./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/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_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/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_c1d57878-bc18-4a3f-910f-37722b46f114/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 f4dc35f578dc1494a61593c536b677f3beb3e4db21638b64de73547c5a37e2be --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:56:58,662 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:56:58,786 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:56:58,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:56:58,803 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:56:58,840 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:56:58,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:56:58,841 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:56:58,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:56:58,843 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:56:58,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:56:58,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:56:58,845 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:56:58,846 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:56:58,847 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:56:58,847 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:56:58,848 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:56:58,848 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:56:58,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:56:58,850 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:56:58,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:56:58,851 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:56:58,852 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:56:58,852 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:56:58,856 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:56:58,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:56:58,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:56:58,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:56:58,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:56:58,859 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:56:58,859 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:56:58,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:56:58,860 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:56:58,861 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_c1d57878-bc18-4a3f-910f-37722b46f114/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4dc35f578dc1494a61593c536b677f3beb3e4db21638b64de73547c5a37e2be [2023-11-19 02:56:59,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:56:59,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:56:59,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:56:59,147 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:56:59,147 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:56:59,149 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c [2023-11-19 02:57:02,468 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:57:02,721 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:57:02,722 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c [2023-11-19 02:57:02,731 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/data/bed20ee16/dc0317c39f3140bb9b6a1b9d89e599d3/FLAGd8269e859 [2023-11-19 02:57:02,749 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/data/bed20ee16/dc0317c39f3140bb9b6a1b9d89e599d3 [2023-11-19 02:57:02,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:57:02,754 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:57:02,755 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:57:02,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:57:02,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:57:02,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:57:02" (1/1) ... [2023-11-19 02:57:02,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76f45b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:02, skipping insertion in model container [2023-11-19 02:57:02,765 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:57:02" (1/1) ... [2023-11-19 02:57:02,791 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:57:02,951 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_c1d57878-bc18-4a3f-910f-37722b46f114/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c[709,722] [2023-11-19 02:57:02,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:57:02,985 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:57:02,995 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_c1d57878-bc18-4a3f-910f-37722b46f114/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c[709,722] [2023-11-19 02:57:03,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:57:03,021 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:57:03,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:03 WrapperNode [2023-11-19 02:57:03,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:57:03,023 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:57:03,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:57:03,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:57:03,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:03" (1/1) ... [2023-11-19 02:57:03,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:03" (1/1) ... [2023-11-19 02:57:03,070 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2023-11-19 02:57:03,070 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:57:03,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:57:03,071 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:57:03,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:57:03,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:03" (1/1) ... [2023-11-19 02:57:03,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:03" (1/1) ... [2023-11-19 02:57:03,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:03" (1/1) ... [2023-11-19 02:57:03,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:03" (1/1) ... [2023-11-19 02:57:03,089 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:03" (1/1) ... [2023-11-19 02:57:03,093 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:03" (1/1) ... [2023-11-19 02:57:03,094 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:03" (1/1) ... [2023-11-19 02:57:03,095 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:03" (1/1) ... [2023-11-19 02:57:03,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:57:03,097 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:57:03,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:57:03,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:57:03,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:03" (1/1) ... [2023-11-19 02:57:03,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:57:03,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:57:03,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:57:03,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:57:03,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:57:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:57:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:57:03,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:57:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 02:57:03,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 02:57:03,244 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:57:03,247 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:57:03,384 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:57:03,403 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:57:03,404 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:57:03,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:57:03 BoogieIcfgContainer [2023-11-19 02:57:03,409 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:57:03,410 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:57:03,410 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:57:03,421 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:57:03,421 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:57:03" (1/1) ... [2023-11-19 02:57:03,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:57:03,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:03,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2023-11-19 02:57:03,489 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2023-11-19 02:57:03,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 02:57:03,491 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:03,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:57:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:03,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:57:03,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:57:03,709 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 02:57:03,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:03,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-11-19 02:57:03,761 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-11-19 02:57:03,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:57:03,762 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:03,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:57:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:03,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 02:57:03,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:57:03,927 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 02:57:03,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:03,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-11-19 02:57:03,967 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-11-19 02:57:03,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:57:03,967 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:03,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:57:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:57:03,998 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:57:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:57:04,016 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-11-19 02:57:04,037 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated [2023-11-19 02:57:04,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:57:04 ImpRootNode [2023-11-19 02:57:04,042 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:57:04,042 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:57:04,042 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:57:04,043 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:57:04,043 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:57:03" (3/4) ... [2023-11-19 02:57:04,045 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:57:04,046 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:57:04,047 INFO L158 Benchmark]: Toolchain (without parser) took 1293.63ms. Allocated memory is still 144.7MB. Free memory was 108.7MB in the beginning and 103.1MB in the end (delta: 5.6MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2023-11-19 02:57:04,048 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:57:04,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.13ms. Allocated memory is still 144.7MB. Free memory was 108.3MB in the beginning and 97.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:57:04,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.10ms. Allocated memory is still 144.7MB. Free memory was 97.4MB in the beginning and 95.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:57:04,050 INFO L158 Benchmark]: Boogie Preprocessor took 25.64ms. Allocated memory is still 144.7MB. Free memory was 95.7MB in the beginning and 94.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:57:04,051 INFO L158 Benchmark]: RCFGBuilder took 311.40ms. Allocated memory is still 144.7MB. Free memory was 94.5MB in the beginning and 83.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:57:04,051 INFO L158 Benchmark]: CodeCheck took 631.97ms. Allocated memory is still 144.7MB. Free memory was 83.6MB in the beginning and 103.6MB in the end (delta: -20.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:57:04,052 INFO L158 Benchmark]: Witness Printer took 4.30ms. Allocated memory is still 144.7MB. Free memory was 103.6MB in the beginning and 103.1MB in the end (delta: 469.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:57:04,055 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, 18 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, 44 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 32 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, 30 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 106 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 4 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 34. Possible FailurePath: [L24] int counter = 0; [L26] int r; [L27] double a, x, s; [L28] a = __VERIFIER_nondet_double() [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [a=2, counter=0, r=1, s=13/4, x=2] [L33] EXPR counter++ VAL [a=2, counter=1, r=1, s=13/4, x=2] [L33] COND TRUE counter++<5 [L34] CALL __VERIFIER_assert((int)(4*s) - 12*r*r == 1) 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 0.27ms. Allocated memory is still 100.7MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.13ms. Allocated memory is still 144.7MB. Free memory was 108.3MB in the beginning and 97.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.10ms. Allocated memory is still 144.7MB. Free memory was 97.4MB in the beginning and 95.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.64ms. Allocated memory is still 144.7MB. Free memory was 95.7MB in the beginning and 94.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.40ms. Allocated memory is still 144.7MB. Free memory was 94.5MB in the beginning and 83.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 631.97ms. Allocated memory is still 144.7MB. Free memory was 83.6MB in the beginning and 103.6MB in the end (delta: -20.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.30ms. Allocated memory is still 144.7MB. Free memory was 103.6MB in the beginning and 103.1MB in the end (delta: 469.9kB). 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 02:57:04,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/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_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/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_c1d57878-bc18-4a3f-910f-37722b46f114/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 f4dc35f578dc1494a61593c536b677f3beb3e4db21638b64de73547c5a37e2be --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:57:06,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:57:06,832 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 02:57:06,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:57:06,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:57:06,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:57:06,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:57:06,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:57:06,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:57:06,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:57:06,873 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:57:06,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:57:06,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:57:06,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:57:06,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:57:06,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:57:06,876 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 02:57:06,877 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 02:57:06,877 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 02:57:06,878 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:57:06,878 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:57:06,879 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:57:06,879 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:57:06,880 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:57:06,880 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:57:06,881 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:57:06,881 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 02:57:06,882 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:57:06,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:57:06,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:57:06,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:57:06,884 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:57:06,884 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 02:57:06,884 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:57:06,885 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:57:06,885 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 02:57:06,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 02:57:06,885 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_c1d57878-bc18-4a3f-910f-37722b46f114/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4dc35f578dc1494a61593c536b677f3beb3e4db21638b64de73547c5a37e2be [2023-11-19 02:57:07,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:57:07,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:57:07,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:57:07,350 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:57:07,351 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:57:07,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c [2023-11-19 02:57:10,704 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:57:10,965 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:57:10,967 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c [2023-11-19 02:57:10,981 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/data/736544ec6/7aaae2149aa14b26a87de88db33af438/FLAG5ac84c344 [2023-11-19 02:57:11,002 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/data/736544ec6/7aaae2149aa14b26a87de88db33af438 [2023-11-19 02:57:11,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:57:11,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:57:11,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:57:11,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:57:11,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:57:11,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:57:11" (1/1) ... [2023-11-19 02:57:11,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72249d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:11, skipping insertion in model container [2023-11-19 02:57:11,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:57:11" (1/1) ... [2023-11-19 02:57:11,054 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:57:11,237 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_c1d57878-bc18-4a3f-910f-37722b46f114/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c[709,722] [2023-11-19 02:57:11,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:57:11,305 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:57:11,321 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_c1d57878-bc18-4a3f-910f-37722b46f114/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c[709,722] [2023-11-19 02:57:11,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:57:11,360 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:57:11,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:11 WrapperNode [2023-11-19 02:57:11,365 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:57:11,367 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:57:11,367 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:57:11,367 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:57:11,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:11" (1/1) ... [2023-11-19 02:57:11,386 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:11" (1/1) ... [2023-11-19 02:57:11,410 INFO L138 Inliner]: procedures = 15, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2023-11-19 02:57:11,411 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:57:11,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:57:11,412 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:57:11,412 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:57:11,422 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:11" (1/1) ... [2023-11-19 02:57:11,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:11" (1/1) ... [2023-11-19 02:57:11,426 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:11" (1/1) ... [2023-11-19 02:57:11,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:11" (1/1) ... [2023-11-19 02:57:11,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:11" (1/1) ... [2023-11-19 02:57:11,457 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:11" (1/1) ... [2023-11-19 02:57:11,459 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:11" (1/1) ... [2023-11-19 02:57:11,460 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:11" (1/1) ... [2023-11-19 02:57:11,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:57:11,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:57:11,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:57:11,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:57:11,466 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:11" (1/1) ... [2023-11-19 02:57:11,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:57:11,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:57:11,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:57:11,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:57:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:57:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 02:57:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:57:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:57:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 02:57:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 02:57:11,631 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:57:11,634 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:57:18,785 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:57:18,813 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:57:18,814 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:57:18,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:57:18 BoogieIcfgContainer [2023-11-19 02:57:18,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:57:18,832 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:57:18,832 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:57:18,845 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:57:18,853 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:57:18" (1/1) ... [2023-11-19 02:57:18,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:57:18,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:18,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2023-11-19 02:57:18,961 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2023-11-19 02:57:18,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 02:57:18,963 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:18,964 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:57:18,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:57:18,970 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:57:18,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 02:57:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:19,138 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:57:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:19,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:57:19,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:57:19,256 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 02:57:19,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 02:57:19,264 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:57:19,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:19,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-11-19 02:57:19,321 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-11-19 02:57:19,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:57:19,322 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:19,322 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:57:19,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:57:19,324 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:57:19,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 02:57:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:19,546 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:57:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:19,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 02:57:19,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:57:19,710 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 02:57:19,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 02:57:19,717 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:57:19,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:19,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-11-19 02:57:19,829 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-11-19 02:57:19,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:57:19,830 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:19,830 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:57:19,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:57:19,845 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:57:19,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 02:57:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:20,036 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:57:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:20,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 02:57:20,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:57:20,695 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 02:57:20,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d57878-bc18-4a3f-910f-37722b46f114/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 02:57:22,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 02:57:25,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 02:57:30,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 02:57:41,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 02:57:51,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 02:57:54,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 02:58:05,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []