./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.1.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH --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 64bit --witnessprinter.graph.data.programhash 633964762f437ec6522b7e31493723e1943bfa88db996201342b593a0a6527cc --- 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-e04fb08 [2022-11-16 08:51:14,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 08:51:14,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 08:51:14,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 08:51:14,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 08:51:14,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 08:51:14,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 08:51:14,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 08:51:14,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 08:51:14,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 08:51:14,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 08:51:14,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 08:51:14,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 08:51:14,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 08:51:14,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 08:51:14,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 08:51:14,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 08:51:14,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 08:51:14,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 08:51:14,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 08:51:14,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 08:51:14,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 08:51:14,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 08:51:14,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 08:51:14,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 08:51:14,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 08:51:14,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 08:51:14,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 08:51:14,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 08:51:14,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 08:51:14,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 08:51:14,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 08:51:14,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 08:51:14,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 08:51:14,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 08:51:14,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 08:51:14,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 08:51:14,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 08:51:14,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 08:51:14,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 08:51:14,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 08:51:14,252 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH/config/svcomp-Reach-64bit-Kojak_Default.epf [2022-11-16 08:51:14,281 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 08:51:14,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 08:51:14,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 08:51:14,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-16 08:51:14,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 08:51:14,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 08:51:14,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 08:51:14,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 08:51:14,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 08:51:14,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 08:51:14,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 08:51:14,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 08:51:14,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 08:51:14,293 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 08:51:14,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 08:51:14,294 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-16 08:51:14,294 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-16 08:51:14,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 08:51:14,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-16 08:51:14,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 08:51:14,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 08:51:14,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 08:51:14,296 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-16 08:51:14,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 08:51:14,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 08:51:14,296 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_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 633964762f437ec6522b7e31493723e1943bfa88db996201342b593a0a6527cc [2022-11-16 08:51:14,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 08:51:14,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 08:51:14,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 08:51:14,656 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 08:51:14,657 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 08:51:14,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.1.prop1-back-serstep.c [2022-11-16 08:51:14,745 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH/data/810a707c8/616d66e56bf14046b2a2deed99fbacca/FLAG77babfd4d [2022-11-16 08:51:15,536 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 08:51:15,537 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f4d16-5af2-4882-af2d-fce691c64b09/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.1.prop1-back-serstep.c [2022-11-16 08:51:15,568 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH/data/810a707c8/616d66e56bf14046b2a2deed99fbacca/FLAG77babfd4d [2022-11-16 08:51:15,654 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH/data/810a707c8/616d66e56bf14046b2a2deed99fbacca [2022-11-16 08:51:15,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 08:51:15,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 08:51:15,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 08:51:15,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 08:51:15,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 08:51:15,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:51:15" (1/1) ... [2022-11-16 08:51:15,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@460f7c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:51:15, skipping insertion in model container [2022-11-16 08:51:15,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:51:15" (1/1) ... [2022-11-16 08:51:15,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 08:51:15,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 08:51:16,098 WARN L229 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_a14f4d16-5af2-4882-af2d-fce691c64b09/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.1.prop1-back-serstep.c[1014,1027] [2022-11-16 08:51:16,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 08:51:16,781 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 08:51:16,793 WARN L229 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_a14f4d16-5af2-4882-af2d-fce691c64b09/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.1.prop1-back-serstep.c[1014,1027] [2022-11-16 08:51:17,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 08:51:17,083 INFO L208 MainTranslator]: Completed translation [2022-11-16 08:51:17,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:51:17 WrapperNode [2022-11-16 08:51:17,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 08:51:17,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 08:51:17,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 08:51:17,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 08:51:17,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:51:17" (1/1) ... [2022-11-16 08:51:17,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:51:17" (1/1) ... [2022-11-16 08:51:17,515 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6616 [2022-11-16 08:51:17,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 08:51:17,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 08:51:17,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 08:51:17,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 08:51:17,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:51:17" (1/1) ... [2022-11-16 08:51:17,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:51:17" (1/1) ... [2022-11-16 08:51:17,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:51:17" (1/1) ... [2022-11-16 08:51:17,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:51:17" (1/1) ... [2022-11-16 08:51:17,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:51:17" (1/1) ... [2022-11-16 08:51:17,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:51:17" (1/1) ... [2022-11-16 08:51:17,749 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:51:17" (1/1) ... [2022-11-16 08:51:17,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:51:17" (1/1) ... [2022-11-16 08:51:17,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 08:51:17,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 08:51:17,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 08:51:17,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 08:51:17,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:51:17" (1/1) ... [2022-11-16 08:51:17,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-16 08:51:17,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH/z3 [2022-11-16 08:51:17,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-16 08:51:17,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f4d16-5af2-4882-af2d-fce691c64b09/bin/ukojak-CydTVMUXoH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-16 08:51:17,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 08:51:17,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 08:51:18,721 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 08:51:18,724 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 08:51:27,874 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 08:52:02,750 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 08:52:02,750 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 08:52:02,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:52:02 BoogieIcfgContainer [2022-11-16 08:52:02,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 08:52:02,753 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-16 08:52:02,753 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-16 08:52:02,764 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-16 08:52:02,765 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:52:02" (1/1) ... [2022-11-16 08:52:02,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 08:52:02,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-16 08:52:02,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2022-11-16 08:52:02,827 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2022-11-16 08:52:02,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 08:52:02,830 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-16 08:52:02,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 08:52:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 08:52:08,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 08:52:19,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 08:52:29,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 08:52:31,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 08:52:33,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 08:52:36,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 08:52:36,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-16 08:52:36,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2022-11-16 08:52:36,617 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2022-11-16 08:52:36,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 08:52:36,617 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-16 08:52:36,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms