./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/modulus-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/modulus-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 53bf165bfbef55aa8ab289084a5d3d80b8d81c13dbafd349815c35b63fd8829c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 07:03:03,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 07:03:03,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 07:03:03,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 07:03:03,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 07:03:03,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 07:03:03,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 07:03:03,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 07:03:03,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 07:03:03,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 07:03:03,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 07:03:03,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 07:03:03,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 07:03:03,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 07:03:03,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 07:03:03,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 07:03:03,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 07:03:03,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 07:03:03,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 07:03:03,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 07:03:03,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 07:03:03,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 07:03:03,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 07:03:03,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 07:03:03,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 07:03:03,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 07:03:03,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 07:03:03,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 07:03:03,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 07:03:03,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 07:03:03,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 07:03:03,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 07:03:03,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 07:03:03,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 07:03:03,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 07:03:03,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 07:03:03,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 07:03:03,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 07:03:03,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 07:03:03,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 07:03:03,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 07:03:03,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-11-25 07:03:03,671 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 07:03:03,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 07:03:03,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 07:03:03,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-25 07:03:03,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 07:03:03,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 07:03:03,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 07:03:03,675 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 07:03:03,675 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 07:03:03,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 07:03:03,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 07:03:03,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 07:03:03,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 07:03:03,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 07:03:03,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 07:03:03,678 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 07:03:03,678 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 07:03:03,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 07:03:03,678 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 07:03:03,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 07:03:03,679 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-25 07:03:03,679 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-25 07:03:03,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 07:03:03,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 07:03:03,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 07:03:03,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 07:03:03,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 07:03:03,680 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-25 07:03:03,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 07:03:03,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 07:03:03,682 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_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53bf165bfbef55aa8ab289084a5d3d80b8d81c13dbafd349815c35b63fd8829c [2021-11-25 07:03:04,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 07:03:04,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 07:03:04,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 07:03:04,043 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 07:03:04,043 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 07:03:04,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/../../sv-benchmarks/c/bitvector/modulus-1.i [2021-11-25 07:03:04,133 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/data/7051e7228/adc0666cf4bb46678d16b3de008e6aa0/FLAG78387ddfb [2021-11-25 07:03:04,695 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 07:03:04,699 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/sv-benchmarks/c/bitvector/modulus-1.i [2021-11-25 07:03:04,711 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/data/7051e7228/adc0666cf4bb46678d16b3de008e6aa0/FLAG78387ddfb [2021-11-25 07:03:05,131 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/data/7051e7228/adc0666cf4bb46678d16b3de008e6aa0 [2021-11-25 07:03:05,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 07:03:05,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 07:03:05,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 07:03:05,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 07:03:05,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 07:03:05,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:03:05" (1/1) ... [2021-11-25 07:03:05,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7d1379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:05, skipping insertion in model container [2021-11-25 07:03:05,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:03:05" (1/1) ... [2021-11-25 07:03:05,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 07:03:05,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 07:03:05,432 WARN L230 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_78eb30a5-749a-47a0-9ac4-0098805bd405/sv-benchmarks/c/bitvector/modulus-1.i[1252,1265] [2021-11-25 07:03:05,461 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 07:03:05,472 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 07:03:05,488 WARN L230 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_78eb30a5-749a-47a0-9ac4-0098805bd405/sv-benchmarks/c/bitvector/modulus-1.i[1252,1265] [2021-11-25 07:03:05,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 07:03:05,523 INFO L208 MainTranslator]: Completed translation [2021-11-25 07:03:05,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:05 WrapperNode [2021-11-25 07:03:05,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 07:03:05,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 07:03:05,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 07:03:05,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 07:03:05,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:05" (1/1) ... [2021-11-25 07:03:05,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:05" (1/1) ... [2021-11-25 07:03:05,571 INFO L137 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2021-11-25 07:03:05,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 07:03:05,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 07:03:05,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 07:03:05,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 07:03:05,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:05" (1/1) ... [2021-11-25 07:03:05,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:05" (1/1) ... [2021-11-25 07:03:05,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:05" (1/1) ... [2021-11-25 07:03:05,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:05" (1/1) ... [2021-11-25 07:03:05,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:05" (1/1) ... [2021-11-25 07:03:05,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:05" (1/1) ... [2021-11-25 07:03:05,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:05" (1/1) ... [2021-11-25 07:03:05,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 07:03:05,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 07:03:05,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 07:03:05,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 07:03:05,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:05" (1/1) ... [2021-11-25 07:03:05,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 07:03:05,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/z3 [2021-11-25 07:03:05,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-25 07:03:05,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-25 07:03:05,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 07:03:05,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 07:03:05,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 07:03:05,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 07:03:05,775 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 07:03:05,776 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 07:03:05,968 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 07:03:06,031 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 07:03:06,031 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-25 07:03:06,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:03:06 BoogieIcfgContainer [2021-11-25 07:03:06,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 07:03:06,035 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-25 07:03:06,035 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-25 07:03:06,058 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-25 07:03:06,058 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:03:06" (1/1) ... [2021-11-25 07:03:06,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 07:03:06,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:03:06,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-25 07:03:06,160 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-25 07:03:06,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 07:03:06,163 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:03:06,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:03:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:03:06,266 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 07:03:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:03:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:03:06,361 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 07:03:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:03:06,379 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-11-25 07:03:06,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 07:03:06 ImpRootNode [2021-11-25 07:03:06,405 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-25 07:03:06,405 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 07:03:06,406 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 07:03:06,406 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 07:03:06,406 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:03:06" (3/4) ... [2021-11-25 07:03:06,409 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-25 07:03:06,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 07:03:06,411 INFO L158 Benchmark]: Toolchain (without parser) took 1274.07ms. Allocated memory is still 88.1MB. Free memory was 48.4MB in the beginning and 37.6MB in the end (delta: 10.8MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-11-25 07:03:06,411 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory is still 65.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:03:06,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.57ms. Allocated memory is still 88.1MB. Free memory was 48.2MB in the beginning and 62.5MB in the end (delta: -14.3MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-11-25 07:03:06,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.89ms. Allocated memory is still 88.1MB. Free memory was 62.5MB in the beginning and 60.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:03:06,413 INFO L158 Benchmark]: Boogie Preprocessor took 42.90ms. Allocated memory is still 88.1MB. Free memory was 60.9MB in the beginning and 60.0MB in the end (delta: 897.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 07:03:06,414 INFO L158 Benchmark]: RCFGBuilder took 417.85ms. Allocated memory is still 88.1MB. Free memory was 59.8MB in the beginning and 48.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 07:03:06,415 INFO L158 Benchmark]: CodeCheck took 370.36ms. Allocated memory is still 88.1MB. Free memory was 48.8MB in the beginning and 38.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 07:03:06,415 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 88.1MB. Free memory was 38.0MB in the beginning and 37.6MB in the end (delta: 451.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:03:06,419 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 51]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of shiftLeft at line 51. Possible FailurePath: [L46] unsigned int n = __VERIFIER_nondet_uint(); [L47] unsigned int s = __VERIFIER_nondet_uint(); [L48] unsigned int d; [L49] unsigned int m; [L50] CALL assume_abort_if_not(s < 32) [L11] COND FALSE !(!cond) [L50] RET assume_abort_if_not(s < 32) [L51] 1 << s VAL [s=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory is still 65.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.57ms. Allocated memory is still 88.1MB. Free memory was 48.2MB in the beginning and 62.5MB in the end (delta: -14.3MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.89ms. Allocated memory is still 88.1MB. Free memory was 62.5MB in the beginning and 60.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.90ms. Allocated memory is still 88.1MB. Free memory was 60.9MB in the beginning and 60.0MB in the end (delta: 897.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 417.85ms. Allocated memory is still 88.1MB. Free memory was 59.8MB in the beginning and 48.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 370.36ms. Allocated memory is still 88.1MB. Free memory was 48.8MB in the beginning and 38.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 88.1MB. Free memory was 38.0MB in the beginning and 37.6MB in the end (delta: 451.0kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-25 07:03:06,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78eb30a5-749a-47a0-9ac4-0098805bd405/bin/ukojak-d1pc8ZmBRL/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample