./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL --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 6733f5cb9fc343de68240fd800b3186de8da0c1fcb51c576de9d571eaa34d1a7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:23:40,020 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:23:40,096 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:23:40,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:23:40,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:23:40,134 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:23:40,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:23:40,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:23:40,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:23:40,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:23:40,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:23:40,140 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:23:40,140 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:23:40,141 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:23:40,142 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:23:40,142 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:23:40,143 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:23:40,144 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:23:40,144 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:23:40,145 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:23:40,146 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:23:40,146 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:23:40,147 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:23:40,148 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:23:40,148 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:23:40,149 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:23:40,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:23:40,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:23:40,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:23:40,151 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:23:40,152 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:23:40,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:23:40,153 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:23:40,153 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_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6733f5cb9fc343de68240fd800b3186de8da0c1fcb51c576de9d571eaa34d1a7 [2023-11-19 03:23:40,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:23:40,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:23:40,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:23:40,491 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:23:40,492 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:23:40,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound10.c [2023-11-19 03:23:43,640 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:23:43,860 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:23:43,861 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound10.c [2023-11-19 03:23:43,869 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/data/b190ecf52/d871dbc698614b24b02625d014c23ffe/FLAG0dfc994dd [2023-11-19 03:23:43,883 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/data/b190ecf52/d871dbc698614b24b02625d014c23ffe [2023-11-19 03:23:43,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:23:43,887 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:23:43,888 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:23:43,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:23:43,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:23:43,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:23:43" (1/1) ... [2023-11-19 03:23:43,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd7c10f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:43, skipping insertion in model container [2023-11-19 03:23:43,896 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:23:43" (1/1) ... [2023-11-19 03:23:43,918 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:23:44,101 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_39797a9f-64b2-4141-90e6-c4449300df2c/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound10.c[712,725] [2023-11-19 03:23:44,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:23:44,128 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:23:44,140 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_39797a9f-64b2-4141-90e6-c4449300df2c/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound10.c[712,725] [2023-11-19 03:23:44,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:23:44,160 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:23:44,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:44 WrapperNode [2023-11-19 03:23:44,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:23:44,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:23:44,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:23:44,163 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:23:44,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:44" (1/1) ... [2023-11-19 03:23:44,179 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:44" (1/1) ... [2023-11-19 03:23:44,198 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-11-19 03:23:44,198 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:23:44,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:23:44,199 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:23:44,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:23:44,208 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:44" (1/1) ... [2023-11-19 03:23:44,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:44" (1/1) ... [2023-11-19 03:23:44,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:44" (1/1) ... [2023-11-19 03:23:44,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:44" (1/1) ... [2023-11-19 03:23:44,214 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:44" (1/1) ... [2023-11-19 03:23:44,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:44" (1/1) ... [2023-11-19 03:23:44,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:44" (1/1) ... [2023-11-19 03:23:44,219 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:44" (1/1) ... [2023-11-19 03:23:44,221 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:23:44,222 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:23:44,222 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:23:44,222 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:23:44,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:44" (1/1) ... [2023-11-19 03:23:44,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:23:44,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:23:44,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:23:44,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:23:44,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:23:44,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:23:44,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:23:44,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:23:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:23:44,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:23:44,368 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:23:44,370 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:23:44,484 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:23:44,502 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:23:44,503 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:23:44,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:23:44 BoogieIcfgContainer [2023-11-19 03:23:44,507 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:23:44,508 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:23:44,508 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:23:44,519 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:23:44,519 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:23:44" (1/1) ... [2023-11-19 03:23:44,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:23:44,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:44,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-11-19 03:23:44,586 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-11-19 03:23:44,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:23:44,591 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:44,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:44,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:23:44,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:44,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-19 03:23:44,764 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-19 03:23:44,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:23:44,765 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:44,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:23:44,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:44,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2023-11-19 03:23:44,972 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-11-19 03:23:44,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:23:44,973 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:44,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:23:45,000 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:23:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:23:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:23:45,119 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:23:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:23:45,158 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-11-19 03:23:45,181 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated [2023-11-19 03:23:45,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:23:45 ImpRootNode [2023-11-19 03:23:45,186 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:23:45,187 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:23:45,187 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:23:45,187 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:23:45,188 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:23:44" (3/4) ... [2023-11-19 03:23:45,190 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:23:45,192 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:23:45,193 INFO L158 Benchmark]: Toolchain (without parser) took 1305.82ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 96.6MB in the beginning and 158.4MB in the end (delta: -61.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:23:45,194 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:23:45,194 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.33ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 85.7MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 03:23:45,195 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.87ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 84.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:23:45,196 INFO L158 Benchmark]: Boogie Preprocessor took 22.01ms. Allocated memory is still 142.6MB. Free memory was 84.4MB in the beginning and 83.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:23:45,197 INFO L158 Benchmark]: RCFGBuilder took 285.37ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 73.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:23:45,197 INFO L158 Benchmark]: CodeCheck took 678.25ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 73.1MB in the beginning and 158.4MB in the end (delta: -85.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:23:45,198 INFO L158 Benchmark]: Witness Printer took 5.09ms. Allocated memory is still 190.8MB. Free memory is still 158.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:23:45,202 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 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 22 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of to_int at line 33, overapproximation of someBinaryArithmeticDOUBLEoperation at line 29. Possible FailurePath: [L24] int counter = 0; [L26] int r; [L27] double a, x; [L28] a = __VERIFIER_nondet_double() [L29] x = a / 2.0 [L30] r = 0 VAL [counter=0, r=0] [L32] EXPR counter++ VAL [counter=1, r=0] [L32] COND TRUE counter++<10 [L33] CALL __VERIFIER_assert((int)(r*r - a - r + 2*x) == 0) VAL [\old(cond)=0, counter=1] [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, counter=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.33ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 85.7MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.87ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 84.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.01ms. Allocated memory is still 142.6MB. Free memory was 84.4MB in the beginning and 83.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 285.37ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 73.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 678.25ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 73.1MB in the beginning and 158.4MB in the end (delta: -85.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.09ms. Allocated memory is still 190.8MB. Free memory is still 158.4MB. 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~post5 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 [2023-11-19 03:23:45,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL --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 6733f5cb9fc343de68240fd800b3186de8da0c1fcb51c576de9d571eaa34d1a7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:23:48,063 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:23:48,202 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 03:23:48,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:23:48,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:23:48,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:23:48,267 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:23:48,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:23:48,269 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:23:48,275 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:23:48,275 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:23:48,276 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:23:48,276 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:23:48,278 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:23:48,279 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:23:48,279 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:23:48,280 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:23:48,280 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:23:48,281 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:23:48,282 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:23:48,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:23:48,283 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:23:48,283 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:23:48,284 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:23:48,284 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:23:48,285 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:23:48,285 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:23:48,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:23:48,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:23:48,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:23:48,288 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:23:48,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:23:48,289 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:23:48,289 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:23:48,290 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:23:48,290 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:23:48,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:23:48,290 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_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6733f5cb9fc343de68240fd800b3186de8da0c1fcb51c576de9d571eaa34d1a7 [2023-11-19 03:23:48,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:23:48,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:23:48,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:23:48,756 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:23:48,756 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:23:48,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound10.c [2023-11-19 03:23:52,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:23:52,244 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:23:52,244 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound10.c [2023-11-19 03:23:52,254 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/data/15f0ca736/afbfeed5090d450b8b3fffd1a4be2e40/FLAGa368a1b8b [2023-11-19 03:23:52,269 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/data/15f0ca736/afbfeed5090d450b8b3fffd1a4be2e40 [2023-11-19 03:23:52,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:23:52,275 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:23:52,276 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:23:52,277 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:23:52,282 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:23:52,283 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:23:52" (1/1) ... [2023-11-19 03:23:52,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc1d594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:52, skipping insertion in model container [2023-11-19 03:23:52,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:23:52" (1/1) ... [2023-11-19 03:23:52,310 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:23:52,512 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_39797a9f-64b2-4141-90e6-c4449300df2c/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound10.c[712,725] [2023-11-19 03:23:52,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:23:52,558 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:23:52,575 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_39797a9f-64b2-4141-90e6-c4449300df2c/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound10.c[712,725] [2023-11-19 03:23:52,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:23:52,618 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:23:52,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:52 WrapperNode [2023-11-19 03:23:52,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:23:52,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:23:52,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:23:52,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:23:52,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:52" (1/1) ... [2023-11-19 03:23:52,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:52" (1/1) ... [2023-11-19 03:23:52,680 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-11-19 03:23:52,680 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:23:52,682 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:23:52,682 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:23:52,682 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:23:52,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:52" (1/1) ... [2023-11-19 03:23:52,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:52" (1/1) ... [2023-11-19 03:23:52,703 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:52" (1/1) ... [2023-11-19 03:23:52,703 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:52" (1/1) ... [2023-11-19 03:23:52,723 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:52" (1/1) ... [2023-11-19 03:23:52,726 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:52" (1/1) ... [2023-11-19 03:23:52,728 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:52" (1/1) ... [2023-11-19 03:23:52,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:52" (1/1) ... [2023-11-19 03:23:52,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:23:52,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:23:52,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:23:52,735 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:23:52,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:23:52" (1/1) ... [2023-11-19 03:23:52,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:23:52,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:23:52,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:23:52,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:23:52,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:23:52,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:23:52,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:23:52,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:23:52,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:23:52,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:23:52,929 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:23:52,933 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:23:53,995 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:23:54,021 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:23:54,021 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:23:54,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:23:54 BoogieIcfgContainer [2023-11-19 03:23:54,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:23:54,036 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:23:54,036 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:23:54,047 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:23:54,047 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:23:54" (1/1) ... [2023-11-19 03:23:54,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:23:54,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:54,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-11-19 03:23:54,112 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-11-19 03:23:54,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:23:54,117 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:54,117 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:23:54,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:23:54,160 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:23:54,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:23:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:54,329 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:23:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:54,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:23:54,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:23:54,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:23:54,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 03:23:55,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:55,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-19 03:23:55,639 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-19 03:23:55,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:23:55,639 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:55,640 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:23:55,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:23:55,642 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:23:55,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 03:23:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:55,967 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:23:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:56,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:23:56,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:23:56,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:23:56,304 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:23:56,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-19 03:23:58,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 03:23:58,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:58,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2023-11-19 03:23:58,350 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-11-19 03:23:58,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:23:58,351 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:58,351 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:23:58,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:23:58,352 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:23:58,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39797a9f-64b2-4141-90e6-c4449300df2c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 03:23:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:23:59,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:23:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat