./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt --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 ee88e8123d344a14970849fa456c02e35e9325dc .............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:22:24,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:22:24,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:22:25,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:22:25,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:22:25,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:22:25,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:22:25,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:22:25,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:22:25,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:22:25,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:22:25,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:22:25,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:22:25,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:22:25,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:22:25,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:22:25,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:22:25,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:22:25,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:22:25,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:22:25,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:22:25,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:22:25,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:22:25,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:22:25,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:22:25,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:22:25,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:22:25,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:22:25,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:22:25,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:22:25,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:22:25,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:22:25,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:22:25,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:22:25,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:22:25,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:22:25,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:22:25,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:22:25,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:22:25,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:22:25,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:22:25,148 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-13 00:22:25,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:22:25,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:22:25,203 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:22:25,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:22:25,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:22:25,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:22:25,213 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:22:25,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:22:25,214 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:22:25,214 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:22:25,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:22:25,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:22:25,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:22:25,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:22:25,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:22:25,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:22:25,217 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 00:22:25,218 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:22:25,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:22:25,218 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:22:25,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:22:25,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:22:25,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:22:25,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:22:25,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:22:25,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:22:25,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:22:25,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:22:25,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:22:25,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:22:25,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:22:25,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:22:25,225 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_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee88e8123d344a14970849fa456c02e35e9325dc [2021-10-13 00:22:25,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:22:25,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:22:25,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:22:25,629 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:22:25,630 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:22:25,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i [2021-10-13 00:22:25,717 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/data/665038d27/d905965601f049bb9b1b0be3c79f409c/FLAG2ead6b3e4 [2021-10-13 00:22:26,313 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:22:26,314 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i [2021-10-13 00:22:26,329 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/data/665038d27/d905965601f049bb9b1b0be3c79f409c/FLAG2ead6b3e4 [2021-10-13 00:22:26,646 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/data/665038d27/d905965601f049bb9b1b0be3c79f409c [2021-10-13 00:22:26,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:22:26,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:22:26,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:22:26,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:22:26,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:22:26,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:22:26" (1/1) ... [2021-10-13 00:22:26,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e06fa47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:26, skipping insertion in model container [2021-10-13 00:22:26,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:22:26" (1/1) ... [2021-10-13 00:22:26,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:22:26,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:22:26,960 WARN L228 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_607bf674-4f8e-497d-93f3-c5b29fd3f311/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i[873,886] [2021-10-13 00:22:26,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:22:26,979 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:22:26,995 WARN L228 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_607bf674-4f8e-497d-93f3-c5b29fd3f311/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i[873,886] [2021-10-13 00:22:26,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:22:27,019 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:22:27,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:27 WrapperNode [2021-10-13 00:22:27,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:22:27,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:22:27,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:22:27,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:22:27,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:27" (1/1) ... [2021-10-13 00:22:27,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:27" (1/1) ... [2021-10-13 00:22:27,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:22:27,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:22:27,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:22:27,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:22:27,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:27" (1/1) ... [2021-10-13 00:22:27,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:27" (1/1) ... [2021-10-13 00:22:27,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:27" (1/1) ... [2021-10-13 00:22:27,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:27" (1/1) ... [2021-10-13 00:22:27,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:27" (1/1) ... [2021-10-13 00:22:27,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:27" (1/1) ... [2021-10-13 00:22:27,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:27" (1/1) ... [2021-10-13 00:22:27,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:22:27,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:22:27,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:22:27,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:22:27,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:27" (1/1) ... [2021-10-13 00:22:27,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:22:27,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:27,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:27,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:22:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:22:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:22:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:22:27,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:22:27,542 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:22:27,556 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 00:22:27,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:22:27 BoogieIcfgContainer [2021-10-13 00:22:27,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:22:27,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:22:27,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:22:27,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:22:27,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:22:26" (1/3) ... [2021-10-13 00:22:27,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eaf3bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:22:27, skipping insertion in model container [2021-10-13 00:22:27,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:27" (2/3) ... [2021-10-13 00:22:27,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eaf3bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:22:27, skipping insertion in model container [2021-10-13 00:22:27,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:22:27" (3/3) ... [2021-10-13 00:22:27,573 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark43_conjunctive.i [2021-10-13 00:22:27,588 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:22:27,588 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-13 00:22:27,663 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:22:27,685 INFO L339 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, mConcurrency=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:22:27,686 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-13 00:22:27,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:22:27,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 00:22:27,714 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:22:27,715 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 00:22:27,716 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:22:27,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:27,724 INFO L82 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2021-10-13 00:22:27,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:27,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797133170] [2021-10-13 00:22:27,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:27,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:28,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:28,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:22:28,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797133170] [2021-10-13 00:22:28,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797133170] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:22:28,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:22:28,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:22:28,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397467784] [2021-10-13 00:22:28,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:22:28,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:22:28,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:22:28,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:22:28,075 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-13 00:22:28,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:28,144 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2021-10-13 00:22:28,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:22:28,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-10-13 00:22:28,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:22:28,156 INFO L225 Difference]: With dead ends: 31 [2021-10-13 00:22:28,156 INFO L226 Difference]: Without dead ends: 12 [2021-10-13 00:22:28,160 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:22:28,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-13 00:22:28,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-10-13 00:22:28,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:22:28,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-13 00:22:28,196 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 5 [2021-10-13 00:22:28,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:22:28,197 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-13 00:22:28,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-13 00:22:28,198 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-13 00:22:28,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 00:22:28,198 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:22:28,199 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:22:28,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:22:28,200 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:22:28,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:28,201 INFO L82 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2021-10-13 00:22:28,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:28,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38761219] [2021-10-13 00:22:28,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:28,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:28,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:28,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:22:28,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38761219] [2021-10-13 00:22:28,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38761219] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:22:28,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:22:28,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:22:28,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280632715] [2021-10-13 00:22:28,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:22:28,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:22:28,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:22:28,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:22:28,291 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:22:28,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:28,302 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-10-13 00:22:28,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:22:28,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-13 00:22:28,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:22:28,304 INFO L225 Difference]: With dead ends: 11 [2021-10-13 00:22:28,304 INFO L226 Difference]: Without dead ends: 10 [2021-10-13 00:22:28,305 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:22:28,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-13 00:22:28,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-13 00:22:28,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:22:28,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 00:22:28,308 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2021-10-13 00:22:28,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:22:28,309 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 00:22:28,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:22:28,309 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 00:22:28,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:22:28,310 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:22:28,310 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:28,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:22:28,311 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:22:28,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:28,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2021-10-13 00:22:28,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:28,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475195264] [2021-10-13 00:22:28,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:28,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:28,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:28,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:22:28,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475195264] [2021-10-13 00:22:28,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475195264] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:22:28,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:22:28,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:22:28,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618739659] [2021-10-13 00:22:28,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:22:28,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:22:28,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:22:28,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:22:28,397 INFO L87 Difference]: Start difference. First operand 10 states and 10 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) [2021-10-13 00:22:28,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:28,428 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-10-13 00:22:28,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:22:28,429 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 [2021-10-13 00:22:28,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:22:28,430 INFO L225 Difference]: With dead ends: 11 [2021-10-13 00:22:28,430 INFO L226 Difference]: Without dead ends: 10 [2021-10-13 00:22:28,430 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:22:28,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-13 00:22:28,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2021-10-13 00:22:28,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-10-13 00:22:28,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-10-13 00:22:28,433 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2021-10-13 00:22:28,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:22:28,434 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-10-13 00:22:28,434 INFO L471 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) [2021-10-13 00:22:28,435 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-10-13 00:22:28,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 00:22:28,435 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:22:28,435 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:28,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:22:28,436 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:22:28,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:28,437 INFO L82 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2021-10-13 00:22:28,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:28,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456461951] [2021-10-13 00:22:28,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:28,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:28,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:28,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:22:28,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456461951] [2021-10-13 00:22:28,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456461951] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:22:28,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:22:28,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:22:28,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36718832] [2021-10-13 00:22:28,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:22:28,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:22:28,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:22:28,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:22:28,526 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:22:28,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:28,544 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-10-13 00:22:28,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:22:28,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 00:22:28,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:22:28,546 INFO L225 Difference]: With dead ends: 9 [2021-10-13 00:22:28,546 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:22:28,547 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:22:28,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:22:28,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:22:28,548 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) [2021-10-13 00:22:28,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:22:28,548 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-10-13 00:22:28,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:22:28,548 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:22:28,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:22:28,549 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:22:28,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:22:28,552 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:22:28,553 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:22:28,553 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:22:28,554 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:22:28,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:22:28,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:22:28,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:22:28,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:22:28,591 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-13 00:22:28,591 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:22:28,591 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-13 00:22:28,592 INFO L857 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-10-13 00:22:28,592 INFO L857 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-10-13 00:22:28,593 INFO L853 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (and (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648)) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) [2021-10-13 00:22:28,593 INFO L857 garLoopResultBuilder]: For program point L23-3(lines 23 26) no Hoare annotation was computed. [2021-10-13 00:22:28,594 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-10-13 00:22:28,594 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:22:28,595 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-13 00:22:28,595 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-13 00:22:28,595 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:22:28,595 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:22:28,596 INFO L860 garLoopResultBuilder]: At program point L28(lines 19 29) the Hoare annotation is: true [2021-10-13 00:22:28,596 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-10-13 00:22:28,597 INFO L857 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-10-13 00:22:28,597 INFO L857 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-10-13 00:22:28,597 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-10-13 00:22:28,604 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:22:28,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:22:28 BoogieIcfgContainer [2021-10-13 00:22:28,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:22:28,641 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:22:28,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:22:28,643 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:22:28,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:22:27" (3/4) ... [2021-10-13 00:22:28,647 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:22:28,661 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-13 00:22:28,661 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 00:22:28,662 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:22:28,663 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:22:28,729 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:22:28,730 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:22:28,732 INFO L168 Benchmark]: Toolchain (without parser) took 2065.24 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 62.2 MB in the beginning and 97.7 MB in the end (delta: -35.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:22:28,733 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 78.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:22:28,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.85 ms. Allocated memory is still 102.8 MB. Free memory was 62.1 MB in the beginning and 78.5 MB in the end (delta: -16.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:22:28,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.53 ms. Allocated memory is still 102.8 MB. Free memory was 78.2 MB in the beginning and 76.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:22:28,735 INFO L168 Benchmark]: Boogie Preprocessor took 40.51 ms. Allocated memory is still 102.8 MB. Free memory was 76.8 MB in the beginning and 75.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:22:28,736 INFO L168 Benchmark]: RCFGBuilder took 445.95 ms. Allocated memory is still 102.8 MB. Free memory was 75.7 MB in the beginning and 66.8 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:22:28,740 INFO L168 Benchmark]: TraceAbstraction took 1077.07 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 66.4 MB in the beginning and 100.5 MB in the end (delta: -34.1 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:22:28,740 INFO L168 Benchmark]: Witness Printer took 88.28 ms. Allocated memory is still 123.7 MB. Free memory was 100.5 MB in the beginning and 97.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:22:28,744 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 78.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 353.85 ms. Allocated memory is still 102.8 MB. Free memory was 62.1 MB in the beginning and 78.5 MB in the end (delta: -16.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.53 ms. Allocated memory is still 102.8 MB. Free memory was 78.2 MB in the beginning and 76.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.51 ms. Allocated memory is still 102.8 MB. Free memory was 76.8 MB in the beginning and 75.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 445.95 ms. Allocated memory is still 102.8 MB. Free memory was 75.7 MB in the beginning and 66.8 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1077.07 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 66.4 MB in the beginning and 100.5 MB in the end (delta: -34.1 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. * Witness Printer took 88.28 ms. Allocated memory is still 123.7 MB. Free memory was 100.5 MB in the beginning and 97.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: 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, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 942.8ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 14.1ms, AutomataDifference: 193.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 35.4ms, InitialAbstractionConstructionTime: 16.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 29 SDtfs, 14 SDslu, 12 SDs, 0 SdLazy, 25 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 79.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 25.9ms AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 18.0ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 6.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 28.6ms SsaConstructionTime, 99.3ms SatisfiabilityAnalysisTime, 296.5ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 4 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 <= y + 2147483648 && 0 <= x + 2147483648 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 00:22:28,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607bf674-4f8e-497d-93f3-c5b29fd3f311/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...