./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-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_e39d26ff-28e7-4387-a825-df05f7567591/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39d26ff-28e7-4387-a825-df05f7567591/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_e39d26ff-28e7-4387-a825-df05f7567591/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39d26ff-28e7-4387-a825-df05f7567591/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39d26ff-28e7-4387-a825-df05f7567591/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_e39d26ff-28e7-4387-a825-df05f7567591/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 c6b05ef27bc57afa4e7776361d8c320f2c4d1efbfc422ad92c7a9c3c2e549e04 --- 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 16:57:00,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:57:00,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:57:00,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:57:00,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:57:00,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:57:00,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:57:00,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:57:00,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:57:00,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:57:00,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:57:00,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:57:00,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:57:00,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:57:00,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:57:00,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:57:00,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:57:00,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:57:00,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:57:00,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:57:00,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:57:00,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:57:00,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:57:00,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:57:00,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:57:00,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:57:00,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:57:00,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:57:00,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:57:00,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:57:00,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:57:00,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:57:00,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:57:00,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:57:00,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:57:00,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:57:00,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:57:00,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:57:00,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:57:00,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:57:00,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:57:00,583 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39d26ff-28e7-4387-a825-df05f7567591/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:57:00,627 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:57:00,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:57:00,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:57:00,630 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:57:00,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:57:00,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:57:00,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:57:00,631 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:57:00,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:57:00,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:57:00,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:57:00,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:57:00,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:57:00,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:57:00,634 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:57:00,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:57:00,634 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:57:00,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:57:00,635 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:57:00,635 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:57:00,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:57:00,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:57:00,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:57:00,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:57:00,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:57:00,637 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:57:00,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:57:00,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:57:00,637 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_e39d26ff-28e7-4387-a825-df05f7567591/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39d26ff-28e7-4387-a825-df05f7567591/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6b05ef27bc57afa4e7776361d8c320f2c4d1efbfc422ad92c7a9c3c2e549e04 [2022-10-17 16:57:00,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:57:00,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:57:00,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:57:00,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:57:00,921 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:57:00,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39d26ff-28e7-4387-a825-df05f7567591/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c [2022-10-17 16:57:00,994 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39d26ff-28e7-4387-a825-df05f7567591/bin/ukojak-92XMlrwhuB/data/e0951e0fc/3b85bb09306045df8556e69379463337/FLAG0d9ee2360 [2022-10-17 16:57:01,468 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:57:01,471 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39d26ff-28e7-4387-a825-df05f7567591/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c [2022-10-17 16:57:01,480 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39d26ff-28e7-4387-a825-df05f7567591/bin/ukojak-92XMlrwhuB/data/e0951e0fc/3b85bb09306045df8556e69379463337/FLAG0d9ee2360 [2022-10-17 16:57:01,836 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39d26ff-28e7-4387-a825-df05f7567591/bin/ukojak-92XMlrwhuB/data/e0951e0fc/3b85bb09306045df8556e69379463337 [2022-10-17 16:57:01,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:57:01,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:57:01,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:57:01,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:57:01,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:57:01,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:57:01" (1/1) ... [2022-10-17 16:57:01,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59eff152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:01, skipping insertion in model container [2022-10-17 16:57:01,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:57:01" (1/1) ... [2022-10-17 16:57:01,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:57:01,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:57:02,068 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_e39d26ff-28e7-4387-a825-df05f7567591/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c[535,548] [2022-10-17 16:57:02,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:57:02,097 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:57:02,110 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_e39d26ff-28e7-4387-a825-df05f7567591/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c[535,548] [2022-10-17 16:57:02,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:57:02,133 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:57:02,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:02 WrapperNode [2022-10-17 16:57:02,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:57:02,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:57:02,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:57:02,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:57:02,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:02" (1/1) ... [2022-10-17 16:57:02,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:02" (1/1) ... [2022-10-17 16:57:02,170 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2022-10-17 16:57:02,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:57:02,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:57:02,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:57:02,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:57:02,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:02" (1/1) ... [2022-10-17 16:57:02,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:02" (1/1) ... [2022-10-17 16:57:02,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:02" (1/1) ... [2022-10-17 16:57:02,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:02" (1/1) ... [2022-10-17 16:57:02,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:02" (1/1) ... [2022-10-17 16:57:02,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:02" (1/1) ... [2022-10-17 16:57:02,216 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:02" (1/1) ... [2022-10-17 16:57:02,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:02" (1/1) ... [2022-10-17 16:57:02,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:57:02,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:57:02,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:57:02,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:57:02,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:02" (1/1) ... [2022-10-17 16:57:02,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:57:02,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39d26ff-28e7-4387-a825-df05f7567591/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:57:02,267 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39d26ff-28e7-4387-a825-df05f7567591/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:57:02,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39d26ff-28e7-4387-a825-df05f7567591/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:57:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:57:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 16:57:02,319 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 16:57:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:57:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:57:02,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:57:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:57:02,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:57:02,388 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:57:02,390 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:57:02,652 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:57:02,675 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:57:02,675 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 16:57:02,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:57:02 BoogieIcfgContainer [2022-10-17 16:57:02,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:57:02,679 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:57:02,679 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:57:02,689 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:57:02,690 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:57:02" (1/1) ... [2022-10-17 16:57:02,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:57:02,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:57:02,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2022-10-17 16:57:02,758 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2022-10-17 16:57:02,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 16:57:02,764 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:57:02,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:57:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:57:02,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:57:02,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:57:03,142 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:57:04,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:57:04,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 31 states and 46 transitions. [2022-10-17 16:57:04,171 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2022-10-17 16:57:04,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-17 16:57:04,173 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:57:04,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:57:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:57:04,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 16:57:04,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:57:06,563 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:57:08,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:57:08,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 35 states and 54 transitions. [2022-10-17 16:57:08,413 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 54 transitions. [2022-10-17 16:57:08,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 16:57:08,416 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:57:08,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:57:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:57:08,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:57:08,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:57:08,631 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:57:08,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:57:08,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 37 states and 55 transitions. [2022-10-17 16:57:08,774 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2022-10-17 16:57:08,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-17 16:57:08,776 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:57:08,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:57:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:57:08,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:57:08,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:57:08,895 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-17 16:57:08,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:57:08,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 40 states and 58 transitions. [2022-10-17 16:57:08,964 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2022-10-17 16:57:08,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-17 16:57:08,970 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:57:08,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:57:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:57:09,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 16:57:09,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:57:09,136 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 16:57:09,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:57:09,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 46 states and 68 transitions. [2022-10-17 16:57:09,843 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 68 transitions. [2022-10-17 16:57:09,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-17 16:57:09,844 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:57:09,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:57:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:57:09,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-17 16:57:09,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:57:12,693 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.