./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe305249fd372aa93f06f96f19c9f980fcfbf950606534816ffa9c7d79f22fc1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:44:02,836 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:44:02,908 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:44:02,913 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:44:02,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:44:02,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:44:02,950 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:44:02,951 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:44:02,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:44:02,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:44:02,955 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:44:02,955 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:44:02,956 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:44:02,963 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:44:02,964 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:44:02,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:44:02,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:44:02,967 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:44:02,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:44:02,968 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:44:02,969 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:44:02,969 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:44:02,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:44:02,970 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:44:02,971 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:44:02,971 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:44:02,972 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:44:02,972 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:44:02,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:44:02,973 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:44:02,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:44:02,974 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:44:02,975 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:44:02,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:44:02,976 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:44:02,976 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_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe305249fd372aa93f06f96f19c9f980fcfbf950606534816ffa9c7d79f22fc1 [2023-11-21 18:44:03,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:44:03,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:44:03,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:44:03,292 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:44:03,293 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:44:03,295 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c [2023-11-21 18:44:06,617 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:44:06,868 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:44:06,869 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c [2023-11-21 18:44:06,878 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/data/c3aebff2e/4f6dacee687f43edbba974fa8d67a1e3/FLAG597806d43 [2023-11-21 18:44:06,896 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/data/c3aebff2e/4f6dacee687f43edbba974fa8d67a1e3 [2023-11-21 18:44:06,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:44:06,903 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:44:06,909 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:44:06,909 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:44:06,914 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:44:06,916 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:44:06" (1/1) ... [2023-11-21 18:44:06,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a0b7d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:06, skipping insertion in model container [2023-11-21 18:44:06,917 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:44:06" (1/1) ... [2023-11-21 18:44:06,944 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:44:07,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:44:07,139 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:44:07,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:44:07,200 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:44:07,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:07 WrapperNode [2023-11-21 18:44:07,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:44:07,202 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:44:07,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:44:07,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:44:07,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:07" (1/1) ... [2023-11-21 18:44:07,223 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:07" (1/1) ... [2023-11-21 18:44:07,279 INFO L138 Inliner]: procedures = 18, calls = 77, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2023-11-21 18:44:07,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:44:07,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:44:07,286 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:44:07,286 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:44:07,297 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:07" (1/1) ... [2023-11-21 18:44:07,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:07" (1/1) ... [2023-11-21 18:44:07,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:07" (1/1) ... [2023-11-21 18:44:07,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:07" (1/1) ... [2023-11-21 18:44:07,325 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:07" (1/1) ... [2023-11-21 18:44:07,327 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:07" (1/1) ... [2023-11-21 18:44:07,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:07" (1/1) ... [2023-11-21 18:44:07,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:07" (1/1) ... [2023-11-21 18:44:07,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:44:07,336 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:44:07,337 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:44:07,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:44:07,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:07" (1/1) ... [2023-11-21 18:44:07,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:44:07,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:44:07,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:44:07,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:44:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_0_to_36_0 [2023-11-21 18:44:07,421 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_0_to_36_0 [2023-11-21 18:44:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:44:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:44:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:44:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:44:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-21 18:44:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-21 18:44:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:44:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:44:07,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:44:07,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:44:07,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:44:07,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:44:07,519 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:44:07,521 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:44:08,252 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:44:08,313 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:44:08,321 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:44:08,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:44:08 BoogieIcfgContainer [2023-11-21 18:44:08,323 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:44:08,326 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:44:08,327 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:44:08,337 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:44:08,337 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:44:08" (1/1) ... [2023-11-21 18:44:08,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:44:08,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:44:08,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 144 states and 151 transitions. [2023-11-21 18:44:08,402 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 151 transitions. [2023-11-21 18:44:08,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:44:08,406 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:44:08,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:44:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:44:08,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:44:09,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:44:09,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 147 states and 154 transitions. [2023-11-21 18:44:09,069 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 154 transitions. [2023-11-21 18:44:09,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:44:09,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:44:09,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:44:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:44:09,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:44:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:44:09,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 148 states and 155 transitions. [2023-11-21 18:44:09,298 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 155 transitions. [2023-11-21 18:44:09,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:44:09,299 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:44:09,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:44:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:44:09,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-21 18:44:09,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:44:09,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 18:44:09,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:44:09,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:44:09,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 149 states and 157 transitions. [2023-11-21 18:44:09,773 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 157 transitions. [2023-11-21 18:44:09,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:44:09,773 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:44:09,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:44:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:44:09,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-21 18:44:09,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:44:09,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 18:44:09,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:44:10,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:44:10,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 151 states and 159 transitions. [2023-11-21 18:44:10,062 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 159 transitions. [2023-11-21 18:44:10,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:44:10,063 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:44:10,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:44:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:44:10,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:44:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:44:10,168 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2023-11-21 18:44:10,196 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-21 18:44:10,197 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-21 18:44:10,197 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-21 18:44:10,198 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-21 18:44:10,198 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-21 18:44:10,198 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-21 18:44:10,198 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-21 18:44:10,199 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-21 18:44:10,199 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-21 18:44:10,199 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-21 18:44:10,199 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-21 18:44:10,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:44:10 ImpRootNode [2023-11-21 18:44:10,204 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:44:10,205 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:44:10,205 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:44:10,205 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:44:10,206 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:44:08" (3/4) ... [2023-11-21 18:44:10,208 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:44:10,209 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:44:10,210 INFO L158 Benchmark]: Toolchain (without parser) took 3307.17ms. Allocated memory is still 172.0MB. Free memory was 127.3MB in the beginning and 86.7MB in the end (delta: 40.6MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2023-11-21 18:44:10,211 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory was 67.1MB in the beginning and 67.0MB in the end (delta: 98.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:44:10,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.38ms. Allocated memory is still 172.0MB. Free memory was 126.9MB in the beginning and 115.4MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 18:44:10,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.03ms. Allocated memory is still 172.0MB. Free memory was 115.4MB in the beginning and 113.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:44:10,213 INFO L158 Benchmark]: Boogie Preprocessor took 50.79ms. Allocated memory is still 172.0MB. Free memory was 113.3MB in the beginning and 111.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:44:10,213 INFO L158 Benchmark]: RCFGBuilder took 988.99ms. Allocated memory is still 172.0MB. Free memory was 111.7MB in the beginning and 128.9MB in the end (delta: -17.2MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2023-11-21 18:44:10,214 INFO L158 Benchmark]: CodeCheck took 1878.29ms. Allocated memory is still 172.0MB. Free memory was 128.9MB in the beginning and 87.8MB in the end (delta: 41.1MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2023-11-21 18:44:10,214 INFO L158 Benchmark]: Witness Printer took 4.24ms. Allocated memory is still 172.0MB. Free memory was 87.8MB in the beginning and 86.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:44:10,218 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 3 procedures, 144 locations, 60 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 16 mSDtfsCounter, 120 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 196 GetRequests, 174 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 158 SizeOfPredicates, 12 NumberOfNonLiveVariables, 275 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 58]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of to_int at line 58. Possible FailurePath: [L81] int r; [L82] double a; [L83] double x; [L84] double s; [L85] a = __VERIFIER_nondet_double() [L86] EXPR \read(a) [L86] x = a [L87] s = 3.25 [L88] r = 1 VAL [a={4:0}, r={6:0}, s={5:0}, x={7:0}] [L89] CALL func_to_recursive_line_0_to_36_0(&s, &a, &x, &r) VAL [a={4:0}, r={6:0}, s={5:0}, x={7:0}] [L58] EXPR \read(*s) [L58] EXPR \read(*r) VAL [a={4:0}, a={4:0}, r={6:0}, r={6:0}, s={5:0}, s={5:0}, x={7:0}, x={7:0}] [L58] EXPR 12 * (*r) [L58] EXPR \read(*r) VAL [a={4:0}, a={4:0}, r={6:0}, r={6:0}, s={5:0}, s={5:0}, x={7:0}, x={7:0}] [L58] EXPR (12 * (*r)) * (*r) VAL [a={4:0}, a={4:0}, r={6:0}, r={6:0}, s={5:0}, s={5:0}, x={7:0}, x={7:0}] [L58] ((int) (4 * (*s))) - ((12 * (*r)) * (*r)) VAL [a={4:0}, a={4:0}, r={6:0}, r={6:0}, s={5:0}, s={5:0}, x={7:0}, x={7:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory was 67.1MB in the beginning and 67.0MB in the end (delta: 98.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.38ms. Allocated memory is still 172.0MB. Free memory was 126.9MB in the beginning and 115.4MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.03ms. Allocated memory is still 172.0MB. Free memory was 115.4MB in the beginning and 113.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.79ms. Allocated memory is still 172.0MB. Free memory was 113.3MB in the beginning and 111.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 988.99ms. Allocated memory is still 172.0MB. Free memory was 111.7MB in the beginning and 128.9MB in the end (delta: -17.2MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * CodeCheck took 1878.29ms. Allocated memory is still 172.0MB. Free memory was 128.9MB in the beginning and 87.8MB in the end (delta: 41.1MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. * Witness Printer took 4.24ms. Allocated memory is still 172.0MB. Free memory was 87.8MB in the beginning and 86.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 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 [2023-11-21 18:44:10,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/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_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe305249fd372aa93f06f96f19c9f980fcfbf950606534816ffa9c7d79f22fc1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:44:12,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:44:12,921 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-11-21 18:44:12,957 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:44:12,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:44:12,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:44:12,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:44:12,961 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:44:12,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:44:12,962 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:44:12,962 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:44:12,963 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:44:12,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:44:12,964 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:44:12,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:44:12,965 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:44:12,968 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:44:12,972 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:44:12,973 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:44:12,973 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:44:12,975 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:44:12,976 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:44:12,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:44:12,978 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:44:12,979 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:44:12,979 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:44:12,980 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:44:12,980 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:44:12,980 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:44:12,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:44:12,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:44:12,983 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:44:12,983 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:44:12,984 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:44:12,984 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:44:12,985 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:44:12,985 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:44:12,985 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:44:12,985 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:44:12,986 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_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe305249fd372aa93f06f96f19c9f980fcfbf950606534816ffa9c7d79f22fc1 [2023-11-21 18:44:13,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:44:13,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:44:13,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:44:13,485 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:44:13,486 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:44:13,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c [2023-11-21 18:44:16,679 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:44:16,970 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:44:16,971 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c [2023-11-21 18:44:16,984 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/data/0aaf8ff44/a92d1e52100b4360a4f7d4a39f413c5f/FLAG76fbe90f9 [2023-11-21 18:44:17,001 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/data/0aaf8ff44/a92d1e52100b4360a4f7d4a39f413c5f [2023-11-21 18:44:17,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:44:17,006 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:44:17,007 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:44:17,007 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:44:17,012 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:44:17,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:44:17" (1/1) ... [2023-11-21 18:44:17,014 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5af2bb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:17, skipping insertion in model container [2023-11-21 18:44:17,014 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:44:17" (1/1) ... [2023-11-21 18:44:17,038 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:44:17,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:44:17,260 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:44:17,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:44:17,313 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:44:17,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:17 WrapperNode [2023-11-21 18:44:17,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:44:17,315 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:44:17,315 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:44:17,315 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:44:17,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:17" (1/1) ... [2023-11-21 18:44:17,337 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:17" (1/1) ... [2023-11-21 18:44:17,363 INFO L138 Inliner]: procedures = 21, calls = 77, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 112 [2023-11-21 18:44:17,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:44:17,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:44:17,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:44:17,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:44:17,374 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:17" (1/1) ... [2023-11-21 18:44:17,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:17" (1/1) ... [2023-11-21 18:44:17,380 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:17" (1/1) ... [2023-11-21 18:44:17,381 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:17" (1/1) ... [2023-11-21 18:44:17,395 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:17" (1/1) ... [2023-11-21 18:44:17,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:17" (1/1) ... [2023-11-21 18:44:17,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:17" (1/1) ... [2023-11-21 18:44:17,404 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:17" (1/1) ... [2023-11-21 18:44:17,409 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:44:17,410 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:44:17,410 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:44:17,410 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:44:17,411 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:44:17" (1/1) ... [2023-11-21 18:44:17,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:44:17,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:44:17,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:44:17,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b35758f-894a-4d90-887b-05691774cc64/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:44:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_0_to_36_0 [2023-11-21 18:44:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_0_to_36_0 [2023-11-21 18:44:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:44:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-21 18:44:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-21 18:44:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:44:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:44:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 18:44:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:44:17,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:44:17,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:44:17,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:44:17,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:44:17,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 18:44:17,615 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:44:17,618 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation