./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/nested6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/nested6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ --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 327b0d5e70f014fe291a4771fe2bbb17cb1148e77fe8f6a261d10a47df8adacc --- 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-6b4ec56 [2022-11-20 18:23:09,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:23:09,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:23:09,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:23:09,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:23:09,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:23:09,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:23:09,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:23:09,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:23:09,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:23:09,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:23:09,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:23:09,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:23:09,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:23:09,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:23:09,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:23:09,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:23:09,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:23:09,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:23:09,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:23:09,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:23:09,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:23:09,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:23:09,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:23:09,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:23:09,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:23:09,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:23:09,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:23:09,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:23:09,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:23:09,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:23:09,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:23:09,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:23:09,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:23:09,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:23:09,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:23:09,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:23:09,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:23:09,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:23:09,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:23:09,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:23:09,120 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-11-20 18:23:09,150 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:23:09,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:23:09,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:23:09,157 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:23:09,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:23:09,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:23:09,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:23:09,159 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 18:23:09,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:23:09,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 18:23:09,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:23:09,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:23:09,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:23:09,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:23:09,161 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 18:23:09,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:23:09,162 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:23:09,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:23:09,162 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:23:09,162 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:23:09,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:23:09,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:23:09,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:23:09,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:23:09,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:23:09,164 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:23:09,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:23:09,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:23:09,165 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_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 327b0d5e70f014fe291a4771fe2bbb17cb1148e77fe8f6a261d10a47df8adacc [2022-11-20 18:23:09,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:23:09,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:23:09,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:23:09,462 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:23:09,462 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:23:09,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/loop-invgen/nested6.i [2022-11-20 18:23:12,556 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:23:12,858 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:23:12,862 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/sv-benchmarks/c/loop-invgen/nested6.i [2022-11-20 18:23:12,868 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ/data/f2d33b6f2/a13d40a59aa448e98a55017212da9305/FLAGda85647ec [2022-11-20 18:23:12,881 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ/data/f2d33b6f2/a13d40a59aa448e98a55017212da9305 [2022-11-20 18:23:12,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:23:12,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:23:12,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:23:12,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:23:12,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:23:12,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:23:12" (1/1) ... [2022-11-20 18:23:12,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e47105b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:23:12, skipping insertion in model container [2022-11-20 18:23:12,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:23:12" (1/1) ... [2022-11-20 18:23:12,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:23:12,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:23:13,064 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_35da93ce-5628-4c4b-ac88-4eef3c069738/sv-benchmarks/c/loop-invgen/nested6.i[893,906] [2022-11-20 18:23:13,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:23:13,085 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:23:13,097 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_35da93ce-5628-4c4b-ac88-4eef3c069738/sv-benchmarks/c/loop-invgen/nested6.i[893,906] [2022-11-20 18:23:13,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:23:13,115 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:23:13,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:23:13 WrapperNode [2022-11-20 18:23:13,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:23:13,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:23:13,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:23:13,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:23:13,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:23:13" (1/1) ... [2022-11-20 18:23:13,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:23:13" (1/1) ... [2022-11-20 18:23:13,155 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2022-11-20 18:23:13,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:23:13,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:23:13,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:23:13,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:23:13,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:23:13" (1/1) ... [2022-11-20 18:23:13,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:23:13" (1/1) ... [2022-11-20 18:23:13,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:23:13" (1/1) ... [2022-11-20 18:23:13,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:23:13" (1/1) ... [2022-11-20 18:23:13,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:23:13" (1/1) ... [2022-11-20 18:23:13,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:23:13" (1/1) ... [2022-11-20 18:23:13,190 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:23:13" (1/1) ... [2022-11-20 18:23:13,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:23:13" (1/1) ... [2022-11-20 18:23:13,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:23:13,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:23:13,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:23:13,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:23:13,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:23:13" (1/1) ... [2022-11-20 18:23:13,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:23:13,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:23:13,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:23:13,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:23:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 18:23:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 18:23:13,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:23:13,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:23:13,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 18:23:13,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 18:23:13,342 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:23:13,344 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:23:13,488 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:23:13,514 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:23:13,514 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 18:23:13,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:23:13 BoogieIcfgContainer [2022-11-20 18:23:13,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:23:13,518 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:23:13,518 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:23:13,529 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:23:13,529 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:23:13" (1/1) ... [2022-11-20 18:23:13,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:23:13,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2022-11-20 18:23:13,594 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2022-11-20 18:23:13,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 18:23:13,596 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:13,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:23:14,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:14,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 39 transitions. [2022-11-20 18:23:14,136 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2022-11-20 18:23:14,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 18:23:14,141 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:14,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:14,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:23:14,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:14,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 31 states and 48 transitions. [2022-11-20 18:23:14,548 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2022-11-20 18:23:14,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 18:23:14,549 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:14,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:14,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:23:15,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:15,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 36 states and 59 transitions. [2022-11-20 18:23:15,071 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 59 transitions. [2022-11-20 18:23:15,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 18:23:15,074 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:15,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:15,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:23:15,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:15,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 37 states and 60 transitions. [2022-11-20 18:23:15,225 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2022-11-20 18:23:15,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 18:23:15,226 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:15,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:15,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:23:15,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:15,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 41 states and 72 transitions. [2022-11-20 18:23:15,963 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 72 transitions. [2022-11-20 18:23:15,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 18:23:15,965 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:15,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:16,085 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:23:16,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:16,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 41 states and 71 transitions. [2022-11-20 18:23:16,149 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 71 transitions. [2022-11-20 18:23:16,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 18:23:16,157 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:16,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:16,255 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 18:23:16,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:16,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 36 states and 60 transitions. [2022-11-20 18:23:16,464 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 60 transitions. [2022-11-20 18:23:16,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 18:23:16,465 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:16,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:16,661 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:23:17,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:17,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 42 states and 75 transitions. [2022-11-20 18:23:17,718 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 75 transitions. [2022-11-20 18:23:17,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 18:23:17,719 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:17,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:17,845 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 18:23:18,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:18,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 45 states and 84 transitions. [2022-11-20 18:23:18,251 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 84 transitions. [2022-11-20 18:23:18,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 18:23:18,252 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:18,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:18,331 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 18:23:19,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:19,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 49 states and 93 transitions. [2022-11-20 18:23:19,176 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 93 transitions. [2022-11-20 18:23:19,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 18:23:19,178 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:19,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:19,229 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 18:23:19,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:19,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 50 states and 94 transitions. [2022-11-20 18:23:19,462 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 94 transitions. [2022-11-20 18:23:19,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 18:23:19,463 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:19,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:19,687 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 18:23:20,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:20,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 54 states and 104 transitions. [2022-11-20 18:23:20,723 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 104 transitions. [2022-11-20 18:23:20,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 18:23:20,723 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:20,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:20,766 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 18:23:21,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:21,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 55 states and 104 transitions. [2022-11-20 18:23:21,057 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 104 transitions. [2022-11-20 18:23:21,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-20 18:23:21,061 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:21,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:21,146 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 18:23:22,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:22,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 59 states and 112 transitions. [2022-11-20 18:23:22,017 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 112 transitions. [2022-11-20 18:23:22,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 18:23:22,018 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:22,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:22,114 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 18:23:22,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:22,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 59 states and 110 transitions. [2022-11-20 18:23:22,422 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 110 transitions. [2022-11-20 18:23:22,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-20 18:23:22,423 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:22,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:22,474 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 18:23:22,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:22,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 58 states and 107 transitions. [2022-11-20 18:23:22,997 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 107 transitions. [2022-11-20 18:23:22,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-20 18:23:22,998 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:22,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:23,119 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 18:23:24,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:24,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 60 states and 112 transitions. [2022-11-20 18:23:24,082 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 112 transitions. [2022-11-20 18:23:24,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-20 18:23:24,083 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:24,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 18:23:24,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:24,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 61 states and 113 transitions. [2022-11-20 18:23:24,456 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 113 transitions. [2022-11-20 18:23:24,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 18:23:24,457 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:24,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:24,561 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-20 18:23:24,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:24,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 60 states and 111 transitions. [2022-11-20 18:23:24,620 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 111 transitions. [2022-11-20 18:23:24,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 18:23:24,621 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:24,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:24,848 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-20 18:23:26,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:26,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 66 states and 121 transitions. [2022-11-20 18:23:26,238 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 121 transitions. [2022-11-20 18:23:26,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 18:23:26,238 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:26,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:26,749 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 18:23:28,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:28,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 74 states and 137 transitions. [2022-11-20 18:23:28,797 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 137 transitions. [2022-11-20 18:23:28,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 18:23:28,799 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:28,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 18:23:29,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:29,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 75 states and 138 transitions. [2022-11-20 18:23:29,290 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 138 transitions. [2022-11-20 18:23:29,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-20 18:23:29,291 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:29,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-20 18:23:30,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:30,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 77 states and 143 transitions. [2022-11-20 18:23:30,022 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 143 transitions. [2022-11-20 18:23:30,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-20 18:23:30,024 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:30,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:30,296 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 40 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-20 18:23:31,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:31,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 79 states and 146 transitions. [2022-11-20 18:23:31,111 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 146 transitions. [2022-11-20 18:23:31,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-20 18:23:31,112 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:31,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:31,772 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 35 proven. 17 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-20 18:23:34,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:34,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 88 states and 169 transitions. [2022-11-20 18:23:34,761 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 169 transitions. [2022-11-20 18:23:34,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-20 18:23:34,764 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:34,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:35,124 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 35 proven. 17 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-20 18:23:37,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:37,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 96 states and 185 transitions. [2022-11-20 18:23:37,257 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 185 transitions. [2022-11-20 18:23:37,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-20 18:23:37,260 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:37,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:37,591 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 35 proven. 17 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-20 18:23:38,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:38,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 97 states and 186 transitions. [2022-11-20 18:23:38,042 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 186 transitions. [2022-11-20 18:23:38,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-20 18:23:38,042 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:38,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-11-20 18:23:39,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:39,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 99 states and 193 transitions. [2022-11-20 18:23:39,065 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 193 transitions. [2022-11-20 18:23:39,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-20 18:23:39,066 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:39,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:39,329 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 47 proven. 39 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-20 18:23:40,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:40,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 103 states and 200 transitions. [2022-11-20 18:23:40,480 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 200 transitions. [2022-11-20 18:23:40,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-20 18:23:40,481 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:40,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:40,657 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-11-20 18:23:42,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:42,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 109 states and 209 transitions. [2022-11-20 18:23:42,173 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 209 transitions. [2022-11-20 18:23:42,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-20 18:23:42,174 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:42,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:42,346 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-11-20 18:23:43,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:43,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 111 states and 212 transitions. [2022-11-20 18:23:43,146 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 212 transitions. [2022-11-20 18:23:43,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-20 18:23:43,147 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:43,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:43,312 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-11-20 18:23:43,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:43,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 111 states and 211 transitions. [2022-11-20 18:23:43,769 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 211 transitions. [2022-11-20 18:23:43,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-20 18:23:43,770 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:43,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:44,213 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 76 proven. 22 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-20 18:23:47,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:47,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 121 states and 231 transitions. [2022-11-20 18:23:47,058 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 231 transitions. [2022-11-20 18:23:47,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-20 18:23:47,059 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:47,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:48,090 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 22 proven. 47 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-20 18:23:51,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:51,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 127 states and 245 transitions. [2022-11-20 18:23:51,307 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 245 transitions. [2022-11-20 18:23:51,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-20 18:23:51,308 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:51,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:51,372 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-11-20 18:23:51,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:51,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 128 states and 245 transitions. [2022-11-20 18:23:51,894 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 245 transitions. [2022-11-20 18:23:51,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 18:23:51,895 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:51,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:52,826 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 53 proven. 32 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-20 18:23:58,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:23:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 144 states and 280 transitions. [2022-11-20 18:23:58,820 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 280 transitions. [2022-11-20 18:23:58,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-20 18:23:58,821 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:23:58,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:23:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:23:59,023 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 92 proven. 22 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-20 18:24:00,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:24:00,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 149 states and 292 transitions. [2022-11-20 18:24:00,653 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 292 transitions. [2022-11-20 18:24:00,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 18:24:00,655 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:24:00,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:24:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:24:01,009 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 53 proven. 32 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-20 18:24:01,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:24:01,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 150 states and 292 transitions. [2022-11-20 18:24:01,433 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 292 transitions. [2022-11-20 18:24:01,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-20 18:24:01,435 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:24:01,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:24:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:24:01,615 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 92 proven. 22 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-20 18:24:02,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:24:02,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 151 states and 292 transitions. [2022-11-20 18:24:02,169 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 292 transitions. [2022-11-20 18:24:02,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 18:24:02,171 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:24:02,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:24:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:24:02,552 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 53 proven. 32 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-20 18:24:04,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:24:04,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 159 states and 305 transitions. [2022-11-20 18:24:04,978 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 305 transitions. [2022-11-20 18:24:04,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-20 18:24:04,979 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:24:04,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:24:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:24:05,186 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 9 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-11-20 18:24:05,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:24:05,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 161 states and 309 transitions. [2022-11-20 18:24:05,788 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 309 transitions. [2022-11-20 18:24:05,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 18:24:05,789 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:24:05,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:24:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:24:06,360 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 48 proven. 25 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-11-20 18:24:07,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:24:07,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 163 states and 317 transitions. [2022-11-20 18:24:07,306 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 317 transitions. [2022-11-20 18:24:07,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-20 18:24:07,308 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:24:07,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:24:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:24:07,761 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 65 proven. 59 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-20 18:24:09,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:24:09,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 169 states and 325 transitions. [2022-11-20 18:24:09,433 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 325 transitions. [2022-11-20 18:24:09,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-20 18:24:09,435 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:24:09,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:24:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:24:09,667 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 107 proven. 33 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-20 18:24:10,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:24:10,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 167 states and 320 transitions. [2022-11-20 18:24:10,005 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 320 transitions. [2022-11-20 18:24:10,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-20 18:24:10,007 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:24:10,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:24:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:24:10,178 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 71 proven. 4 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-20 18:24:11,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:24:11,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 170 states and 325 transitions. [2022-11-20 18:24:11,285 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 325 transitions. [2022-11-20 18:24:11,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-20 18:24:11,286 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:24:11,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:24:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:24:11,508 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 107 proven. 33 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-20 18:24:12,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:24:12,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 171 states and 325 transitions. [2022-11-20 18:24:12,075 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 325 transitions. [2022-11-20 18:24:12,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-20 18:24:12,077 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:24:12,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:24:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:24:13,021 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 39 proven. 68 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-11-20 18:24:15,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:24:15,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 174 states and 331 transitions. [2022-11-20 18:24:15,058 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 331 transitions. [2022-11-20 18:24:15,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-20 18:24:15,059 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:24:15,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:24:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:24:15,465 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 72 proven. 72 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-11-20 18:24:16,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:24:16,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 177 states and 338 transitions. [2022-11-20 18:24:16,865 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 338 transitions. [2022-11-20 18:24:16,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-20 18:24:16,866 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:24:16,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:24:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:24:17,513 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 39 proven. 68 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-11-20 18:24:18,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:24:18,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 178 states and 338 transitions. [2022-11-20 18:24:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 338 transitions. [2022-11-20 18:24:18,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-20 18:24:18,085 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:24:18,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:24:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:24:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 111 proven. 9 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-11-20 18:24:18,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:24:18,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 134 states and 229 transitions. [2022-11-20 18:24:18,866 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 229 transitions. [2022-11-20 18:24:18,867 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 18:24:18,867 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 51 iterations. [2022-11-20 18:24:18,876 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-11-20 18:24:19,744 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:24:19,748 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:24:19,748 INFO L560 CodeCheckObserver]: Invariant with dag size 36 [2022-11-20 18:24:19,755 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:24:19,756 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:24:19,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:24:19 ImpRootNode [2022-11-20 18:24:19,756 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:24:19,757 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:24:19,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:24:19,757 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:24:19,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:23:13" (3/4) ... [2022-11-20 18:24:19,761 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 18:24:19,767 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-20 18:24:19,770 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-20 18:24:19,771 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 18:24:19,771 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 18:24:19,771 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 18:24:19,812 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:24:19,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:24:19,813 INFO L158 Benchmark]: Toolchain (without parser) took 66927.55ms. Allocated memory was 159.4MB in the beginning and 650.1MB in the end (delta: 490.7MB). Free memory was 128.5MB in the beginning and 462.8MB in the end (delta: -334.4MB). Peak memory consumption was 157.7MB. Max. memory is 16.1GB. [2022-11-20 18:24:19,813 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 159.4MB. Free memory is still 101.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:24:19,813 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.91ms. Allocated memory is still 159.4MB. Free memory was 128.0MB in the beginning and 118.0MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 18:24:19,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.87ms. Allocated memory is still 159.4MB. Free memory was 118.0MB in the beginning and 116.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:24:19,814 INFO L158 Benchmark]: Boogie Preprocessor took 35.93ms. Allocated memory is still 159.4MB. Free memory was 116.7MB in the beginning and 115.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:24:19,815 INFO L158 Benchmark]: RCFGBuilder took 324.31ms. Allocated memory is still 159.4MB. Free memory was 115.1MB in the beginning and 103.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 18:24:19,815 INFO L158 Benchmark]: CodeCheck took 66237.80ms. Allocated memory was 159.4MB in the beginning and 650.1MB in the end (delta: 490.7MB). Free memory was 103.3MB in the beginning and 464.9MB in the end (delta: -361.6MB). Peak memory consumption was 130.4MB. Max. memory is 16.1GB. [2022-11-20 18:24:19,816 INFO L158 Benchmark]: Witness Printer took 55.43ms. Allocated memory is still 650.1MB. Free memory was 464.9MB in the beginning and 462.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:24:19,818 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 65.3s, OverallIterations: 51, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10083 SdHoareTripleChecker+Valid, 65.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5729 mSDsluCounter, 3003 SdHoareTripleChecker+Invalid, 53.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1929 mSDsCounter, 10497 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35551 IncrementalHoareTripleChecker+Invalid, 46048 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10497 mSolverCounterUnsat, 1074 mSDtfsCounter, 35551 mSolverCounterSat, 1.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22506 GetRequests, 21619 SyntacticMatches, 347 SemanticMatches, 540 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188858 ImplicationChecksByTransitivity, 56.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 13.1s InterpolantComputationTime, 2563 NumberOfCodeBlocks, 2563 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 2513 ConstructedInterpolants, 0 QuantifiedInterpolants, 6453 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 50 InterpolantComputations, 9 PerfectInterpolantSequences, 4988/5746 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: 19]: 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: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((i == 0 && !(k + 1 <= i + n)) || (!(i == 0) && !(j <= k))) || (!(i == 0) && n <= j)) || !(k <= j + 1)) || !(2 * i <= k)) || (i == 0 && !(2 * i <= j))) || !(k <= 2 * i)) || (!(2 * i + 1 <= j) && k <= j) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 159.4MB. Free memory is still 101.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.91ms. Allocated memory is still 159.4MB. Free memory was 128.0MB in the beginning and 118.0MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.87ms. Allocated memory is still 159.4MB. Free memory was 118.0MB in the beginning and 116.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.93ms. Allocated memory is still 159.4MB. Free memory was 116.7MB in the beginning and 115.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 324.31ms. Allocated memory is still 159.4MB. Free memory was 115.1MB in the beginning and 103.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 66237.80ms. Allocated memory was 159.4MB in the beginning and 650.1MB in the end (delta: 490.7MB). Free memory was 103.3MB in the beginning and 464.9MB in the end (delta: -361.6MB). Peak memory consumption was 130.4MB. Max. memory is 16.1GB. * Witness Printer took 55.43ms. Allocated memory is still 650.1MB. Free memory was 464.9MB in the beginning and 462.8MB 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! [2022-11-20 18:24:19,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35da93ce-5628-4c4b-ac88-4eef3c069738/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE