./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB --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 2e94830d11d546a3c5eb98e6802b079c63f07b0a4b705dd9e7cd9e09e0492555 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:30:19,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:30:19,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:30:19,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:30:19,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:30:19,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:30:19,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:30:19,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:30:19,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:30:19,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:30:19,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:30:19,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:30:19,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:30:19,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:30:19,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:30:19,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:30:19,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:30:19,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:30:19,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:30:19,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:30:19,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:30:19,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:30:19,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:30:19,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:30:19,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:30:19,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:30:19,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:30:19,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:30:19,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:30:19,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:30:19,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:30:19,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:30:19,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:30:19,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:30:19,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:30:19,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:30:19,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:30:19,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:30:19,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:30:19,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:30:19,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:30:19,348 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:30:19,380 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:30:19,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:30:19,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:30:19,382 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:30:19,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:30:19,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:30:19,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:30:19,383 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:30:19,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:30:19,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:30:19,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:30:19,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:30:19,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:30:19,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:30:19,385 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:30:19,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:30:19,385 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:30:19,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:30:19,386 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:30:19,386 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:30:19,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:30:19,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:30:19,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:30:19,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:30:19,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:30:19,388 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:30:19,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:30:19,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:30:19,388 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_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e94830d11d546a3c5eb98e6802b079c63f07b0a4b705dd9e7cd9e09e0492555 [2022-10-17 16:30:19,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:30:19,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:30:19,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:30:19,705 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:30:19,707 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:30:19,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2022-10-17 16:30:19,813 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/data/2486d9709/6558f023696a4902ae44944cca4c912d/FLAG7ad317df2 [2022-10-17 16:30:20,321 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:30:20,322 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2022-10-17 16:30:20,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/data/2486d9709/6558f023696a4902ae44944cca4c912d/FLAG7ad317df2 [2022-10-17 16:30:20,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/data/2486d9709/6558f023696a4902ae44944cca4c912d [2022-10-17 16:30:20,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:30:20,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:30:20,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:30:20,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:30:20,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:30:20,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:30:20" (1/1) ... [2022-10-17 16:30:20,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aba1ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:20, skipping insertion in model container [2022-10-17 16:30:20,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:30:20" (1/1) ... [2022-10-17 16:30:20,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:30:20,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:30:20,875 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_950ebde2-4d54-43d4-bb56-234a593862b9/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2022-10-17 16:30:20,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:30:20,905 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:30:20,922 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_950ebde2-4d54-43d4-bb56-234a593862b9/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2022-10-17 16:30:20,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:30:20,945 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:30:20,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:20 WrapperNode [2022-10-17 16:30:20,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:30:20,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:30:20,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:30:20,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:30:20,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:20" (1/1) ... [2022-10-17 16:30:20,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:20" (1/1) ... [2022-10-17 16:30:21,007 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2022-10-17 16:30:21,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:30:21,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:30:21,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:30:21,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:30:21,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:20" (1/1) ... [2022-10-17 16:30:21,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:20" (1/1) ... [2022-10-17 16:30:21,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:20" (1/1) ... [2022-10-17 16:30:21,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:20" (1/1) ... [2022-10-17 16:30:21,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:20" (1/1) ... [2022-10-17 16:30:21,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:20" (1/1) ... [2022-10-17 16:30:21,028 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:20" (1/1) ... [2022-10-17 16:30:21,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:20" (1/1) ... [2022-10-17 16:30:21,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:30:21,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:30:21,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:30:21,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:30:21,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:20" (1/1) ... [2022-10-17 16:30:21,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:30:21,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:30:21,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:30:21,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:30:21,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:30:21,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:30:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:30:21,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:30:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:30:21,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:30:21,190 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:30:21,192 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:30:21,321 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:30:21,369 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:30:21,369 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:30:21,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:30:21 BoogieIcfgContainer [2022-10-17 16:30:21,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:30:21,375 