./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY --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 134c0db99ce5251339642354d8ec6411765b7878 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 03:48:01,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 03:48:01,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 03:48:01,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 03:48:01,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 03:48:01,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 03:48:01,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 03:48:01,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 03:48:01,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 03:48:01,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 03:48:01,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 03:48:01,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 03:48:01,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 03:48:01,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 03:48:01,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 03:48:01,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 03:48:01,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 03:48:01,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 03:48:01,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 03:48:01,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 03:48:01,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 03:48:01,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 03:48:01,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 03:48:01,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 03:48:01,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 03:48:01,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 03:48:01,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 03:48:01,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 03:48:01,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 03:48:01,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 03:48:01,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 03:48:01,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 03:48:01,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 03:48:01,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 03:48:01,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 03:48:01,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 03:48:01,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 03:48:01,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 03:48:01,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 03:48:01,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 03:48:01,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 03:48:01,233 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-10-13 03:48:01,285 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 03:48:01,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 03:48:01,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 03:48:01,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 03:48:01,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 03:48:01,288 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 03:48:01,288 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 03:48:01,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 03:48:01,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 03:48:01,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 03:48:01,290 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 03:48:01,290 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 03:48:01,291 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 03:48:01,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 03:48:01,291 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 03:48:01,291 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 03:48:01,291 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 03:48:01,292 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 03:48:01,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 03:48:01,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:48:01,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 03:48:01,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 03:48:01,296 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 03:48:01,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 03:48:01,296 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_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 134c0db99ce5251339642354d8ec6411765b7878 [2021-10-13 03:48:01,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 03:48:01,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 03:48:01,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 03:48:01,621 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 03:48:01,622 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 03:48:01,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-10-13 03:48:01,693 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/data/21bcfcfdf/8e6d32a143d24d188a7d2ca7623fc460/FLAGf51d33de1 [2021-10-13 03:48:02,194 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 03:48:02,195 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-10-13 03:48:02,213 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/data/21bcfcfdf/8e6d32a143d24d188a7d2ca7623fc460/FLAGf51d33de1 [2021-10-13 03:48:02,534 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/data/21bcfcfdf/8e6d32a143d24d188a7d2ca7623fc460 [2021-10-13 03:48:02,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 03:48:02,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 03:48:02,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 03:48:02,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 03:48:02,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 03:48:02,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:48:02" (1/1) ... [2021-10-13 03:48:02,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692e14ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:48:02, skipping insertion in model container [2021-10-13 03:48:02,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:48:02" (1/1) ... [2021-10-13 03:48:02,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 03:48:02,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 03:48:02,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:48:02,965 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 03:48:03,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:48:03,071 INFO L208 MainTranslator]: Completed translation [2021-10-13 03:48:03,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:48:03 WrapperNode [2021-10-13 03:48:03,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 03:48:03,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 03:48:03,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 03:48:03,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 03:48:03,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:48:03" (1/1) ... [2021-10-13 03:48:03,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:48:03" (1/1) ... [2021-10-13 03:48:03,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 03:48:03,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 03:48:03,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 03:48:03,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 03:48:03,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:48:03" (1/1) ... [2021-10-13 03:48:03,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:48:03" (1/1) ... [2021-10-13 03:48:03,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:48:03" (1/1) ... [2021-10-13 03:48:03,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:48:03" (1/1) ... [2021-10-13 03:48:03,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:48:03" (1/1) ... [2021-10-13 03:48:03,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:48:03" (1/1) ... [2021-10-13 03:48:03,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:48:03" (1/1) ... [2021-10-13 03:48:03,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 03:48:03,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 03:48:03,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 03:48:03,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 03:48:03,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:48:03" (1/1) ... [2021-10-13 03:48:03,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:48:03,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/z3 [2021-10-13 03:48:03,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 03:48:03,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 03:48:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 03:48:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 03:48:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 03:48:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 03:48:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 03:48:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 03:48:03,959 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 03:48:03,960 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 03:48:03,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:48:03 BoogieIcfgContainer [2021-10-13 03:48:03,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 03:48:03,964 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 03:48:03,964 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 03:48:03,975 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 03:48:03,994 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:48:03" (1/1) ... [2021-10-13 03:48:04,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 03:48:04,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:04,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 50 states and 55 transitions. [2021-10-13 03:48:04,039 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2021-10-13 03:48:04,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 03:48:04,042 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:04,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:48:04,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:04,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 52 states and 59 transitions. [2021-10-13 03:48:04,339 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2021-10-13 03:48:04,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 03:48:04,344 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:04,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:04,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:48:04,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:04,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 54 states and 63 transitions. [2021-10-13 03:48:04,814 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2021-10-13 03:48:04,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 03:48:04,815 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:04,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:04,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:48:05,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:05,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 64 transitions. [2021-10-13 03:48:05,067 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2021-10-13 03:48:05,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 03:48:05,068 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:05,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:05,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:48:05,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:05,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 56 states and 66 transitions. [2021-10-13 03:48:05,419 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2021-10-13 03:48:05,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 03:48:05,419 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:05,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:48:06,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:06,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 59 states and 72 transitions. [2021-10-13 03:48:06,168 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2021-10-13 03:48:06,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 03:48:06,169 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:06,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:06,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:48:06,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:06,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 59 states and 71 transitions. [2021-10-13 03:48:06,321 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2021-10-13 03:48:06,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 03:48:06,322 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:06,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:06,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:48:07,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:07,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 63 states and 80 transitions. [2021-10-13 03:48:07,604 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2021-10-13 03:48:07,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 03:48:07,605 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:07,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:07,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 03:48:08,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:08,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 68 states and 94 transitions. [2021-10-13 03:48:08,803 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2021-10-13 03:48:08,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 03:48:08,803 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:08,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:08,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 03:48:10,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:10,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 73 states and 106 transitions. [2021-10-13 03:48:10,131 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 106 transitions. [2021-10-13 03:48:10,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 03:48:10,131 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:10,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:10,159 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:48:10,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:10,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 74 states and 109 transitions. [2021-10-13 03:48:10,607 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 109 transitions. [2021-10-13 03:48:10,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 03:48:10,608 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:10,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:10,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:48:12,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:12,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 79 states and 125 transitions. [2021-10-13 03:48:12,273 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 125 transitions. [2021-10-13 03:48:12,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 03:48:12,274 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:12,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:12,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:48:13,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:13,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 81 states and 134 transitions. [2021-10-13 03:48:13,265 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 134 transitions. [2021-10-13 03:48:13,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 03:48:13,266 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:13,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:13,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 03:48:13,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:13,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 82 states and 141 transitions. [2021-10-13 03:48:13,543 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 141 transitions. [2021-10-13 03:48:13,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 03:48:13,543 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:13,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:13,778 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 03:48:14,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:14,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 85 states and 150 transitions. [2021-10-13 03:48:14,824 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 150 transitions. [2021-10-13 03:48:14,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 03:48:14,825 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:14,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 03:48:15,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:15,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 86 states and 150 transitions. [2021-10-13 03:48:15,122 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 150 transitions. [2021-10-13 03:48:15,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 03:48:15,123 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:15,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:15,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:48:15,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:15,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 90 states and 163 transitions. [2021-10-13 03:48:15,870 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 163 transitions. [2021-10-13 03:48:15,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 03:48:15,871 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:15,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:16,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 03:48:16,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:16,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 92 states and 172 transitions. [2021-10-13 03:48:16,950 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 172 transitions. [2021-10-13 03:48:16,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 03:48:16,951 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:16,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:16,970 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 03:48:17,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:17,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 92 states and 171 transitions. [2021-10-13 03:48:17,372 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 171 transitions. [2021-10-13 03:48:17,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 03:48:17,373 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:17,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:17,648 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:48:18,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:18,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 94 states and 172 transitions. [2021-10-13 03:48:18,603 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 172 transitions. [2021-10-13 03:48:18,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 03:48:18,604 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:18,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:18,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 03:48:19,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:19,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 96 states and 175 transitions. [2021-10-13 03:48:19,339 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 175 transitions. [2021-10-13 03:48:19,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 03:48:19,340 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:19,340 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:19,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 03:48:21,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:21,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 98 states and 180 transitions. [2021-10-13 03:48:21,020 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 180 transitions. [2021-10-13 03:48:21,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 03:48:21,022 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:21,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:21,068 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 03:48:21,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:21,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 100 states and 183 transitions. [2021-10-13 03:48:21,910 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 183 transitions. [2021-10-13 03:48:21,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 03:48:21,911 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:21,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:22,268 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:48:23,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 102 states and 186 transitions. [2021-10-13 03:48:23,350 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 186 transitions. [2021-10-13 03:48:23,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 03:48:23,351 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:23,351 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:23,373 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 03:48:23,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:23,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 103 states and 190 transitions. [2021-10-13 03:48:23,760 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 190 transitions. [2021-10-13 03:48:23,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 03:48:23,760 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:23,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:23,911 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 03:48:24,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:24,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 63 states and 90 transitions. [2021-10-13 03:48:24,434 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 90 transitions. [2021-10-13 03:48:24,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 03:48:24,434 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:24,435 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:24,776 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 03:48:25,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:25,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 58 states and 78 transitions. [2021-10-13 03:48:25,515 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 78 transitions. [2021-10-13 03:48:25,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 03:48:25,515 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:25,516 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:48:25,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 03:48:26,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:48:26,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 59 states and 80 transitions. [2021-10-13 03:48:26,204 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2021-10-13 03:48:26,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 03:48:26,204 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:48:26,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:48:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:48:26,222 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 03:48:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:48:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:48:26,294 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 03:48:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:48:26,354 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 28 iterations. [2021-10-13 03:48:26,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 03:48:26 ImpRootNode [2021-10-13 03:48:26,401 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 03:48:26,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 03:48:26,401 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 03:48:26,401 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 03:48:26,418 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:48:03" (3/4) ... [2021-10-13 03:48:26,420 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 03:48:26,517 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 03:48:26,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 03:48:26,524 INFO L168 Benchmark]: Toolchain (without parser) took 23984.41 ms. Allocated memory was 90.2 MB in the beginning and 197.1 MB in the end (delta: 107.0 MB). Free memory was 52.9 MB in the beginning and 68.1 MB in the end (delta: -15.2 MB). Peak memory consumption was 91.4 MB. Max. memory is 16.1 GB. [2021-10-13 03:48:26,525 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 90.2 MB. Free memory is still 70.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:48:26,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 530.27 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 52.6 MB in the beginning and 79.9 MB in the end (delta: -27.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 03:48:26,532 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.72 ms. Allocated memory is still 111.1 MB. Free memory was 79.9 MB in the beginning and 77.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:48:26,532 INFO L168 Benchmark]: Boogie Preprocessor took 49.43 ms. Allocated memory is still 111.1 MB. Free memory was 77.7 MB in the beginning and 76.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:48:26,533 INFO L168 Benchmark]: RCFGBuilder took 752.53 ms. Allocated memory is still 111.1 MB. Free memory was 76.2 MB in the beginning and 54.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-13 03:48:26,534 INFO L168 Benchmark]: CodeCheck took 22436.91 ms. Allocated memory was 111.1 MB in the beginning and 197.1 MB in the end (delta: 86.0 MB). Free memory was 54.7 MB in the beginning and 70.2 MB in the end (delta: -15.5 MB). Peak memory consumption was 72.5 MB. Max. memory is 16.1 GB. [2021-10-13 03:48:26,534 INFO L168 Benchmark]: Witness Printer took 120.90 ms. Allocated memory is still 197.1 MB. Free memory was 70.2 MB in the beginning and 68.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:48:26,537 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 50 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 22341.6ms, OverallIterations: 28, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 436346880 SDtfs, 341278504 SDslu, 134234112 SDs, 0 SdLazy, 2089276098 SolverSat, 678751678 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10958.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2151 GetRequests, 1810 SyntacticMatches, 49 SemanticMatches, 292 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40453 ImplicationChecksByTransitivity, 19462.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 67.0ms SsaConstructionTime, 459.0ms SatisfiabilityAnalysisTime, 3324.1ms InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 1331 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 19 PerfectInterpolantSequences, 47/75 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 517]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L527] int N = __VERIFIER_nondet_int(); [L528] int M = __VERIFIER_nondet_int(); [L529] COND FALSE !(N < 1) [L532] COND TRUE M < 1 [L533] M = 1 [L535] int *size = (int*) __builtin_alloca (N * sizeof(int)); [L536] int *val = (int*) __builtin_alloca (N * sizeof(int)); [L537] int *cost = (int*) __builtin_alloca (M * sizeof(int)); [L538] int *best = (int*) __builtin_alloca (M * sizeof(int)); [L540] int i = 0; [L540] COND TRUE i < N [L542] size[i] = __VERIFIER_nondet_int() [L543] val[i] = __VERIFIER_nondet_int() [L540] i++ [L540] COND FALSE !(i < N) [L546] int i = 0; [L546] COND TRUE i < M [L548] cost[i] = __VERIFIER_nondet_int() [L546] i++ [L546] COND FALSE !(i < M) [L514] int i, j; [L515] j = 1 [L515] COND TRUE j <= N [L516] i = 1 [L516] COND TRUE i <= M [L517] size[j] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 90.2 MB. Free memory is still 70.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 530.27 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 52.6 MB in the beginning and 79.9 MB in the end (delta: -27.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.72 ms. Allocated memory is still 111.1 MB. Free memory was 79.9 MB in the beginning and 77.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.43 ms. Allocated memory is still 111.1 MB. Free memory was 77.7 MB in the beginning and 76.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 752.53 ms. Allocated memory is still 111.1 MB. Free memory was 76.2 MB in the beginning and 54.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 22436.91 ms. Allocated memory was 111.1 MB in the beginning and 197.1 MB in the end (delta: 86.0 MB). Free memory was 54.7 MB in the beginning and 70.2 MB in the end (delta: -15.5 MB). Peak memory consumption was 72.5 MB. Max. memory is 16.1 GB. * Witness Printer took 120.90 ms. Allocated memory is still 197.1 MB. Free memory was 70.2 MB in the beginning and 68.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 03:48:26,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b32544f8-a2b0-48d1-a679-da933f84d489/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...