./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark53_polynomial.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark53_polynomial.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX --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 ec88f7cebaba3213e4166875adad4a0a5cb4ac64fe627cad3d353321b6b32838 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:45:51,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:45:51,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:45:51,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:45:51,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:45:51,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:45:51,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:45:51,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:45:51,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:45:51,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:45:51,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:45:51,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:45:51,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:45:51,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:45:51,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:45:51,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:45:51,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:45:51,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:45:51,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:45:51,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:45:51,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:45:51,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:45:51,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:45:51,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:45:51,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:45:51,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:45:51,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:45:51,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:45:51,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:45:51,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:45:51,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:45:51,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:45:51,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:45:51,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:45:51,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:45:51,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:45:51,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:45:51,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:45:51,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:45:51,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:45:51,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:45:51,647 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-09 10:45:51,671 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:45:51,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:45:51,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:45:51,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:45:51,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:45:51,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:45:51,673 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:45:51,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:45:51,674 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:45:51,674 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 10:45:51,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:45:51,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:45:51,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:45:51,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 10:45:51,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 10:45:51,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 10:45:51,676 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-09 10:45:51,676 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:45:51,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:45:51,676 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:45:51,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 10:45:51,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:45:51,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:45:51,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 10:45:51,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:45:51,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:45:51,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 10:45:51,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 10:45:51,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:45:51,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 10:45:51,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 10:45:51,679 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:45:51,679 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_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec88f7cebaba3213e4166875adad4a0a5cb4ac64fe627cad3d353321b6b32838 [2021-11-09 10:45:51,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:45:51,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:45:51,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:45:51,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:45:51,936 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:45:51,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/loop-zilu/benchmark53_polynomial.i [2021-11-09 10:45:52,025 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/data/51612dc16/2b412d701ea44909a6347eee99dca501/FLAG5c48ac905 [2021-11-09 10:45:52,572 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:45:52,572 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/sv-benchmarks/c/loop-zilu/benchmark53_polynomial.i [2021-11-09 10:45:52,588 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/data/51612dc16/2b412d701ea44909a6347eee99dca501/FLAG5c48ac905 [2021-11-09 10:45:52,943 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/data/51612dc16/2b412d701ea44909a6347eee99dca501 [2021-11-09 10:45:52,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:45:52,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:45:52,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:45:52,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:45:52,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:45:52,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:45:52" (1/1) ... [2021-11-09 10:45:52,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cc31161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:52, skipping insertion in model container [2021-11-09 10:45:52,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:45:52" (1/1) ... [2021-11-09 10:45:52,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:45:52,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:45:53,169 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_27b58071-8b4b-4cad-a774-a4e88f59ed70/sv-benchmarks/c/loop-zilu/benchmark53_polynomial.i[872,885] [2021-11-09 10:45:53,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:45:53,186 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:45:53,199 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_27b58071-8b4b-4cad-a774-a4e88f59ed70/sv-benchmarks/c/loop-zilu/benchmark53_polynomial.i[872,885] [2021-11-09 10:45:53,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:45:53,217 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:45:53,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:53 WrapperNode [2021-11-09 10:45:53,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:45:53,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:45:53,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:45:53,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:45:53,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:53" (1/1) ... [2021-11-09 10:45:53,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:53" (1/1) ... [2021-11-09 10:45:53,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:45:53,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:45:53,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:45:53,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:45:53,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:53" (1/1) ... [2021-11-09 10:45:53,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:53" (1/1) ... [2021-11-09 10:45:53,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:53" (1/1) ... [2021-11-09 10:45:53,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:53" (1/1) ... [2021-11-09 10:45:53,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:53" (1/1) ... [2021-11-09 10:45:53,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:53" (1/1) ... [2021-11-09 10:45:53,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:53" (1/1) ... [2021-11-09 10:45:53,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:45:53,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:45:53,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:45:53,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:45:53,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:53" (1/1) ... [2021-11-09 10:45:53,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:45:53,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:53,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:53,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 10:45:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:45:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:45:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:45:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:45:53,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:45:53,609 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-09 10:45:53,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:45:53 BoogieIcfgContainer [2021-11-09 10:45:53,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:45:53,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 10:45:53,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 10:45:53,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 10:45:53,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:45:52" (1/3) ... [2021-11-09 10:45:53,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f16cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:45:53, skipping insertion in model container [2021-11-09 10:45:53,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:53" (2/3) ... [2021-11-09 10:45:53,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f16cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:45:53, skipping insertion in model container [2021-11-09 10:45:53,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:45:53" (3/3) ... [2021-11-09 10:45:53,620 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark53_polynomial.i [2021-11-09 10:45:53,625 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 10:45:53,626 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-11-09 10:45:53,692 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 10:45:53,715 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, mAutomataTypeConcurrency=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 [2021-11-09 10:45:53,716 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-11-09 10:45:53,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 23 states have (on average 1.826086956521739) internal successors, (42), 35 states have internal predecessors, (42), 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) [2021-11-09 10:45:53,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-09 10:45:53,753 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:45:53,770 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-09 10:45:53,770 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-09 10:45:53,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:53,776 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2021-11-09 10:45:53,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:53,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989806484] [2021-11-09 10:45:53,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:53,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:53,893 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:45:53,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808627678] [2021-11-09 10:45:53,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:53,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:45:53,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:53,897 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:45:53,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 10:45:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:53,985 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:54,033 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:54,036 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 10:45:54,037 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-09 10:45:54,039 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-09 10:45:54,039 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-09 10:45:54,040 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-09 10:45:54,040 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-09 10:45:54,040 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-09 10:45:54,041 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-09 10:45:54,041 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-09 10:45:54,046 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-09 10:45:54,047 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-09 10:45:54,047 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-09 10:45:54,048 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-09 10:45:54,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-09 10:45:54,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-09 10:45:54,277 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-09 10:45:54,280 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 10:45:54,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:45:54 BoogieIcfgContainer [2021-11-09 10:45:54,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 10:45:54,307 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 10:45:54,308 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 10:45:54,308 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 10:45:54,313 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:45:53" (3/4) ... [2021-11-09 10:45:54,316 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-09 10:45:54,363 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 10:45:54,363 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 10:45:54,366 INFO L168 Benchmark]: Toolchain (without parser) took 1415.17 ms. Allocated memory is still 142.6 MB. Free memory was 109.7 MB in the beginning and 87.5 MB in the end (delta: 22.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:54,366 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:45:54,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.84 ms. Allocated memory is still 142.6 MB. Free memory was 109.3 MB in the beginning and 118.2 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:54,368 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.25 ms. Allocated memory is still 142.6 MB. Free memory was 118.2 MB in the beginning and 116.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:54,369 INFO L168 Benchmark]: Boogie Preprocessor took 21.78 ms. Allocated memory is still 142.6 MB. Free memory was 116.5 MB in the beginning and 115.6 MB in the end (delta: 951.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:54,372 INFO L168 Benchmark]: RCFGBuilder took 333.67 ms. Allocated memory is still 142.6 MB. Free memory was 115.6 MB in the beginning and 105.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:54,374 INFO L168 Benchmark]: TraceAbstraction took 692.32 ms. Allocated memory is still 142.6 MB. Free memory was 104.3 MB in the beginning and 89.1 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:54,375 INFO L168 Benchmark]: Witness Printer took 56.26 ms. Allocated memory is still 142.6 MB. Free memory was 89.1 MB in the beginning and 87.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:54,382 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 88.1 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.84 ms. Allocated memory is still 142.6 MB. Free memory was 109.3 MB in the beginning and 118.2 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.25 ms. Allocated memory is still 142.6 MB. Free memory was 118.2 MB in the beginning and 116.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.78 ms. Allocated memory is still 142.6 MB. Free memory was 116.5 MB in the beginning and 115.6 MB in the end (delta: 951.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 333.67 ms. Allocated memory is still 142.6 MB. Free memory was 115.6 MB in the beginning and 105.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 692.32 ms. Allocated memory is still 142.6 MB. Free memory was 104.3 MB in the beginning and 89.1 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 56.26 ms. Allocated memory is still 142.6 MB. Free memory was 89.1 MB in the beginning and 87.8 MB in the end (delta: 1.3 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] x*y - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 28]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 28]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate proved your program to be incorrect! [2021-11-09 10:45:54,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b58071-8b4b-4cad-a774-a4e88f59ed70/bin/uautomizer-IVEQpCNsaX/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)