./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/ps5-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/ps5-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d0411df2a3b388d2db53c57aaa1f7219c19c9d74992ef1ed00eab4b9b56cbed --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:58:44,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:58:44,106 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 03:58:44,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:58:44,112 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:58:44,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:58:44,140 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:58:44,141 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:58:44,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:58:44,143 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:58:44,143 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:58:44,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:58:44,145 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 03:58:44,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:58:44,146 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 03:58:44,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:58:44,147 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:58:44,148 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:58:44,148 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:58:44,149 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 03:58:44,149 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:58:44,150 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:58:44,151 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:58:44,151 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:58:44,152 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:58:44,152 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:58:44,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:58:44,153 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:58:44,154 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:58:44,154 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:58:44,155 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:58:44,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:58:44,156 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:58:44,156 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_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d0411df2a3b388d2db53c57aaa1f7219c19c9d74992ef1ed00eab4b9b56cbed [2023-12-03 03:58:44,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:58:44,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:58:44,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:58:44,437 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:58:44,437 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:58:44,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench/ps5-ll.c [2023-12-03 03:58:47,303 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:58:47,475 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:58:47,475 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/sv-benchmarks/c/nla-digbench/ps5-ll.c [2023-12-03 03:58:47,481 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/data/b822c4084/0149fa40fc2b4daeaa3fdc6f00382265/FLAGdf14445f1 [2023-12-03 03:58:47,493 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/data/b822c4084/0149fa40fc2b4daeaa3fdc6f00382265 [2023-12-03 03:58:47,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:58:47,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:58:47,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:58:47,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:58:47,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:58:47,501 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:58:47" (1/1) ... [2023-12-03 03:58:47,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29b89a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:58:47, skipping insertion in model container [2023-12-03 03:58:47,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:58:47" (1/1) ... [2023-12-03 03:58:47,522 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:58:47,653 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/sv-benchmarks/c/nla-digbench/ps5-ll.c[458,471] [2023-12-03 03:58:47,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:58:47,679 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:58:47,691 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/sv-benchmarks/c/nla-digbench/ps5-ll.c[458,471] [2023-12-03 03:58:47,698 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:58:47,710 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:58:47,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:58:47 WrapperNode [2023-12-03 03:58:47,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:58:47,712 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:58:47,712 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:58:47,712 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:58:47,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:58:47" (1/1) ... [2023-12-03 03:58:47,726 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:58:47" (1/1) ... [2023-12-03 03:58:47,745 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2023-12-03 03:58:47,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:58:47,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:58:47,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:58:47,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:58:47,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:58:47" (1/1) ... [2023-12-03 03:58:47,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:58:47" (1/1) ... [2023-12-03 03:58:47,754 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:58:47" (1/1) ... [2023-12-03 03:58:47,754 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:58:47" (1/1) ... [2023-12-03 03:58:47,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:58:47" (1/1) ... [2023-12-03 03:58:47,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:58:47" (1/1) ... [2023-12-03 03:58:47,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:58:47" (1/1) ... [2023-12-03 03:58:47,761 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:58:47" (1/1) ... [2023-12-03 03:58:47,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:58:47,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:58:47,763 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:58:47,763 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:58:47,764 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:58:47" (1/1) ... [2023-12-03 03:58:47,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:58:47,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:58:47,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:58:47,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:58:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:58:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:58:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:58:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:58:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 03:58:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 03:58:47,900 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:58:47,902 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:58:48,021 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:58:48,059 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:58:48,059 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 03:58:48,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:58:48 BoogieIcfgContainer [2023-12-03 03:58:48,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:58:48,062 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:58:48,062 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:58:48,073 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:58:48,073 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:58:48" (1/1) ... [2023-12-03 03:58:48,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:58:48,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:58:48,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-12-03 03:58:48,139 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-12-03 03:58:48,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 03:58:48,141 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:58:48,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:58:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:58:48,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 03:58:48,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:58:48,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:58:48,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:58:48,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2023-12-03 03:58:48,451 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2023-12-03 03:58:48,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 03:58:48,454 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:58:48,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:58:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:58:48,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 03:58:48,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:58:48,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:58:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:58:48,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-12-03 03:58:48,908 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-12-03 03:58:48,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 03:58:48,909 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:58:48,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:58:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:58:48,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 03:58:48,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:58:49,028 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:58:50,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:58:50,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2023-12-03 03:58:50,325 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2023-12-03 03:58:50,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 03:58:50,326 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:58:50,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:58:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:58:50,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 03:58:50,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:58:50,407 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 03:58:50,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:58:50,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 27 states and 42 transitions. [2023-12-03 03:58:50,481 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2023-12-03 03:58:50,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 03:58:50,483 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:58:50,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:58:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:58:50,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 03:58:50,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:58:50,636 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 03:59:00,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 03:59:00,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:59:00,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2023-12-03 03:59:00,981 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2023-12-03 03:59:00,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 03:59:00,983 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:59:00,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:59:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:59:01,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 03:59:01,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:59:01,173 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 03:59:01,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:59:01,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 38 states and 65 transitions. [2023-12-03 03:59:01,806 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 65 transitions. [2023-12-03 03:59:01,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 03:59:01,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:59:01,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:59:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:59:02,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 03:59:02,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:59:02,136 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 03:59:06,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 03:59:06,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:59:06,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 41 states and 70 transitions. [2023-12-03 03:59:06,531 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 70 transitions. [2023-12-03 03:59:06,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 03:59:06,532 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:59:06,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:59:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:59:06,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 03:59:06,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:59:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 03:59:07,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:59:07,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 49 states and 86 transitions. [2023-12-03 03:59:07,552 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 86 transitions. [2023-12-03 03:59:07,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-03 03:59:07,554 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:59:07,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:59:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:59:09,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-03 03:59:09,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:59:09,848 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 14 proven. 29 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 03:59:10,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:59:10,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 52 states and 91 transitions. [2023-12-03 03:59:10,381 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 91 transitions. [2023-12-03 03:59:10,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-03 03:59:10,382 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:59:10,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:59:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:59:10,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 03:59:10,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:59:10,643 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 21 proven. 19 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 03:59:11,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:59:11,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 60 states and 107 transitions. [2023-12-03 03:59:11,598 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 107 transitions. [2023-12-03 03:59:11,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 03:59:11,600 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:59:11,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:59:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 03:59:21,660 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-03 03:59:21,663 INFO L158 Benchmark]: Toolchain (without parser) took 34166.92ms. Allocated memory is still 140.5MB. Free memory was 92.2MB in the beginning and 103.4MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:59:21,664 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 140.5MB. Free memory was 96.3MB in the beginning and 96.1MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:59:21,664 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.24ms. Allocated memory is still 140.5MB. Free memory was 91.9MB in the beginning and 81.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 03:59:21,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.32ms. Allocated memory is still 140.5MB. Free memory was 81.4MB in the beginning and 79.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:59:21,665 INFO L158 Benchmark]: Boogie Preprocessor took 16.34ms. Allocated memory is still 140.5MB. Free memory was 79.8MB in the beginning and 78.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:59:21,665 INFO L158 Benchmark]: RCFGBuilder took 298.29ms. Allocated memory is still 140.5MB. Free memory was 78.7MB in the beginning and 66.7MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 03:59:21,666 INFO L158 Benchmark]: CodeCheck took 33600.51ms. Allocated memory is still 140.5MB. Free memory was 66.7MB in the beginning and 103.4MB in the end (delta: -36.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:59:21,668 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 140.5MB. Free memory was 96.3MB in the beginning and 96.1MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.24ms. Allocated memory is still 140.5MB. Free memory was 91.9MB in the beginning and 81.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.32ms. Allocated memory is still 140.5MB. Free memory was 81.4MB in the beginning and 79.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.34ms. Allocated memory is still 140.5MB. Free memory was 79.8MB in the beginning and 78.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 298.29ms. Allocated memory is still 140.5MB. Free memory was 78.7MB in the beginning and 66.7MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 33600.51ms. Allocated memory is still 140.5MB. Free memory was 66.7MB in the beginning and 103.4MB in the end (delta: -36.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 03:59:21,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/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_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/ps5-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d0411df2a3b388d2db53c57aaa1f7219c19c9d74992ef1ed00eab4b9b56cbed --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:59:23,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:59:23,645 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-03 03:59:23,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:59:23,673 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:59:23,674 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:59:23,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:59:23,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:59:23,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:59:23,676 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:59:23,676 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 03:59:23,677 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 03:59:23,678 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:59:23,678 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:59:23,679 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:59:23,679 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:59:23,680 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 03:59:23,680 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 03:59:23,681 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 03:59:23,681 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 03:59:23,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:59:23,682 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:59:23,683 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:59:23,683 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:59:23,684 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:59:23,684 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:59:23,685 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 03:59:23,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:59:23,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:59:23,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:59:23,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:59:23,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:59:23,688 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 03:59:23,688 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:59:23,688 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:59:23,688 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 03:59:23,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 03:59:23,689 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_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d0411df2a3b388d2db53c57aaa1f7219c19c9d74992ef1ed00eab4b9b56cbed [2023-12-03 03:59:23,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:59:24,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:59:24,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:59:24,005 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:59:24,005 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:59:24,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench/ps5-ll.c [2023-12-03 03:59:26,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:59:27,010 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:59:27,011 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/sv-benchmarks/c/nla-digbench/ps5-ll.c [2023-12-03 03:59:27,017 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/data/6ed77a65e/e6171a62c4ee4d2c85f2ae07b529c77f/FLAGefb945118 [2023-12-03 03:59:27,030 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/data/6ed77a65e/e6171a62c4ee4d2c85f2ae07b529c77f [2023-12-03 03:59:27,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:59:27,033 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:59:27,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:59:27,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:59:27,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:59:27,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:59:27" (1/1) ... [2023-12-03 03:59:27,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2532cf44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:59:27, skipping insertion in model container [2023-12-03 03:59:27,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:59:27" (1/1) ... [2023-12-03 03:59:27,058 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:59:27,186 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/sv-benchmarks/c/nla-digbench/ps5-ll.c[458,471] [2023-12-03 03:59:27,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:59:27,220 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:59:27,233 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/sv-benchmarks/c/nla-digbench/ps5-ll.c[458,471] [2023-12-03 03:59:27,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:59:27,258 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:59:27,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:59:27 WrapperNode [2023-12-03 03:59:27,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:59:27,259 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:59:27,260 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:59:27,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:59:27,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:59:27" (1/1) ... [2023-12-03 03:59:27,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:59:27" (1/1) ... [2023-12-03 03:59:27,294 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2023-12-03 03:59:27,295 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:59:27,296 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:59:27,296 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:59:27,296 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:59:27,304 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:59:27" (1/1) ... [2023-12-03 03:59:27,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:59:27" (1/1) ... [2023-12-03 03:59:27,308 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:59:27" (1/1) ... [2023-12-03 03:59:27,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:59:27" (1/1) ... [2023-12-03 03:59:27,315 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:59:27" (1/1) ... [2023-12-03 03:59:27,318 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:59:27" (1/1) ... [2023-12-03 03:59:27,320 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:59:27" (1/1) ... [2023-12-03 03:59:27,321 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:59:27" (1/1) ... [2023-12-03 03:59:27,324 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:59:27,325 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:59:27,326 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:59:27,326 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:59:27,327 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:59:27" (1/1) ... [2023-12-03 03:59:27,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:59:27,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:59:27,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:59:27,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:59:27,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:59:27,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 03:59:27,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:59:27,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:59:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 03:59:27,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 03:59:27,463 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:59:27,465 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:59:27,736 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:59:27,780 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:59:27,780 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 03:59:27,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:59:27 BoogieIcfgContainer [2023-12-03 03:59:27,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:59:27,800 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:59:27,800 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:59:27,810 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:59:27,811 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:59:27" (1/1) ... [2023-12-03 03:59:27,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:59:27,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:59:27,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-12-03 03:59:27,874 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-12-03 03:59:27,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 03:59:27,876 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:59:27,876 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:59:27,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:59:27,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:59:27,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 03:59:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:59:28,260 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:59:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:59:28,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 03:59:28,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:59:28,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:59:28,651 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 03:59:28,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 03:59:30,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:59:30,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2023-12-03 03:59:30,086 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2023-12-03 03:59:30,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 03:59:30,090 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:59:30,090 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:59:30,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:59:30,091 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:59:30,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 03:59:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:59:30,514 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:59:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:59:30,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 03:59:30,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:59:41,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:59:41,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 03:59:46,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:00:04,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:00:04,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-12-03 04:00:04,804 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-12-03 04:00:04,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 04:00:04,805 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:00:04,806 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:00:04,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:00:04,807 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:00:04,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 04:00:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:00:05,620 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:00:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:00:06,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 04:00:06,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:00:07,091 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:00:07,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 04:00:46,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:00:48,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:00:48,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2023-12-03 04:00:48,485 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2023-12-03 04:00:48,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 04:00:48,486 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:00:48,487 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:00:48,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:00:48,488 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:00:48,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 04:00:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:00:48,925 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:00:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:00:49,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 04:00:49,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:00:50,699 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 04:00:50,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-03 04:01:34,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:01:34,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 27 states and 43 transitions. [2023-12-03 04:01:34,508 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2023-12-03 04:01:34,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 04:01:34,509 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:01:34,509 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:01:34,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:01:34,510 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:01:34,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 04:01:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:01:35,735 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:01:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:01:36,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 04:01:36,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:01:37,385 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-03 04:01:37,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-03 04:02:28,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:02:28,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2023-12-03 04:02:28,230 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2023-12-03 04:02:28,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 04:02:28,231 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:02:28,231 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:02:28,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:02:28,232 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:02:28,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-03 04:02:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:02:29,002 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:02:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:02:29,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 04:02:29,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:02:31,941 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 04:02:31,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-03 04:03:51,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:03:51,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 38 states and 66 transitions. [2023-12-03 04:03:51,564 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 66 transitions. [2023-12-03 04:03:51,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 04:03:51,565 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:03:51,566 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:03:51,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:03:51,567 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:03:51,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-03 04:03:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:03:53,166 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:03:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:03:54,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 04:03:54,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:03:55,852 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 04:03:55,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-03 04:04:39,201 WARN L293 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:05:02,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:05:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 41 states and 71 transitions. [2023-12-03 04:05:02,558 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 71 transitions. [2023-12-03 04:05:02,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 04:05:02,559 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:05:02,560 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:05:02,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:05:02,561 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:05:02,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-03 04:05:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:05:03,781 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:05:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:05:04,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 04:05:04,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:05:07,109 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 04:05:07,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-03 04:06:28,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:06:28,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 46 states and 83 transitions. [2023-12-03 04:06:28,756 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 83 transitions. [2023-12-03 04:06:28,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-03 04:06:28,758 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:06:28,758 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:06:28,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:06:28,760 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:06:28,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-03 04:06:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:06:30,781 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:06:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:06:32,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-03 04:06:32,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:06:33,937 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 35 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 04:06:33,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-03 04:06:56,159 WARN L293 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:07:26,445 WARN L293 SmtUtils]: Spent 5.57s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:07:57,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:07:57,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 49 states and 88 transitions. [2023-12-03 04:07:57,545 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 88 transitions. [2023-12-03 04:07:57,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-03 04:07:57,547 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:07:57,547 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:07:57,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:07:57,549 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:07:57,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-03 04:07:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:07:59,290 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:08:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:08:00,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 04:08:00,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:08:03,698 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 9 proven. 31 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 04:08:03,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-03 04:08:54,019 WARN L293 SmtUtils]: Spent 5.38s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:09:40,529 WARN L293 SmtUtils]: Spent 6.61s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:09:58,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:09:58,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 54 states and 100 transitions. [2023-12-03 04:09:58,559 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 100 transitions. [2023-12-03 04:09:58,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 04:09:58,561 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:09:58,561 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:09:58,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:09:58,563 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:09:58,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-03 04:10:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:10:01,295 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:10:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:10:03,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 04:10:03,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:10:05,401 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 12 proven. 50 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 04:10:05,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-03 04:10:32,356 WARN L293 SmtUtils]: Spent 6.21s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:11:09,920 WARN L293 SmtUtils]: Spent 7.11s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:11:12,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:11:50,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:11:50,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 57 states and 105 transitions. [2023-12-03 04:11:50,207 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 105 transitions. [2023-12-03 04:11:50,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-03 04:11:50,210 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:11:50,210 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:11:50,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:11:50,213 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:11:50,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-03 04:11:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:11:52,673 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:11:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:11:54,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 04:11:54,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:12:01,436 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 11 proven. 46 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-03 04:12:01,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d7396b-32a8-4830-8436-dd729a4b2e07/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-03 04:13:10,228 WARN L293 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)