./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4 --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 b2a54f54b02d2bb65a6f46eeae11edba1907f4f082d2aaa313102e422e7e6122 --- 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-2329fc7 [2022-12-15 01:49:40,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 01:49:40,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 01:49:40,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 01:49:40,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 01:49:40,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 01:49:40,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 01:49:40,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 01:49:40,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 01:49:40,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 01:49:40,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 01:49:40,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 01:49:40,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 01:49:40,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 01:49:40,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 01:49:40,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 01:49:40,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 01:49:40,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 01:49:40,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 01:49:40,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 01:49:40,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 01:49:40,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 01:49:40,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 01:49:40,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 01:49:40,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 01:49:40,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 01:49:40,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 01:49:40,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 01:49:40,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 01:49:40,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 01:49:40,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 01:49:40,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 01:49:40,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 01:49:40,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 01:49:40,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 01:49:40,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 01:49:40,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 01:49:40,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 01:49:40,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 01:49:40,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 01:49:40,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 01:49:40,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-15 01:49:41,014 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 01:49:41,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 01:49:41,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 01:49:41,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 01:49:41,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 01:49:41,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 01:49:41,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 01:49:41,017 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-15 01:49:41,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 01:49:41,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-15 01:49:41,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 01:49:41,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 01:49:41,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 01:49:41,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 01:49:41,018 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-15 01:49:41,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 01:49:41,018 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 01:49:41,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 01:49:41,019 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 01:49:41,019 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 01:49:41,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 01:49:41,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 01:49:41,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 01:49:41,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 01:49:41,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 01:49:41,020 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 01:49:41,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 01:49:41,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 01:49:41,021 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_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2a54f54b02d2bb65a6f46eeae11edba1907f4f082d2aaa313102e422e7e6122 [2022-12-15 01:49:41,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 01:49:41,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 01:49:41,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 01:49:41,232 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 01:49:41,232 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 01:49:41,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c [2022-12-15 01:49:43,798 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 01:49:43,942 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 01:49:43,943 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c [2022-12-15 01:49:43,946 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4/data/9fe856451/5b2a450af96145ea95471c4bebcf0345/FLAG1b48c9007 [2022-12-15 01:49:43,956 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4/data/9fe856451/5b2a450af96145ea95471c4bebcf0345 [2022-12-15 01:49:43,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 01:49:43,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 01:49:43,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 01:49:43,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 01:49:43,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 01:49:43,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:49:43" (1/1) ... [2022-12-15 01:49:43,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3308370a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:49:43, skipping insertion in model container [2022-12-15 01:49:43,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:49:43" (1/1) ... [2022-12-15 01:49:43,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 01:49:43,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 01:49:44,081 WARN L237 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_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c[458,471] [2022-12-15 01:49:44,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 01:49:44,098 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 01:49:44,107 WARN L237 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_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c[458,471] [2022-12-15 01:49:44,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 01:49:44,120 INFO L208 MainTranslator]: Completed translation [2022-12-15 01:49:44,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:49:44 WrapperNode [2022-12-15 01:49:44,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 01:49:44,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 01:49:44,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 01:49:44,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 01:49:44,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:49:44" (1/1) ... [2022-12-15 01:49:44,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:49:44" (1/1) ... [2022-12-15 01:49:44,144 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2022-12-15 01:49:44,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 01:49:44,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 01:49:44,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 01:49:44,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 01:49:44,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:49:44" (1/1) ... [2022-12-15 01:49:44,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:49:44" (1/1) ... [2022-12-15 01:49:44,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:49:44" (1/1) ... [2022-12-15 01:49:44,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:49:44" (1/1) ... [2022-12-15 01:49:44,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:49:44" (1/1) ... [2022-12-15 01:49:44,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:49:44" (1/1) ... [2022-12-15 01:49:44,160 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:49:44" (1/1) ... [2022-12-15 01:49:44,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:49:44" (1/1) ... [2022-12-15 01:49:44,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 01:49:44,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 01:49:44,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 01:49:44,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 01:49:44,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:49:44" (1/1) ... [2022-12-15 01:49:44,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 01:49:44,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 01:49:44,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 01:49:44,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 01:49:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-15 01:49:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-15 01:49:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 01:49:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 01:49:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-15 01:49:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-15 01:49:44,291 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 01:49:44,293 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 01:49:44,396 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 01:49:44,422 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 01:49:44,422 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-15 01:49:44,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:49:44 BoogieIcfgContainer [2022-12-15 01:49:44,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 01:49:44,426 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 01:49:44,426 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 01:49:44,436 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 01:49:44,437 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:49:44" (1/1) ... [2022-12-15 01:49:44,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 01:49:44,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:44,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2022-12-15 01:49:44,501 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2022-12-15 01:49:44,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 01:49:44,503 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:44,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:44,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-15 01:49:44,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:44,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 01:49:44,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:44,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2022-12-15 01:49:44,796 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2022-12-15 01:49:44,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-15 01:49:44,800 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:44,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:44,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-15 01:49:44,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:44,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 01:49:45,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:45,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 22 states and 35 transitions. [2022-12-15 01:49:45,221 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 35 transitions. [2022-12-15 01:49:45,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-15 01:49:45,221 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:45,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:45,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-15 01:49:45,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:45,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 01:49:45,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:45,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 25 states and 40 transitions. [2022-12-15 01:49:45,471 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 40 transitions. [2022-12-15 01:49:45,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-15 01:49:45,471 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:45,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:45,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-15 01:49:45,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:45,571 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-15 01:49:45,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:45,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 44 transitions. [2022-12-15 01:49:45,647 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 44 transitions. [2022-12-15 01:49:45,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-15 01:49:45,648 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:45,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:45,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-15 01:49:45,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-15 01:49:46,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:46,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 34 states and 61 transitions. [2022-12-15 01:49:46,165 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2022-12-15 01:49:46,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-15 01:49:46,166 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:46,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:46,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-15 01:49:46,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:46,268 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-15 01:49:46,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:46,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 37 states and 67 transitions. [2022-12-15 01:49:46,505 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 67 transitions. [2022-12-15 01:49:46,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-15 01:49:46,506 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:46,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:46,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-15 01:49:46,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:46,575 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-15 01:49:46,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:46,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 38 states and 69 transitions. [2022-12-15 01:49:46,721 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 69 transitions. [2022-12-15 01:49:46,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-15 01:49:46,721 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:46,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:46,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-15 01:49:46,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:46,891 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-15 01:49:47,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:47,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 45 states and 84 transitions. [2022-12-15 01:49:47,637 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 84 transitions. [2022-12-15 01:49:47,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-15 01:49:47,638 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:47,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:47,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-15 01:49:47,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-15 01:49:48,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:48,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 48 states and 90 transitions. [2022-12-15 01:49:48,062 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 90 transitions. [2022-12-15 01:49:48,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-15 01:49:48,063 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:48,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:48,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-15 01:49:48,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:48,118 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-15 01:49:48,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 49 states and 92 transitions. [2022-12-15 01:49:48,280 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 92 transitions. [2022-12-15 01:49:48,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-15 01:49:48,281 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:48,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:48,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-15 01:49:48,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:48,473 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-15 01:49:49,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:49,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 56 states and 107 transitions. [2022-12-15 01:49:49,233 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 107 transitions. [2022-12-15 01:49:49,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-15 01:49:49,234 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:49,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:49,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-15 01:49:49,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:49,473 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 27 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-15 01:49:49,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:49,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 59 states and 113 transitions. [2022-12-15 01:49:49,909 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 113 transitions. [2022-12-15 01:49:49,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-15 01:49:49,910 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:49,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:49,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-15 01:49:49,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:49,962 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-12-15 01:49:50,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:50,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 60 states and 115 transitions. [2022-12-15 01:49:50,155 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 115 transitions. [2022-12-15 01:49:50,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-15 01:49:50,157 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:50,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:50,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-15 01:49:50,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:50,387 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 21 proven. 31 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-15 01:49:51,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:51,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 67 states and 130 transitions. [2022-12-15 01:49:51,137 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 130 transitions. [2022-12-15 01:49:51,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-15 01:49:51,138 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:51,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:51,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:51,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-15 01:49:51,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:51,444 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 21 proven. 41 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-15 01:49:52,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:52,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 70 states and 136 transitions. [2022-12-15 01:49:52,076 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 136 transitions. [2022-12-15 01:49:52,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-15 01:49:52,077 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:52,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:52,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-15 01:49:52,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:52,129 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 27 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-12-15 01:49:52,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:52,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 71 states and 138 transitions. [2022-12-15 01:49:52,353 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 138 transitions. [2022-12-15 01:49:52,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-15 01:49:52,354 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:52,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:52,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 36 conjunts are in the unsatisfiable core [2022-12-15 01:49:52,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:52,580 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 26 proven. 46 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-15 01:49:53,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:53,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 78 states and 153 transitions. [2022-12-15 01:49:53,586 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 153 transitions. [2022-12-15 01:49:53,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-15 01:49:53,587 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:53,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:53,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-15 01:49:53,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:54,047 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-15 01:49:56,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:56,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 39 states and 57 transitions. [2022-12-15 01:49:56,074 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 57 transitions. [2022-12-15 01:49:56,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-15 01:49:56,074 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:49:56,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:49:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:49:56,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-15 01:49:56,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:49:56,128 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 33 proven. 4 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-12-15 01:49:56,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:49:56,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 32 states and 48 transitions. [2022-12-15 01:49:56,637 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2022-12-15 01:49:56,637 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-15 01:49:56,637 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 20 iterations. [2022-12-15 01:49:56,645 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-12-15 01:49:56,893 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 01:49:56,896 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 01:49:56,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 01:49:56 ImpRootNode [2022-12-15 01:49:56,897 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 01:49:56,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 01:49:56,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 01:49:56,897 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 01:49:56,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:49:44" (3/4) ... [2022-12-15 01:49:56,900 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-15 01:49:56,904 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-12-15 01:49:56,907 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-15 01:49:56,908 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-15 01:49:56,908 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-15 01:49:56,908 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-15 01:49:56,935 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 01:49:56,935 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 01:49:56,936 INFO L158 Benchmark]: Toolchain (without parser) took 12977.07ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 92.2MB in the beginning and 86.1MB in the end (delta: 6.2MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2022-12-15 01:49:56,936 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 132.1MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 01:49:56,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.14ms. Allocated memory is still 132.1MB. Free memory was 91.7MB in the beginning and 81.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-15 01:49:56,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.14ms. Allocated memory is still 132.1MB. Free memory was 81.3MB in the beginning and 80.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 01:49:56,937 INFO L158 Benchmark]: Boogie Preprocessor took 18.63ms. Allocated memory is still 132.1MB. Free memory was 80.1MB in the beginning and 79.2MB in the end (delta: 935.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 01:49:56,937 INFO L158 Benchmark]: RCFGBuilder took 261.38ms. Allocated memory is still 132.1MB. Free memory was 78.7MB in the beginning and 67.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-15 01:49:56,937 INFO L158 Benchmark]: CodeCheck took 12470.56ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 67.2MB in the beginning and 88.1MB in the end (delta: -21.0MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-12-15 01:49:56,938 INFO L158 Benchmark]: Witness Printer took 38.27ms. Allocated memory is still 159.4MB. Free memory was 88.1MB in the beginning and 86.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 01:49:56,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.2s, OverallIterations: 20, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1473 SdHoareTripleChecker+Valid, 15.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 690 mSDsluCounter, 1009 SdHoareTripleChecker+Invalid, 14.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 804 mSDsCounter, 1801 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4664 IncrementalHoareTripleChecker+Invalid, 6465 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1801 mSolverCounterUnsat, 205 mSDtfsCounter, 4664 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5137 GetRequests, 4853 SyntacticMatches, 84 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17073 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 573 NumberOfCodeBlocks, 573 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 554 ConstructedInterpolants, 0 QuantifiedInterpolants, 2295 SizeOfPredicates, 48 NumberOfNonLiveVariables, 1953 ConjunctsInSsa, 376 ConjunctsInUnsatCore, 19 InterpolantComputations, 2 PerfectInterpolantSequences, 769/999 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 132.1MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.14ms. Allocated memory is still 132.1MB. Free memory was 91.7MB in the beginning and 81.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.14ms. Allocated memory is still 132.1MB. Free memory was 81.3MB in the beginning and 80.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.63ms. Allocated memory is still 132.1MB. Free memory was 80.1MB in the beginning and 79.2MB in the end (delta: 935.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 261.38ms. Allocated memory is still 132.1MB. Free memory was 78.7MB in the beginning and 67.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 12470.56ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 67.2MB in the beginning and 88.1MB in the end (delta: -21.0MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Witness Printer took 38.27ms. Allocated memory is still 159.4MB. Free memory was 88.1MB in the beginning and 86.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-15 01:49:56,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30c6eb-2131-412a-bf1f-d9fff3e4d0a8/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE