./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --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 eba94063d18105b44b9503ed48a138d00b9b850cd51aae19571aab60c15e268e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:51:25,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:51:25,995 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-24 22:51:26,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:51:26,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:51:26,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:51:26,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:51:26,031 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:51:26,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:51:26,032 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:51:26,033 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:51:26,033 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:51:26,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:51:26,034 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:51:26,035 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:51:26,035 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 22:51:26,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:51:26,036 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:51:26,037 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:51:26,037 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:51:26,038 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:51:26,040 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:51:26,040 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:51:26,041 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:51:26,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:26,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:51:26,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:51:26,043 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:51:26,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:51:26,044 INFO L153 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_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eba94063d18105b44b9503ed48a138d00b9b850cd51aae19571aab60c15e268e [2023-11-24 22:51:26,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:51:26,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:51:26,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:51:26,422 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:51:26,422 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:51:26,424 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2023-11-24 22:51:29,615 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:51:29,964 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:51:29,965 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2023-11-24 22:51:29,992 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/data/84068f0b4/7d073cd9c52f46e5a6e1d7d37e0db60d/FLAG69232fc2e [2023-11-24 22:51:30,008 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/data/84068f0b4/7d073cd9c52f46e5a6e1d7d37e0db60d [2023-11-24 22:51:30,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:51:30,018 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:51:30,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:30,021 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:51:30,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:51:30,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d37f1a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30, skipping insertion in model container [2023-11-24 22:51:30,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,104 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:51:30,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:30,392 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:51:30,436 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:30,468 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:51:30,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30 WrapperNode [2023-11-24 22:51:30,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:30,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:30,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:51:30,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:51:30,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,514 INFO L138 Inliner]: procedures = 116, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2023-11-24 22:51:30,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:30,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:51:30,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:51:30,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:51:30,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,529 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,529 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,534 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,540 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:51:30,544 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:51:30,544 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:51:30,544 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:51:30,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:30,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:51:30,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:51:30,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:51:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:51:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:51:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:51:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:51:30,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:51:30,773 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:51:30,776 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:51:30,924 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:51:30,999 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:51:31,008 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:51:31,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:31 BoogieIcfgContainer [2023-11-24 22:51:31,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:51:31,011 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:51:31,011 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:51:31,021 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:51:31,022 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:51:31,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:31,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-24 22:51:31,085 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-24 22:51:31,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:51:31,088 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:31,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:31,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:31,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:31,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-24 22:51:31,618 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-24 22:51:31,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:51:31,618 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:31,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:32,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:32,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:32,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-11-24 22:51:32,664 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-11-24 22:51:32,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:51:32,666 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:32,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:32,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:33,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:33,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2023-11-24 22:51:33,118 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2023-11-24 22:51:33,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:51:33,119 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:33,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:33,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:33,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:33,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-24 22:51:33,449 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-24 22:51:33,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:51:33,450 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:33,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:34,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:36,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2023-11-24 22:51:36,149 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-11-24 22:51:36,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:51:36,150 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:36,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:36,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:38,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2023-11-24 22:51:38,240 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2023-11-24 22:51:38,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 22:51:38,241 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:38,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:39,985 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:46,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:46,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 27 states and 43 transitions. [2023-11-24 22:51:46,506 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2023-11-24 22:51:46,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:51:46,507 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:46,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:46,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:51:48,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:48,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 29 states and 44 transitions. [2023-11-24 22:51:48,563 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2023-11-24 22:51:48,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:51:48,564 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:48,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:51,061 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:52:03,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:03,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 33 states and 58 transitions. [2023-11-24 22:52:03,267 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 58 transitions. [2023-11-24 22:52:03,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 22:52:03,268 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:03,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:05,175 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:52:10,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:10,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 25 transitions. [2023-11-24 22:52:10,507 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2023-11-24 22:52:10,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:52:10,508 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-11-24 22:52:10,515 INFO L751 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2023-11-24 22:52:11,478 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2023-11-24 22:52:11,481 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (@diff (Array Int Int) (Array Int Int) Int) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.getBinaryOperator(Term2Expression.java:587) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translateSelect(Term2Expression.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:163) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:401) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.lib.translation.DefaultTranslator.translateExpressionWithContext(DefaultTranslator.java:165) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionWithContext(ModelTranslationContainer.java:101) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionWithContextToString(ModelTranslationContainer.java:91) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.BacktranslationService.translateExpressionWithContextToString(BacktranslationService.java:98) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.(InvariantResult.java:47) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.createInvariantResults(CodeCheckObserver.java:563) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:521) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-24 22:52:11,485 INFO L158 Benchmark]: Toolchain (without parser) took 41467.05ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 109.5MB in the beginning and 74.6MB in the end (delta: 35.0MB). Peak memory consumption was 102.1MB. Max. memory is 16.1GB. [2023-11-24 22:52:11,485 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:52:11,486 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.16ms. Allocated memory is still 144.7MB. Free memory was 109.5MB in the beginning and 93.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 22:52:11,487 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.36ms. Allocated memory is still 144.7MB. Free memory was 93.3MB in the beginning and 91.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:52:11,487 INFO L158 Benchmark]: Boogie Preprocessor took 27.03ms. Allocated memory is still 144.7MB. Free memory was 91.2MB in the beginning and 90.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:52:11,488 INFO L158 Benchmark]: RCFGBuilder took 466.32ms. Allocated memory is still 144.7MB. Free memory was 90.1MB in the beginning and 76.0MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:52:11,489 INFO L158 Benchmark]: CodeCheck took 40473.14ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 76.0MB in the beginning and 74.6MB in the end (delta: 1.4MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. [2023-11-24 22:52:11,492 INFO L338 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, 12 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 39.5s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 193 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 95 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111 mSDsCounter, 343 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1049 IncrementalHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 343 mSolverCounterUnsat, 78 mSDtfsCounter, 1049 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 918 GetRequests, 693 SyntacticMatches, 23 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12871 ImplicationChecksByTransitivity, 34.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 1154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 14/55 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (@diff (Array Int Int) (Array Int Int) Int) de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: IllegalArgumentException: unknown symbol (@diff (Array Int Int) (Array Int Int) Int): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.getBinaryOperator(Term2Expression.java:587) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.16ms. Allocated memory is still 144.7MB. Free memory was 109.5MB in the beginning and 93.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.36ms. Allocated memory is still 144.7MB. Free memory was 93.3MB in the beginning and 91.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.03ms. Allocated memory is still 144.7MB. Free memory was 91.2MB in the beginning and 90.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 466.32ms. Allocated memory is still 144.7MB. Free memory was 90.1MB in the beginning and 76.0MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 40473.14ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 76.0MB in the beginning and 74.6MB in the end (delta: 1.4MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-24 22:52:11,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --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 eba94063d18105b44b9503ed48a138d00b9b850cd51aae19571aab60c15e268e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:52:14,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:52:14,217 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2023-11-24 22:52:14,271 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:52:14,273 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:52:14,274 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:52:14,275 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:52:14,275 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:52:14,276 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:52:14,281 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:52:14,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:52:14,282 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:52:14,282 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:52:14,284 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 22:52:14,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:52:14,285 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:52:14,285 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:52:14,286 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:52:14,286 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:52:14,286 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:52:14,287 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:52:14,287 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:52:14,288 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:52:14,288 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:52:14,289 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:52:14,289 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:52:14,290 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:52:14,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:52:14,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:52:14,291 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:52:14,293 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:52:14,293 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:52:14,293 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:52:14,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:52:14,294 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eba94063d18105b44b9503ed48a138d00b9b850cd51aae19571aab60c15e268e [2023-11-24 22:52:14,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:52:14,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:52:14,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:52:14,721 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:52:14,722 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:52:14,724 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2023-11-24 22:52:17,963 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:52:18,235 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:52:18,236 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2023-11-24 22:52:18,262 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/data/dc35820be/91f6f205478c4551b0ea994aa3bec66f/FLAG5fcb69519 [2023-11-24 22:52:18,276 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/data/dc35820be/91f6f205478c4551b0ea994aa3bec66f [2023-11-24 22:52:18,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:52:18,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:52:18,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:52:18,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:52:18,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:52:18,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:52:18" (1/1) ... [2023-11-24 22:52:18,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6483293c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:18, skipping insertion in model container [2023-11-24 22:52:18,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:52:18" (1/1) ... [2023-11-24 22:52:18,360 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:52:18,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:52:18,776 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:52:18,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:52:18,880 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:52:18,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:18 WrapperNode [2023-11-24 22:52:18,881 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:52:18,882 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:52:18,882 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:52:18,882 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:52:18,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:18" (1/1) ... [2023-11-24 22:52:18,926 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:18" (1/1) ... [2023-11-24 22:52:18,946 INFO L138 Inliner]: procedures = 117, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2023-11-24 22:52:18,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:52:18,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:52:18,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:52:18,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:52:18,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:18" (1/1) ... [2023-11-24 22:52:18,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:18" (1/1) ... [2023-11-24 22:52:18,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:18" (1/1) ... [2023-11-24 22:52:18,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:18" (1/1) ... [2023-11-24 22:52:18,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:18" (1/1) ... [2023-11-24 22:52:18,972 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:18" (1/1) ... [2023-11-24 22:52:18,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:18" (1/1) ... [2023-11-24 22:52:18,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:18" (1/1) ... [2023-11-24 22:52:18,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:52:18,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:52:18,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:52:19,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:52:19,005 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:18" (1/1) ... [2023-11-24 22:52:19,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:52:19,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:52:19,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:52:19,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:52:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:52:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-24 22:52:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:52:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:52:19,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:52:19,238 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:52:19,240 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:52:19,436 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:52:19,516 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:52:19,523 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:52:19,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:52:19 BoogieIcfgContainer [2023-11-24 22:52:19,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:52:19,526 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:52:19,527 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:52:19,538 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:52:19,538 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:52:19" (1/1) ... [2023-11-24 22:52:19,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:52:19,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:19,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-24 22:52:19,619 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-24 22:52:19,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:52:19,622 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:19,622 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:52:19,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:52:19,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:52:19,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:52:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:19,797 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:52:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:19,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 22:52:19,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:19,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 22:52:20,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:52:20,052 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:52:20,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:52:20,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:20,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-24 22:52:20,198 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-24 22:52:20,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:52:20,199 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:20,199 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:52:20,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:52:20,202 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:52:20,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 22:52:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:20,342 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:52:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:20,367 WARN L260 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:52:20,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:20,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 22:52:20,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:52:20,569 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:52:20,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 22:52:21,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:21,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2023-11-24 22:52:21,233 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-11-24 22:52:21,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:52:21,235 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:21,235 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:52:21,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:52:21,236 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:52:21,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 22:52:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:21,377 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:52:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:21,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:52:21,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:21,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:52:21,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-24 22:52:21,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:21,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-11-24 22:52:21,766 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-11-24 22:52:21,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:52:21,766 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:21,766 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:52:21,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:52:21,781 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:52:21,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-24 22:52:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:21,922 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:52:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:21,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-24 22:52:21,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:21,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 22:52:22,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:52:22,011 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:52:22,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dd3867-78bc-4c36-9d92-97b53ef26090/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0