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:30:21,384 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:30:21,392 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:30:21,393 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:30:21" (1/1) ... [2022-10-17 16:30:21,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:30:21,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:21,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2022-10-17 16:30:21,475 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2022-10-17 16:30:21,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:30:21,477 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:21,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:21,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:30:22,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:22,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2022-10-17 16:30:22,206 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2022-10-17 16:30:22,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:30:22,211 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:22,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:22,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:30:22,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:22,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:30:22,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:22,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 24 states and 40 transitions. [2022-10-17 16:30:22,708 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 40 transitions. [2022-10-17 16:30:22,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 16:30:22,709 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:22,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:22,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:30:22,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:22,875 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:30:23,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:23,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 26 states and 45 transitions. [2022-10-17 16:30:23,019 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 45 transitions. [2022-10-17 16:30:23,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 16:30:23,021 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:23,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:23,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:30:23,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:23,214 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:30:23,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:23,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 28 states and 47 transitions. [2022-10-17 16:30:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2022-10-17 16:30:23,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:30:23,703 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:23,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:23,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:30:23,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:23,858 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:30:24,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:24,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 52 transitions. [2022-10-17 16:30:24,114 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2022-10-17 16:30:24,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 16:30:24,116 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:24,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:24,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:30:24,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:24,242 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-17 16:30:24,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 55 transitions. [2022-10-17 16:30:24,516 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2022-10-17 16:30:24,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-17 16:30:24,518 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:24,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:24,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 16:30:24,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:24,705 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 16:30:25,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:25,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 57 transitions. [2022-10-17 16:30:25,038 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2022-10-17 16:30:25,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-17 16:30:25,040 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:25,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:25,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:30:25,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:25,275 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-17 16:30:25,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:25,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 56 transitions. [2022-10-17 16:30:25,916 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2022-10-17 16:30:25,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-17 16:30:25,917 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:25,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:25,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:30:25,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:26,050 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-17 16:30:26,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:26,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 60 transitions. [2022-10-17 16:30:26,392 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 60 transitions. [2022-10-17 16:30:26,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-17 16:30:26,394 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:26,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:26,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:30:26,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:26,472 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-17 16:30:26,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:26,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 36 states and 61 transitions. [2022-10-17 16:30:26,618 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 61 transitions. [2022-10-17 16:30:26,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-17 16:30:26,619 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:26,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:26,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 16:30:26,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:26,764 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-17 16:30:27,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:27,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 39 states and 67 transitions. [2022-10-17 16:30:27,135 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 67 transitions. [2022-10-17 16:30:27,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 16:30:27,137 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:27,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:27,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:30:27,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:27,219 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-10-17 16:30:27,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:27,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 39 states and 66 transitions. [2022-10-17 16:30:27,305 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 66 transitions. [2022-10-17 16:30:27,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-17 16:30:27,310 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:27,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:27,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-17 16:30:27,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:27,543 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-17 16:30:27,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:27,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 68 transitions. [2022-10-17 16:30:27,967 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2022-10-17 16:30:27,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-17 16:30:27,968 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:27,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:28,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 16:30:28,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-10-17 16:30:28,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:28,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 41 states and 72 transitions. [2022-10-17 16:30:28,535 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 72 transitions. [2022-10-17 16:30:28,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-17 16:30:28,536 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:28,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:28,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:30:28,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:28,611 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 41 proven. 7 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2022-10-17 16:30:28,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:28,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 42 states and 73 transitions. [2022-10-17 16:30:28,789 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 73 transitions. [2022-10-17 16:30:28,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-17 16:30:28,790 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:28,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:28,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-17 16:30:28,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:29,003 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-10-17 16:30:29,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:29,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 45 states and 79 transitions. [2022-10-17 16:30:29,446 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 79 transitions. [2022-10-17 16:30:29,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-17 16:30:29,446 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:29,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:29,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:30:29,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:29,529 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-10-17 16:30:29,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:29,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 45 states and 78 transitions. [2022-10-17 16:30:29,610 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 78 transitions. [2022-10-17 16:30:29,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-17 16:30:29,611 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:29,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:29,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-17 16:30:29,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:29,943 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 20 proven. 24 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-10-17 16:30:30,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:30,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 46 states and 80 transitions. [2022-10-17 16:30:30,521 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 80 transitions. [2022-10-17 16:30:30,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-17 16:30:30,522 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:30,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:30,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-17 16:30:30,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:30,799 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-10-17 16:30:31,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:31,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 47 states and 84 transitions. [2022-10-17 16:30:31,254 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 84 transitions. [2022-10-17 16:30:31,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-17 16:30:31,256 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:31,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:31,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:30:31,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 59 proven. 7 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-10-17 16:30:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:31,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 48 states and 85 transitions. [2022-10-17 16:30:31,507 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2022-10-17 16:30:31,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-17 16:30:31,509 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:31,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:31,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-17 16:30:31,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:32,153 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 47 proven. 15 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-10-17 16:30:33,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:33,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 36 states and 53 transitions. [2022-10-17 16:30:33,960 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2022-10-17 16:30:33,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-17 16:30:33,963 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:33,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:30:34,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:30:34,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:30:34,057 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-10-17 16:30:34,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:34,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 30 states and 46 transitions. [2022-10-17 16:30:34,627 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2022-10-17 16:30:34,630 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:30:34,631 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 23 iterations. [2022-10-17 16:30:34,652 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:30:35,298 INFO L560 CodeCheckObserver]: Invariant with dag size 33 [2022-10-17 16:30:35,311 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:30:35,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:30:35 ImpRootNode [2022-10-17 16:30:35,311 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:30:35,312 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:30:35,312 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:30:35,312 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:30:35,313 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:30:21" (3/4) ... [2022-10-17 16:30:35,317 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:30:35,324 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-10-17 16:30:35,329 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-10-17 16:30:35,330 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-10-17 16:30:35,330 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:30:35,330 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:30:35,386 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:30:35,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:30:35,388 INFO L158 Benchmark]: Toolchain (without parser) took 14711.31ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 61.4MB in the beginning and 29.2MB in the end (delta: 32.1MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2022-10-17 16:30:35,389 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory was 68.6MB in the beginning and 68.6MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:30:35,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.53ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 61.1MB in the beginning and 94.3MB in the end (delta: -33.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:30:35,391 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.24ms. Allocated memory is still 121.6MB. Free memory was 94.3MB in the beginning and 93.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:30:35,392 INFO L158 Benchmark]: Boogie Preprocessor took 23.23ms. Allocated memory is still 121.6MB. Free memory was 93.2MB in the beginning and 91.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:30:35,393 INFO L158 Benchmark]: RCFGBuilder took 342.02ms. Allocated memory is still 121.6MB. Free memory was 91.7MB in the beginning and 79.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 16:30:35,394 INFO L158 Benchmark]: CodeCheck took 13936.24ms. Allocated memory is still 121.6MB. Free memory was 79.6MB in the beginning and 31.3MB in the end (delta: 48.3MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2022-10-17 16:30:35,395 INFO L158 Benchmark]: Witness Printer took 75.08ms. Allocated memory is still 121.6MB. Free memory was 31.3MB in the beginning and 29.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:30:35,400 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 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.2s, OverallIterations: 23, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1688 SdHoareTripleChecker+Valid, 15.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 403 mSDsluCounter, 1064 SdHoareTripleChecker+Invalid, 11.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 544 mSDsCounter, 2213 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5036 IncrementalHoareTripleChecker+Invalid, 7249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2213 mSolverCounterUnsat, 520 mSDtfsCounter, 5036 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6813 GetRequests, 6501 SyntacticMatches, 168 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10117 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 944 NumberOfCodeBlocks, 944 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 922 ConstructedInterpolants, 0 QuantifiedInterpolants, 2917 SizeOfPredicates, 35 NumberOfNonLiveVariables, 2612 ConjunctsInSsa, 280 ConjunctsInUnsatCore, 22 InterpolantComputations, 3 PerfectInterpolantSequences, 2618/2810 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 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((!(5 == t && 2 == a) && !(t == 1 + 2 * a && 2 == 2 * a)) && !(7 == t && 3 == a)) || (16 == s && 3 == a)) || (9 == s && 2 == a)) || (s == 2 + 2 * a && 2 == 2 * a) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory was 68.6MB in the beginning and 68.6MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.53ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 61.1MB in the beginning and 94.3MB in the end (delta: -33.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.24ms. Allocated memory is still 121.6MB. Free memory was 94.3MB in the beginning and 93.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.23ms. Allocated memory is still 121.6MB. Free memory was 93.2MB in the beginning and 91.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 342.02ms. Allocated memory is still 121.6MB. Free memory was 91.7MB in the beginning and 79.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 13936.24ms. Allocated memory is still 121.6MB. Free memory was 79.6MB in the beginning and 31.3MB in the end (delta: 48.3MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. * Witness Printer took 75.08ms. Allocated memory is still 121.6MB. Free memory was 31.3MB in the beginning and 29.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:30:35,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950ebde2-4d54-43d4-bb56-234a593862b9/bin/ukojak-92XMlrwhuB/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 Result: TRUE