./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/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_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/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_d983326b-4339-4f0a-8e19-713459a8ae75/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 4d1375e0884273e701688a9a8eac55476ef970fe83c7d545ad9af0603bce9da2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:53:58,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:53:58,899 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:53:58,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:53:58,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:53:58,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:53:58,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:53:58,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:53:58,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:53:58,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:53:58,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:53:58,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:53:58,941 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:53:58,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:53:58,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:53:58,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:53:58,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:53:58,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:53:58,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:53:58,946 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:53:58,947 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:53:58,948 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:53:58,948 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:53:58,949 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:53:58,950 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:53:58,951 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:53:58,951 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:53:58,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:53:58,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:53:58,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:53:58,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:53:58,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:53:58,955 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:53:58,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:53:58,956 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:53:58,957 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_d983326b-4339-4f0a-8e19-713459a8ae75/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d1375e0884273e701688a9a8eac55476ef970fe83c7d545ad9af0603bce9da2 [2023-11-21 18:53:59,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:53:59,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:53:59,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:53:59,306 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:53:59,307 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:53:59,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c [2023-11-21 18:54:02,548 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:54:02,809 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:54:02,810 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c [2023-11-21 18:54:02,820 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/data/d60121d3f/7d83d78beb904b33b0d85a2815d84599/FLAG43d0d24d6 [2023-11-21 18:54:02,838 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/data/d60121d3f/7d83d78beb904b33b0d85a2815d84599 [2023-11-21 18:54:02,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:54:02,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:54:02,846 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:54:02,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:54:02,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:54:02,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:54:02" (1/1) ... [2023-11-21 18:54:02,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b9ae02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:02, skipping insertion in model container [2023-11-21 18:54:02,855 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:54:02" (1/1) ... [2023-11-21 18:54:02,881 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:54:03,126 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:54:03,138 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:54:03,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:54:03,185 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:54:03,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:03 WrapperNode [2023-11-21 18:54:03,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:54:03,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:54:03,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:54:03,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:54:03,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:03" (1/1) ... [2023-11-21 18:54:03,205 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:03" (1/1) ... [2023-11-21 18:54:03,244 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 109 [2023-11-21 18:54:03,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:54:03,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:54:03,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:54:03,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:54:03,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:03" (1/1) ... [2023-11-21 18:54:03,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:03" (1/1) ... [2023-11-21 18:54:03,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:03" (1/1) ... [2023-11-21 18:54:03,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:03" (1/1) ... [2023-11-21 18:54:03,278 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:03" (1/1) ... [2023-11-21 18:54:03,282 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:03" (1/1) ... [2023-11-21 18:54:03,284 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:03" (1/1) ... [2023-11-21 18:54:03,286 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:03" (1/1) ... [2023-11-21 18:54:03,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:54:03,307 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:54:03,308 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:54:03,308 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:54:03,309 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:03" (1/1) ... [2023-11-21 18:54:03,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:54:03,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:54:03,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:54:03,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:54:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:54:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:54:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:54:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:54:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:54:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:54:03,507 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:54:03,510 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:54:04,156 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:54:04,197 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:54:04,197 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:54:04,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:04 BoogieIcfgContainer [2023-11-21 18:54:04,200 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:54:04,201 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:54:04,202 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:54:04,216 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:54:04,216 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:04" (1/1) ... [2023-11-21 18:54:04,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:54:04,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:04,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 138 states and 145 transitions. [2023-11-21 18:54:04,305 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 145 transitions. [2023-11-21 18:54:04,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:54:04,307 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:04,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:04,558 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 18:54:04,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:04,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 140 states and 147 transitions. [2023-11-21 18:54:04,617 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 147 transitions. [2023-11-21 18:54:04,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:54:04,617 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:04,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:04,683 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 18:54:04,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:04,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 141 states and 148 transitions. [2023-11-21 18:54:04,706 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 148 transitions. [2023-11-21 18:54:04,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:54:04,707 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:04,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:04,772 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 18:54:04,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:04,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 146 states and 156 transitions. [2023-11-21 18:54:04,961 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 156 transitions. [2023-11-21 18:54:04,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:54:04,962 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:04,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:05,008 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 18:54:05,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:05,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 147 states and 157 transitions. [2023-11-21 18:54:05,047 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2023-11-21 18:54:05,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:54:05,048 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:05,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:05,082 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 18:54:05,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:05,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 148 states and 158 transitions. [2023-11-21 18:54:05,098 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 158 transitions. [2023-11-21 18:54:05,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:54:05,098 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:05,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:05,116 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 18:54:05,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:05,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 147 states and 157 transitions. [2023-11-21 18:54:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2023-11-21 18:54:05,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:54:05,124 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:05,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:05,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:54:05,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:05,177 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 18:54:05,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:05,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 149 states and 159 transitions. [2023-11-21 18:54:05,205 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 159 transitions. [2023-11-21 18:54:05,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:54:05,206 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:05,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:54:05,242 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:54:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:54:05,271 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2023-11-21 18:54:05,300 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated [2023-11-21 18:54:05,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:54:05 ImpRootNode [2023-11-21 18:54:05,306 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:54:05,307 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:54:05,307 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:54:05,307 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:54:05,308 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:04" (3/4) ... [2023-11-21 18:54:05,309 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:54:05,310 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:54:05,311 INFO L158 Benchmark]: Toolchain (without parser) took 2467.51ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 91.1MB in the beginning and 76.3MB in the end (delta: 14.8MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2023-11-21 18:54:05,312 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 138.4MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:54:05,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.18ms. Allocated memory is still 138.4MB. Free memory was 90.7MB in the beginning and 79.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:54:05,313 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.50ms. Allocated memory is still 138.4MB. Free memory was 79.9MB in the beginning and 77.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:54:05,314 INFO L158 Benchmark]: Boogie Preprocessor took 43.36ms. Allocated memory is still 138.4MB. Free memory was 77.8MB in the beginning and 76.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:54:05,314 INFO L158 Benchmark]: RCFGBuilder took 892.89ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 76.4MB in the beginning and 122.4MB in the end (delta: -46.0MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2023-11-21 18:54:05,315 INFO L158 Benchmark]: CodeCheck took 1104.78ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 76.3MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-21 18:54:05,316 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 167.8MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:54:05,319 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, 138 locations, 62 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 230 IncrementalHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 34 mSDtfsCounter, 230 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 290 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 92 SizeOfPredicates, 0 NumberOfNonLiveVariables, 40 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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: 34]: 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 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++<100 [L34] EXPR 12*r VAL [a=2, counter=1, r=1, s=13/4, x=2] [L34] EXPR 12*r*r VAL [a=2, counter=1, r=1, s=13/4, x=2] [L34] (int)(4*s) - 12*r*r VAL [a=2, counter=1, r=1, s=13/4, x=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 138.4MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.18ms. Allocated memory is still 138.4MB. Free memory was 90.7MB in the beginning and 79.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.50ms. Allocated memory is still 138.4MB. Free memory was 79.9MB in the beginning and 77.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.36ms. Allocated memory is still 138.4MB. Free memory was 77.8MB in the beginning and 76.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 892.89ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 76.4MB in the beginning and 122.4MB in the end (delta: -46.0MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * CodeCheck took 1104.78ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 76.3MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 167.8MB. Free memory is still 76.3MB. 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 [2023-11-21 18:54:05,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/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_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/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_d983326b-4339-4f0a-8e19-713459a8ae75/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 4d1375e0884273e701688a9a8eac55476ef970fe83c7d545ad9af0603bce9da2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:54:08,087 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:54:08,218 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-11-21 18:54:08,272 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:54:08,273 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:54:08,274 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:54:08,275 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:54:08,276 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:54:08,277 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:54:08,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:54:08,285 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:54:08,285 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:54:08,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:54:08,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:54:08,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:54:08,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:54:08,289 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:54:08,289 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:54:08,290 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:54:08,290 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:54:08,291 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:54:08,291 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:54:08,292 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:54:08,292 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:54:08,293 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:54:08,293 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:54:08,293 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:54:08,294 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:54:08,294 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:54:08,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:54:08,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:54:08,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:54:08,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:54:08,297 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:54:08,298 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:54:08,298 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:54:08,298 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:54:08,299 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:54:08,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:54:08,300 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_d983326b-4339-4f0a-8e19-713459a8ae75/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d1375e0884273e701688a9a8eac55476ef970fe83c7d545ad9af0603bce9da2 [2023-11-21 18:54:08,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:54:08,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:54:08,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:54:08,754 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:54:08,755 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:54:08,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c [2023-11-21 18:54:11,883 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:54:12,182 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:54:12,183 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c [2023-11-21 18:54:12,195 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/data/eb421b00f/5c17078d1b44487bb2b8254b0e920440/FLAGf3190f57b [2023-11-21 18:54:12,213 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/data/eb421b00f/5c17078d1b44487bb2b8254b0e920440 [2023-11-21 18:54:12,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:54:12,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:54:12,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:54:12,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:54:12,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:54:12,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:54:12" (1/1) ... [2023-11-21 18:54:12,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a118566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:12, skipping insertion in model container [2023-11-21 18:54:12,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:54:12" (1/1) ... [2023-11-21 18:54:12,254 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:54:12,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:54:12,483 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:54:12,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:54:12,564 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:54:12,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:12 WrapperNode [2023-11-21 18:54:12,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:54:12,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:54:12,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:54:12,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:54:12,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:12" (1/1) ... [2023-11-21 18:54:12,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:12" (1/1) ... [2023-11-21 18:54:12,646 INFO L138 Inliner]: procedures = 15, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 110 [2023-11-21 18:54:12,647 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:54:12,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:54:12,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:54:12,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:54:12,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:12" (1/1) ... [2023-11-21 18:54:12,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:12" (1/1) ... [2023-11-21 18:54:12,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:12" (1/1) ... [2023-11-21 18:54:12,676 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:12" (1/1) ... [2023-11-21 18:54:12,696 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:12" (1/1) ... [2023-11-21 18:54:12,716 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:12" (1/1) ... [2023-11-21 18:54:12,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:12" (1/1) ... [2023-11-21 18:54:12,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:12" (1/1) ... [2023-11-21 18:54:12,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:54:12,736 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:54:12,737 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:54:12,737 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:54:12,738 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:12" (1/1) ... [2023-11-21 18:54:12,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:54:12,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:54:12,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:54:12,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:54:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:54:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:54:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:54:12,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:54:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:54:12,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:54:12,986 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:54:12,989 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:54:55,143 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:54:55,174 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:54:55,175 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:54:55,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:55 BoogieIcfgContainer [2023-11-21 18:54:55,177 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:54:55,178 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:54:55,178 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:54:55,188 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:54:55,188 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:55" (1/1) ... [2023-11-21 18:54:55,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:54:55,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:55,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 138 states and 145 transitions. [2023-11-21 18:54:55,253 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 145 transitions. [2023-11-21 18:54:55,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:54:55,255 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:55,255 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:54:55,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:54:55,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:54:55,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:54:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:55,370 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:54:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:55,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:54:55,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:55,405 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 18:54:55,407 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:54:55,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:54:55,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:55,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 137 states and 143 transitions. [2023-11-21 18:54:55,427 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 143 transitions. [2023-11-21 18:54:55,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:54:55,428 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:55,428 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:54:55,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:54:55,429 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:54:55,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:54:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:55,545 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:54:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:55,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:54:55,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:55,649 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 18:54:55,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-21 18:54:55,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:55,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 140 states and 147 transitions. [2023-11-21 18:54:55,793 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 147 transitions. [2023-11-21 18:54:55,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:54:55,793 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:55,793 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:54:55,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:54:55,795 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:54:55,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-21 18:54:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:55,906 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:54:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:55,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:55,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:56,005 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 18:54:56,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-21 18:54:56,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:56,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 145 states and 155 transitions. [2023-11-21 18:54:56,651 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 155 transitions. [2023-11-21 18:54:56,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:54:56,652 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:56,652 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:54:56,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:54:56,657 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:54:56,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-21 18:54:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:56,757 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:54:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:56,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:56,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:56,811 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 18:54:56,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-21 18:54:56,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:56,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 146 states and 157 transitions. [2023-11-21 18:54:56,843 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 157 transitions. [2023-11-21 18:54:56,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:54:56,843 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:56,843 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:54:56,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:54:56,848 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:54:56,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-21 18:54:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:56,965 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:54:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:56,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:56,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:57,029 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 18:54:57,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-21 18:54:57,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:57,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 147 states and 158 transitions. [2023-11-21 18:54:57,073 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2023-11-21 18:54:57,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:54:57,074 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:57,074 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:54:57,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:54:57,075 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:54:57,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-21 18:54:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:57,219 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:54:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:57,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:54:57,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:57,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:57,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-11-21 18:54:57,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:57,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 148 states and 159 transitions. [2023-11-21 18:54:57,440 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 159 transitions. [2023-11-21 18:54:57,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:54:57,440 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:57,440 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:54:57,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:54:57,442 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:54:57,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-21 18:54:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:57,646 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:54:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:57,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:57,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:57,750 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 18:54:57,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-21 18:54:57,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:57,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 149 states and 160 transitions. [2023-11-21 18:54:57,876 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 160 transitions. [2023-11-21 18:54:57,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:54:57,877 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:57,877 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:54:57,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:54:57,880 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:54:57,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-21 18:54:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:58,089 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:54:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:58,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:58,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:58,196 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 18:54:58,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-21 18:54:58,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:58,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 150 states and 161 transitions. [2023-11-21 18:54:58,509 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 161 transitions. [2023-11-21 18:54:58,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:54:58,509 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:58,509 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:54:58,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:54:58,516 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:54:58,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-21 18:54:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:58,771 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:54:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:59,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:54:59,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:59,399 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 18:54:59,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-21 18:55:01,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:01,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 159 states and 172 transitions. [2023-11-21 18:55:01,950 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 172 transitions. [2023-11-21 18:55:01,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:55:01,951 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:01,951 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:55:01,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:55:01,956 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:55:01,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-21 18:55:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:02,238 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:55:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:02,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:55:02,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:02,425 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 18:55:02,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-21 18:55:04,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:04,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 160 states and 174 transitions. [2023-11-21 18:55:04,601 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 174 transitions. [2023-11-21 18:55:04,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 18:55:04,604 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:04,605 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:55:04,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:55:04,609 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:55:04,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-21 18:55:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:04,853 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:55:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:04,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:55:04,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:05,020 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 18:55:05,023 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (12)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:55:05,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d983326b-4339-4f0a-8e19-713459a8ae75/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0