./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/egcd-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/egcd-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5cf588c7d7521936f2238a5a4b8ed55e91050a69daa6016b5b2b4a486ef1b9f8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:51:29,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:51:29,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:51:29,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:51:29,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:51:29,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:51:29,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:51:29,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:51:29,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:51:29,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:51:29,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:51:29,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:51:29,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:51:29,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:51:29,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:51:29,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:51:29,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:51:29,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:51:29,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:51:29,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:51:29,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:51:29,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:51:29,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:51:29,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:51:29,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:51:29,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:51:29,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:51:29,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:51:29,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:51:29,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:51:29,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:51:29,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:51:29,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:51:29,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:51:29,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:51:29,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:51:29,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:51:29,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:51:29,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:51:29,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:51:29,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:51:29,390 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:51:29,458 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:51:29,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:51:29,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:51:29,459 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:51:29,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:51:29,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:51:29,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:51:29,461 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:51:29,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:51:29,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:51:29,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:51:29,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:51:29,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:51:29,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:51:29,462 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:51:29,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:51:29,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:51:29,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:51:29,463 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:51:29,464 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:51:29,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:51:29,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:51:29,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:51:29,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:51:29,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:51:29,470 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:51:29,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:51:29,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:51:29,471 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_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cf588c7d7521936f2238a5a4b8ed55e91050a69daa6016b5b2b4a486ef1b9f8 [2022-10-17 16:51:29,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:51:29,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:51:29,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:51:29,841 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:51:29,845 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:51:29,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench/egcd-ll.c [2022-10-17 16:51:29,932 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB/data/30081c213/322c048ffd084170900107cfaf062297/FLAG4a8f3600d [2022-10-17 16:51:30,478 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:51:30,479 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/sv-benchmarks/c/nla-digbench/egcd-ll.c [2022-10-17 16:51:30,487 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB/data/30081c213/322c048ffd084170900107cfaf062297/FLAG4a8f3600d [2022-10-17 16:51:30,858 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB/data/30081c213/322c048ffd084170900107cfaf062297 [2022-10-17 16:51:30,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:51:30,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:51:30,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:51:30,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:51:30,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:51:30,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:51:30" (1/1) ... [2022-10-17 16:51:30,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e10cb55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:51:30, skipping insertion in model container [2022-10-17 16:51:30,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:51:30" (1/1) ... [2022-10-17 16:51:30,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:51:30,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:51:31,145 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/sv-benchmarks/c/nla-digbench/egcd-ll.c[489,502] [2022-10-17 16:51:31,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:51:31,184 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:51:31,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/sv-benchmarks/c/nla-digbench/egcd-ll.c[489,502] [2022-10-17 16:51:31,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:51:31,222 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:51:31,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:51:31 WrapperNode [2022-10-17 16:51:31,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:51:31,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:51:31,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:51:31,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:51:31,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:51:31" (1/1) ... [2022-10-17 16:51:31,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:51:31" (1/1) ... [2022-10-17 16:51:31,268 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2022-10-17 16:51:31,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:51:31,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:51:31,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:51:31,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:51:31,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:51:31" (1/1) ... [2022-10-17 16:51:31,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:51:31" (1/1) ... [2022-10-17 16:51:31,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:51:31" (1/1) ... [2022-10-17 16:51:31,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:51:31" (1/1) ... [2022-10-17 16:51:31,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:51:31" (1/1) ... [2022-10-17 16:51:31,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:51:31" (1/1) ... [2022-10-17 16:51:31,288 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:51:31" (1/1) ... [2022-10-17 16:51:31,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:51:31" (1/1) ... [2022-10-17 16:51:31,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:51:31,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:51:31,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:51:31,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:51:31,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:51:31" (1/1) ... [2022-10-17 16:51:31,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:51:31,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:51:31,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:51:31,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ec76cf-d8df-44d5-9cb2-837936005270/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:51:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:51:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 16:51:31,384 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 16:51:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:51:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:51:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:51:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:51:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:51:31,479 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:51:31,481 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:51:31,781 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:51:31,886 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:51:31,886 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:51:31,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:51:31 BoogieIcfgContainer [2022-10-17 16:51:31,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:51:31,898 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:51:31,898 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:51:31,919 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:51:31,919 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:51:31" (1/1) ... [2022-10-17 16:51:31,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:51:32,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:32,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 32 transitions. [2022-10-17 16:51:32,034 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2022-10-17 16:51:32,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:51:32,050 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:32,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:32,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:51:32,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:32,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2022-10-17 16:51:32,392 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-10-17 16:51:32,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:51:32,393 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:32,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:32,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 16:51:32,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:32,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:51:32,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:32,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 27 states and 43 transitions. [2022-10-17 16:51:32,811 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2022-10-17 16:51:32,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 16:51:32,815 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:32,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:32,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 16:51:32,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:33,014 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:51:33,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:33,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 30 states and 50 transitions. [2022-10-17 16:51:33,214 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2022-10-17 16:51:33,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:51:33,216 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:33,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:33,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 16:51:33,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:33,445 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:51:33,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:33,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 59 transitions. [2022-10-17 16:51:33,750 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 59 transitions. [2022-10-17 16:51:33,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-17 16:51:33,754 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:33,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:33,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:33,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 16:51:33,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:33,879 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-17 16:51:33,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:33,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 58 transitions. [2022-10-17 16:51:33,936 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2022-10-17 16:51:33,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 16:51:33,938 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:33,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:34,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-17 16:51:34,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:34,397 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-17 16:51:34,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:34,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 38 states and 70 transitions. [2022-10-17 16:51:34,884 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 70 transitions. [2022-10-17 16:51:34,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-17 16:51:34,886 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:34,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:34,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 16:51:34,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:35,096 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-17 16:51:35,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:35,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 42 states and 79 transitions. [2022-10-17 16:51:35,739 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 79 transitions. [2022-10-17 16:51:35,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 16:51:35,740 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:35,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:35,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-17 16:51:35,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:36,369 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 16:51:37,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:37,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 50 states and 99 transitions. [2022-10-17 16:51:37,512 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 99 transitions. [2022-10-17 16:51:37,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-17 16:51:37,514 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:37,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:37,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:51:37,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:37,801 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-17 16:51:40,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:40,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 55 states and 114 transitions. [2022-10-17 16:51:40,021 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 114 transitions. [2022-10-17 16:51:40,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-17 16:51:40,023 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:40,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:40,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-17 16:51:40,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:41,106 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-17 16:51:43,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:43,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 64 states and 133 transitions. [2022-10-17 16:51:43,303 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 133 transitions. [2022-10-17 16:51:43,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-17 16:51:43,304 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:43,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:43,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-17 16:51:43,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:43,705 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-17 16:51:44,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:44,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 67 states and 139 transitions. [2022-10-17 16:51:44,474 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 139 transitions. [2022-10-17 16:51:44,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 16:51:44,475 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:44,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:44,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:51:44,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:44,639 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-17 16:51:48,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:48,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 71 states and 149 transitions. [2022-10-17 16:51:48,394 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 149 transitions. [2022-10-17 16:51:48,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-17 16:51:48,396 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:48,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:48,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-17 16:51:48,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:50,281 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-17 16:51:52,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:52,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 75 states and 166 transitions. [2022-10-17 16:51:52,746 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 166 transitions. [2022-10-17 16:51:52,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-17 16:51:52,747 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:52,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:52,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-17 16:51:52,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:53,268 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-10-17 16:51:53,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:53,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 76 states and 169 transitions. [2022-10-17 16:51:53,772 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 169 transitions. [2022-10-17 16:51:53,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 16:51:53,776 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:53,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:53,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 16:51:53,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:53,871 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-10-17 16:51:54,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:54,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 78 states and 175 transitions. [2022-10-17 16:51:54,766 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 175 transitions. [2022-10-17 16:51:54,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 16:51:54,768 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:54,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:54,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 16:51:54,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:54,829 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-10-17 16:51:55,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:51:55,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 79 states and 176 transitions. [2022-10-17 16:51:55,213 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 176 transitions. [2022-10-17 16:51:55,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-17 16:51:55,214 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:51:55,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:51:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:51:55,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-17 16:51:55,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:51:58,449 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-10-17 16:52:05,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:05,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 87 states and 201 transitions. [2022-10-17 16:52:05,233 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 201 transitions. [2022-10-17 16:52:05,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-17 16:52:05,234 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:05,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:05,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-17 16:52:05,317 INFO L286 TraceCheckSpWp]: Computing forward predicates...