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:54:38 BoogieIcfgContainer [2022-11-18 20:54:38,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:54:38,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:54:38,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:54:38,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:54:38,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:54:37" (1/3) ... [2022-11-18 20:54:38,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c258647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:54:38, skipping insertion in model container [2022-11-18 20:54:38,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:37" (2/3) ... [2022-11-18 20:54:38,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c258647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:54:38, skipping insertion in model container [2022-11-18 20:54:38,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:54:38" (3/3) ... [2022-11-18 20:54:38,434 INFO L112 eAbstractionObserver]: Analyzing ICFG cll_by_lseg-alloca-1.i [2022-11-18 20:54:38,457 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:54:38,458 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 20:54:38,542 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:54:38,553 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@55656eac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:54:38,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-18 20:54:38,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 18 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:54:38,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 20:54:38,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:38,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 20:54:38,573 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:54:38,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:38,582 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2022-11-18 20:54:38,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:38,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559003169] [2022-11-18 20:54:38,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:38,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:38,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:38,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:38,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559003169] [2022-11-18 20:54:38,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559003169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:38,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:38,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:54:38,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207017748] [2022-11-18 20:54:38,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:38,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:54:38,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:38,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:54:38,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:54:38,955 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 18 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-18 20:54:38,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:38,999 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-11-18 20:54:39,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:54:39,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) Word has length 3 [2022-11-18 20:54:39,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:39,010 INFO L225 Difference]: With dead ends: 22 [2022-11-18 20:54:39,010 INFO L226 Difference]: Without dead ends: 12 [2022-11-18 20:54:39,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:54:39,019 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:39,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 31 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:54:39,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-18 20:54:39,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-18 20:54:39,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.25) internal successors, (10), 10 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:39,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-18 20:54:39,056 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 3 [2022-11-18 20:54:39,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:39,056 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-18 20:54:39,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-18 20:54:39,057 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-18 20:54:39,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:54:39,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:39,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:39,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:54:39,059 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:54:39,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:39,060 INFO L85 PathProgramCache]: Analyzing trace with hash 88399226, now seen corresponding path program 1 times [2022-11-18 20:54:39,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:39,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139534424] [2022-11-18 20:54:39,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:39,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:39,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:39,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:39,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139534424] [2022-11-18 20:54:39,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139534424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:39,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:39,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:54:39,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414093674] [2022-11-18 20:54:39,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:39,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:54:39,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:39,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:54:39,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:54:39,313 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:39,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:39,363 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-11-18 20:54:39,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:54:39,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 20:54:39,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:39,364 INFO L225 Difference]: With dead ends: 12 [2022-11-18 20:54:39,364 INFO L226 Difference]: Without dead ends: 11 [2022-11-18 20:54:39,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:54:39,366 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:39,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 9 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:54:39,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-18 20:54:39,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-18 20:54:39,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:39,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2022-11-18 20:54:39,371 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2022-11-18 20:54:39,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:39,376 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2022-11-18 20:54:39,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:39,377 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2022-11-18 20:54:39,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:54:39,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:39,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:39,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:54:39,383 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting new_lsegErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:54:39,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:39,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1554591238, now seen corresponding path program 1 times [2022-11-18 20:54:39,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:39,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976934943] [2022-11-18 20:54:39,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:39,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:39,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:39,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:39,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976934943] [2022-11-18 20:54:39,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976934943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:39,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:39,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:54:39,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771724717] [2022-11-18 20:54:39,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:39,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:54:39,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:39,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:54:39,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:54:39,573 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:39,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:39,631 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-11-18 20:54:39,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:54:39,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:54:39,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:39,633 INFO L225 Difference]: With dead ends: 17 [2022-11-18 20:54:39,633 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 20:54:39,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:54:39,634 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:39,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 15 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:54:39,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 20:54:39,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2022-11-18 20:54:39,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:39,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-18 20:54:39,649 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 9 [2022-11-18 20:54:39,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:39,663 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-18 20:54:39,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:39,664 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-18 20:54:39,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:54:39,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:39,664 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:39,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:54:39,665 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting new_lsegErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:54:39,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:39,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1428514886, now seen corresponding path program 1 times [2022-11-18 20:54:39,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:39,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537665199] [2022-11-18 20:54:39,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:39,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:39,864 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:39,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:39,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537665199] [2022-11-18 20:54:39,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537665199] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:54:39,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082332384] [2022-11-18 20:54:39,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:39,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:54:39,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:54:39,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:54:39,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:54:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:39,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:54:39,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:54:40,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:40,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:54:40,225 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:40,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082332384] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:54:40,226 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:54:40,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-18 20:54:40,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382160611] [2022-11-18 20:54:40,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:54:40,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 20:54:40,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:40,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 20:54:40,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:54:40,229 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 9 states have internal predecessors, (26), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:40,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:40,379 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-11-18 20:54:40,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:54:40,380 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 9 states have internal predecessors, (26), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 20:54:40,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:40,383 INFO L225 Difference]: With dead ends: 32 [2022-11-18 20:54:40,384 INFO L226 Difference]: Without dead ends: 31 [2022-11-18 20:54:40,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:54:40,395 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 40 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:40,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 19 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:54:40,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-18 20:54:40,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-11-18 20:54:40,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:40,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2022-11-18 20:54:40,410 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 14 [2022-11-18 20:54:40,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:40,411 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2022-11-18 20:54:40,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 9 states have internal predecessors, (26), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:40,411 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2022-11-18 20:54:40,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 20:54:40,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:40,415 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:40,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:54:40,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:54:40,621 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting new_lsegErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:54:40,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:40,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1318743814, now seen corresponding path program 2 times [2022-11-18 20:54:40,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:40,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395217836] [2022-11-18 20:54:40,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:40,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:41,224 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:41,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:41,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395217836] [2022-11-18 20:54:41,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395217836] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:54:41,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922901201] [2022-11-18 20:54:41,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:54:41,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:54:41,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:54:41,228 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:54:41,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:54:41,423 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:54:41,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:54:41,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-18 20:54:41,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:54:41,581 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:41,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:54:41,871 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:41,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922901201] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:54:41,878 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:54:41,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-11-18 20:54:41,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171496351] [2022-11-18 20:54:41,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:54:41,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:54:41,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:41,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:54:41,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:54:41,888 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 25 states, 24 states have (on average 2.0833333333333335) internal successors, (50), 15 states have internal predecessors, (50), 11 states have call successors, (11), 10 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:42,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:42,253 INFO L93 Difference]: Finished difference Result 62 states and 67 transitions. [2022-11-18 20:54:42,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 20:54:42,253 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.0833333333333335) internal successors, (50), 15 states have internal predecessors, (50), 11 states have call successors, (11), 10 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 20:54:42,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:42,255 INFO L225 Difference]: With dead ends: 62 [2022-11-18 20:54:42,255 INFO L226 Difference]: Without dead ends: 61 [2022-11-18 20:54:42,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=315, Invalid=875, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 20:54:42,257 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 111 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:42,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 17 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:54:42,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-18 20:54:42,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2022-11-18 20:54:42,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 48 states have internal predecessors, (49), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:42,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2022-11-18 20:54:42,273 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 29 [2022-11-18 20:54:42,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:42,273 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2022-11-18 20:54:42,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.0833333333333335) internal successors, (50), 15 states have internal predecessors, (50), 11 states have call successors, (11), 10 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:42,274 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2022-11-18 20:54:42,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-18 20:54:42,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:42,279 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:42,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:54:42,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:54:42,486 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting new_lsegErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:54:42,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:42,487 INFO L85 PathProgramCache]: Analyzing trace with hash 832003962, now seen corresponding path program 3 times [2022-11-18 20:54:42,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:42,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721106170] [2022-11-18 20:54:42,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:42,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:43,451 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:43,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:43,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721106170] [2022-11-18 20:54:43,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721106170] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:54:43,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359078145] [2022-11-18 20:54:43,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:54:43,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:54:43,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:54:43,453 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:54:43,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:54:45,866 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-18 20:54:45,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:54:45,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-18 20:54:45,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:54:46,053 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:46,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:54:46,848 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:46,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359078145] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:54:46,849 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:54:46,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2022-11-18 20:54:46,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761164284] [2022-11-18 20:54:46,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:54:46,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-18 20:54:46,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:46,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-18 20:54:46,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=560, Invalid=1792, Unknown=0, NotChecked=0, Total=2352 [2022-11-18 20:54:46,854 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand has 49 states, 48 states have (on average 2.0416666666666665) internal successors, (98), 27 states have internal predecessors, (98), 23 states have call successors, (23), 22 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:47,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:47,693 INFO L93 Difference]: Finished difference Result 122 states and 133 transitions. [2022-11-18 20:54:47,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-18 20:54:47,695 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 2.0416666666666665) internal successors, (98), 27 states have internal predecessors, (98), 23 states have call successors, (23), 22 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-11-18 20:54:47,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:47,696 INFO L225 Difference]: With dead ends: 122 [2022-11-18 20:54:47,696 INFO L226 Difference]: Without dead ends: 121 [2022-11-18 20:54:47,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 966 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1341, Invalid=3629, Unknown=0, NotChecked=0, Total=4970 [2022-11-18 20:54:47,699 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 262 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:47,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 29 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:54:47,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-18 20:54:47,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 120. [2022-11-18 20:54:47,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 96 states have (on average 1.0104166666666667) internal successors, (97), 96 states have internal predecessors, (97), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:47,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 120 transitions. [2022-11-18 20:54:47,746 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 120 transitions. Word has length 59 [2022-11-18 20:54:47,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:47,746 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 120 transitions. [2022-11-18 20:54:47,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 2.0416666666666665) internal successors, (98), 27 states have internal predecessors, (98), 23 states have call successors, (23), 22 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:47,747 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 120 transitions. [2022-11-18 20:54:47,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-18 20:54:47,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:47,750 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:47,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:54:47,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:54:47,952 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting new_lsegErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:54:47,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:47,952 INFO L85 PathProgramCache]: Analyzing trace with hash -432415622, now seen corresponding path program 4 times [2022-11-18 20:54:47,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:47,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98272287] [2022-11-18 20:54:47,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:47,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:50,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:50,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:50,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98272287] [2022-11-18 20:54:50,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98272287] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:54:50,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907508357] [2022-11-18 20:54:50,608 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:54:50,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:54:50,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:54:50,612 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:54:50,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:54:50,963 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:54:50,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:54:50,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-18 20:54:50,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:54:51,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:51,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:54:53,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:53,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907508357] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:54:53,944 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:54:53,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 96 [2022-11-18 20:54:53,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138092033] [2022-11-18 20:54:53,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:54:53,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-11-18 20:54:53,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:53,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-11-18 20:54:53,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2264, Invalid=7048, Unknown=0, NotChecked=0, Total=9312 [2022-11-18 20:54:53,952 INFO L87 Difference]: Start difference. First operand 120 states and 120 transitions. Second operand has 97 states, 96 states have (on average 2.0208333333333335) internal successors, (194), 51 states have internal predecessors, (194), 47 states have call successors, (47), 46 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:56,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:56,696 INFO L93 Difference]: Finished difference Result 242 states and 265 transitions. [2022-11-18 20:54:56,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-18 20:54:56,697 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 96 states have (on average 2.0208333333333335) internal successors, (194), 51 states have internal predecessors, (194), 47 states have call successors, (47), 46 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2022-11-18 20:54:56,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:56,700 INFO L225 Difference]: With dead ends: 242 [2022-11-18 20:54:56,701 INFO L226 Difference]: Without dead ends: 241 [2022-11-18 20:54:56,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4230 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=5553, Invalid=14753, Unknown=0, NotChecked=0, Total=20306 [2022-11-18 20:54:56,711 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 682 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:56,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 39 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:54:56,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-11-18 20:54:56,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 240. [2022-11-18 20:54:56,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 192 states have (on average 1.0052083333333333) internal successors, (193), 192 states have internal predecessors, (193), 47 states have call successors, (47), 47 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:56,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 240 transitions. [2022-11-18 20:54:56,775 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 240 transitions. Word has length 119 [2022-11-18 20:54:56,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:56,776 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 240 transitions. [2022-11-18 20:54:56,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 96 states have (on average 2.0208333333333335) internal successors, (194), 51 states have internal predecessors, (194), 47 states have call successors, (47), 46 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:56,777 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 240 transitions. [2022-11-18 20:54:56,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-18 20:54:56,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:56,781 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:56,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:54:56,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:54:56,988 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting new_lsegErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:54:56,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:56,988 INFO L85 PathProgramCache]: Analyzing trace with hash 265967226, now seen corresponding path program 5 times [2022-11-18 20:54:56,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:56,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66086371] [2022-11-18 20:54:56,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:56,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:05,743 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:05,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:05,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66086371] [2022-11-18 20:55:05,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66086371] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:05,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13149577] [2022-11-18 20:55:05,745 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:55:05,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:05,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:05,748 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:05,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 21:05:51,425 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-18 21:05:51,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:05:51,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 2342 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-18 21:05:51,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:05:52,310 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:52,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:06:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:00,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13149577] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:06:00,252 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:06:00,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 192 [2022-11-18 21:06:00,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928393419] [2022-11-18 21:06:00,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:06:00,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2022-11-18 21:06:00,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:00,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2022-11-18 21:06:00,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9128, Invalid=27928, Unknown=0, NotChecked=0, Total=37056 [2022-11-18 21:06:00,264 INFO L87 Difference]: Start difference. First operand 240 states and 240 transitions. Second operand has 193 states, 192 states have (on average 2.0104166666666665) internal successors, (386), 99 states have internal predecessors, (386), 95 states have call successors, (95), 94 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:08,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:06:08,448 INFO L93 Difference]: Finished difference Result 482 states and 529 transitions. [2022-11-18 21:06:08,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-18 21:06:08,449 INFO L78 Accepts]: Start accepts. Automaton has has 193 states, 192 states have (on average 2.0104166666666665) internal successors, (386), 99 states have internal predecessors, (386), 95 states have call successors, (95), 94 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 239 [2022-11-18 21:06:08,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:06:08,452 INFO L225 Difference]: With dead ends: 482 [2022-11-18 21:06:08,452 INFO L226 Difference]: Without dead ends: 481 [2022-11-18 21:06:08,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17670 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=22617, Invalid=59465, Unknown=0, NotChecked=0, Total=82082 [2022-11-18 21:06:08,462 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1757 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1757 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 21:06:08,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1757 Valid, 40 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 21:06:08,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-11-18 21:06:08,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 480. [2022-11-18 21:06:08,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 384 states have (on average 1.0026041666666667) internal successors, (385), 384 states have internal predecessors, (385), 95 states have call successors, (95), 95 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:08,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 480 transitions. [2022-11-18 21:06:08,517 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 480 transitions. Word has length 239 [2022-11-18 21:06:08,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:06:08,518 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 480 transitions. [2022-11-18 21:06:08,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 192 states have (on average 2.0104166666666665) internal successors, (386), 99 states have internal predecessors, (386), 95 states have call successors, (95), 94 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:08,519 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 480 transitions. [2022-11-18 21:06:08,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2022-11-18 21:06:08,530 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:06:08,530 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:08,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 21:06:08,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:06:08,752 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting new_lsegErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:06:08,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:08,752 INFO L85 PathProgramCache]: Analyzing trace with hash 797526650, now seen corresponding path program 6 times [2022-11-18 21:06:08,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:08,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438399205] [2022-11-18 21:06:08,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:08,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:33,600 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:33,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:33,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438399205] [2022-11-18 21:06:33,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438399205] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:06:33,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912517993] [2022-11-18 21:06:33,601 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 21:06:33,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:06:33,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:06:33,602 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:06:33,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ef5d45-8159-4578-813b-245375280e15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process