./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/fermat1-ll.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_92581dad-3028-467a-8b62-4f616b4d7fe3/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92581dad-3028-467a-8b62-4f616b4d7fe3/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_92581dad-3028-467a-8b62-4f616b4d7fe3/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92581dad-3028-467a-8b62-4f616b4d7fe3/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/fermat1-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92581dad-3028-467a-8b62-4f616b4d7fe3/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_92581dad-3028-467a-8b62-4f616b4d7fe3/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 c5787d4099664297951b30a30ca371dd536df07843738ed8698fe723430a974c --- 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 16:41:11,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:41:11,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:41:11,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:41:11,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:41:11,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:41:11,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:41:11,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:41:11,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:41:11,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:41:11,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:41:11,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:41:11,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:41:11,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:41:11,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:41:11,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:41:11,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:41:11,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:41:11,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:41:11,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:41:11,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:41:11,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:41:11,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:41:11,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:41:11,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:41:11,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:41:11,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:41:11,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:41:11,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:41:11,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:41:11,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:41:11,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:41:11,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:41:11,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:41:11,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:41:11,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:41:11,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:41:11,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:41:11,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:41:11,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:41:11,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:41:11,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92581dad-3028-467a-8b62-4f616b4d7fe3/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:41:11,489 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:41:11,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:41:11,491 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:41:11,491 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:41:11,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:41:11,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:41:11,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:41:11,493 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:41:11,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:41:11,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:41:11,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:41:11,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:41:11,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:41:11,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:41:11,495 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:41:11,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:41:11,496 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:41:11,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:41:11,496 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:41:11,497 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:41:11,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:41:11,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:41:11,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:41:11,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:41:11,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:41:11,499 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:41:11,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:41:11,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:41:11,499 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_92581dad-3028-467a-8b62-4f616b4d7fe3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92581dad-3028-467a-8b62-4f616b4d7fe3/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5787d4099664297951b30a30ca371dd536df07843738ed8698fe723430a974c [2022-10-17 16:41:11,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:41:11,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:41:11,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:41:11,763 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:41:11,764 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:41:11,766 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92581dad-3028-467a-8b62-4f616b4d7fe3/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench/fermat1-ll.c [2022-10-17 16:41:11,839 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92581dad-3028-467a-8b62-4f616b4d7fe3/bin/ukojak-92XMlrwhuB/data/7c124225d/3fbfe7df9faa403cb525980255f2faf3/FLAGe7c4b5042 [2022-10-17 16:41:12,294 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:41:12,295 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92581dad-3028-467a-8b62-4f616b4d7fe3/sv-benchmarks/c/nla-digbench/fermat1-ll.c [2022-10-17 16:41:12,306 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92581dad-3028-467a-8b62-4f616b4d7fe3/bin/ukojak-92XMlrwhuB/data/7c124225d/3fbfe7df9faa403cb525980255f2faf3/FLAGe7c4b5042 [2022-10-17 16:41:12,690 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92581dad-3028-467a-8b62-4f616b4d7fe3/bin/ukojak-92XMlrwhuB/data/7c124225d/3fbfe7df9faa403cb525980255f2faf3 [2022-10-17 16:41:12,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:41:12,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:41:12,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:41:12,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:41:12,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:41:12,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:41:12" (1/1) ... [2022-10-17 16:41:12,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23291695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:12, skipping insertion in model container [2022-10-17 16:41:12,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:41:12" (1/1) ... [2022-10-17 16:41:12,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:41:12,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:41:12,928 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_92581dad-3028-467a-8b62-4f616b4d7fe3/sv-benchmarks/c/nla-digbench/fermat1-ll.c[535,548] [2022-10-17 16:41:12,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:41:12,965 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:41:12,977 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_92581dad-3028-467a-8b62-4f616b4d7fe3/sv-benchmarks/c/nla-digbench/fermat1-ll.c[535,548] [2022-10-17 16:41:12,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:41:13,001 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:41:13,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:13 WrapperNode [2022-10-17 16:41:13,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:41:13,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:41:13,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:41:13,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:41:13,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:13" (1/1) ... [2022-10-17 16:41:13,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:13" (1/1) ... [2022-10-17 16:41:13,038 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2022-10-17 16:41:13,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:41:13,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:41:13,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:41:13,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:41:13,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:13" (1/1) ... [2022-10-17 16:41:13,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:13" (1/1) ... [2022-10-17 16:41:13,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:13" (1/1) ... [2022-10-17 16:41:13,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:13" (1/1) ... [2022-10-17 16:41:13,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:13" (1/1) ... [2022-10-17 16:41:13,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:13" (1/1) ... [2022-10-17 16:41:13,061 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:13" (1/1) ... [2022-10-17 16:41:13,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:13" (1/1) ... [2022-10-17 16:41:13,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:41:13,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:41:13,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:41:13,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:41:13,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:13" (1/1) ... [2022-10-17 16:41:13,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:41:13,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92581dad-3028-467a-8b62-4f616b4d7fe3/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:41:13,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92581dad-3028-467a-8b62-4f616b4d7fe3/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:41:13,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92581dad-3028-467a-8b62-4f616b4d7fe3/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:41:13,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:41:13,154 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 16:41:13,156 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 16:41:13,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:41:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:41:13,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:41:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:41:13,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:41:13,227 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:41:13,229 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:41:13,414 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:41:13,439 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:41:13,439 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 16:41:13,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:41:13 BoogieIcfgContainer [2022-10-17 16:41:13,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:41:13,443 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:41:13,443 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:41:13,466 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:41:13,466 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:41:13" (1/1) ... [2022-10-17 16:41:13,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:41:13,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:13,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2022-10-17 16:41:13,539 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2022-10-17 16:41:13,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:41:13,544 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:13,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:13,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 16:41:13,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:41:13,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:41:13,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:13,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2022-10-17 16:41:13,751 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2022-10-17 16:41:13,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:41:13,752 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:13,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:13,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 16:41:13,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:41:14,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:41:18,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-17 16:41:18,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:18,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2022-10-17 16:41:18,491 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2022-10-17 16:41:18,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 16:41:18,493 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:18,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:18,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 16:41:18,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:41:20,964 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:41:21,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:21,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 49 transitions. [2022-10-17 16:41:21,868 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 49 transitions. [2022-10-17 16:41:21,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 16:41:21,871 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:21,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:21,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:41:21,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:41:22,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:41:22,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:22,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 34 states and 50 transitions. [2022-10-17 16:41:22,161 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 50 transitions. [2022-10-17 16:41:22,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 16:41:22,162 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:22,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:22,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:41:22,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:41:22,337 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 16:41:22,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:22,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 37 states and 53 transitions. [2022-10-17 16:41:22,420 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 53 transitions. [2022-10-17 16:41:22,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-17 16:41:22,423 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:22,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:22,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 16:41:22,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:41:22,567 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-17 16:41:26,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:26,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 43 states and 63 transitions. [2022-10-17 16:41:26,008 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 63 transitions. [2022-10-17 16:41:26,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-17 16:41:26,016 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:26,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:26,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-17 16:41:26,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:41:34,289 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 16:41:54,772 WARN L233 SmtUtils]: Spent 20.35s on a formula simplification. DAG size of input: 30 DAG size of output: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)