./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a4e999359b895f3090fa3a0a394d4e8b87ebbe801b1ab5ed9c028edec94c7c83 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:23:01,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:23:01,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:23:01,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:23:01,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:23:01,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:23:01,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:23:01,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:23:01,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:23:01,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:23:01,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:23:01,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:23:01,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:23:01,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:23:01,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:23:01,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:23:01,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:23:01,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:23:01,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:23:01,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:23:01,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:23:01,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:23:01,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:23:01,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:23:01,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:23:01,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:23:01,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:23:01,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:23:01,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:23:01,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:23:01,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:23:01,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:23:01,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:23:01,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:23:01,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:23:01,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:23:01,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:23:01,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:23:01,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:23:01,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:23:01,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:23:01,565 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:23:01,601 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:23:01,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:23:01,603 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:23:01,603 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:23:01,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:23:01,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:23:01,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:23:01,605 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:23:01,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:23:01,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:23:01,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:23:01,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:23:01,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:23:01,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:23:01,613 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:23:01,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:23:01,613 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:23:01,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:23:01,614 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:23:01,614 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:23:01,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:23:01,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:23:01,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:23:01,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:23:01,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:23:01,616 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:23:01,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:23:01,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:23:01,616 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_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4e999359b895f3090fa3a0a394d4e8b87ebbe801b1ab5ed9c028edec94c7c83 [2021-11-23 00:23:01,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:23:01,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:23:01,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:23:01,879 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:23:01,880 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:23:01,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c [2021-11-23 00:23:01,965 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/data/5eaa2fdcc/8b4f61ea7b6a436bac7b1cac63d6cd30/FLAGd6755743c [2021-11-23 00:23:02,508 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:23:02,509 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c [2021-11-23 00:23:02,524 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/data/5eaa2fdcc/8b4f61ea7b6a436bac7b1cac63d6cd30/FLAGd6755743c [2021-11-23 00:23:02,875 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/data/5eaa2fdcc/8b4f61ea7b6a436bac7b1cac63d6cd30 [2021-11-23 00:23:02,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:23:02,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:23:02,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:23:02,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:23:02,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:23:02,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:23:02" (1/1) ... [2021-11-23 00:23:02,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0eac6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:02, skipping insertion in model container [2021-11-23 00:23:02,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:23:02" (1/1) ... [2021-11-23 00:23:02,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:23:02,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:23:03,099 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_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c[535,548] [2021-11-23 00:23:03,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:23:03,133 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:23:03,145 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_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c[535,548] [2021-11-23 00:23:03,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:23:03,175 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:23:03,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:03 WrapperNode [2021-11-23 00:23:03,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:23:03,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:23:03,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:23:03,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:23:03,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:03" (1/1) ... [2021-11-23 00:23:03,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:03" (1/1) ... [2021-11-23 00:23:03,218 INFO L137 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2021-11-23 00:23:03,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:23:03,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:23:03,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:23:03,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:23:03,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:03" (1/1) ... [2021-11-23 00:23:03,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:03" (1/1) ... [2021-11-23 00:23:03,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:03" (1/1) ... [2021-11-23 00:23:03,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:03" (1/1) ... [2021-11-23 00:23:03,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:03" (1/1) ... [2021-11-23 00:23:03,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:03" (1/1) ... [2021-11-23 00:23:03,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:03" (1/1) ... [2021-11-23 00:23:03,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:23:03,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:23:03,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:23:03,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:23:03,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:03" (1/1) ... [2021-11-23 00:23:03,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:23:03,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:23:03,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:23:03,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:23:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:23:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 00:23:03,347 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 00:23:03,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:23:03,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:23:03,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:23:03,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:23:03,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:23:03,415 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:23:03,417 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:23:03,557 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:23:03,575 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:23:03,575 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 00:23:03,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:03 BoogieIcfgContainer [2021-11-23 00:23:03,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:23:03,579 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:23:03,579 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:23:03,589 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:23:03,589 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:03" (1/1) ... [2021-11-23 00:23:03,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:23:03,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:03,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2021-11-23 00:23:03,653 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2021-11-23 00:23:03,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:23:03,658 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:03,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:03,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 00:23:03,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:03,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:23:03,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:03,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2021-11-23 00:23:03,850 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2021-11-23 00:23:03,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 00:23:03,850 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:03,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:03,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 00:23:03,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:04,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:23:04,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:04,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 40 transitions. [2021-11-23 00:23:04,153 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2021-11-23 00:23:04,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 00:23:04,154 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:04,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:04,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:23:04,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:04,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:23:06,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 00:23:06,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:06,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 34 states and 52 transitions. [2021-11-23 00:23:06,894 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2021-11-23 00:23:06,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 00:23:06,899 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:06,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:06,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 00:23:06,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:07,530 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:23:09,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:09,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 38 states and 61 transitions. [2021-11-23 00:23:09,022 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2021-11-23 00:23:09,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 00:23:09,023 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:09,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:09,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:23:09,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:09,202 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:23:15,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:15,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 48 states and 83 transitions. [2021-11-23 00:23:15,601 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2021-11-23 00:23:15,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 00:23:15,603 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:15,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:15,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 00:23:15,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:15,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:23:16,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:16,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 50 states and 90 transitions. [2021-11-23 00:23:16,061 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 90 transitions. [2021-11-23 00:23:16,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 00:23:16,063 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:16,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:23:16,090 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:23:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:23:16,120 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2021-11-23 00:23:16,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:23:16 ImpRootNode [2021-11-23 00:23:16,152 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:23:16,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:23:16,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:23:16,153 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:23:16,153 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:03" (3/4) ... [2021-11-23 00:23:16,155 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:23:16,267 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:23:16,268 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:23:16,269 INFO L158 Benchmark]: Toolchain (without parser) took 13388.90ms. Allocated memory is still 144.7MB. Free memory was 111.3MB in the beginning and 83.3MB in the end (delta: 28.0MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2021-11-23 00:23:16,270 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 96.5MB. Free memory was 50.6MB in the beginning and 50.6MB in the end (delta: 46.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:23:16,271 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.77ms. Allocated memory is still 144.7MB. Free memory was 111.0MB in the beginning and 119.7MB in the end (delta: -8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:23:16,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.63ms. Allocated memory is still 144.7MB. Free memory was 119.7MB in the beginning and 118.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:23:16,273 INFO L158 Benchmark]: Boogie Preprocessor took 40.01ms. Allocated memory is still 144.7MB. Free memory was 118.0MB in the beginning and 117.0MB in the end (delta: 974.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:23:16,274 INFO L158 Benchmark]: RCFGBuilder took 317.01ms. Allocated memory is still 144.7MB. Free memory was 116.6MB in the beginning and 105.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:23:16,275 INFO L158 Benchmark]: CodeCheck took 12573.34ms. Allocated memory is still 144.7MB. Free memory was 105.7MB in the beginning and 86.4MB in the end (delta: 19.3MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2021-11-23 00:23:16,276 INFO L158 Benchmark]: Witness Printer took 115.44ms. Allocated memory is still 144.7MB. Free memory was 86.4MB in the beginning and 83.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:23:16,281 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 3 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.5s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 346 SdHoareTripleChecker+Valid, 10.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 270 SdHoareTripleChecker+Invalid, 10.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 177 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 516 IncrementalHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 177 mSolverCounterUnsat, 196 mSDtfsCounter, 516 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 943 GetRequests, 868 SyntacticMatches, 3 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1628 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 6 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 17/18 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 - CounterExampleResult [Line: 14]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int counter = 0; [L21] int A, R; [L22] long long u, v, r; [L23] A = __VERIFIER_nondet_int() [L24] R = __VERIFIER_nondet_int() [L25] CALL assume_abort_if_not((((long long) R - 1) * ((long long) R - 1)) < A) VAL [\old(cond)=1, counter=0] [L9] COND FALSE !(!cond) [L25] RET assume_abort_if_not((((long long) R - 1) * ((long long) R - 1)) < A) VAL [A=3, counter=0, R=2] [L27] CALL assume_abort_if_not(A % 2 == 1) VAL [\old(cond)=1, counter=0] [L9] COND FALSE !(!cond) [L27] RET assume_abort_if_not(A % 2 == 1) VAL [A=3, counter=0, R=2] [L29] u = ((long long) 2 * R) + 1 [L30] v = 1 [L31] r = ((long long) R * R) - A VAL [A=3, counter=0, r=1, R=2, u=5, v=1] [L34] EXPR counter++ VAL [A=3, counter=1, counter++=0, R=2, r=1, u=5, v=1] [L34] COND TRUE counter++<1 [L35] CALL __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) VAL [\old(cond)=1, counter=1] [L12] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L35] RET __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) VAL [A=3, counter=1, R=2, r=1, u=5, v=1] [L36] COND FALSE !(!(r != 0)) VAL [A=3, counter=1, r=1, R=2, u=5, v=1] [L39] EXPR counter++ VAL [A=3, counter=2, counter++=1, r=1, R=2, u=5, v=1] [L39] COND FALSE !(counter++<1) [L47] EXPR counter++ VAL [A=3, counter=3, counter++=2, r=1, R=2, u=5, v=1] [L47] COND FALSE !(counter++<1) [L34] EXPR counter++ VAL [A=3, counter=4, counter++=3, r=1, R=2, u=5, v=1] [L34] COND FALSE !(counter++<1) [L56] CALL __VERIFIER_assert(((long long) 4*A) == u*u - v*v - 2*u + 2*v) VAL [\old(cond)=0, counter=4] [L12] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=4] [L14] reach_error() VAL [\old(cond)=0, cond=0, counter=4] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 96.5MB. Free memory was 50.6MB in the beginning and 50.6MB in the end (delta: 46.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.77ms. Allocated memory is still 144.7MB. Free memory was 111.0MB in the beginning and 119.7MB in the end (delta: -8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.63ms. Allocated memory is still 144.7MB. Free memory was 119.7MB in the beginning and 118.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.01ms. Allocated memory is still 144.7MB. Free memory was 118.0MB in the beginning and 117.0MB in the end (delta: 974.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 317.01ms. Allocated memory is still 144.7MB. Free memory was 116.6MB in the beginning and 105.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 12573.34ms. Allocated memory is still 144.7MB. Free memory was 105.7MB in the beginning and 86.4MB in the end (delta: 19.3MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Witness Printer took 115.44ms. Allocated memory is still 144.7MB. Free memory was 86.4MB in the beginning and 83.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 00:23:16,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad29f45-95fa-4ae7-8aed-3b64726aef1e/bin/ukojak-LBtLqBUTdQ/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE