./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/standard_init3_ground-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/standard_init3_ground-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a --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 e3a23c39a71f68ea97a16f1ff860e4af783e55492bb64ac88412e1e3f7ca41d5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:08:09,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:08:09,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:08:09,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:08:09,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:08:09,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:08:09,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:08:09,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:08:09,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:08:09,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:08:09,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:08:09,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:08:09,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:08:09,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:08:09,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:08:09,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:08:09,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:08:09,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:08:09,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:08:09,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:08:09,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:08:09,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:08:09,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:08:09,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:08:09,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:08:09,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:08:09,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:08:09,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:08:09,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:08:09,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:08:09,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:08:09,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:08:09,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:08:09,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:08:09,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:08:09,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:08:09,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:08:09,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:08:09,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:08:09,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:08:09,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:08:09,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 17:08:09,244 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:08:09,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:08:09,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:08:09,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:08:09,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:08:09,245 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:08:09,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:08:09,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:08:09,246 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:08:09,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:08:09,247 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:08:09,247 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:08:09,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:08:09,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:08:09,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:08:09,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:08:09,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:08:09,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:08:09,248 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 17:08:09,248 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:08:09,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:08:09,249 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:08:09,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:08:09,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:08:09,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:08:09,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:08:09,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:08:09,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:08:09,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:08:09,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:08:09,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:08:09,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:08:09,251 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:08:09,251 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:08:09,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:08:09,251 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_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3a23c39a71f68ea97a16f1ff860e4af783e55492bb64ac88412e1e3f7ca41d5 [2022-11-21 17:08:09,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:08:09,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:08:09,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:08:09,542 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:08:09,542 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:08:09,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/array-examples/standard_init3_ground-2.i [2022-11-21 17:08:12,599 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:08:12,831 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:08:12,832 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/sv-benchmarks/c/array-examples/standard_init3_ground-2.i [2022-11-21 17:08:12,838 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/data/c21389da5/261a7d122b7540c79450c038df4d4b58/FLAG0a9fd0027 [2022-11-21 17:08:12,856 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/data/c21389da5/261a7d122b7540c79450c038df4d4b58 [2022-11-21 17:08:12,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:08:12,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:08:12,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:08:12,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:08:12,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:08:12,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:08:12" (1/1) ... [2022-11-21 17:08:12,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f4da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:12, skipping insertion in model container [2022-11-21 17:08:12,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:08:12" (1/1) ... [2022-11-21 17:08:12,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:08:12,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:08:13,038 WARN L237 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_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/sv-benchmarks/c/array-examples/standard_init3_ground-2.i[816,829] [2022-11-21 17:08:13,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:08:13,060 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:08:13,071 WARN L237 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_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/sv-benchmarks/c/array-examples/standard_init3_ground-2.i[816,829] [2022-11-21 17:08:13,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:08:13,088 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:08:13,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:13 WrapperNode [2022-11-21 17:08:13,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:08:13,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:08:13,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:08:13,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:08:13,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:13" (1/1) ... [2022-11-21 17:08:13,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:13" (1/1) ... [2022-11-21 17:08:13,121 INFO L138 Inliner]: procedures = 15, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2022-11-21 17:08:13,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:08:13,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:08:13,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:08:13,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:08:13,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:13" (1/1) ... [2022-11-21 17:08:13,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:13" (1/1) ... [2022-11-21 17:08:13,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:13" (1/1) ... [2022-11-21 17:08:13,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:13" (1/1) ... [2022-11-21 17:08:13,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:13" (1/1) ... [2022-11-21 17:08:13,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:13" (1/1) ... [2022-11-21 17:08:13,143 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:13" (1/1) ... [2022-11-21 17:08:13,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:13" (1/1) ... [2022-11-21 17:08:13,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:08:13,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:08:13,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:08:13,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:08:13,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:13" (1/1) ... [2022-11-21 17:08:13,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:08:13,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:08:13,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:08:13,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:08:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:08:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:08:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:08:13,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:08:13,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:08:13,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:08:13,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:08:13,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:08:13,298 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:08:13,300 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:08:13,428 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:08:13,435 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:08:13,435 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-21 17:08:13,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:08:13 BoogieIcfgContainer [2022-11-21 17:08:13,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:08:13,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:08:13,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:08:13,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:08:13,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:08:12" (1/3) ... [2022-11-21 17:08:13,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c068fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:08:13, skipping insertion in model container [2022-11-21 17:08:13,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:13" (2/3) ... [2022-11-21 17:08:13,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c068fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:08:13, skipping insertion in model container [2022-11-21 17:08:13,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:08:13" (3/3) ... [2022-11-21 17:08:13,446 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_init3_ground-2.i [2022-11-21 17:08:13,462 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:08:13,462 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-21 17:08:13,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:08:13,520 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;@393dd854, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:08:13,520 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-21 17:08:13,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:13,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 17:08:13,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:13,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-21 17:08:13,531 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)] === [2022-11-21 17:08:13,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:13,535 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-11-21 17:08:13,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:13,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789915722] [2022-11-21 17:08:13,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:13,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:13,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:13,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:13,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789915722] [2022-11-21 17:08:13,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789915722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:13,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:13,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:08:13,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259442758] [2022-11-21 17:08:13,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:13,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:08:13,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:13,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:08:13,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:08:13,822 INFO L87 Difference]: Start difference. First operand has 33 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:13,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:13,940 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2022-11-21 17:08:13,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:08:13,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-21 17:08:13,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:13,951 INFO L225 Difference]: With dead ends: 70 [2022-11-21 17:08:13,951 INFO L226 Difference]: Without dead ends: 37 [2022-11-21 17:08:13,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:08:13,958 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 5 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:13,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 42 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:08:13,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-21 17:08:13,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-21 17:08:13,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 36 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:13,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2022-11-21 17:08:13,994 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 4 [2022-11-21 17:08:13,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:13,995 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2022-11-21 17:08:13,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:13,995 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2022-11-21 17:08:13,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 17:08:13,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:13,996 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-21 17:08:13,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:08:13,997 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)] === [2022-11-21 17:08:13,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:13,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629419, now seen corresponding path program 1 times [2022-11-21 17:08:13,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:13,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141702069] [2022-11-21 17:08:13,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:13,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:14,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:08:14,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:14,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141702069] [2022-11-21 17:08:14,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141702069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:14,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:14,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:08:14,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518277973] [2022-11-21 17:08:14,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:14,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:08:14,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:14,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:08:14,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:08:14,123 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-11-21 17:08:14,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:14,191 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2022-11-21 17:08:14,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:08:14,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2022-11-21 17:08:14,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:14,193 INFO L225 Difference]: With dead ends: 37 [2022-11-21 17:08:14,193 INFO L226 Difference]: Without dead ends: 34 [2022-11-21 17:08:14,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:08:14,195 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:14,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 26 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:08:14,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-21 17:08:14,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-21 17:08:14,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:14,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-21 17:08:14,203 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 7 [2022-11-21 17:08:14,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:14,203 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-21 17:08:14,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-11-21 17:08:14,204 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-21 17:08:14,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 17:08:14,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:14,205 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-11-21 17:08:14,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:08:14,205 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 17:08:14,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:14,206 INFO L85 PathProgramCache]: Analyzing trace with hash 294937186, now seen corresponding path program 1 times [2022-11-21 17:08:14,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:14,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427732926] [2022-11-21 17:08:14,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:14,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:14,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:14,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:14,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427732926] [2022-11-21 17:08:14,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427732926] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:08:14,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097354105] [2022-11-21 17:08:14,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:14,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:08:14,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:08:14,371 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:08:14,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 17:08:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:14,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:08:14,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:08:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:14,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:08:14,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097354105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:14,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:08:14,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-21 17:08:14,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399682313] [2022-11-21 17:08:14,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:14,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:08:14,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:14,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:08:14,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:08:14,513 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:14,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:14,564 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2022-11-21 17:08:14,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:08:14,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-21 17:08:14,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:14,566 INFO L225 Difference]: With dead ends: 34 [2022-11-21 17:08:14,566 INFO L226 Difference]: Without dead ends: 31 [2022-11-21 17:08:14,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:08:14,568 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 32 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:14,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 14 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:08:14,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-21 17:08:14,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2022-11-21 17:08:14,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:14,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-11-21 17:08:14,574 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 8 [2022-11-21 17:08:14,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:14,575 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-11-21 17:08:14,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:14,575 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-11-21 17:08:14,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-21 17:08:14,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:14,576 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] [2022-11-21 17:08:14,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 17:08:14,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:08:14,783 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 17:08:14,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:14,784 INFO L85 PathProgramCache]: Analyzing trace with hash 34893595, now seen corresponding path program 1 times [2022-11-21 17:08:14,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:14,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495774264] [2022-11-21 17:08:14,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:14,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:14,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:08:14,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:14,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495774264] [2022-11-21 17:08:14,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495774264] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:08:14,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182838956] [2022-11-21 17:08:14,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:14,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:08:14,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:08:14,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:08:14,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 17:08:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:15,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:08:15,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:08:15,053 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:08:15,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:08:15,080 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:08:15,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182838956] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:08:15,080 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:08:15,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-21 17:08:15,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003068944] [2022-11-21 17:08:15,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:08:15,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:08:15,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:15,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:08:15,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:08:15,083 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:15,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:15,168 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2022-11-21 17:08:15,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:08:15,169 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 22 [2022-11-21 17:08:15,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:15,170 INFO L225 Difference]: With dead ends: 71 [2022-11-21 17:08:15,170 INFO L226 Difference]: Without dead ends: 52 [2022-11-21 17:08:15,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:08:15,171 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 40 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:15,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 36 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:08:15,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-21 17:08:15,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-21 17:08:15,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 50 states have (on average 1.1) internal successors, (55), 51 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:15,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2022-11-21 17:08:15,186 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 22 [2022-11-21 17:08:15,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:15,187 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2022-11-21 17:08:15,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:15,188 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2022-11-21 17:08:15,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-21 17:08:15,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:15,192 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:08:15,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:08:15,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:08:15,392 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 17:08:15,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:15,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1055458943, now seen corresponding path program 2 times [2022-11-21 17:08:15,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:15,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429062394] [2022-11-21 17:08:15,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:15,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:15,566 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-21 17:08:15,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:15,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429062394] [2022-11-21 17:08:15,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429062394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:15,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:15,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:08:15,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069622499] [2022-11-21 17:08:15,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:15,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:08:15,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:15,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:08:15,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:08:15,569 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:15,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:15,597 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2022-11-21 17:08:15,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:08:15,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-11-21 17:08:15,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:15,599 INFO L225 Difference]: With dead ends: 60 [2022-11-21 17:08:15,600 INFO L226 Difference]: Without dead ends: 58 [2022-11-21 17:08:15,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:08:15,601 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:15,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 59 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:08:15,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-21 17:08:15,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-21 17:08:15,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 56 states have (on average 1.0892857142857142) internal successors, (61), 57 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:15,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2022-11-21 17:08:15,616 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 49 [2022-11-21 17:08:15,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:15,617 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2022-11-21 17:08:15,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:15,617 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2022-11-21 17:08:15,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-21 17:08:15,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:15,618 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:08:15,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:08:15,619 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 17:08:15,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:15,620 INFO L85 PathProgramCache]: Analyzing trace with hash 165021812, now seen corresponding path program 1 times [2022-11-21 17:08:15,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:15,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020172091] [2022-11-21 17:08:15,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:15,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:15,783 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-21 17:08:15,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:15,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020172091] [2022-11-21 17:08:15,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020172091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:15,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:15,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:08:15,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555902903] [2022-11-21 17:08:15,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:15,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:08:15,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:15,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:08:15,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:08:15,786 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:15,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:15,824 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2022-11-21 17:08:15,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:08:15,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-11-21 17:08:15,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:15,828 INFO L225 Difference]: With dead ends: 58 [2022-11-21 17:08:15,828 INFO L226 Difference]: Without dead ends: 57 [2022-11-21 17:08:15,828 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 [2022-11-21 17:08:15,829 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 5 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:15,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 52 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:08:15,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-21 17:08:15,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-21 17:08:15,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.0714285714285714) internal successors, (60), 56 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:15,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2022-11-21 17:08:15,837 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 55 [2022-11-21 17:08:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:15,837 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2022-11-21 17:08:15,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:15,838 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2022-11-21 17:08:15,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-21 17:08:15,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:15,839 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:08:15,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:08:15,839 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 17:08:15,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:15,840 INFO L85 PathProgramCache]: Analyzing trace with hash 820708982, now seen corresponding path program 1 times [2022-11-21 17:08:15,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:15,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006730570] [2022-11-21 17:08:15,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:15,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:16,061 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-21 17:08:16,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:16,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006730570] [2022-11-21 17:08:16,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006730570] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:08:16,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459777370] [2022-11-21 17:08:16,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:16,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:08:16,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:08:16,064 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:08:16,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 17:08:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:16,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 17:08:16,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:08:16,248 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-21 17:08:16,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:08:16,345 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-21 17:08:16,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459777370] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:08:16,345 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:08:16,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-21 17:08:16,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412420981] [2022-11-21 17:08:16,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:08:16,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:08:16,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:16,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:08:16,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:08:16,351 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:16,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:16,573 INFO L93 Difference]: Finished difference Result 153 states and 176 transitions. [2022-11-21 17:08:16,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 17:08:16,573 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-11-21 17:08:16,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:16,576 INFO L225 Difference]: With dead ends: 153 [2022-11-21 17:08:16,576 INFO L226 Difference]: Without dead ends: 111 [2022-11-21 17:08:16,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:08:16,579 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 118 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:16,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 51 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 17:08:16,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-21 17:08:16,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-11-21 17:08:16,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.0363636363636364) internal successors, (114), 110 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:16,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 114 transitions. [2022-11-21 17:08:16,609 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 114 transitions. Word has length 56 [2022-11-21 17:08:16,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:16,609 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 114 transitions. [2022-11-21 17:08:16,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:16,610 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 114 transitions. [2022-11-21 17:08:16,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-21 17:08:16,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:16,617 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:08:16,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 17:08:16,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:08:16,826 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 17:08:16,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:16,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1556905994, now seen corresponding path program 2 times [2022-11-21 17:08:16,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:16,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422602913] [2022-11-21 17:08:16,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:16,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:17,245 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-11-21 17:08:17,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:17,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422602913] [2022-11-21 17:08:17,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422602913] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:08:17,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259295052] [2022-11-21 17:08:17,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 17:08:17,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:08:17,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:08:17,247 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:08:17,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 17:08:17,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 17:08:17,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:08:17,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-21 17:08:17,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:08:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-11-21 17:08:17,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:08:17,779 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-11-21 17:08:17,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259295052] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:08:17,780 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:08:17,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-11-21 17:08:17,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213259314] [2022-11-21 17:08:17,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:08:17,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-21 17:08:17,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:17,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-21 17:08:17,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-11-21 17:08:17,782 INFO L87 Difference]: Start difference. First operand 111 states and 114 transitions. Second operand has 25 states, 25 states have (on average 3.48) internal successors, (87), 25 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:18,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:18,204 INFO L93 Difference]: Finished difference Result 297 states and 338 transitions. [2022-11-21 17:08:18,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-21 17:08:18,205 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.48) internal successors, (87), 25 states have internal predecessors, (87), 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 110 [2022-11-21 17:08:18,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:18,206 INFO L225 Difference]: With dead ends: 297 [2022-11-21 17:08:18,206 INFO L226 Difference]: Without dead ends: 219 [2022-11-21 17:08:18,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-11-21 17:08:18,208 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 246 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:18,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 69 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 17:08:18,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-11-21 17:08:18,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2022-11-21 17:08:18,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.018348623853211) internal successors, (222), 218 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:18,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 222 transitions. [2022-11-21 17:08:18,226 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 222 transitions. Word has length 110 [2022-11-21 17:08:18,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:18,226 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 222 transitions. [2022-11-21 17:08:18,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.48) internal successors, (87), 25 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:18,226 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 222 transitions. [2022-11-21 17:08:18,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-21 17:08:18,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:18,229 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:08:18,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 17:08:18,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-21 17:08:18,440 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 17:08:18,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:18,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1735193334, now seen corresponding path program 3 times [2022-11-21 17:08:18,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:18,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655787183] [2022-11-21 17:08:18,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:18,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2151 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 1436 trivial. 0 not checked. [2022-11-21 17:08:19,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:19,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655787183] [2022-11-21 17:08:19,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655787183] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:08:19,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921450062] [2022-11-21 17:08:19,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 17:08:19,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:08:19,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:08:19,760 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:08:19,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 17:08:19,889 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-21 17:08:19,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:08:19,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:08:19,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:08:19,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2151 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2022-11-21 17:08:19,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:08:19,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921450062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:19,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:08:19,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [25] total 27 [2022-11-21 17:08:19,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823603466] [2022-11-21 17:08:19,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:19,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:08:19,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:19,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:08:19,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=398, Unknown=0, NotChecked=0, Total=702 [2022-11-21 17:08:19,975 INFO L87 Difference]: Start difference. First operand 219 states and 222 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:20,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:20,008 INFO L93 Difference]: Finished difference Result 219 states and 222 transitions. [2022-11-21 17:08:20,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:08:20,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2022-11-21 17:08:20,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:20,013 INFO L225 Difference]: With dead ends: 219 [2022-11-21 17:08:20,013 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 17:08:20,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=308, Invalid=448, Unknown=0, NotChecked=0, Total=756 [2022-11-21 17:08:20,019 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:20,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 52 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:08:20,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 17:08:20,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 17:08:20,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:20,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 17:08:20,021 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 218 [2022-11-21 17:08:20,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:20,022 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:08:20,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:20,022 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 17:08:20,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 17:08:20,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-21 17:08:20,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-21 17:08:20,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-21 17:08:20,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-21 17:08:20,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-21 17:08:20,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-21 17:08:20,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-21 17:08:20,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-21 17:08:20,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 17:08:20,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:08:20,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 17:08:20,329 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-21 17:08:20,331 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 30) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-11-21 17:08:20,332 INFO L899 garLoopResultBuilder]: For program point L27-3(lines 27 30) no Hoare annotation was computed. [2022-11-21 17:08:20,332 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-11-21 17:08:20,332 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2022-11-21 17:08:20,332 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-21 17:08:20,332 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 17:08:20,333 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-11-21 17:08:20,333 INFO L899 garLoopResultBuilder]: For program point L32-2(lines 32 34) no Hoare annotation was computed. [2022-11-21 17:08:20,333 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 17:08:20,333 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-21 17:08:20,333 INFO L899 garLoopResultBuilder]: For program point L32-3(line 32) no Hoare annotation was computed. [2022-11-21 17:08:20,333 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 17:08:20,333 INFO L899 garLoopResultBuilder]: For program point L32-4(line 32) no Hoare annotation was computed. [2022-11-21 17:08:20,334 INFO L895 garLoopResultBuilder]: At program point L32-5(lines 32 34) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) [2022-11-21 17:08:20,335 INFO L899 garLoopResultBuilder]: For program point L32-6(lines 32 34) no Hoare annotation was computed. [2022-11-21 17:08:20,335 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-11-21 17:08:20,335 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2022-11-21 17:08:20,335 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-11-21 17:08:20,335 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 17:08:20,336 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-11-21 17:08:20,336 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2022-11-21 17:08:20,336 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-21 17:08:20,336 INFO L895 garLoopResultBuilder]: At program point L17-2(lines 17 20) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-11-21 17:08:20,336 INFO L899 garLoopResultBuilder]: For program point L17-3(lines 17 20) no Hoare annotation was computed. [2022-11-21 17:08:20,336 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-11-21 17:08:20,337 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-11-21 17:08:20,337 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2022-11-21 17:08:20,337 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-21 17:08:20,337 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 25) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-11-21 17:08:20,337 INFO L899 garLoopResultBuilder]: For program point L22-3(lines 22 25) no Hoare annotation was computed. [2022-11-21 17:08:20,337 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-21 17:08:20,338 INFO L902 garLoopResultBuilder]: At program point L35(lines 14 36) the Hoare annotation is: true [2022-11-21 17:08:20,342 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2022-11-21 17:08:20,344 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:08:20,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:08:20 BoogieIcfgContainer [2022-11-21 17:08:20,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:08:20,364 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:08:20,364 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:08:20,364 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:08:20,365 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:08:13" (3/4) ... [2022-11-21 17:08:20,367 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:08:20,378 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-21 17:08:20,378 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 17:08:20,378 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 17:08:20,378 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:08:20,413 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:08:20,413 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:08:20,414 INFO L158 Benchmark]: Toolchain (without parser) took 7551.92ms. Allocated memory was 146.8MB in the beginning and 180.4MB in the end (delta: 33.6MB). Free memory was 113.3MB in the beginning and 57.4MB in the end (delta: 55.9MB). Peak memory consumption was 90.8MB. Max. memory is 16.1GB. [2022-11-21 17:08:20,414 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 107.0MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:08:20,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.65ms. Allocated memory is still 146.8MB. Free memory was 113.3MB in the beginning and 102.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 17:08:20,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.96ms. Allocated memory is still 146.8MB. Free memory was 102.9MB in the beginning and 101.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:08:20,415 INFO L158 Benchmark]: Boogie Preprocessor took 23.66ms. Allocated memory is still 146.8MB. Free memory was 101.6MB in the beginning and 100.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:08:20,415 INFO L158 Benchmark]: RCFGBuilder took 290.94ms. Allocated memory is still 146.8MB. Free memory was 100.4MB in the beginning and 89.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 17:08:20,416 INFO L158 Benchmark]: TraceAbstraction took 6924.18ms. Allocated memory was 146.8MB in the beginning and 180.4MB in the end (delta: 33.6MB). Free memory was 88.7MB in the beginning and 60.5MB in the end (delta: 28.1MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2022-11-21 17:08:20,416 INFO L158 Benchmark]: Witness Printer took 49.28ms. Allocated memory is still 180.4MB. Free memory was 60.5MB in the beginning and 57.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:08:20,419 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 107.0MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.65ms. Allocated memory is still 146.8MB. Free memory was 113.3MB in the beginning and 102.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.96ms. Allocated memory is still 146.8MB. Free memory was 102.9MB in the beginning and 101.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.66ms. Allocated memory is still 146.8MB. Free memory was 101.6MB in the beginning and 100.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 290.94ms. Allocated memory is still 146.8MB. Free memory was 100.4MB in the beginning and 89.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6924.18ms. Allocated memory was 146.8MB in the beginning and 180.4MB in the end (delta: 33.6MB). Free memory was 88.7MB in the beginning and 60.5MB in the end (delta: 28.1MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. * Witness Printer took 49.28ms. Allocated memory is still 180.4MB. Free memory was 60.5MB in the beginning and 57.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 9, TraceHistogramMax: 22, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 459 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 459 mSDsluCounter, 401 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 240 mSDsCounter, 253 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 495 IncrementalHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 253 mSolverCounterUnsat, 161 mSDtfsCounter, 495 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 660 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=219occurred in iteration=8, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 76 NumberOfFragments, 31 HoareAnnotationTreeSize, 5 FomulaSimplifications, 533 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 943 NumberOfCodeBlocks, 754 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1114 ConstructedInterpolants, 0 QuantifiedInterpolants, 1608 SizeOfPredicates, 1 NumberOfNonLiveVariables, 755 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 4773/5995 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 <= i && 0 <= x + 2147483648 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-21 17:08:20,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbcdc12-86a2-4702-9e31-341e17ea6ff0/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE