./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8 --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 32bit --witnessprinter.graph.data.programhash 961225f1af8bda006e5a86aed07a62a3e426daf2d218eb9a2332372592a548eb --- 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-e04fb08 [2022-11-16 10:58:34,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:58:34,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:58:34,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:58:34,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:58:34,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:58:34,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:58:34,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:58:34,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:58:34,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:58:34,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:58:34,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:58:34,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:58:34,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:58:34,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:58:34,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:58:34,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:58:34,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:58:34,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:58:34,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:58:34,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:58:34,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:58:34,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:58:34,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:58:34,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:58:34,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:58:34,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:58:34,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:58:34,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:58:34,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:58:34,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:58:34,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:58:34,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:58:34,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:58:34,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:58:34,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:58:34,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:58:34,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:58:34,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:58:34,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:58:34,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:58:34,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 10:58:35,025 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:58:35,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:58:35,026 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:58:35,026 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:58:35,027 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:58:35,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:58:35,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:58:35,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:58:35,029 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:58:35,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:58:35,030 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 10:58:35,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 10:58:35,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:58:35,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 10:58:35,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:58:35,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:58:35,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:58:35,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:58:35,032 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 10:58:35,032 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 10:58:35,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:58:35,033 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:58:35,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:58:35,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:58:35,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:58:35,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:58:35,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:58:35,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:58:35,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:58:35,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:58:35,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:58:35,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:58:35,037 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:58:35,037 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:58:35,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:58:35,038 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_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 961225f1af8bda006e5a86aed07a62a3e426daf2d218eb9a2332372592a548eb [2022-11-16 10:58:35,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:58:35,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:58:35,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:58:35,325 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:58:35,326 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:58:35,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i [2022-11-16 10:58:35,399 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/data/f73d688f0/4c9ae998824d48e9984fde31a60bd8b8/FLAG7701ce0b5 [2022-11-16 10:58:36,058 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:58:36,059 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i [2022-11-16 10:58:36,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/data/f73d688f0/4c9ae998824d48e9984fde31a60bd8b8/FLAG7701ce0b5 [2022-11-16 10:58:36,257 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/data/f73d688f0/4c9ae998824d48e9984fde31a60bd8b8 [2022-11-16 10:58:36,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:58:36,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:58:36,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:58:36,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:58:36,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:58:36,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:58:36" (1/1) ... [2022-11-16 10:58:36,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e64f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:36, skipping insertion in model container [2022-11-16 10:58:36,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:58:36" (1/1) ... [2022-11-16 10:58:36,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:58:36,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:58:36,887 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[33021,33034] [2022-11-16 10:58:37,171 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[84583,84596] [2022-11-16 10:58:37,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:58:37,199 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:58:37,231 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[33021,33034] [2022-11-16 10:58:37,471 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[84583,84596] [2022-11-16 10:58:37,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:58:37,520 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:58:37,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:37 WrapperNode [2022-11-16 10:58:37,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:58:37,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:58:37,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:58:37,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:58:37,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:37" (1/1) ... [2022-11-16 10:58:37,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:37" (1/1) ... [2022-11-16 10:58:37,721 INFO L138 Inliner]: procedures = 177, calls = 781, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3023 [2022-11-16 10:58:37,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:58:37,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:58:37,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:58:37,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:58:37,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:37" (1/1) ... [2022-11-16 10:58:37,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:37" (1/1) ... [2022-11-16 10:58:37,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:37" (1/1) ... [2022-11-16 10:58:37,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:37" (1/1) ... [2022-11-16 10:58:37,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:37" (1/1) ... [2022-11-16 10:58:37,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:37" (1/1) ... [2022-11-16 10:58:37,926 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:37" (1/1) ... [2022-11-16 10:58:37,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:37" (1/1) ... [2022-11-16 10:58:37,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:58:37,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:58:37,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:58:37,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:58:37,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:37" (1/1) ... [2022-11-16 10:58:37,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:58:37,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:38,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:58:38,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:58:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 10:58:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 10:58:38,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 10:58:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 10:58:38,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 10:58:38,083 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 10:58:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 10:58:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:58:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 10:58:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:58:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 10:58:38,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 10:58:38,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:58:38,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:58:38,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:58:38,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:58:38,409 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:58:38,411 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:58:41,459 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:58:41,484 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:58:41,484 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-16 10:58:41,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:58:41 BoogieIcfgContainer [2022-11-16 10:58:41,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:58:41,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:58:41,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:58:41,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:58:41,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:58:36" (1/3) ... [2022-11-16 10:58:41,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2c66dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:58:41, skipping insertion in model container [2022-11-16 10:58:41,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:37" (2/3) ... [2022-11-16 10:58:41,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2c66dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:58:41, skipping insertion in model container [2022-11-16 10:58:41,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:58:41" (3/3) ... [2022-11-16 10:58:41,501 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test9-2.i [2022-11-16 10:58:41,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:58:41,525 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-16 10:58:41,645 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:58:41,656 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;@4f14b953, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:58:41,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-16 10:58:41,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 1206 states, 692 states have (on average 1.9147398843930636) internal successors, (1325), 1200 states have internal predecessors, (1325), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-16 10:58:41,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 10:58:41,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:58:41,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:58:41,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 10:58:41,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:41,685 INFO L85 PathProgramCache]: Analyzing trace with hash 552713999, now seen corresponding path program 1 times [2022-11-16 10:58:41,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:41,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467004818] [2022-11-16 10:58:41,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:41,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:41,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:41,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467004818] [2022-11-16 10:58:41,862 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-16 10:58:41,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972496618] [2022-11-16 10:58:41,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:41,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:41,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:41,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:58:41,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 10:58:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:42,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 10:58:42,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:58:42,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:42,087 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:58:42,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972496618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:58:42,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:58:42,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:58:42,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480674372] [2022-11-16 10:58:42,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:58:42,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 10:58:42,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:42,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 10:58:42,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 10:58:42,137 INFO L87 Difference]: Start difference. First operand has 1206 states, 692 states have (on average 1.9147398843930636) internal successors, (1325), 1200 states have internal predecessors, (1325), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:42,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:58:42,360 INFO L93 Difference]: Finished difference Result 2410 states and 5160 transitions. [2022-11-16 10:58:42,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 10:58:42,363 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-16 10:58:42,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:58:42,394 INFO L225 Difference]: With dead ends: 2410 [2022-11-16 10:58:42,394 INFO L226 Difference]: Without dead ends: 1173 [2022-11-16 10:58:42,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 10:58:42,411 INFO L413 NwaCegarLoop]: 2262 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 10:58:42,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 10:58:42,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2022-11-16 10:58:42,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1173. [2022-11-16 10:58:42,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 660 states have (on average 1.8363636363636364) internal successors, (1212), 1167 states have internal predecessors, (1212), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-16 10:58:42,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 2218 transitions. [2022-11-16 10:58:42,856 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 2218 transitions. Word has length 7 [2022-11-16 10:58:42,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:58:42,856 INFO L495 AbstractCegarLoop]: Abstraction has 1173 states and 2218 transitions. [2022-11-16 10:58:42,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:42,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 2218 transitions. [2022-11-16 10:58:42,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 10:58:42,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:58:42,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:58:42,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 10:58:43,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 10:58:43,065 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 10:58:43,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:43,065 INFO L85 PathProgramCache]: Analyzing trace with hash 552715921, now seen corresponding path program 1 times [2022-11-16 10:58:43,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:43,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703567928] [2022-11-16 10:58:43,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:43,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:43,097 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 10:58:43,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [435771880] [2022-11-16 10:58:43,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:43,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:43,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:43,100 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:58:43,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 10:58:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:43,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 10:58:43,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:58:43,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 10:58:43,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 10:58:43,387 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 10:58:43,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-16 10:58:43,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:58:43,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-16 10:58:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:43,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:58:43,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:43,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703567928] [2022-11-16 10:58:43,444 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 10:58:43,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435771880] [2022-11-16 10:58:43,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435771880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:58:43,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:58:43,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 10:58:43,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756409624] [2022-11-16 10:58:43,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:58:43,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 10:58:43,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:43,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 10:58:43,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 10:58:43,448 INFO L87 Difference]: Start difference. First operand 1173 states and 2218 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:47,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:58:47,591 INFO L93 Difference]: Finished difference Result 2290 states and 4369 transitions. [2022-11-16 10:58:47,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 10:58:47,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-16 10:58:47,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:58:47,616 INFO L225 Difference]: With dead ends: 2290 [2022-11-16 10:58:47,616 INFO L226 Difference]: Without dead ends: 2288 [2022-11-16 10:58:47,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 10:58:47,620 INFO L413 NwaCegarLoop]: 2671 mSDtfsCounter, 1185 mSDsluCounter, 5953 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 8624 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-16 10:58:47,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 8624 Invalid, 1766 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-16 10:58:47,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2022-11-16 10:58:47,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 1179. [2022-11-16 10:58:47,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 666 states have (on average 1.8303303303303304) internal successors, (1219), 1173 states have internal predecessors, (1219), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-16 10:58:48,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 2225 transitions. [2022-11-16 10:58:48,003 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 2225 transitions. Word has length 7 [2022-11-16 10:58:48,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:58:48,003 INFO L495 AbstractCegarLoop]: Abstraction has 1179 states and 2225 transitions. [2022-11-16 10:58:48,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:48,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 2225 transitions. [2022-11-16 10:58:48,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-16 10:58:48,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:58:48,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:58:48,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 10:58:48,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:48,220 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 10:58:48,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:48,221 INFO L85 PathProgramCache]: Analyzing trace with hash -713285695, now seen corresponding path program 1 times [2022-11-16 10:58:48,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:48,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809587199] [2022-11-16 10:58:48,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:48,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:48,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:48,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:48,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809587199] [2022-11-16 10:58:48,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809587199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:58:48,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:58:48,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 10:58:48,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712836502] [2022-11-16 10:58:48,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:58:48,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 10:58:48,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:48,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 10:58:48,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 10:58:48,794 INFO L87 Difference]: Start difference. First operand 1179 states and 2225 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2022-11-16 10:58:50,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:58:50,099 INFO L93 Difference]: Finished difference Result 3320 states and 6403 transitions. [2022-11-16 10:58:50,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 10:58:50,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 44 [2022-11-16 10:58:50,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:58:50,116 INFO L225 Difference]: With dead ends: 3320 [2022-11-16 10:58:50,116 INFO L226 Difference]: Without dead ends: 2247 [2022-11-16 10:58:50,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 10:58:50,124 INFO L413 NwaCegarLoop]: 2692 mSDtfsCounter, 1090 mSDsluCounter, 4338 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 7030 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 10:58:50,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 7030 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 10:58:50,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2022-11-16 10:58:50,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 1179. [2022-11-16 10:58:50,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 666 states have (on average 1.8288288288288288) internal successors, (1218), 1173 states have internal predecessors, (1218), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-16 10:58:50,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 2224 transitions. [2022-11-16 10:58:50,570 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 2224 transitions. Word has length 44 [2022-11-16 10:58:50,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:58:50,570 INFO L495 AbstractCegarLoop]: Abstraction has 1179 states and 2224 transitions. [2022-11-16 10:58:50,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2022-11-16 10:58:50,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 2224 transitions. [2022-11-16 10:58:50,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-16 10:58:50,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:58:50,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:58:50,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 10:58:50,576 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 10:58:50,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:50,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1818750011, now seen corresponding path program 1 times [2022-11-16 10:58:50,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:50,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013209513] [2022-11-16 10:58:50,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:50,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:50,723 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 10:58:50,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1488170516] [2022-11-16 10:58:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:50,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:50,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:50,724 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:58:50,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 10:58:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:51,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 10:58:51,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:58:51,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:51,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:58:51,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:51,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013209513] [2022-11-16 10:58:51,488 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 10:58:51,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488170516] [2022-11-16 10:58:51,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488170516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:58:51,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:58:51,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 10:58:51,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810658118] [2022-11-16 10:58:51,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:58:51,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:58:51,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:51,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:58:51,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:58:51,493 INFO L87 Difference]: Start difference. First operand 1179 states and 2224 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:51,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:58:51,622 INFO L93 Difference]: Finished difference Result 2371 states and 4471 transitions. [2022-11-16 10:58:51,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:58:51,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-11-16 10:58:51,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:58:51,631 INFO L225 Difference]: With dead ends: 2371 [2022-11-16 10:58:51,632 INFO L226 Difference]: Without dead ends: 1200 [2022-11-16 10:58:51,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:58:51,638 INFO L413 NwaCegarLoop]: 2198 mSDtfsCounter, 9 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4381 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 10:58:51,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4381 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 10:58:51,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2022-11-16 10:58:51,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1199. [2022-11-16 10:58:51,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1199 states, 686 states have (on average 1.80466472303207) internal successors, (1238), 1193 states have internal predecessors, (1238), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-16 10:58:51,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 2244 transitions. [2022-11-16 10:58:51,890 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 2244 transitions. Word has length 57 [2022-11-16 10:58:51,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:58:51,891 INFO L495 AbstractCegarLoop]: Abstraction has 1199 states and 2244 transitions. [2022-11-16 10:58:51,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:51,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 2244 transitions. [2022-11-16 10:58:51,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-16 10:58:51,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:58:51,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:58:51,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 10:58:52,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-16 10:58:52,110 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 10:58:52,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:52,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1309276921, now seen corresponding path program 1 times [2022-11-16 10:58:52,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:52,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979210377] [2022-11-16 10:58:52,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:52,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:52,263 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 10:58:52,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [147133360] [2022-11-16 10:58:52,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:52,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:52,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:52,266 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:58:52,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 10:58:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:53,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 1540 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 10:58:53,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:58:53,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:53,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:58:53,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:53,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979210377] [2022-11-16 10:58:53,123 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 10:58:53,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147133360] [2022-11-16 10:58:53,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147133360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:58:53,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:58:53,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 10:58:53,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127286966] [2022-11-16 10:58:53,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:58:53,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 10:58:53,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:53,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 10:58:53,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 10:58:53,127 INFO L87 Difference]: Start difference. First operand 1199 states and 2244 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:53,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:58:53,317 INFO L93 Difference]: Finished difference Result 2380 states and 4470 transitions. [2022-11-16 10:58:53,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 10:58:53,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-11-16 10:58:53,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:58:53,326 INFO L225 Difference]: With dead ends: 2380 [2022-11-16 10:58:53,326 INFO L226 Difference]: Without dead ends: 1189 [2022-11-16 10:58:53,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 10:58:53,336 INFO L413 NwaCegarLoop]: 2200 mSDtfsCounter, 1200 mSDsluCounter, 2708 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 4908 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 10:58:53,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1703 Valid, 4908 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 10:58:53,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2022-11-16 10:58:53,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1185. [2022-11-16 10:58:53,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 672 states have (on average 1.8110119047619047) internal successors, (1217), 1179 states have internal predecessors, (1217), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-16 10:58:53,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 2223 transitions. [2022-11-16 10:58:53,585 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 2223 transitions. Word has length 57 [2022-11-16 10:58:53,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:58:53,586 INFO L495 AbstractCegarLoop]: Abstraction has 1185 states and 2223 transitions. [2022-11-16 10:58:53,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:53,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 2223 transitions. [2022-11-16 10:58:53,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-16 10:58:53,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:58:53,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:58:53,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 10:58:53,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:53,803 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 10:58:53,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:53,804 INFO L85 PathProgramCache]: Analyzing trace with hash 714659257, now seen corresponding path program 1 times [2022-11-16 10:58:53,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:53,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981691058] [2022-11-16 10:58:53,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:53,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:53,932 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 10:58:53,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [503635330] [2022-11-16 10:58:53,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:53,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:53,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:53,935 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:58:53,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 10:58:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:54,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 1526 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 10:58:54,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:58:55,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:55,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:58:55,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:55,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981691058] [2022-11-16 10:58:55,011 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 10:58:55,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503635330] [2022-11-16 10:58:55,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503635330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:58:55,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:58:55,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 10:58:55,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004944067] [2022-11-16 10:58:55,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:58:55,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:58:55,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:55,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:58:55,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:58:55,014 INFO L87 Difference]: Start difference. First operand 1185 states and 2223 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:55,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:58:55,262 INFO L93 Difference]: Finished difference Result 3456 states and 6551 transitions. [2022-11-16 10:58:55,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:58:55,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-11-16 10:58:55,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:58:55,277 INFO L225 Difference]: With dead ends: 3456 [2022-11-16 10:58:55,277 INFO L226 Difference]: Without dead ends: 2279 [2022-11-16 10:58:55,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:58:55,284 INFO L413 NwaCegarLoop]: 2759 mSDtfsCounter, 1078 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 4948 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 10:58:55,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 4948 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 10:58:55,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2022-11-16 10:58:55,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2275. [2022-11-16 10:58:55,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2275 states, 1262 states have (on average 1.8446909667194928) internal successors, (2328), 2269 states have internal predecessors, (2328), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2022-11-16 10:58:55,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2275 states to 2275 states and 4334 transitions. [2022-11-16 10:58:55,845 INFO L78 Accepts]: Start accepts. Automaton has 2275 states and 4334 transitions. Word has length 57 [2022-11-16 10:58:55,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:58:55,846 INFO L495 AbstractCegarLoop]: Abstraction has 2275 states and 4334 transitions. [2022-11-16 10:58:55,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:58:55,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2275 states and 4334 transitions. [2022-11-16 10:58:55,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-16 10:58:55,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:58:55,848 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:58:55,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 10:58:56,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:56,058 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 10:58:56,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:56,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1151749131, now seen corresponding path program 1 times [2022-11-16 10:58:56,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:56,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195540249] [2022-11-16 10:58:56,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:56,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:56,121 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 10:58:56,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [378529042] [2022-11-16 10:58:56,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:56,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:56,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:56,123 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:58:56,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5474c7cd-a129-4698-be13-f8a5987bac44/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 10:58:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:56,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 159 conjunts are in the unsatisfiable core [2022-11-16 10:58:56,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:58:56,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 10:58:56,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 10:58:56,937 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 10:58:56,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 10:58:57,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-16 10:58:57,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-16 10:58:57,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-16 10:58:57,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-16 10:58:57,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 10:58:57,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:58:57,884 INFO L321 Elim1Store]: treesize reduction 4, result has 71.4 percent of original size [2022-11-16 10:58:57,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 20 [2022-11-16 10:58:57,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-16 10:58:58,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-11-16 10:58:58,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-16 10:59:19,918 INFO L217 Elim1Store]: Index analysis took 1105 ms