./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f5691a-fe3b-47b0-a604-005137a6a58c/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f5691a-fe3b-47b0-a604-005137a6a58c/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_e3f5691a-fe3b-47b0-a604-005137a6a58c/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f5691a-fe3b-47b0-a604-005137a6a58c/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f5691a-fe3b-47b0-a604-005137a6a58c/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_e3f5691a-fe3b-47b0-a604-005137a6a58c/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 2e94830d11d546a3c5eb98e6802b079c63f07b0a4b705dd9e7cd9e09e0492555 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 16:32:22,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 16:32:22,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 16:32:22,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 16:32:22,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 16:32:22,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 16:32:22,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 16:32:22,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 16:32:22,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 16:32:22,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 16:32:22,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 16:32:22,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 16:32:22,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 16:32:22,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 16:32:22,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 16:32:22,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 16:32:22,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 16:32:22,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 16:32:22,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 16:32:22,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 16:32:22,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 16:32:22,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 16:32:22,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 16:32:22,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 16:32:22,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 16:32:22,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 16:32:22,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 16:32:22,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 16:32:22,653 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 16:32:22,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 16:32:22,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 16:32:22,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 16:32:22,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 16:32:22,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 16:32:22,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 16:32:22,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 16:32:22,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 16:32:22,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 16:32:22,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 16:32:22,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 16:32:22,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 16:32:22,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f5691a-fe3b-47b0-a604-005137a6a58c/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 16:32:22,677 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 16:32:22,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 16:32:22,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 16:32:22,683 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 16:32:22,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 16:32:22,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 16:32:22,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 16:32:22,684 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 16:32:22,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 16:32:22,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 16:32:22,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 16:32:22,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 16:32:22,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 16:32:22,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 16:32:22,685 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 16:32:22,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 16:32:22,686 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 16:32:22,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 16:32:22,686 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 16:32:22,686 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 16:32:22,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 16:32:22,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 16:32:22,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 16:32:22,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 16:32:22,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 16:32:22,687 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 16:32:22,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 16:32:22,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 16:32:22,688 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_e3f5691a-fe3b-47b0-a604-005137a6a58c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f5691a-fe3b-47b0-a604-005137a6a58c/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e94830d11d546a3c5eb98e6802b079c63f07b0a4b705dd9e7cd9e09e0492555 [2022-12-14 16:32:22,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 16:32:22,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 16:32:22,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 16:32:22,911 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 16:32:22,911 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 16:32:22,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f5691a-fe3b-47b0-a604-005137a6a58c/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2022-12-14 16:32:25,440 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 16:32:25,608 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 16:32:25,608 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f5691a-fe3b-47b0-a604-005137a6a58c/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2022-12-14 16:32:25,614 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f5691a-fe3b-47b0-a604-005137a6a58c/bin/ukojak-rkRKPMF4O4/data/48797b4e0/a81537260caf4b7eadd68f19cce355d7/FLAG8ce2a8ed8 [2022-12-14 16:32:26,012 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f5691a-fe3b-47b0-a604-005137a6a58c/bin/ukojak-rkRKPMF4O4/data/48797b4e0/a81537260caf4b7eadd68f19cce355d7 [2022-12-14 16:32:26,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 16:32:26,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 16:32:26,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 16:32:26,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 16:32:26,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 16:32:26,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:32:26" (1/1) ... [2022-12-14 16:32:26,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b33115d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:32:26, skipping insertion in model container [2022-12-14 16:32:26,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:32:26" (1/1) ... [2022-12-14 16:32:26,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 16:32:26,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 16:32:26,140 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_e3f5691a-fe3b-47b0-a604-005137a6a58c/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2022-12-14 16:32:26,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:32:26,160 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 16:32:26,169 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_e3f5691a-fe3b-47b0-a604-005137a6a58c/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2022-12-14 16:32:26,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:32:26,183 INFO L208 MainTranslator]: Completed translation [2022-12-14 16:32:26,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:32:26 WrapperNode [2022-12-14 16:32:26,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 16:32:26,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 16:32:26,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 16:32:26,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 16:32:26,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:32:26" (1/1) ... [2022-12-14 16:32:26,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:32:26" (1/1) ... [2022-12-14 16:32:26,204 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2022-12-14 16:32:26,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 16:32:26,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 16:32:26,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 16:32:26,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 16:32:26,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:32:26" (1/1) ... [2022-12-14 16:32:26,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:32:26" (1/1) ... [2022-12-14 16:32:26,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:32:26" (1/1) ... [2022-12-14 16:32:26,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:32:26" (1/1) ... [2022-12-14 16:32:26,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:32:26" (1/1) ... [2022-12-14 16:32:26,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:32:26" (1/1) ... [2022-12-14 16:32:26,217 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:32:26" (1/1) ... [2022-12-14 16:32:26,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:32:26" (1/1) ... [2022-12-14 16:32:26,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 16:32:26,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 16:32:26,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 16:32:26,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 16:32:26,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:32:26" (1/1) ... [2022-12-14 16:32:26,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 16:32:26,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f5691a-fe3b-47b0-a604-005137a6a58c/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 16:32:26,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f5691a-fe3b-47b0-a604-005137a6a58c/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 16:32:26,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f5691a-fe3b-47b0-a604-005137a6a58c/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 16:32:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 16:32:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 16:32:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 16:32:26,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 16:32:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 16:32:26,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 16:32:26,315 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 16:32:26,317 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 16:32:26,391 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 16:32:26,411 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 16:32:26,411 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 16:32:26,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:32:26 BoogieIcfgContainer [2022-12-14 16:32:26,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 16:32:26,413 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 16:32:26,413 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 16:32:26,420 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 16:32:26,420 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:32:26" (1/1) ... [2022-12-14 16:32:26,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:32:26,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:26,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2022-12-14 16:32:26,464 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2022-12-14 16:32:26,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 16:32:26,465 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:26,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:26,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:32:26,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:26,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2022-12-14 16:32:26,746 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2022-12-14 16:32:26,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 16:32:26,750 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:26,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:26,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 16:32:26,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:26,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:32:27,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:27,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 39 transitions. [2022-12-14 16:32:27,135 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2022-12-14 16:32:27,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 16:32:27,136 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:27,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:27,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 16:32:27,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 16:32:27,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:27,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 25 states and 42 transitions. [2022-12-14 16:32:27,292 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 42 transitions. [2022-12-14 16:32:27,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 16:32:27,294 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:27,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:27,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 16:32:27,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:27,348 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 16:32:27,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:27,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 28 states and 47 transitions. [2022-12-14 16:32:27,431 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2022-12-14 16:32:27,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 16:32:27,431 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:27,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:27,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 16:32:27,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:27,521 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 16:32:27,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:27,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 52 transitions. [2022-12-14 16:32:27,689 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2022-12-14 16:32:27,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 16:32:27,690 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:27,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:27,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 16:32:27,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:27,761 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 16:32:27,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:27,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 55 transitions. [2022-12-14 16:32:27,910 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2022-12-14 16:32:27,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 16:32:27,911 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:27,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:27,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 16:32:27,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:27,998 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 16:32:28,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:28,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 57 transitions. [2022-12-14 16:32:28,184 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2022-12-14 16:32:28,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 16:32:28,185 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:28,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:28,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 16:32:28,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:28,311 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 16:32:28,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:28,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 56 transitions. [2022-12-14 16:32:28,842 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2022-12-14 16:32:28,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 16:32:28,842 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:28,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:28,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 16:32:28,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 16:32:29,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:29,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 60 transitions. [2022-12-14 16:32:29,114 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 60 transitions. [2022-12-14 16:32:29,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 16:32:29,116 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:29,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:29,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 16:32:29,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:29,164 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-12-14 16:32:29,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:29,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 36 states and 61 transitions. [2022-12-14 16:32:29,241 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 61 transitions. [2022-12-14 16:32:29,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 16:32:29,242 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:29,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:29,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 16:32:29,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:29,340 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 16:32:29,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:29,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 39 states and 67 transitions. [2022-12-14 16:32:29,535 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 67 transitions. [2022-12-14 16:32:29,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 16:32:29,536 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:29,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:29,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 16:32:29,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:29,584 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-12-14 16:32:29,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:29,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 39 states and 66 transitions. [2022-12-14 16:32:29,631 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 66 transitions. [2022-12-14 16:32:29,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 16:32:29,632 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:29,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:29,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-14 16:32:29,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:29,773 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 13 proven. 30 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-12-14 16:32:30,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:30,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 68 transitions. [2022-12-14 16:32:30,023 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2022-12-14 16:32:30,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-14 16:32:30,023 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:30,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:30,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 16:32:30,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:30,119 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 15 proven. 35 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-14 16:32:30,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:30,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 41 states and 72 transitions. [2022-12-14 16:32:30,314 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 72 transitions. [2022-12-14 16:32:30,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 16:32:30,315 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:30,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:30,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 16:32:30,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:30,348 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 41 proven. 7 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2022-12-14 16:32:30,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:30,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 42 states and 73 transitions. [2022-12-14 16:32:30,416 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 73 transitions. [2022-12-14 16:32:30,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 16:32:30,417 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:30,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:30,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-14 16:32:30,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:30,513 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-12-14 16:32:30,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:30,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 45 states and 79 transitions. [2022-12-14 16:32:30,712 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 79 transitions. [2022-12-14 16:32:30,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 16:32:30,712 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:30,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:30,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 16:32:30,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:30,752 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-12-14 16:32:30,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:30,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 45 states and 78 transitions. [2022-12-14 16:32:30,795 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 78 transitions. [2022-12-14 16:32:30,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 16:32:30,796 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:30,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:30,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-14 16:32:30,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:30,945 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 19 proven. 52 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-12-14 16:32:31,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:31,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 46 states and 80 transitions. [2022-12-14 16:32:31,209 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 80 transitions. [2022-12-14 16:32:31,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 16:32:31,210 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:31,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:31,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-14 16:32:31,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:31,353 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 21 proven. 58 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-14 16:32:31,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:31,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 47 states and 84 transitions. [2022-12-14 16:32:31,616 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 84 transitions. [2022-12-14 16:32:31,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 16:32:31,617 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:31,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:31,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 16:32:31,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:31,655 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 59 proven. 7 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-12-14 16:32:31,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:31,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 48 states and 85 transitions. [2022-12-14 16:32:31,752 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2022-12-14 16:32:31,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 16:32:31,752 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:31,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:31,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-14 16:32:31,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:31,912 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 24 proven. 38 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-12-14 16:32:32,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:32,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 51 states and 91 transitions. [2022-12-14 16:32:32,167 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 91 transitions. [2022-12-14 16:32:32,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 16:32:32,168 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:32,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:32,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 16:32:32,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:32,207 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-12-14 16:32:32,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:32,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 51 states and 90 transitions. [2022-12-14 16:32:32,251 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 90 transitions. [2022-12-14 16:32:32,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 16:32:32,252 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:32:32,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:32:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:32:32,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 16:32:32,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:32:32,565 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 99 proven. 15 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-12-14 16:32:33,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:32:33,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 30 states and 46 transitions. [2022-12-14 16:32:33,314 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2022-12-14 16:32:33,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 16:32:33,315 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 24 iterations. [2022-12-14 16:32:33,323 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-12-14 16:32:33,624 INFO L560 CodeCheckObserver]: Invariant with dag size 34 [2022-12-14 16:32:33,631 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 16:32:33,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 04:32:33 ImpRootNode [2022-12-14 16:32:33,632 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 16:32:33,632 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 16:32:33,633 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 16:32:33,633 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 16:32:33,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:32:26" (3/4) ... [2022-12-14 16:32:33,636 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 16:32:33,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-12-14 16:32:33,643 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-14 16:32:33,643 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 16:32:33,643 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 16:32:33,643 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 16:32:33,673 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f5691a-fe3b-47b0-a604-005137a6a58c/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 16:32:33,673 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 16:32:33,674 INFO L158 Benchmark]: Toolchain (without parser) took 7658.88ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 106.1MB in the beginning and 59.7MB in the end (delta: 46.4MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. [2022-12-14 16:32:33,674 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 140.5MB. Free memory is still 110.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 16:32:33,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.67ms. Allocated memory is still 140.5MB. Free memory was 106.1MB in the beginning and 95.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 16:32:33,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.73ms. Allocated memory is still 140.5MB. Free memory was 95.7MB in the beginning and 94.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 16:32:33,675 INFO L158 Benchmark]: Boogie Preprocessor took 13.46ms. Allocated memory is still 140.5MB. Free memory was 94.4MB in the beginning and 93.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 16:32:33,675 INFO L158 Benchmark]: RCFGBuilder took 193.56ms. Allocated memory is still 140.5MB. Free memory was 93.1MB in the beginning and 81.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 16:32:33,676 INFO L158 Benchmark]: CodeCheck took 7219.05ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 81.0MB in the beginning and 61.8MB in the end (delta: 19.2MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2022-12-14 16:32:33,676 INFO L158 Benchmark]: Witness Printer took 41.06ms. Allocated memory is still 169.9MB. Free memory was 61.8MB in the beginning and 59.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 16:32:33,677 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.9s, OverallIterations: 24, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1678 SdHoareTripleChecker+Valid, 8.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 436 mSDsluCounter, 869 SdHoareTripleChecker+Invalid, 7.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 580 mSDsCounter, 2380 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5530 IncrementalHoareTripleChecker+Invalid, 7910 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2380 mSolverCounterUnsat, 289 mSDtfsCounter, 5530 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7321 GetRequests, 6991 SyntacticMatches, 192 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9797 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 1023 NumberOfCodeBlocks, 1023 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1000 ConstructedInterpolants, 0 QuantifiedInterpolants, 3119 SizeOfPredicates, 49 NumberOfNonLiveVariables, 2809 ConjunctsInSsa, 389 ConjunctsInUnsatCore, 23 InterpolantComputations, 1 PerfectInterpolantSequences, 2832/3190 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((!(5 == t && 2 == a) && !(t == 1 + 2 * a && 2 == 2 * a)) && !(7 == t && 3 == a)) || (16 == s && 3 == a)) || (a == 1 && s == 4)) || (9 == s && 2 == a) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 140.5MB. Free memory is still 110.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 167.67ms. Allocated memory is still 140.5MB. Free memory was 106.1MB in the beginning and 95.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.73ms. Allocated memory is still 140.5MB. Free memory was 95.7MB in the beginning and 94.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.46ms. Allocated memory is still 140.5MB. Free memory was 94.4MB in the beginning and 93.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 193.56ms. Allocated memory is still 140.5MB. Free memory was 93.1MB in the beginning and 81.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 7219.05ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 81.0MB in the beginning and 61.8MB in the end (delta: 19.2MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. * Witness Printer took 41.06ms. Allocated memory is still 169.9MB. Free memory was 61.8MB in the beginning and 59.7MB 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! [2022-12-14 16:32:33,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f5691a-fe3b-47b0-a604-005137a6a58c/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