./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-properties/list-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_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/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_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/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_bfd9ae96-2d84-4f38-835d-d23487155db2/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 657efb2af25c5cc2c0afb2bbf76276caecae7904494acc21657e1ac1176685b7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:12:35,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:12:35,507 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-24 23:12:35,513 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:12:35,514 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:12:35,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:12:35,562 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:12:35,563 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:12:35,564 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:12:35,564 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:12:35,565 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:12:35,565 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:12:35,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:12:35,566 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:12:35,567 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:12:35,568 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 23:12:35,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:12:35,569 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:12:35,569 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:12:35,570 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:12:35,571 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:12:35,571 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:12:35,572 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:12:35,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:12:35,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:12:35,574 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:12:35,574 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:12:35,574 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:12:35,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:12:35,576 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_bfd9ae96-2d84-4f38-835d-d23487155db2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 657efb2af25c5cc2c0afb2bbf76276caecae7904494acc21657e1ac1176685b7 [2023-11-24 23:12:35,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:12:35,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:12:35,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:12:35,885 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:12:35,885 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:12:35,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/list-properties/list-1.i [2023-11-24 23:12:39,049 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:12:39,484 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:12:39,485 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/sv-benchmarks/c/list-properties/list-1.i [2023-11-24 23:12:39,501 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/data/92a2375f9/d7ef730197f84d5ca9643ac7e7658b1b/FLAG6e199c822 [2023-11-24 23:12:39,515 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/data/92a2375f9/d7ef730197f84d5ca9643ac7e7658b1b [2023-11-24 23:12:39,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:12:39,520 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:12:39,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:12:39,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:12:39,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:12:39,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:12:39" (1/1) ... [2023-11-24 23:12:39,530 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e073ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:39, skipping insertion in model container [2023-11-24 23:12:39,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:12:39" (1/1) ... [2023-11-24 23:12:39,596 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:12:39,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:12:39,972 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:12:40,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:12:40,088 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:12:40,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:40 WrapperNode [2023-11-24 23:12:40,089 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:12:40,091 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:12:40,091 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:12:40,092 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:12:40,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:40" (1/1) ... [2023-11-24 23:12:40,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:40" (1/1) ... [2023-11-24 23:12:40,171 INFO L138 Inliner]: procedures = 124, calls = 25, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 94 [2023-11-24 23:12:40,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:12:40,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:12:40,173 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:12:40,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:12:40,184 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:40" (1/1) ... [2023-11-24 23:12:40,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:40" (1/1) ... [2023-11-24 23:12:40,189 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:40" (1/1) ... [2023-11-24 23:12:40,190 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:40" (1/1) ... [2023-11-24 23:12:40,198 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:40" (1/1) ... [2023-11-24 23:12:40,202 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:40" (1/1) ... [2023-11-24 23:12:40,204 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:40" (1/1) ... [2023-11-24 23:12:40,206 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:40" (1/1) ... [2023-11-24 23:12:40,218 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:12:40,219 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:12:40,220 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:12:40,228 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:12:40,229 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:12:40" (1/1) ... [2023-11-24 23:12:40,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:12:40,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:12:40,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:12:40,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:12:40,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:12:40,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:12:40,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:12:40,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:12:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:12:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:12:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:12:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:12:40,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:12:40,527 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:12:40,529 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:12:40,877 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:12:40,927 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:12:40,928 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-24 23:12:40,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:12:40 BoogieIcfgContainer [2023-11-24 23:12:40,930 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:12:40,931 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:12:40,931 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:12:40,941 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:12:40,941 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:12:40" (1/1) ... [2023-11-24 23:12:40,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:12:41,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:41,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 58 states and 70 transitions. [2023-11-24 23:12:41,036 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2023-11-24 23:12:41,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:12:41,044 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:41,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:41,269 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 23:12:41,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:41,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 58 states and 68 transitions. [2023-11-24 23:12:41,319 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 68 transitions. [2023-11-24 23:12:41,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:12:41,320 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:41,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:41,561 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 23:12:41,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:41,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 61 states and 73 transitions. [2023-11-24 23:12:41,640 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2023-11-24 23:12:41,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:12:41,641 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:41,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:41,907 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 23:12:42,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:42,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 64 states and 78 transitions. [2023-11-24 23:12:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2023-11-24 23:12:42,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:12:42,162 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:42,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:42,228 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 23:12:42,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:42,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 67 states and 83 transitions. [2023-11-24 23:12:42,250 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 83 transitions. [2023-11-24 23:12:42,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:12:42,251 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:42,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:42,414 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 23:12:42,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:42,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 70 states and 88 transitions. [2023-11-24 23:12:42,458 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 88 transitions. [2023-11-24 23:12:42,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:12:42,459 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:42,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:42,498 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 23:12:42,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:42,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 71 states and 89 transitions. [2023-11-24 23:12:42,516 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2023-11-24 23:12:42,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:12:42,517 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:42,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:42,582 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 23:12:42,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:42,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 72 states and 90 transitions. [2023-11-24 23:12:42,605 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 90 transitions. [2023-11-24 23:12:42,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:12:42,606 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:42,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:42,751 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 23:12:42,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:42,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 71 states and 89 transitions. [2023-11-24 23:12:42,776 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2023-11-24 23:12:42,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:12:42,777 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:42,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:42,874 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 23:12:42,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:42,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 73 states and 92 transitions. [2023-11-24 23:12:42,901 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2023-11-24 23:12:42,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:12:42,902 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:42,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:42,951 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 23:12:43,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:43,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 79 states and 104 transitions. [2023-11-24 23:12:43,105 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 104 transitions. [2023-11-24 23:12:43,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:12:43,106 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:43,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:43,197 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 23:12:43,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:43,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 85 states and 117 transitions. [2023-11-24 23:12:43,383 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 117 transitions. [2023-11-24 23:12:43,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:12:43,384 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:43,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:43,422 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 23:12:43,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:43,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 84 states and 116 transitions. [2023-11-24 23:12:43,457 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 116 transitions. [2023-11-24 23:12:43,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:12:43,459 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:43,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:43,565 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 23:12:43,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:43,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 85 states and 122 transitions. [2023-11-24 23:12:43,859 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 122 transitions. [2023-11-24 23:12:43,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:12:43,859 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:43,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:44,017 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 23:12:44,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:44,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 87 states and 126 transitions. [2023-11-24 23:12:44,118 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 126 transitions. [2023-11-24 23:12:44,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:12:44,119 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:44,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:44,180 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 23:12:44,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:44,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 87 states and 125 transitions. [2023-11-24 23:12:44,252 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 125 transitions. [2023-11-24 23:12:44,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:12:44,253 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:44,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:44,272 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 23:12:44,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:44,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 88 states and 126 transitions. [2023-11-24 23:12:44,291 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 126 transitions. [2023-11-24 23:12:44,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:12:44,292 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:44,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:44,356 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 23:12:44,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:44,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 89 states and 127 transitions. [2023-11-24 23:12:44,569 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2023-11-24 23:12:44,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:12:44,569 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:44,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:44,589 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 23:12:44,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:44,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 88 states and 126 transitions. [2023-11-24 23:12:44,611 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 126 transitions. [2023-11-24 23:12:44,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:12:44,611 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:44,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:44,672 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 23:12:44,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:44,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 90 states and 131 transitions. [2023-11-24 23:12:44,816 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 131 transitions. [2023-11-24 23:12:44,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:12:44,817 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:44,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:44,842 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 23:12:44,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:44,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 89 states and 130 transitions. [2023-11-24 23:12:44,874 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 130 transitions. [2023-11-24 23:12:44,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:12:44,875 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:44,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:44,928 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 23:12:44,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:44,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 90 states and 136 transitions. [2023-11-24 23:12:44,963 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 136 transitions. [2023-11-24 23:12:44,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 23:12:44,963 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:44,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:45,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:12:45,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:45,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 92 states and 142 transitions. [2023-11-24 23:12:45,875 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 142 transitions. [2023-11-24 23:12:45,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 23:12:45,875 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:45,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:46,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:12:47,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:47,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 96 states and 150 transitions. [2023-11-24 23:12:47,137 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 150 transitions. [2023-11-24 23:12:47,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 23:12:47,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:47,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:47,324 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:12:48,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:48,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 97 states and 151 transitions. [2023-11-24 23:12:48,135 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 151 transitions. [2023-11-24 23:12:48,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:12:48,135 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:48,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:48,158 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 23:12:48,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:48,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 96 states and 150 transitions. [2023-11-24 23:12:48,179 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 150 transitions. [2023-11-24 23:12:48,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:12:48,180 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:48,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:48,209 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 23:12:48,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:48,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 95 states and 149 transitions. [2023-11-24 23:12:48,234 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 149 transitions. [2023-11-24 23:12:48,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:12:48,235 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:48,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:48,258 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 23:12:48,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:48,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 94 states and 148 transitions. [2023-11-24 23:12:48,283 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 148 transitions. [2023-11-24 23:12:48,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:12:48,284 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:48,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:48,357 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 23:12:48,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:48,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 97 states and 156 transitions. [2023-11-24 23:12:48,428 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 156 transitions. [2023-11-24 23:12:48,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:12:48,429 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:48,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:48,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:12:49,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:49,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 99 states and 161 transitions. [2023-11-24 23:12:49,478 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 161 transitions. [2023-11-24 23:12:49,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:12:49,478 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:49,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:49,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:12:50,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:50,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 100 states and 162 transitions. [2023-11-24 23:12:50,137 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 162 transitions. [2023-11-24 23:12:50,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:12:50,137 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:50,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:50,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:12:51,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:51,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 101 states and 163 transitions. [2023-11-24 23:12:51,361 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 163 transitions. [2023-11-24 23:12:51,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:12:51,362 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:51,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:51,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:12:52,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:52,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 63 states and 98 transitions. [2023-11-24 23:12:52,149 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 98 transitions. [2023-11-24 23:12:52,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:12:52,150 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:52,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:52,295 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 23:12:53,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:53,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 70 states and 110 transitions. [2023-11-24 23:12:53,539 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 110 transitions. [2023-11-24 23:12:53,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:12:53,539 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:53,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:54,123 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 23:12:55,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:55,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 75 states and 119 transitions. [2023-11-24 23:12:55,812 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 119 transitions. [2023-11-24 23:12:55,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:12:55,813 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:55,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:56,213 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 23:12:57,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:57,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 78 states and 125 transitions. [2023-11-24 23:12:57,492 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 125 transitions. [2023-11-24 23:12:57,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:12:57,493 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:57,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:57,542 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 23:12:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:57,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 84 states and 135 transitions. [2023-11-24 23:12:57,599 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 135 transitions. [2023-11-24 23:12:57,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:12:57,599 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:57,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:57,709 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 23:12:58,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:58,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 88 states and 140 transitions. [2023-11-24 23:12:58,303 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 140 transitions. [2023-11-24 23:12:58,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:12:58,304 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:58,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:58,392 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 23:12:58,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:58,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 90 states and 144 transitions. [2023-11-24 23:12:58,424 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 144 transitions. [2023-11-24 23:12:58,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:12:58,424 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:58,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:12:58,433 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:12:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:12:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:12:58,485 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:12:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:12:58,533 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 39 iterations. [2023-11-24 23:12:58,575 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-24 23:12:58,576 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-24 23:12:58,577 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-24 23:12:58,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:12:58 ImpRootNode [2023-11-24 23:12:58,583 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:12:58,584 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:12:58,584 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:12:58,584 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:12:58,585 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:12:40" (3/4) ... [2023-11-24 23:12:58,587 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:12:58,588 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:12:58,594 INFO L158 Benchmark]: Toolchain (without parser) took 19068.88ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 138.6MB in the beginning and 131.5MB in the end (delta: 7.1MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. [2023-11-24 23:12:58,595 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:12:58,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 568.04ms. Allocated memory is still 169.9MB. Free memory was 138.4MB in the beginning and 124.5MB in the end (delta: 13.9MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-11-24 23:12:58,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.85ms. Allocated memory is still 169.9MB. Free memory was 124.5MB in the beginning and 122.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:12:58,597 INFO L158 Benchmark]: Boogie Preprocessor took 45.51ms. Allocated memory is still 169.9MB. Free memory was 122.4MB in the beginning and 120.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:12:58,598 INFO L158 Benchmark]: RCFGBuilder took 711.10ms. Allocated memory is still 169.9MB. Free memory was 120.8MB in the beginning and 122.1MB in the end (delta: -1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 23:12:58,602 INFO L158 Benchmark]: CodeCheck took 17652.41ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 122.1MB in the beginning and 131.5MB in the end (delta: -9.4MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2023-11-24 23:12:58,602 INFO L158 Benchmark]: Witness Printer took 4.42ms. Allocated memory is still 247.5MB. Free memory is still 131.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:12:58,611 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, 58 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 17.6s, OverallIterations: 39, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3565 SdHoareTripleChecker+Valid, 15.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2623 mSDsluCounter, 4937 SdHoareTripleChecker+Invalid, 13.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3549 mSDsCounter, 2413 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7539 IncrementalHoareTripleChecker+Invalid, 9952 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2413 mSolverCounterUnsat, 1388 mSDtfsCounter, 7539 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3430 GetRequests, 3148 SyntacticMatches, 102 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14115 ImplicationChecksByTransitivity, 12.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 399 NumberOfCodeBlocks, 399 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 346 ConstructedInterpolants, 0 QuantifiedInterpolants, 2064 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 38 InterpolantComputations, 32 PerfectInterpolantSequences, 14/26 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 - UnprovableResult [Line: 531]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 531. Possible FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) [L534] List t; [L535] List p = a; VAL [a={18976:0}, p={18976:0}] [L536] COND FALSE !(__VERIFIER_nondet_int()) [L543] COND FALSE !(__VERIFIER_nondet_int()) [L550] p->h = 3 [L551] p = a VAL [a={18976:0}, p={18976:0}] [L552] EXPR p->h VAL [a={18976:0}, p={18976:0}] [L552] COND FALSE !(p->h == 1) [L554] EXPR p->h VAL [a={18976:0}, p={18976:0}] [L554] COND FALSE !(p->h == 2) [L556] EXPR p->h VAL [a={18976:0}, p={18976:0}] [L556] COND FALSE !(p->h != 3) [L558] return 0; VAL [\result=0, a={18976:0}, p={18976:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 568.04ms. Allocated memory is still 169.9MB. Free memory was 138.4MB in the beginning and 124.5MB in the end (delta: 13.9MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.85ms. Allocated memory is still 169.9MB. Free memory was 124.5MB in the beginning and 122.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.51ms. Allocated memory is still 169.9MB. Free memory was 122.4MB in the beginning and 120.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 711.10ms. Allocated memory is still 169.9MB. Free memory was 120.8MB in the beginning and 122.1MB in the end (delta: -1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 17652.41ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 122.1MB in the beginning and 131.5MB in the end (delta: -9.4MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. * Witness Printer took 4.42ms. Allocated memory is still 247.5MB. Free memory is still 131.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:12:58,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/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_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/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_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/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_bfd9ae96-2d84-4f38-835d-d23487155db2/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 657efb2af25c5cc2c0afb2bbf76276caecae7904494acc21657e1ac1176685b7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:13:01,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:13:01,699 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2023-11-24 23:13:01,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:13:01,766 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:13:01,767 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:13:01,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:13:01,769 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:13:01,770 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:13:01,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:13:01,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:13:01,778 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:13:01,779 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:13:01,781 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 23:13:01,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:13:01,783 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:13:01,783 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:13:01,784 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:13:01,784 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:13:01,786 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:13:01,787 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:13:01,787 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:13:01,788 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:13:01,789 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:13:01,789 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:01,790 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 23:13:01,791 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:13:01,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:13:01,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:13:01,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:13:01,795 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:13:01,796 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:01,796 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 23:13:01,797 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:13:01,797 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_bfd9ae96-2d84-4f38-835d-d23487155db2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 657efb2af25c5cc2c0afb2bbf76276caecae7904494acc21657e1ac1176685b7 [2023-11-24 23:13:02,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:13:02,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:13:02,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:13:02,332 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:13:02,333 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:13:02,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/list-properties/list-1.i [2023-11-24 23:13:05,585 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:13:05,934 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:13:05,939 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/sv-benchmarks/c/list-properties/list-1.i [2023-11-24 23:13:05,953 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/data/a6a2281f4/3bcb8197fd904285bf43a35963c3ff67/FLAGf26d68ce0 [2023-11-24 23:13:05,967 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/data/a6a2281f4/3bcb8197fd904285bf43a35963c3ff67 [2023-11-24 23:13:05,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:13:05,971 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:13:05,973 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:13:05,973 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:13:05,978 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:13:05,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:13:05" (1/1) ... [2023-11-24 23:13:05,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5016c77b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:05, skipping insertion in model container [2023-11-24 23:13:05,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:13:05" (1/1) ... [2023-11-24 23:13:06,034 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:13:06,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:13:06,346 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:13:06,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:13:06,436 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:13:06,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:06 WrapperNode [2023-11-24 23:13:06,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:13:06,439 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:13:06,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:13:06,439 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:13:06,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:06" (1/1) ... [2023-11-24 23:13:06,484 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:06" (1/1) ... [2023-11-24 23:13:06,527 INFO L138 Inliner]: procedures = 127, calls = 25, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 93 [2023-11-24 23:13:06,527 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:13:06,528 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:13:06,528 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:13:06,529 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:13:06,539 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:06" (1/1) ... [2023-11-24 23:13:06,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:06" (1/1) ... [2023-11-24 23:13:06,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:06" (1/1) ... [2023-11-24 23:13:06,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:06" (1/1) ... [2023-11-24 23:13:06,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:06" (1/1) ... [2023-11-24 23:13:06,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:06" (1/1) ... [2023-11-24 23:13:06,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:06" (1/1) ... [2023-11-24 23:13:06,619 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:06" (1/1) ... [2023-11-24 23:13:06,623 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:13:06,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:13:06,624 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:13:06,625 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:13:06,625 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:06" (1/1) ... [2023-11-24 23:13:06,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:13:06,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:13:06,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:13:06,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:13:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:13:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:13:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:13:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:13:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:13:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:13:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:13:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:13:06,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:13:06,919 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:13:06,921 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:13:07,451 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:13:07,516 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:13:07,517 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-24 23:13:07,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:13:07 BoogieIcfgContainer [2023-11-24 23:13:07,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:13:07,521 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:13:07,521 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:13:07,532 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:13:07,533 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:13:07" (1/1) ... [2023-11-24 23:13:07,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:13:07,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:07,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 58 states and 70 transitions. [2023-11-24 23:13:07,599 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2023-11-24 23:13:07,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:13:07,604 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:07,604 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:07,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:07,608 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:07,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 23:13:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:07,766 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:07,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:13:07,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:07,839 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 23:13:07,842 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:13:07,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:07,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:07,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 58 states and 68 transitions. [2023-11-24 23:13:07,902 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 68 transitions. [2023-11-24 23:13:07,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:13:07,905 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:07,906 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:07,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:07,909 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:07,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 23:13:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:08,020 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:08,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:13:08,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:08,124 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 23:13:08,194 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 23:13:08,196 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:13:08,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:08,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:08,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 61 states and 73 transitions. [2023-11-24 23:13:08,313 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2023-11-24 23:13:08,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:13:08,314 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:08,315 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:08,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:08,317 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:08,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 23:13:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:08,449 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:08,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 23:13:08,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:08,478 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 23:13:08,554 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 23:13:08,557 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:13:08,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:08,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:08,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 64 states and 78 transitions. [2023-11-24 23:13:08,993 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2023-11-24 23:13:08,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:13:08,994 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:08,994 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:08,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:08,995 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:08,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-24 23:13:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:09,076 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:09,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:13:09,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:09,096 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 23:13:09,145 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 23:13:09,147 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:13:09,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-11-24 23:13:09,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:09,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 67 states and 83 transitions. [2023-11-24 23:13:09,229 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 83 transitions. [2023-11-24 23:13:09,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:13:09,229 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:09,230 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:09,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:09,232 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:09,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-24 23:13:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:09,313 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:09,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 23:13:09,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:09,342 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 23:13:09,393 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 23:13:09,396 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:13:09,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:09,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:09,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 70 states and 88 transitions. [2023-11-24 23:13:09,485 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 88 transitions. [2023-11-24 23:13:09,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:13:09,486 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:09,486 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:09,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:09,488 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:09,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-24 23:13:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:09,577 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:09,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:13:09,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:09,608 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 23:13:09,635 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 23:13:09,642 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:13:09,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:09,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:09,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 71 states and 89 transitions. [2023-11-24 23:13:09,682 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2023-11-24 23:13:09,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:13:09,683 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:09,684 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:09,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:09,685 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:09,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-24 23:13:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:09,776 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:09,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 23:13:09,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:09,813 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 23:13:09,885 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 23:13:09,888 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:13:09,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:09,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:09,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 72 states and 90 transitions. [2023-11-24 23:13:09,939 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 90 transitions. [2023-11-24 23:13:09,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:13:09,940 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:09,940 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:09,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:09,943 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:09,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-24 23:13:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:10,083 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:10,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:13:10,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:10,145 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-11-24 23:13:10,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2023-11-24 23:13:10,158 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 23:13:10,160 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:13:10,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:10,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:10,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 71 states and 89 transitions. [2023-11-24 23:13:10,243 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2023-11-24 23:13:10,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:13:10,244 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:10,244 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:10,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:10,248 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:10,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-24 23:13:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:10,365 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:10,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-24 23:13:10,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:10,401 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 23:13:10,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:13:10,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-24 23:13:10,476 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 23:13:10,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-24 23:13:10,490 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 23:13:10,492 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (10)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:13:10,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:10,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:10,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 73 states and 92 transitions. [2023-11-24 23:13:10,570 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2023-11-24 23:13:10,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:13:10,570 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:10,571 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:10,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:10,573 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:10,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-24 23:13:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:10,686 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:10,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:13:10,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:10,766 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 23:13:10,769 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (11)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:13:10,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:11,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:11,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 79 states and 104 transitions. [2023-11-24 23:13:11,101 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 104 transitions. [2023-11-24 23:13:11,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:13:11,102 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:11,102 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:11,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:11,104 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:11,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-24 23:13:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:11,215 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:11,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:13:11,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:11,254 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 23:13:11,303 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 23:13:11,305 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (12)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:13:11,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:11,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:11,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 85 states and 117 transitions. [2023-11-24 23:13:11,628 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 117 transitions. [2023-11-24 23:13:11,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:13:11,629 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:11,629 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:11,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:11,632 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:11,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-24 23:13:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:11,728 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:11,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:13:11,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:11,759 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 23:13:11,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:11,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:11,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 84 states and 116 transitions. [2023-11-24 23:13:11,816 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 116 transitions. [2023-11-24 23:13:11,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:13:11,817 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:11,817 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:11,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:11,819 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:11,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-11-24 23:13:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:11,931 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:11,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:13:11,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:12,077 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 23:13:12,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:12,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:12,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 83 states and 115 transitions. [2023-11-24 23:13:12,623 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 115 transitions. [2023-11-24 23:13:12,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:13:12,624 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:12,624 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:12,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:12,628 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:12,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-24 23:13:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:12,749 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:12,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-24 23:13:12,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:12,781 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 23:13:12,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:13:12,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-24 23:13:12,871 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 23:13:12,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-24 23:13:12,882 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 23:13:12,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:12,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:12,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 85 states and 119 transitions. [2023-11-24 23:13:12,956 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 119 transitions. [2023-11-24 23:13:12,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:13:12,956 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:12,956 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:12,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:12,960 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:12,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-24 23:13:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:13,077 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:13,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:13:13,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:13,127 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-11-24 23:13:13,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2023-11-24 23:13:13,134 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 23:13:13,137 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (16)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:13:13,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:13,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:13,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 85 states and 118 transitions. [2023-11-24 23:13:13,247 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 118 transitions. [2023-11-24 23:13:13,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:13:13,247 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:13,248 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:13,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:13,249 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:13,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-11-24 23:13:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:13,349 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:13,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:13:13,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:13,374 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 23:13:13,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:13,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:13,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 86 states and 119 transitions. [2023-11-24 23:13:13,439 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 119 transitions. [2023-11-24 23:13:13,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:13:13,440 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:13,440 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:13,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:13,441 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:13,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-11-24 23:13:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:13,542 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:13,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:13:13,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:13,753 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 23:13:13,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:14,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:14,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 87 states and 120 transitions. [2023-11-24 23:13:14,472 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 120 transitions. [2023-11-24 23:13:14,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:13:14,473 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:14,473 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:14,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:14,475 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:14,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-11-24 23:13:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:14,583 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:14,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:13:14,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:14,612 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 23:13:14,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:14,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:14,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 86 states and 119 transitions. [2023-11-24 23:13:14,668 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 119 transitions. [2023-11-24 23:13:14,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:13:14,671 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:14,672 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:14,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:14,673 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:14,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-11-24 23:13:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:14,811 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:14,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:13:14,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:14,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2023-11-24 23:13:15,126 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 23:13:15,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-11-24 23:13:16,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:16,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 88 states and 125 transitions. [2023-11-24 23:13:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 125 transitions. [2023-11-24 23:13:16,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:13:16,237 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:16,240 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:16,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:16,243 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:16,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-11-24 23:13:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:16,351 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:16,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:13:16,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:16,378 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 23:13:16,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:16,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:16,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 87 states and 124 transitions. [2023-11-24 23:13:16,430 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2023-11-24 23:13:16,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:13:16,430 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:16,430 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:16,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:16,432 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:16,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-11-24 23:13:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:16,544 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:16,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:13:16,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:16,586 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 23:13:16,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:16,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:16,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 86 states and 123 transitions. [2023-11-24 23:13:16,641 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 123 transitions. [2023-11-24 23:13:16,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 23:13:16,642 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:16,642 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:16,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:16,644 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:16,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-11-24 23:13:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:16,779 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:16,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:13:16,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:16,811 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 23:13:16,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1 [2023-11-24 23:13:17,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-24 23:13:17,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:13:17,051 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (23)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:13:17,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:18,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:18,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 87 states and 124 transitions. [2023-11-24 23:13:18,424 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2023-11-24 23:13:18,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 23:13:18,425 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:18,425 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:18,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:18,430 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:18,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-11-24 23:13:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:18,575 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:18,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 23:13:18,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:18,617 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 23:13:18,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1 [2023-11-24 23:13:18,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 13 treesize of output 9 [2023-11-24 23:13:18,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-24 23:13:19,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:13:19,022 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (24)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:13:19,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:20,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:20,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 75 states and 107 transitions. [2023-11-24 23:13:20,805 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 107 transitions. [2023-11-24 23:13:20,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:13:20,806 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:20,806 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:20,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:20,808 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:20,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-11-24 23:13:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:20,923 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:20,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:13:20,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:20,971 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 23:13:20,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:21,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:21,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 74 states and 106 transitions. [2023-11-24 23:13:21,001 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 106 transitions. [2023-11-24 23:13:21,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:13:21,002 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:21,003 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:21,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:21,004 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:21,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-11-24 23:13:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:21,118 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:21,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:13:21,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:21,192 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 23:13:21,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:21,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:21,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 73 states and 105 transitions. [2023-11-24 23:13:21,224 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 105 transitions. [2023-11-24 23:13:21,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:13:21,224 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:21,224 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:21,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:21,225 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:21,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-11-24 23:13:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:21,349 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:21,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:13:21,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:21,382 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 23:13:21,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:21,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:21,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 72 states and 104 transitions. [2023-11-24 23:13:21,428 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 104 transitions. [2023-11-24 23:13:21,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:13:21,430 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:21,430 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:21,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:21,432 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:21,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-11-24 23:13:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:21,568 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:13:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:13:21,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:13:21,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:13:21,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2023-11-24 23:13:21,791 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 23:13:21,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfd9ae96-2d84-4f38-835d-d23487155db2/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0