./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_15-1.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_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/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_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/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_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/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 06a81e8bf3973396767cf6326af5dc9a5105a737c418064bf310f9765cc117f7 --- 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 16:34:49,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:34:49,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:34:49,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:34:49,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:34:49,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:34:49,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:34:49,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:34:49,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:34:49,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:34:49,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:34:49,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:34:49,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:34:49,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:34:49,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:34:49,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:34:49,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:34:49,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:34:49,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:34:49,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:34:49,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:34:49,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:34:49,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:34:49,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:34:49,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:34:49,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:34:49,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:34:49,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:34:49,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:34:49,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:34:49,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:34:49,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:34:49,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:34:49,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:34:49,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:34:49,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:34:49,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:34:49,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:34:49,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:34:49,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:34:49,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:34:49,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:34:49,862 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:34:49,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:34:49,863 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:34:49,864 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:34:49,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:34:49,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:34:49,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:34:49,865 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:34:49,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:34:49,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:34:49,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:34:49,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:34:49,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:34:49,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:34:49,867 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:34:49,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:34:49,868 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:34:49,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:34:49,868 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:34:49,868 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:34:49,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:34:49,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:34:49,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:34:49,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:34:49,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:34:49,870 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:34:49,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:34:49,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:34:49,871 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_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06a81e8bf3973396767cf6326af5dc9a5105a737c418064bf310f9765cc117f7 [2022-10-17 16:34:50,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:34:50,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:34:50,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:34:50,165 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:34:50,166 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:34:50,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/recursive-simple/fibo_15-1.c [2022-10-17 16:34:50,254 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/bin/ukojak-92XMlrwhuB/data/13cc2055c/bee033358d01437a9d513d8b7f253c38/FLAG90ff7bfbc [2022-10-17 16:34:50,778 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:34:50,778 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/sv-benchmarks/c/recursive-simple/fibo_15-1.c [2022-10-17 16:34:50,785 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/bin/ukojak-92XMlrwhuB/data/13cc2055c/bee033358d01437a9d513d8b7f253c38/FLAG90ff7bfbc [2022-10-17 16:34:51,137 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/bin/ukojak-92XMlrwhuB/data/13cc2055c/bee033358d01437a9d513d8b7f253c38 [2022-10-17 16:34:51,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:34:51,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:34:51,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:34:51,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:34:51,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:34:51,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:34:51" (1/1) ... [2022-10-17 16:34:51,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e59ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:51, skipping insertion in model container [2022-10-17 16:34:51,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:34:51" (1/1) ... [2022-10-17 16:34:51,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:34:51,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:34:51,343 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_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/sv-benchmarks/c/recursive-simple/fibo_15-1.c[744,757] [2022-10-17 16:34:51,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:34:51,360 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:34:51,379 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_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/sv-benchmarks/c/recursive-simple/fibo_15-1.c[744,757] [2022-10-17 16:34:51,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:34:51,395 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:34:51,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:51 WrapperNode [2022-10-17 16:34:51,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:34:51,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:34:51,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:34:51,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:34:51,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:51" (1/1) ... [2022-10-17 16:34:51,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:51" (1/1) ... [2022-10-17 16:34:51,432 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-10-17 16:34:51,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:34:51,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:34:51,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:34:51,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:34:51,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:51" (1/1) ... [2022-10-17 16:34:51,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:51" (1/1) ... [2022-10-17 16:34:51,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:51" (1/1) ... [2022-10-17 16:34:51,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:51" (1/1) ... [2022-10-17 16:34:51,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:51" (1/1) ... [2022-10-17 16:34:51,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:51" (1/1) ... [2022-10-17 16:34:51,451 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:51" (1/1) ... [2022-10-17 16:34:51,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:51" (1/1) ... [2022-10-17 16:34:51,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:34:51,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:34:51,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:34:51,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:34:51,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:51" (1/1) ... [2022-10-17 16:34:51,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:34:51,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:34:51,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:34:51,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4b587e-49ea-47cb-9678-1ff42c9f6cfa/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:34:51,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:34:51,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:34:51,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:34:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:34:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2022-10-17 16:34:51,543 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2022-10-17 16:34:51,606 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:34:51,608 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:34:51,722 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:34:51,739 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:34:51,740 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:34:51,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:34:51 BoogieIcfgContainer [2022-10-17 16:34:51,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:34:51,744 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:34:51,744 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:34:51,754 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:34:51,754 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:34:51" (1/1) ... [2022-10-17 16:34:51,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:34:51,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:51,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2022-10-17 16:34:51,880 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-10-17 16:34:51,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:34:51,887 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:51,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:52,191 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 16:34:52,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:52,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 25 transitions. [2022-10-17 16:34:52,318 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2022-10-17 16:34:52,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:34:52,319 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:52,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:52,428 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 16:34:52,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:52,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 29 transitions. [2022-10-17 16:34:52,531 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2022-10-17 16:34:52,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 16:34:52,533 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:52,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:34:52,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:53,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 28 transitions. [2022-10-17 16:34:53,000 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2022-10-17 16:34:53,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:34:53,002 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:53,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:53,169 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 16:34:53,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:53,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 26 states and 40 transitions. [2022-10-17 16:34:53,467 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2022-10-17 16:34:53,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-17 16:34:53,474 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:53,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:53,819 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 16:34:54,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:54,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 29 states and 47 transitions. [2022-10-17 16:34:54,371 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2022-10-17 16:34:54,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 16:34:54,374 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:54,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:54,535 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-17 16:34:54,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:54,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 34 states and 62 transitions. [2022-10-17 16:34:54,827 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 62 transitions. [2022-10-17 16:34:54,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 16:34:54,840 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:54,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:55,137 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 47 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-17 16:34:55,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:55,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 34 states and 61 transitions. [2022-10-17 16:34:55,493 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2022-10-17 16:34:55,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-17 16:34:55,496 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:55,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:55,759 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 22 proven. 127 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-10-17 16:34:56,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:56,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 39 states and 78 transitions. [2022-10-17 16:34:56,124 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 78 transitions. [2022-10-17 16:34:56,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-17 16:34:56,126 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:56,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:56,475 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 131 proven. 122 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-10-17 16:34:56,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:56,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 39 states and 77 transitions. [2022-10-17 16:34:56,741 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 77 transitions. [2022-10-17 16:34:56,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-17 16:34:56,747 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:56,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:57,054 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 52 proven. 326 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-10-17 16:34:57,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:57,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 44 states and 96 transitions. [2022-10-17 16:34:57,453 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 96 transitions. [2022-10-17 16:34:57,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-10-17 16:34:57,458 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:57,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:58,109 INFO L134 CoverageAnalysis]: Checked inductivity of 4113 backedges. 142 proven. 942 refuted. 0 times theorem prover too weak. 3029 trivial. 0 not checked. [2022-10-17 16:34:58,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:58,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 49 states and 118 transitions. [2022-10-17 16:34:58,537 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 118 transitions. [2022-10-17 16:34:58,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-10-17 16:34:58,541 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:58,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:59,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1947 backedges. 401 proven. 383 refuted. 0 times theorem prover too weak. 1163 trivial. 0 not checked. [2022-10-17 16:34:59,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:59,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 51 states and 119 transitions. [2022-10-17 16:34:59,836 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 119 transitions. [2022-10-17 16:34:59,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-10-17 16:34:59,848 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:59,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:00,608 INFO L134 CoverageAnalysis]: Checked inductivity of 6077 backedges. 452 proven. 1187 refuted. 0 times theorem prover too weak. 4438 trivial. 0 not checked. [2022-10-17 16:35:00,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:00,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 51 states and 118 transitions. [2022-10-17 16:35:00,957 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 118 transitions. [2022-10-17 16:35:00,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-10-17 16:35:00,971 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:00,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:01,723 INFO L134 CoverageAnalysis]: Checked inductivity of 9549 backedges. 297 proven. 1714 refuted. 0 times theorem prover too weak. 7538 trivial. 0 not checked. [2022-10-17 16:35:02,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:02,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 56 states and 142 transitions. [2022-10-17 16:35:02,244 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 142 transitions. [2022-10-17 16:35:02,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2022-10-17 16:35:02,254 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:02,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:03,193 INFO L134 CoverageAnalysis]: Checked inductivity of 9644 backedges. 1292 proven. 942 refuted. 0 times theorem prover too weak. 7410 trivial. 0 not checked. [2022-10-17 16:35:03,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:03,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 58 states and 143 transitions. [2022-10-17 16:35:03,925 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 143 transitions. [2022-10-17 16:35:03,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2022-10-17 16:35:03,940 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:03,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:05,061 INFO L134 CoverageAnalysis]: Checked inductivity of 14031 backedges. 933 proven. 2344 refuted. 0 times theorem prover too weak. 10754 trivial. 0 not checked. [2022-10-17 16:35:05,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:05,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 58 states and 142 transitions. [2022-10-17 16:35:05,467 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 142 transitions. [2022-10-17 16:35:05,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2022-10-17 16:35:05,476 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:05,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:07,152 INFO L134 CoverageAnalysis]: Checked inductivity of 39779 backedges. 582 proven. 4385 refuted. 0 times theorem prover too weak. 34812 trivial. 0 not checked. [2022-10-17 16:35:07,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:07,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 63 states and 168 transitions. [2022-10-17 16:35:07,706 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 168 transitions. [2022-10-17 16:35:07,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 981 [2022-10-17 16:35:07,733 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:07,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:10,894 INFO L134 CoverageAnalysis]: Checked inductivity of 57573 backedges. 4016 proven. 5474 refuted. 0 times theorem prover too weak. 48083 trivial. 0 not checked. [2022-10-17 16:35:11,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:11,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 63 states and 166 transitions. [2022-10-17 16:35:11,427 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 166 transitions. [2022-10-17 16:35:11,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 981 [2022-10-17 16:35:11,445 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:11,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:13,305 INFO L134 CoverageAnalysis]: Checked inductivity of 57573 backedges. 891 proven. 5889 refuted. 0 times theorem prover too weak. 50793 trivial. 0 not checked. [2022-10-17 16:35:13,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:13,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 68 states and 193 transitions. [2022-10-17 16:35:13,913 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 193 transitions. [2022-10-17 16:35:13,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1432 [2022-10-17 16:35:13,934 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:13,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:18,568 INFO L134 CoverageAnalysis]: Checked inductivity of 123419 backedges. 6618 proven. 9775 refuted. 0 times theorem prover too weak. 107026 trivial. 0 not checked.