./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound20.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_624d6f71-5d0c-4d65-a917-cac89a5a0a74/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624d6f71-5d0c-4d65-a917-cac89a5a0a74/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_624d6f71-5d0c-4d65-a917-cac89a5a0a74/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624d6f71-5d0c-4d65-a917-cac89a5a0a74/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624d6f71-5d0c-4d65-a917-cac89a5a0a74/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_624d6f71-5d0c-4d65-a917-cac89a5a0a74/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 4aef2940f6d326843487f003443fc222e2136d386047f492f8bd5c7e21afc8f5 --- 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 17:02:29,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:02:29,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:02:29,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:02:29,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:02:29,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:02:29,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:02:29,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:02:29,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:02:29,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:02:29,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:02:29,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:02:29,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:02:29,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:02:29,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:02:29,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:02:29,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:02:29,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:02:29,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:02:29,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:02:29,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:02:29,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:02:29,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:02:29,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:02:29,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:02:29,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:02:29,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:02:29,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:02:29,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:02:29,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:02:29,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:02:29,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:02:29,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:02:29,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:02:29,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:02:29,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:02:29,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:02:29,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:02:29,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:02:29,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:02:29,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:02:29,518 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624d6f71-5d0c-4d65-a917-cac89a5a0a74/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 17:02:29,582 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:02:29,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:02:29,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:02:29,586 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 17:02:29,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:02:29,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:02:29,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:02:29,588 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:02:29,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:02:29,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:02:29,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:02:29,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:02:29,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:02:29,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:02:29,590 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:02:29,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:02:29,591 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:02:29,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:02:29,591 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:02:29,592 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:02:29,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:02:29,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:02:29,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:02:29,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:02:29,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:02:29,593 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:02:29,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:02:29,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:02:29,594 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_624d6f71-5d0c-4d65-a917-cac89a5a0a74/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624d6f71-5d0c-4d65-a917-cac89a5a0a74/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4aef2940f6d326843487f003443fc222e2136d386047f492f8bd5c7e21afc8f5 [2022-10-17 17:02:29,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:02:29,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:02:29,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:02:29,886 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:02:29,887 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:02:29,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624d6f71-5d0c-4d65-a917-cac89a5a0a74/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound20.c [2022-10-17 17:02:29,967 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624d6f71-5d0c-4d65-a917-cac89a5a0a74/bin/ukojak-92XMlrwhuB/data/cb39a8049/d215ec5498064222a1bb5ce0ecedbc6f/FLAG560ced180 [2022-10-17 17:02:30,426 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:02:30,426 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624d6f71-5d0c-4d65-a917-cac89a5a0a74/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound20.c [2022-10-17 17:02:30,434 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624d6f71-5d0c-4d65-a917-cac89a5a0a74/bin/ukojak-92XMlrwhuB/data/cb39a8049/d215ec5498064222a1bb5ce0ecedbc6f/FLAG560ced180 [2022-10-17 17:02:30,792 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624d6f71-5d0c-4d65-a917-cac89a5a0a74/bin/ukojak-92XMlrwhuB/data/cb39a8049/d215ec5498064222a1bb5ce0ecedbc6f [2022-10-17 17:02:30,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:02:30,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:02:30,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:02:30,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:02:30,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:02:30,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:02:30" (1/1) ... [2022-10-17 17:02:30,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a02fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:02:30, skipping insertion in model container [2022-10-17 17:02:30,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:02:30" (1/1) ... [2022-10-17 17:02:30,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:02:30,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:02:31,004 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_624d6f71-5d0c-4d65-a917-cac89a5a0a74/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound20.c[489,502] [2022-10-17 17:02:31,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:02:31,057 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:02:31,073 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_624d6f71-5d0c-4d65-a917-cac89a5a0a74/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound20.c[489,502] [2022-10-17 17:02:31,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:02:31,116 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:02:31,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:02:31 WrapperNode [2022-10-17 17:02:31,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:02:31,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:02:31,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:02:31,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:02:31,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:02:31" (1/1) ... [2022-10-17 17:02:31,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:02:31" (1/1) ... [2022-10-17 17:02:31,166 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2022-10-17 17:02:31,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:02:31,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:02:31,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:02:31,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:02:31,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:02:31" (1/1) ... [2022-10-17 17:02:31,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:02:31" (1/1) ... [2022-10-17 17:02:31,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:02:31" (1/1) ... [2022-10-17 17:02:31,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:02:31" (1/1) ... [2022-10-17 17:02:31,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:02:31" (1/1) ... [2022-10-17 17:02:31,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:02:31" (1/1) ... [2022-10-17 17:02:31,207 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:02:31" (1/1) ... [2022-10-17 17:02:31,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:02:31" (1/1) ... [2022-10-17 17:02:31,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:02:31,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:02:31,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:02:31,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:02:31,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:02:31" (1/1) ... [2022-10-17 17:02:31,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:02:31,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624d6f71-5d0c-4d65-a917-cac89a5a0a74/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:02:31,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624d6f71-5d0c-4d65-a917-cac89a5a0a74/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:02:31,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624d6f71-5d0c-4d65-a917-cac89a5a0a74/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:02:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:02:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 17:02:31,316 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 17:02:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:02:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:02:31,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:02:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 17:02:31,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 17:02:31,384 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:02:31,386 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:02:31,617 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:02:31,688 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:02:31,694 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:02:31,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:02:31 BoogieIcfgContainer [2022-10-17 17:02:31,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:02:31,705 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:02:31,705 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:02:31,727 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:02:31,727 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:02:31" (1/1) ... [2022-10-17 17:02:31,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:02:31,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:02:31,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2022-10-17 17:02:31,793 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2022-10-17 17:02:31,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 17:02:31,798 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:02:31,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:02:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:02:31,946 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 17:02:32,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:02:32,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2022-10-17 17:02:32,005 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2022-10-17 17:02:32,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 17:02:32,006 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:02:32,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:02:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:02:32,250 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 17:02:32,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:02:32,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2022-10-17 17:02:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2022-10-17 17:02:32,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 17:02:32,343 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:02:32,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:02:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:02:32,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 17:02:32,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:02:32,545 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 17:02:32,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:02:32,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 50 transitions. [2022-10-17 17:02:32,920 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 50 transitions. [2022-10-17 17:02:32,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 17:02:32,922 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:02:32,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:02:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:02:33,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-17 17:02:33,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:02:33,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 17:02:34,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:02:34,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 59 transitions. [2022-10-17 17:02:34,018 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 59 transitions. [2022-10-17 17:02:34,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 17:02:34,019 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:02:34,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:02:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:02:34,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 17:02:34,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:02:34,324 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 17:02:35,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:02:35,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 40 states and 70 transitions. [2022-10-17 17:02:35,480 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 70 transitions. [2022-10-17 17:02:35,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 17:02:35,482 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:02:35,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:02:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:02:35,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 17:02:35,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:02:35,574 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 17:02:35,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:02:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 41 states and 72 transitions. [2022-10-17 17:02:35,641 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 72 transitions. [2022-10-17 17:02:35,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-17 17:02:35,642 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:02:35,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:02:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:02:35,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-17 17:02:35,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:02:35,972 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-17 17:02:37,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:02:37,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 46 states and 87 transitions. [2022-10-17 17:02:37,021 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 87 transitions. [2022-10-17 17:02:37,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-17 17:02:37,022 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:02:37,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:02:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:02:37,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 17:02:37,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:02:37,254 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 17:02:39,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:02:39,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 56 states and 137 transitions. [2022-10-17 17:02:39,014 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 137 transitions. [2022-10-17 17:02:39,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-17 17:02:39,016 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:02:39,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:02:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:02:39,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-17 17:02:39,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:02:39,388 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-17 17:02:40,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:02:40,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 58 states and 141 transitions. [2022-10-17 17:02:40,326 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 141 transitions. [2022-10-17 17:02:40,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 17:02:40,334 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:02:40,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:02:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:02:40,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 17:02:40,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:02:40,583 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 17:02:41,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:02:41,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 62 states and 159 transitions. [2022-10-17 17:02:41,635 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 159 transitions. [2022-10-17 17:02:41,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 17:02:41,637 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:02:41,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:02:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:02:41,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-17 17:02:41,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:02:42,605 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-17 17:02:48,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:02:48,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 74 states and 207 transitions. [2022-10-17 17:02:48,031 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 207 transitions. [2022-10-17 17:02:48,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 17:02:48,033 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:02:48,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:02:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:02:48,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-17 17:02:48,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:02:48,876 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-17 17:02:50,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:02:50,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 76 states and 218 transitions. [2022-10-17 17:02:50,610 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 218 transitions. [2022-10-17 17:02:50,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 17:02:50,612 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:02:50,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:02:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:02:50,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-17 17:02:50,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:02:51,243 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-17 17:02:53,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:02:53,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 79 states and 228 transitions. [2022-10-17 17:02:53,395 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 228 transitions. [2022-10-17 17:02:53,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-17 17:02:53,397 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:02:53,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:02:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:02:53,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 17:02:53,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:02:53,932 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 17:02:58,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:02:58,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 82 states and 243 transitions. [2022-10-17 17:02:58,059 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 243 transitions. [2022-10-17 17:02:58,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-17 17:02:58,061 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:02:58,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:02:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:02:58,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-17 17:02:58,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:02:58,956 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.