./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.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_4c26f917-b991-406a-852d-c14e80642b8d/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26f917-b991-406a-852d-c14e80642b8d/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_4c26f917-b991-406a-852d-c14e80642b8d/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26f917-b991-406a-852d-c14e80642b8d/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26f917-b991-406a-852d-c14e80642b8d/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_4c26f917-b991-406a-852d-c14e80642b8d/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 20f9ce6814caacb533e5bf2143ac3e067387f11238548a0b9b41e2de8e2cc436 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:39:18,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:39:18,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:39:18,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:39:18,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:39:18,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:39:18,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:39:18,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:39:18,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:39:18,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:39:18,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:39:18,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:39:18,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:39:18,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:39:18,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:39:18,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:39:18,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:39:18,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:39:18,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:39:18,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:39:18,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:39:18,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:39:18,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:39:18,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:39:18,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:39:18,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:39:18,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:39:18,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:39:18,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:39:18,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:39:18,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:39:18,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:39:18,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:39:18,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:39:18,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:39:18,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:39:18,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:39:18,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:39:18,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:39:18,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:39:18,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:39:18,496 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26f917-b991-406a-852d-c14e80642b8d/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:39:18,546 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:39:18,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:39:18,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:39:18,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:39:18,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:39:18,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:39:18,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:39:18,550 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:39:18,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:39:18,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:39:18,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:39:18,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:39:18,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:39:18,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:39:18,553 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:39:18,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:39:18,554 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:39:18,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:39:18,554 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:39:18,555 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:39:18,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:39:18,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:39:18,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:39:18,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:39:18,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:39:18,575 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:39:18,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:39:18,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:39:18,577 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_4c26f917-b991-406a-852d-c14e80642b8d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26f917-b991-406a-852d-c14e80642b8d/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20f9ce6814caacb533e5bf2143ac3e067387f11238548a0b9b41e2de8e2cc436 [2022-10-17 16:39:18,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:39:18,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:39:18,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:39:18,915 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:39:18,917 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:39:18,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26f917-b991-406a-852d-c14e80642b8d/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c [2022-10-17 16:39:18,989 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26f917-b991-406a-852d-c14e80642b8d/bin/ukojak-92XMlrwhuB/data/ef46815bb/a052369723a14db799714bcd6b7c3ef5/FLAGa305de476 [2022-10-17 16:39:19,388 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:39:19,389 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26f917-b991-406a-852d-c14e80642b8d/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c [2022-10-17 16:39:19,395 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26f917-b991-406a-852d-c14e80642b8d/bin/ukojak-92XMlrwhuB/data/ef46815bb/a052369723a14db799714bcd6b7c3ef5/FLAGa305de476 [2022-10-17 16:39:19,800 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26f917-b991-406a-852d-c14e80642b8d/bin/ukojak-92XMlrwhuB/data/ef46815bb/a052369723a14db799714bcd6b7c3ef5 [2022-10-17 16:39:19,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:39:19,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:39:19,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:39:19,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:39:19,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:39:19,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:39:19" (1/1) ... [2022-10-17 16:39:19,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17b247c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:19, skipping insertion in model container [2022-10-17 16:39:19,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:39:19" (1/1) ... [2022-10-17 16:39:19,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:39:19,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:39:20,013 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_4c26f917-b991-406a-852d-c14e80642b8d/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c[489,502] [2022-10-17 16:39:20,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:39:20,066 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:39:20,082 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_4c26f917-b991-406a-852d-c14e80642b8d/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c[489,502] [2022-10-17 16:39:20,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:39:20,127 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:39:20,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:20 WrapperNode [2022-10-17 16:39:20,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:39:20,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:39:20,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:39:20,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:39:20,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:20" (1/1) ... [2022-10-17 16:39:20,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:20" (1/1) ... [2022-10-17 16:39:20,169 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2022-10-17 16:39:20,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:39:20,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:39:20,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:39:20,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:39:20,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:20" (1/1) ... [2022-10-17 16:39:20,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:20" (1/1) ... [2022-10-17 16:39:20,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:20" (1/1) ... [2022-10-17 16:39:20,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:20" (1/1) ... [2022-10-17 16:39:20,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:20" (1/1) ... [2022-10-17 16:39:20,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:20" (1/1) ... [2022-10-17 16:39:20,191 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:20" (1/1) ... [2022-10-17 16:39:20,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:20" (1/1) ... [2022-10-17 16:39:20,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:39:20,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:39:20,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:39:20,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:39:20,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:20" (1/1) ... [2022-10-17 16:39:20,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:39:20,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26f917-b991-406a-852d-c14e80642b8d/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:39:20,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26f917-b991-406a-852d-c14e80642b8d/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:39:20,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26f917-b991-406a-852d-c14e80642b8d/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:39:20,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:39:20,276 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 16:39:20,277 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 16:39:20,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:39:20,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:39:20,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:39:20,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:39:20,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:39:20,341 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:39:20,344 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:39:20,491 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:39:20,535 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:39:20,535 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:39:20,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:39:20 BoogieIcfgContainer [2022-10-17 16:39:20,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:39:20,539 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:39:20,539 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:39:20,550 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:39:20,550 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:39:20" (1/1) ... [2022-10-17 16:39:20,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:39:20,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:20,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2022-10-17 16:39:20,628 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2022-10-17 16:39:20,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 16:39:20,633 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:20,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:20,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 16:39:20,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:21,130 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:39:21,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:21,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2022-10-17 16:39:21,278 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2022-10-17 16:39:21,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:39:21,280 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:21,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:21,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-17 16:39:21,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:21,596 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-17 16:39:21,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:21,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 35 states and 59 transitions. [2022-10-17 16:39:21,833 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 59 transitions. [2022-10-17 16:39:21,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:39:21,834 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:21,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:21,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-17 16:39:21,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:22,073 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-17 16:39:22,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:22,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 41 states and 74 transitions. [2022-10-17 16:39:22,861 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions. [2022-10-17 16:39:22,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:39:22,863 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:22,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:22,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-17 16:39:22,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:22,988 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-17 16:39:23,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:23,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 41 states and 74 transitions. [2022-10-17 16:39:23,008 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions. [2022-10-17 16:39:23,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:39:23,010 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:23,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:23,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-17 16:39:23,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:23,256 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-17 16:39:23,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:23,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 41 states and 74 transitions. [2022-10-17 16:39:23,375 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions. [2022-10-17 16:39:23,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:39:23,376 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:23,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:23,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-17 16:39:23,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:23,473 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-17 16:39:23,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:23,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 41 states and 74 transitions. [2022-10-17 16:39:23,496 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions. [2022-10-17 16:39:23,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:39:23,499 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:23,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:23,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-17 16:39:23,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:23,661 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-17 16:39:23,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:23,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 41 states and 74 transitions. [2022-10-17 16:39:23,687 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions. [2022-10-17 16:39:23,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:39:23,693 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:23,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:23,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-17 16:39:23,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:23,831 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-17 16:39:23,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:23,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 41 states and 74 transitions. [2022-10-17 16:39:23,848 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions. [2022-10-17 16:39:23,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:39:23,849 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:23,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:23,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 16:39:23,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:23,943 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:39:24,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:24,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 44 states and 81 transitions. [2022-10-17 16:39:24,283 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 81 transitions. [2022-10-17 16:39:24,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 16:39:24,284 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:24,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:24,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 16:39:24,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:24,450 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 16:39:24,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:24,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 48 states and 92 transitions. [2022-10-17 16:39:24,835 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 92 transitions. [2022-10-17 16:39:24,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 16:39:24,836 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:24,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:24,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-17 16:39:24,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:39:25,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:25,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 43 states and 80 transitions. [2022-10-17 16:39:25,458 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 80 transitions. [2022-10-17 16:39:25,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 16:39:25,459 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:25,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:25,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-17 16:39:25,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:25,585 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:39:26,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:26,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 46 states and 86 transitions. [2022-10-17 16:39:26,039 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 86 transitions. [2022-10-17 16:39:26,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-17 16:39:26,040 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:26,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:26,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 16:39:26,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:26,135 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 16:39:26,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:26,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 46 states and 85 transitions. [2022-10-17 16:39:26,196 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 85 transitions. [2022-10-17 16:39:26,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 16:39:26,197 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:26,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:26,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-17 16:39:26,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:26,532 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 16:39:27,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 50 states and 99 transitions. [2022-10-17 16:39:27,197 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 99 transitions. [2022-10-17 16:39:27,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-17 16:39:27,198 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:27,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:27,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 16:39:27,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:27,515 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-17 16:39:28,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:28,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 54 states and 109 transitions. [2022-10-17 16:39:28,585 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2022-10-17 16:39:28,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-17 16:39:28,586 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:28,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:28,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-17 16:39:28,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:28,986 WARN L640 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-10-17 16:39:29,653 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-17 16:39:33,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:33,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 62 states and 130 transitions. [2022-10-17 16:39:33,673 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 130 transitions. [2022-10-17 16:39:33,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-17 16:39:33,674 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:33,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:33,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-17 16:39:33,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:34,390 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-17 16:39:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:36,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 67 states and 143 transitions. [2022-10-17 16:39:36,286 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 143 transitions. [2022-10-17 16:39:36,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-17 16:39:36,287 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:36,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:36,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:39:36,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-17 16:39:39,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:39,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 72 states and 162 transitions. [2022-10-17 16:39:39,066 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 162 transitions. [2022-10-17 16:39:39,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-17 16:39:39,067 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:39,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:39,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-17 16:39:39,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:39,773 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-17 16:39:42,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:42,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 76 states and 173 transitions. [2022-10-17 16:39:42,467 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 173 transitions. [2022-10-17 16:39:42,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-17 16:39:42,468 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:42,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:42,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-17 16:39:42,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:42,817 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-17 16:39:44,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:44,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 79 states and 181 transitions. [2022-10-17 16:39:44,178 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 181 transitions. [2022-10-17 16:39:44,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 16:39:44,179 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:44,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:44,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:39:44,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:44,552 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-10-17 16:39:52,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 83 states and 191 transitions. [2022-10-17 16:39:52,674 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 191 transitions. [2022-10-17 16:39:52,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-17 16:39:52,675 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:52,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:52,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-17 16:39:52,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:39:54,212 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked.