./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/verifythis/prefixsum_iter.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/bin/ukojak-rkRKPMF4O4/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/verifythis/prefixsum_iter.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4cd641fa41c29ed0240eed782d3555502472fe8bb63d504547076d8eeefa2c0d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 19:59:21,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 19:59:21,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 19:59:21,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 19:59:21,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 19:59:21,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 19:59:21,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 19:59:21,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 19:59:21,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 19:59:21,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 19:59:21,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 19:59:21,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 19:59:21,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 19:59:21,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 19:59:21,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 19:59:21,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 19:59:21,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 19:59:21,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 19:59:21,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 19:59:21,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 19:59:21,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 19:59:21,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 19:59:21,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 19:59:21,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 19:59:21,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 19:59:21,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 19:59:21,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 19:59:21,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 19:59:21,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 19:59:21,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 19:59:21,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 19:59:21,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 19:59:21,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 19:59:21,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 19:59:21,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 19:59:21,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 19:59:21,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 19:59:21,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 19:59:21,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 19:59:21,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 19:59:21,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 19:59:21,230 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-12-14 19:59:21,248 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 19:59:21,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 19:59:21,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 19:59:21,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 19:59:21,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 19:59:21,251 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 19:59:21,251 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 19:59:21,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 19:59:21,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 19:59:21,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 19:59:21,251 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 19:59:21,251 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 19:59:21,252 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 19:59:21,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 19:59:21,252 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 19:59:21,252 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 19:59:21,252 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 19:59:21,252 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 19:59:21,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 19:59:21,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 19:59:21,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 19:59:21,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 19:59:21,253 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 19:59:21,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 19:59:21,254 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_dc41b8f8-7621-479f-a53c-55b15505ce4f/bin/ukojak-rkRKPMF4O4/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4cd641fa41c29ed0240eed782d3555502472fe8bb63d504547076d8eeefa2c0d [2022-12-14 19:59:21,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 19:59:21,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 19:59:21,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 19:59:21,458 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 19:59:21,459 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 19:59:21,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/verifythis/prefixsum_iter.c [2022-12-14 19:59:24,062 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 19:59:24,205 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 19:59:24,205 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/sv-benchmarks/c/verifythis/prefixsum_iter.c [2022-12-14 19:59:24,211 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/bin/ukojak-rkRKPMF4O4/data/152c7e5f4/18cd12b751ab49f0af1fe411ea6206a7/FLAG35acf4db3 [2022-12-14 19:59:24,223 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/bin/ukojak-rkRKPMF4O4/data/152c7e5f4/18cd12b751ab49f0af1fe411ea6206a7 [2022-12-14 19:59:24,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 19:59:24,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 19:59:24,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 19:59:24,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 19:59:24,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 19:59:24,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:59:24" (1/1) ... [2022-12-14 19:59:24,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1befe0e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:24, skipping insertion in model container [2022-12-14 19:59:24,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:59:24" (1/1) ... [2022-12-14 19:59:24,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 19:59:24,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 19:59:24,347 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/sv-benchmarks/c/verifythis/prefixsum_iter.c[526,539] [2022-12-14 19:59:24,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 19:59:24,374 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 19:59:24,383 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/sv-benchmarks/c/verifythis/prefixsum_iter.c[526,539] [2022-12-14 19:59:24,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 19:59:24,402 INFO L208 MainTranslator]: Completed translation [2022-12-14 19:59:24,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:24 WrapperNode [2022-12-14 19:59:24,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 19:59:24,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 19:59:24,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 19:59:24,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 19:59:24,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:24" (1/1) ... [2022-12-14 19:59:24,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:24" (1/1) ... [2022-12-14 19:59:24,432 INFO L138 Inliner]: procedures = 22, calls = 33, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 139 [2022-12-14 19:59:24,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 19:59:24,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 19:59:24,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 19:59:24,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 19:59:24,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:24" (1/1) ... [2022-12-14 19:59:24,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:24" (1/1) ... [2022-12-14 19:59:24,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:24" (1/1) ... [2022-12-14 19:59:24,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:24" (1/1) ... [2022-12-14 19:59:24,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:24" (1/1) ... [2022-12-14 19:59:24,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:24" (1/1) ... [2022-12-14 19:59:24,451 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:24" (1/1) ... [2022-12-14 19:59:24,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:24" (1/1) ... [2022-12-14 19:59:24,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 19:59:24,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 19:59:24,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 19:59:24,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 19:59:24,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:24" (1/1) ... [2022-12-14 19:59:24,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 19:59:24,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 19:59:24,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 19:59:24,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc41b8f8-7621-479f-a53c-55b15505ce4f/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 19:59:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 19:59:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 19:59:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 19:59:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 19:59:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 19:59:24,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 19:59:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 19:59:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 19:59:24,592 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 19:59:24,594 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 19:59:24,886 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 19:59:24,981 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 19:59:24,981 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-12-14 19:59:24,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:59:24 BoogieIcfgContainer [2022-12-14 19:59:24,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 19:59:24,985 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 19:59:24,985 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 19:59:24,994 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 19:59:24,994 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:59:24" (1/1) ... [2022-12-14 19:59:25,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 19:59:25,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:59:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 66 states and 73 transitions. [2022-12-14 19:59:25,050 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2022-12-14 19:59:25,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 19:59:25,052 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:59:25,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:59:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:59:25,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:59:25,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:59:25,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 68 states and 77 transitions. [2022-12-14 19:59:25,389 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2022-12-14 19:59:25,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 19:59:25,392 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:59:25,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:59:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:59:25,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:59:26,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:59:26,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 71 states and 87 transitions. [2022-12-14 19:59:26,148 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 87 transitions. [2022-12-14 19:59:26,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 19:59:26,148 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:59:26,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:59:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:59:26,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:59:27,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:59:27,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 73 states and 99 transitions. [2022-12-14 19:59:27,517 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 99 transitions. [2022-12-14 19:59:27,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 19:59:27,518 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:59:27,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:59:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:59:27,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:59:27,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:59:27,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 75 states and 103 transitions. [2022-12-14 19:59:27,992 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2022-12-14 19:59:27,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 19:59:27,993 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:59:27,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:59:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:59:28,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:59:29,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:59:29,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 78 states and 112 transitions. [2022-12-14 19:59:29,105 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2022-12-14 19:59:29,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 19:59:29,105 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:59:29,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:59:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:59:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:59:30,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:59:30,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 79 states and 114 transitions. [2022-12-14 19:59:30,089 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 114 transitions. [2022-12-14 19:59:30,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 19:59:30,090 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:59:30,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:59:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:59:30,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:59:35,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 19:59:35,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:59:35,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 81 states and 126 transitions. [2022-12-14 19:59:35,330 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 126 transitions. [2022-12-14 19:59:35,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 19:59:35,330 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:59:35,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:59:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:59:35,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:59:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:59:39,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 83 states and 139 transitions. [2022-12-14 19:59:39,570 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 139 transitions. [2022-12-14 19:59:39,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 19:59:39,570 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:59:39,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:59:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:59:39,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:59:42,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:59:42,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 84 states and 144 transitions. [2022-12-14 19:59:42,003 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 144 transitions. [2022-12-14 19:59:42,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 19:59:42,004 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:59:42,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:59:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:59:42,067 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 19:59:43,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:59:43,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 84 states and 143 transitions. [2022-12-14 19:59:43,162 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 143 transitions. [2022-12-14 19:59:43,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 19:59:43,162 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:59:43,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:59:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:59:45,358 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:00:24,963 WARN L233 SmtUtils]: Spent 22.50s on a formula simplification. DAG size of input: 73 DAG size of output: 64 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 20:01:05,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:01:15,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:01:25,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:01:37,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:01:47,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:01:57,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:02:07,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:02:17,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:02:28,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:02:38,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:02:49,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:02:57,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.25s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:03:16,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.78s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:03:16,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:03:16,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 85 states and 155 transitions. [2022-12-14 20:03:16,303 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 155 transitions. [2022-12-14 20:03:16,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 20:03:16,303 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:03:16,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:03:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:03:19,139 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:03:31,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:03:41,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:03:51,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:03:54,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:03:57,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:04:11,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:04:22,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:04:33,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:04:34,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:04:35,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:04:35,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 87 states and 181 transitions. [2022-12-14 20:04:35,290 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 181 transitions. [2022-12-14 20:04:35,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 20:04:35,291 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:04:35,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:04:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:04:36,528 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:05:24,607 WARN L233 SmtUtils]: Spent 29.50s on a formula simplification. DAG size of input: 87 DAG size of output: 62 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 20:06:17,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.05s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:06:27,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:06:37,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:06:47,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:06:51,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:06:53,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:07:03,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:07:16,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:07:27,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:07:37,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:07:44,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:07:44,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 88 states and 193 transitions. [2022-12-14 20:07:44,211 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 193 transitions. [2022-12-14 20:07:44,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 20:07:44,211 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:07:44,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:07:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:07:48,729 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:08:15,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:08:20,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:08:30,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:08:31,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:08:41,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:08:52,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:08:56,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:08:56,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 89 states and 210 transitions. [2022-12-14 20:08:56,491 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 210 transitions. [2022-12-14 20:08:56,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 20:08:56,491 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:08:56,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:08:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:09:08,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:09:57,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:10:07,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:10:09,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:10:11,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:10:21,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:10:32,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:10:32,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:10:32,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 90 states and 217 transitions. [2022-12-14 20:10:32,416 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 217 transitions. [2022-12-14 20:10:32,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 20:10:32,416 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:10:32,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:10:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:10:34,114 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:10:41,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:10:52,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:10:54,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:11:04,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:11:14,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:11:14,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:11:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 91 states and 219 transitions. [2022-12-14 20:11:14,583 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 219 transitions. [2022-12-14 20:11:14,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 20:11:14,584 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:11:14,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:11:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:11:14,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:11:16,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:11:16,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 91 states and 218 transitions. [2022-12-14 20:11:16,544 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 218 transitions. [2022-12-14 20:11:16,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 20:11:16,545 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:11:16,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:11:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:11:18,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:11:34,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:11:34,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 95 states and 227 transitions. [2022-12-14 20:11:34,359 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 227 transitions. [2022-12-14 20:11:34,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 20:11:34,359 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:11:34,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:11:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:12:07,545 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:12:19,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:12:51,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:13:02,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:13:17,420 WARN L233 SmtUtils]: Spent 9.44s on a formula simplification. DAG size of input: 117 DAG size of output: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 20:13:57,059 WARN L233 SmtUtils]: Spent 6.14s on a formula simplification. DAG size of input: 119 DAG size of output: 73 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 20:14:07,090 WARN L859 $PredicateComparison]: unable to prove that (not (let ((.cse0 (* |c_ULTIMATE.start_main_~n~0#1| 4)) (.cse1 (* |c_ULTIMATE.start_is_pow2_~x#1| 4)) (.cse3 (div (+ |c_ULTIMATE.start_main_~n~0#1| (* |c_ULTIMATE.start_is_pow2_~x#1| (- 4))) 1073741824))) (and (<= (+ |c_ULTIMATE.start_main_~n~0#1| (* |c_ULTIMATE.start_is_pow2_~x#1| 12)) (* (div (+ .cse0 (- (div (+ |c_ULTIMATE.start_main_~n~0#1| .cse1 7) 8)) (* |c_ULTIMATE.start_is_pow2_~x#1| 47)) 62) 16)) (<= (div |c_ULTIMATE.start_main_~n~0#1| 1073741824) 1) (not (<= (+ |c_ULTIMATE.start_main_~n~0#1| (* |c_ULTIMATE.start_is_pow2_~x#1| 6)) (* 8 (div (+ (- (div (+ |c_ULTIMATE.start_main_~n~0#1| 3 (* |c_ULTIMATE.start_is_pow2_~x#1| 2)) 4)) .cse0 (* 23 |c_ULTIMATE.start_is_pow2_~x#1|)) 30)))) (<= |c_ULTIMATE.start_is_pow2_~x#1| (let ((.cse2 (div |c_ULTIMATE.start_is_pow2_~x#1| 2))) (+ (* (div (+ |c_ULTIMATE.start_is_pow2_~x#1| (* (- 2) .cse2)) 4294967296) 4294967296) (* .cse2 2)))) (<= 0 .cse3) (<= |c_ULTIMATE.start_main_~n~0#1| (+ .cse1 (* .cse3 1073741824) (* 8589934592 (div (+ 536870911 (- |c_ULTIMATE.start_is_pow2_~x#1|)) 2147483648)) 3)) (not (<= (+ (div |c_ULTIMATE.start_is_pow2_~x#1| 4294967296) 1) 0))))) is different from true