./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dad54faad409a509f8fe160c736fa981b1b72909c611eb2d7f09e49e6ca0dfcb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 16:38:39,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 16:38:39,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 16:38:39,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 16:38:39,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 16:38:39,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 16:38:39,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 16:38:39,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 16:38:39,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 16:38:39,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 16:38:39,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 16:38:39,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 16:38:39,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 16:38:39,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 16:38:39,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 16:38:39,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 16:38:39,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 16:38:39,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 16:38:39,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 16:38:39,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 16:38:39,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 16:38:39,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 16:38:39,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 16:38:39,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 16:38:39,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 16:38:39,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 16:38:39,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 16:38:39,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 16:38:39,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 16:38:39,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 16:38:39,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 16:38:39,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 16:38:39,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 16:38:39,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 16:38:39,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 16:38:39,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 16:38:39,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 16:38:39,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 16:38:39,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 16:38:39,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 16:38:39,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 16:38:39,274 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 16:38:39,295 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 16:38:39,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 16:38:39,296 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 16:38:39,296 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 16:38:39,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 16:38:39,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 16:38:39,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 16:38:39,297 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 16:38:39,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 16:38:39,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 16:38:39,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 16:38:39,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 16:38:39,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 16:38:39,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 16:38:39,299 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 16:38:39,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 16:38:39,299 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 16:38:39,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 16:38:39,299 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 16:38:39,300 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 16:38:39,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 16:38:39,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 16:38:39,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 16:38:39,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 16:38:39,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 16:38:39,300 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 16:38:39,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 16:38:39,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 16:38:39,301 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_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad54faad409a509f8fe160c736fa981b1b72909c611eb2d7f09e49e6ca0dfcb [2022-12-14 16:38:39,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 16:38:39,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 16:38:39,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 16:38:39,483 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 16:38:39,484 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 16:38:39,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound2.c [2022-12-14 16:38:42,079 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 16:38:42,237 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 16:38:42,238 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound2.c [2022-12-14 16:38:42,243 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4/data/c0e5cb729/5b6537c10f794fd4bc8900255e3f3244/FLAG5c25d58fc [2022-12-14 16:38:42,655 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4/data/c0e5cb729/5b6537c10f794fd4bc8900255e3f3244 [2022-12-14 16:38:42,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 16:38:42,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 16:38:42,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 16:38:42,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 16:38:42,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 16:38:42,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:38:42" (1/1) ... [2022-12-14 16:38:42,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c25d3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:42, skipping insertion in model container [2022-12-14 16:38:42,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:38:42" (1/1) ... [2022-12-14 16:38:42,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 16:38:42,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 16:38:42,772 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_f77c60c4-0498-4075-875b-c171f3c66fcd/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound2.c[489,502] [2022-12-14 16:38:42,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:38:42,790 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 16:38:42,799 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_f77c60c4-0498-4075-875b-c171f3c66fcd/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound2.c[489,502] [2022-12-14 16:38:42,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:38:42,813 INFO L208 MainTranslator]: Completed translation [2022-12-14 16:38:42,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:42 WrapperNode [2022-12-14 16:38:42,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 16:38:42,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 16:38:42,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 16:38:42,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 16:38:42,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:42" (1/1) ... [2022-12-14 16:38:42,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:42" (1/1) ... [2022-12-14 16:38:42,835 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2022-12-14 16:38:42,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 16:38:42,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 16:38:42,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 16:38:42,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 16:38:42,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:42" (1/1) ... [2022-12-14 16:38:42,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:42" (1/1) ... [2022-12-14 16:38:42,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:42" (1/1) ... [2022-12-14 16:38:42,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:42" (1/1) ... [2022-12-14 16:38:42,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:42" (1/1) ... [2022-12-14 16:38:42,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:42" (1/1) ... [2022-12-14 16:38:42,848 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:42" (1/1) ... [2022-12-14 16:38:42,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:42" (1/1) ... [2022-12-14 16:38:42,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 16:38:42,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 16:38:42,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 16:38:42,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 16:38:42,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:42" (1/1) ... [2022-12-14 16:38:42,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 16:38:42,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 16:38:42,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 16:38:42,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 16:38:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 16:38:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 16:38:42,900 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 16:38:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 16:38:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 16:38:42,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 16:38:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 16:38:42,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 16:38:42,949 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 16:38:42,950 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 16:38:43,036 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 16:38:43,057 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 16:38:43,057 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 16:38:43,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:38:43 BoogieIcfgContainer [2022-12-14 16:38:43,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 16:38:43,060 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 16:38:43,060 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 16:38:43,067 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 16:38:43,067 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:38:43" (1/1) ... [2022-12-14 16:38:43,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:38:43,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:38:43,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2022-12-14 16:38:43,111 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2022-12-14 16:38:43,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 16:38:43,114 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:38:43,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:38:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:38:43,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 16:38:43,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:38:43,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2022-12-14 16:38:43,225 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2022-12-14 16:38:43,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 16:38:43,226 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:38:43,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:38:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:38:43,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 16:38:43,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:38:43,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2022-12-14 16:38:43,344 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2022-12-14 16:38:43,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 16:38:43,345 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:38:43,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:38:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:38:43,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 16:38:43,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:38:43,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 16:38:43,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:38:43,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 50 transitions. [2022-12-14 16:38:43,696 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 50 transitions. [2022-12-14 16:38:43,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 16:38:43,697 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:38:43,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:38:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:38:43,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 16:38:43,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:38:43,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 16:38:44,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:38:44,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 35 states and 59 transitions. [2022-12-14 16:38:44,551 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 59 transitions. [2022-12-14 16:38:44,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 16:38:44,552 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:38:44,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:38:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:38:44,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-14 16:38:44,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:38:44,912 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 16:38:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:38:46,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 42 states and 80 transitions. [2022-12-14 16:38:46,298 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 80 transitions. [2022-12-14 16:38:46,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 16:38:46,300 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:38:46,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:38:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:38:46,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 16:38:46,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:38:46,371 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 16:38:46,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:38:46,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 43 states and 81 transitions. [2022-12-14 16:38:46,431 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 81 transitions. [2022-12-14 16:38:46,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 16:38:46,432 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:38:46,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:38:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:38:46,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 16:38:46,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:38:46,591 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 16:38:48,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:38:48,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 53 states and 118 transitions. [2022-12-14 16:38:48,179 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 118 transitions. [2022-12-14 16:38:48,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 16:38:48,180 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:38:48,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:38:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:38:48,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 16:38:48,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:38:48,649 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 16:38:50,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:38:50,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 58 states and 139 transitions. [2022-12-14 16:38:50,190 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 139 transitions. [2022-12-14 16:38:50,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 16:38:50,191 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:38:50,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:38:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:38:50,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 16:38:50,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:38:50,425 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 16:38:50,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:38:50,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 60 states and 141 transitions. [2022-12-14 16:38:50,955 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 141 transitions. [2022-12-14 16:38:50,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 16:38:50,956 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:38:50,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:38:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:38:50,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 16:38:50,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:38:51,267 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 16:38:52,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:38:52,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 64 states and 157 transitions. [2022-12-14 16:38:52,111 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 157 transitions. [2022-12-14 16:38:52,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 16:38:52,112 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:38:52,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:38:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:38:52,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-14 16:38:52,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:38:52,962 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 16:38:55,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:38:55,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 69 states and 183 transitions. [2022-12-14 16:38:55,156 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 183 transitions. [2022-12-14 16:38:55,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 16:38:55,157 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:38:55,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:38:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:38:55,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-14 16:38:55,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:38:55,955 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 16:38:58,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:38:58,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 73 states and 198 transitions. [2022-12-14 16:38:58,135 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 198 transitions. [2022-12-14 16:38:58,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 16:38:58,136 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:38:58,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:38:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:38:58,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-14 16:38:58,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:38:58,604 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 16:38:59,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:38:59,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 75 states and 201 transitions. [2022-12-14 16:38:59,573 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 201 transitions. [2022-12-14 16:38:59,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 16:38:59,574 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:38:59,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:38:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:38:59,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 16:38:59,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:38:59,777 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 16:39:04,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:39:04,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 78 states and 214 transitions. [2022-12-14 16:39:04,905 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 214 transitions. [2022-12-14 16:39:04,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 16:39:04,906 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:39:04,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:39:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:39:04,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-14 16:39:04,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:39:05,658 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 16:39:09,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:39:09,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 83 states and 240 transitions. [2022-12-14 16:39:09,364 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 240 transitions. [2022-12-14 16:39:09,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 16:39:09,365 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:39:09,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:39:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:39:09,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-14 16:39:09,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:39:09,762 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 16:39:11,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:39:11,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 86 states and 246 transitions. [2022-12-14 16:39:11,166 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 246 transitions. [2022-12-14 16:39:11,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 16:39:11,166 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:39:11,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:39:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:39:11,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 34 conjunts are in the unsatisfiable core [2022-12-14 16:39:11,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:39:11,912 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 16:39:15,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:39:15,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 91 states and 269 transitions. [2022-12-14 16:39:15,303 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 269 transitions. [2022-12-14 16:39:15,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 16:39:15,304 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:39:15,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:39:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:39:15,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 34 conjunts are in the unsatisfiable core [2022-12-14 16:39:15,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:39:15,713 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 16:39:17,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:39:17,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 94 states and 275 transitions. [2022-12-14 16:39:17,854 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 275 transitions. [2022-12-14 16:39:17,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 16:39:17,855 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:39:17,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:39:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:39:17,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 16:39:17,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:39:18,223 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-12-14 16:39:27,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 16:39:27,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 98 states and 294 transitions. [2022-12-14 16:39:27,174 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 294 transitions. [2022-12-14 16:39:27,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-14 16:39:27,175 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 16:39:27,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:39:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 16:39:27,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 16:39:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 16:39:27,225 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 20 iterations. [2022-12-14 16:39:27,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 04:39:27 ImpRootNode [2022-12-14 16:39:27,251 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 16:39:27,251 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 16:39:27,251 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 16:39:27,251 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 16:39:27,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:38:43" (3/4) ... [2022-12-14 16:39:27,253 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 16:39:27,297 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 16:39:27,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 16:39:27,298 INFO L158 Benchmark]: Toolchain (without parser) took 44640.28ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 82.9MB in the end (delta: 25.8MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2022-12-14 16:39:27,298 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 142.6MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 16:39:27,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 154.84ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 98.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 16:39:27,299 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.59ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 96.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 16:39:27,299 INFO L158 Benchmark]: Boogie Preprocessor took 13.65ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 95.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 16:39:27,300 INFO L158 Benchmark]: RCFGBuilder took 209.54ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 82.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 16:39:27,300 INFO L158 Benchmark]: CodeCheck took 44190.77ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 86.0MB in the end (delta: -4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 16:39:27,301 INFO L158 Benchmark]: Witness Printer took 46.64ms. Allocated memory is still 142.6MB. Free memory was 86.0MB in the beginning and 82.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 16:39:27,303 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 3 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.1s, OverallIterations: 20, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2535 SdHoareTripleChecker+Valid, 13.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 646 mSDsluCounter, 1086 SdHoareTripleChecker+Invalid, 11.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 144 mSDsCounter, 2359 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8326 IncrementalHoareTripleChecker+Invalid, 10685 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2359 mSolverCounterUnsat, 942 mSDtfsCounter, 8326 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6931 GetRequests, 6516 SyntacticMatches, 85 SemanticMatches, 330 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51240 ImplicationChecksByTransitivity, 39.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 659 NumberOfCodeBlocks, 659 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 590 ConstructedInterpolants, 0 QuantifiedInterpolants, 3901 SizeOfPredicates, 84 NumberOfNonLiveVariables, 1877 ConjunctsInSsa, 407 ConjunctsInUnsatCore, 19 InterpolantComputations, 5 PerfectInterpolantSequences, 464/610 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 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L18] int counter = 0; [L20] long long a, b, p, q, r, s; [L21] int x, y; [L22] x = __VERIFIER_nondet_int() [L23] y = __VERIFIER_nondet_int() [L24] CALL assume_abort_if_not(x >= 1) VAL [\old(cond)=1, counter=0] [L8] COND FALSE !(!cond) [L24] RET assume_abort_if_not(x >= 1) VAL [counter=0, x=1, y=4] [L25] CALL assume_abort_if_not(y >= 1) VAL [\old(cond)=1, counter=0] [L8] COND FALSE !(!cond) [L25] RET assume_abort_if_not(y >= 1) VAL [counter=0, x=1, y=4] [L27] a = x [L28] b = y [L29] p = 1 [L30] q = 0 [L31] r = 0 [L32] s = 1 VAL [a=1, b=4, counter=0, p=1, q=0, r=0, s=1, x=1, y=4] [L34] EXPR counter++ VAL [a=1, b=4, counter=1, counter++=0, p=1, q=0, r=0, s=1, x=1, y=4] [L34] COND TRUE counter++<2 [L35] CALL __VERIFIER_assert(1 == p * s - r * q) VAL [\old(cond)=1, counter=1] [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L35] RET __VERIFIER_assert(1 == p * s - r * q) VAL [a=1, b=4, counter=1, p=1, q=0, r=0, s=1, x=1, y=4] [L36] CALL __VERIFIER_assert(a == y * r + x * p) VAL [\old(cond)=1, counter=1] [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L36] RET __VERIFIER_assert(a == y * r + x * p) VAL [a=1, b=4, counter=1, p=1, q=0, r=0, s=1, x=1, y=4] [L37] CALL __VERIFIER_assert(b == x * q + y * s) VAL [\old(cond)=1, counter=1] [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L37] RET __VERIFIER_assert(b == x * q + y * s) VAL [a=1, b=4, counter=1, p=1, q=0, r=0, s=1, x=1, y=4] [L39] COND FALSE !(!(a != b)) [L42] COND FALSE !(a > b) [L47] b = b - a [L48] q = q - p [L49] s = s - r VAL [a=1, b=3, counter=1, p=1, q=-1, r=0, s=1, x=1, y=4] [L34] EXPR counter++ VAL [a=1, b=3, counter=2, counter++=1, p=1, q=-1, r=0, s=1, x=1, y=4] [L34] COND TRUE counter++<2 [L35] CALL __VERIFIER_assert(1 == p * s - r * q) VAL [\old(cond)=1, counter=2] [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L35] RET __VERIFIER_assert(1 == p * s - r * q) VAL [a=1, b=3, counter=2, p=1, q=-1, r=0, s=1, x=1, y=4] [L36] CALL __VERIFIER_assert(a == y * r + x * p) VAL [\old(cond)=1, counter=2] [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L36] RET __VERIFIER_assert(a == y * r + x * p) VAL [a=1, b=3, counter=2, p=1, q=-1, r=0, s=1, x=1, y=4] [L37] CALL __VERIFIER_assert(b == x * q + y * s) VAL [\old(cond)=1, counter=2] [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L37] RET __VERIFIER_assert(b == x * q + y * s) VAL [a=1, b=3, counter=2, p=1, q=-1, r=0, s=1, x=1, y=4] [L39] COND FALSE !(!(a != b)) [L42] COND FALSE !(a > b) [L47] b = b - a [L48] q = q - p [L49] s = s - r VAL [a=1, b=2, counter=2, p=1, q=-2, r=0, s=1, x=1, y=4] [L34] EXPR counter++ VAL [a=1, b=2, counter=3, counter++=2, p=1, q=-2, r=0, s=1, x=1, y=4] [L34] COND FALSE !(counter++<2) [L53] CALL __VERIFIER_assert(a - b == 0) VAL [\old(cond)=0, counter=3] [L11] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=3] [L13] reach_error() VAL [\old(cond)=0, cond=0, counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 142.6MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 154.84ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 98.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.59ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 96.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.65ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 95.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 209.54ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 82.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 44190.77ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 86.0MB in the end (delta: -4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 46.64ms. Allocated memory is still 142.6MB. Free memory was 86.0MB in the beginning and 82.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-14 16:39:27,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f77c60c4-0498-4075-875b-c171f3c66fcd/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE