./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound20.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_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/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_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/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_6bb2c050-65e0-448d-b4fd-b6189f7cf258/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 c8425a5d05ac446a6871721d80167c62d0d4f36c759d59becfd4b9bf0feba487 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:52:46,542 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:52:46,614 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:52:46,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:52:46,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:52:46,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:52:46,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:52:46,646 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:52:46,647 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:52:46,647 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:52:46,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:52:46,649 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:52:46,649 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:52:46,650 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:52:46,650 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:52:46,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:52:46,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:52:46,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:52:46,653 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:52:46,653 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:52:46,654 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:52:46,655 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:52:46,655 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:52:46,656 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:52:46,656 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:52:46,657 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:52:46,657 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:52:46,658 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:52:46,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:52:46,659 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:52:46,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:52:46,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:52:46,666 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:52:46,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:52:46,666 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:52:46,667 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_6bb2c050-65e0-448d-b4fd-b6189f7cf258/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8425a5d05ac446a6871721d80167c62d0d4f36c759d59becfd4b9bf0feba487 [2023-11-21 18:52:46,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:52:46,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:52:46,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:52:46,944 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:52:46,945 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:52:46,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound20.c [2023-11-21 18:52:50,090 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:52:50,324 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:52:50,325 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound20.c [2023-11-21 18:52:50,333 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/data/770f63672/430aa61cb6f54a8ba67cfc6eebf3a347/FLAG09ff09909 [2023-11-21 18:52:50,346 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/data/770f63672/430aa61cb6f54a8ba67cfc6eebf3a347 [2023-11-21 18:52:50,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:52:50,350 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:52:50,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:52:50,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:52:50,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:52:50,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:52:50" (1/1) ... [2023-11-21 18:52:50,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@766e54eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:50, skipping insertion in model container [2023-11-21 18:52:50,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:52:50" (1/1) ... [2023-11-21 18:52:50,386 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:52:50,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:52:50,567 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:52:50,596 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:52:50,610 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:52:50,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:50 WrapperNode [2023-11-21 18:52:50,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:52:50,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:52:50,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:52:50,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:52:50,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:50" (1/1) ... [2023-11-21 18:52:50,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:50" (1/1) ... [2023-11-21 18:52:50,656 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 109 [2023-11-21 18:52:50,656 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:52:50,657 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:52:50,657 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:52:50,657 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:52:50,667 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:50" (1/1) ... [2023-11-21 18:52:50,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:50" (1/1) ... [2023-11-21 18:52:50,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:50" (1/1) ... [2023-11-21 18:52:50,670 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:50" (1/1) ... [2023-11-21 18:52:50,677 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:50" (1/1) ... [2023-11-21 18:52:50,680 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:50" (1/1) ... [2023-11-21 18:52:50,682 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:50" (1/1) ... [2023-11-21 18:52:50,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:50" (1/1) ... [2023-11-21 18:52:50,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:52:50,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:52:50,687 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:52:50,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:52:50,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:50" (1/1) ... [2023-11-21 18:52:50,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:52:50,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:52:50,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:52:50,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:52:50,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:52:50,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:52:50,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:52:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:52:50,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:52:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:52:50,824 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:52:50,826 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:52:51,325 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:52:51,369 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:52:51,369 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:52:51,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:52:51 BoogieIcfgContainer [2023-11-21 18:52:51,371 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:52:51,372 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:52:51,373 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:52:51,383 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:52:51,384 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:52:51" (1/1) ... [2023-11-21 18:52:51,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:52:51,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:52:51,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 138 states and 145 transitions. [2023-11-21 18:52:51,450 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 145 transitions. [2023-11-21 18:52:51,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:52:51,451 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:52:51,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:52:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:52:51,719 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 18:52:51,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:52:51,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 140 states and 147 transitions. [2023-11-21 18:52:51,784 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 147 transitions. [2023-11-21 18:52:51,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:52:51,786 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:52:51,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:52:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:52:51,867 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 18:52:51,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:52:51,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 141 states and 148 transitions. [2023-11-21 18:52:51,898 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 148 transitions. [2023-11-21 18:52:51,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:52:51,899 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:52:51,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:52:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:52:52,024 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 18:52:52,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:52:52,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 146 states and 156 transitions. [2023-11-21 18:52:52,190 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 156 transitions. [2023-11-21 18:52:52,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:52:52,191 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:52:52,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:52:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:52:52,274 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 18:52:52,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:52:52,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 147 states and 157 transitions. [2023-11-21 18:52:52,321 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2023-11-21 18:52:52,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:52:52,322 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:52:52,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:52:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:52:52,371 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 18:52:52,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:52:52,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 148 states and 158 transitions. [2023-11-21 18:52:52,390 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 158 transitions. [2023-11-21 18:52:52,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:52:52,390 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:52:52,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:52:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:52:52,405 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 18:52:52,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:52:52,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 147 states and 157 transitions. [2023-11-21 18:52:52,412 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2023-11-21 18:52:52,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:52:52,412 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:52:52,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:52:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:52:52,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:52:52,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:52:52,464 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 18:52:52,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:52:52,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 149 states and 159 transitions. [2023-11-21 18:52:52,484 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 159 transitions. [2023-11-21 18:52:52,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:52:52,484 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:52:52,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:52:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:52:52,504 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:52:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:52:52,521 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2023-11-21 18:52:52,545 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated [2023-11-21 18:52:52,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:52:52 ImpRootNode [2023-11-21 18:52:52,550 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:52:52,551 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:52:52,551 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:52:52,551 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:52:52,552 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:52:51" (3/4) ... [2023-11-21 18:52:52,554 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:52:52,555 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:52:52,556 INFO L158 Benchmark]: Toolchain (without parser) took 2205.85ms. Allocated memory is still 199.2MB. Free memory was 151.8MB in the beginning and 139.9MB in the end (delta: 11.9MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2023-11-21 18:52:52,557 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 136.3MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:52:52,557 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.88ms. Allocated memory is still 199.2MB. Free memory was 151.8MB in the beginning and 140.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:52:52,558 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.39ms. Allocated memory is still 199.2MB. Free memory was 140.7MB in the beginning and 138.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:52:52,559 INFO L158 Benchmark]: Boogie Preprocessor took 28.95ms. Allocated memory is still 199.2MB. Free memory was 138.6MB in the beginning and 137.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:52:52,560 INFO L158 Benchmark]: RCFGBuilder took 684.87ms. Allocated memory is still 199.2MB. Free memory was 137.2MB in the beginning and 115.6MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 18:52:52,560 INFO L158 Benchmark]: CodeCheck took 1177.84ms. Allocated memory is still 199.2MB. Free memory was 115.6MB in the beginning and 139.9MB in the end (delta: -24.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:52:52,561 INFO L158 Benchmark]: Witness Printer took 4.44ms. Allocated memory is still 199.2MB. Free memory is still 139.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:52:52,564 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: 1.1s, 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, 0.5s 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, 0.4s 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++<20 [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 0.15ms. Allocated memory is still 136.3MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.88ms. Allocated memory is still 199.2MB. Free memory was 151.8MB in the beginning and 140.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.39ms. Allocated memory is still 199.2MB. Free memory was 140.7MB in the beginning and 138.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.95ms. Allocated memory is still 199.2MB. Free memory was 138.6MB in the beginning and 137.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 684.87ms. Allocated memory is still 199.2MB. Free memory was 137.2MB in the beginning and 115.6MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 1177.84ms. Allocated memory is still 199.2MB. Free memory was 115.6MB in the beginning and 139.9MB in the end (delta: -24.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.44ms. Allocated memory is still 199.2MB. Free memory is still 139.9MB. 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 18:52:52,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/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_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/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_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/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_6bb2c050-65e0-448d-b4fd-b6189f7cf258/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 c8425a5d05ac446a6871721d80167c62d0d4f36c759d59becfd4b9bf0feba487 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:52:55,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:52:55,254 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-11-21 18:52:55,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:52:55,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:52:55,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:52:55,311 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:52:55,311 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:52:55,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:52:55,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:52:55,318 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:52:55,318 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:52:55,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:52:55,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:52:55,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:52:55,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:52:55,322 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:52:55,323 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:52:55,323 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:52:55,323 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:52:55,324 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:52:55,325 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:52:55,325 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:52:55,326 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:52:55,326 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:52:55,327 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:52:55,327 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:52:55,327 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:52:55,328 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:52:55,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:52:55,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:52:55,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:52:55,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:52:55,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:52:55,331 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:52:55,332 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:52:55,332 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:52:55,332 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:52:55,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:52:55,334 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_6bb2c050-65e0-448d-b4fd-b6189f7cf258/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8425a5d05ac446a6871721d80167c62d0d4f36c759d59becfd4b9bf0feba487 [2023-11-21 18:52:55,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:52:55,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:52:55,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:52:55,792 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:52:55,796 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:52:55,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound20.c [2023-11-21 18:52:58,892 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:52:59,085 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:52:59,086 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound20.c [2023-11-21 18:52:59,093 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/data/042636f58/13daf2661abf4ec0a3143bcf5aea9913/FLAGe6a4f2f6b [2023-11-21 18:52:59,107 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/data/042636f58/13daf2661abf4ec0a3143bcf5aea9913 [2023-11-21 18:52:59,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:52:59,111 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:52:59,112 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:52:59,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:52:59,117 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:52:59,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:52:59" (1/1) ... [2023-11-21 18:52:59,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f29b21f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:59, skipping insertion in model container [2023-11-21 18:52:59,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:52:59" (1/1) ... [2023-11-21 18:52:59,142 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:52:59,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:52:59,393 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:52:59,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:52:59,476 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:52:59,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:59 WrapperNode [2023-11-21 18:52:59,477 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:52:59,478 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:52:59,479 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:52:59,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:52:59,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:59" (1/1) ... [2023-11-21 18:52:59,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:59" (1/1) ... [2023-11-21 18:52:59,579 INFO L138 Inliner]: procedures = 15, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 110 [2023-11-21 18:52:59,580 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:52:59,580 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:52:59,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:52:59,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:52:59,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:59" (1/1) ... [2023-11-21 18:52:59,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:59" (1/1) ... [2023-11-21 18:52:59,604 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:59" (1/1) ... [2023-11-21 18:52:59,604 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:59" (1/1) ... [2023-11-21 18:52:59,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:59" (1/1) ... [2023-11-21 18:52:59,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:59" (1/1) ... [2023-11-21 18:52:59,634 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:59" (1/1) ... [2023-11-21 18:52:59,652 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:59" (1/1) ... [2023-11-21 18:52:59,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:52:59,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:52:59,661 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:52:59,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:52:59,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:52:59" (1/1) ... [2023-11-21 18:52:59,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:52:59,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:52:59,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:52:59,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:52:59,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:52:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:52:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:52:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:52:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:52:59,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:52:59,856 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:52:59,860 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:53:48,237 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:53:48,274 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:53:48,275 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:53:48,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:53:48 BoogieIcfgContainer [2023-11-21 18:53:48,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:53:48,278 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:53:48,278 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:53:48,289 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:53:48,289 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:53:48" (1/1) ... [2023-11-21 18:53:48,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:53:48,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:53:48,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 138 states and 145 transitions. [2023-11-21 18:53:48,371 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 145 transitions. [2023-11-21 18:53:48,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:53:48,373 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:53:48,374 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:53:48,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:53:48,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:53:48,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:53:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:48,489 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:53:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:48,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:53:48,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:53:48,534 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 18:53:48,535 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:53:48,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:53:48,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:53:48,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 137 states and 143 transitions. [2023-11-21 18:53:48,584 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 143 transitions. [2023-11-21 18:53:48,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:53:48,585 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:53:48,585 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:53:48,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:53:48,586 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:53:48,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:53:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:48,691 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:53:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:48,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:53:48,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:53:48,804 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 18:53:48,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-21 18:53:48,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:53:48,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 140 states and 147 transitions. [2023-11-21 18:53:48,946 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 147 transitions. [2023-11-21 18:53:48,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:53:48,946 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:53:48,947 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:53:48,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:53:48,949 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:53:48,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-21 18:53:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:49,090 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:53:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:49,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:53:49,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:53:49,189 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 18:53:49,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-21 18:53:49,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:53:49,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 145 states and 155 transitions. [2023-11-21 18:53:49,847 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 155 transitions. [2023-11-21 18:53:49,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:53:49,848 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:53:49,848 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:53:49,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:53:49,853 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:53:49,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-21 18:53:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:49,989 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:53:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:50,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:53:50,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:53:50,046 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 18:53:50,047 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:53:50,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-21 18:53:50,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:53:50,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 146 states and 157 transitions. [2023-11-21 18:53:50,079 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 157 transitions. [2023-11-21 18:53:50,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:53:50,080 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:53:50,080 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:53:50,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:53:50,085 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:53:50,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-21 18:53:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:50,224 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:53:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:50,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:53:50,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:53:50,289 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 18:53:50,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-21 18:53:50,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:53:50,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 147 states and 158 transitions. [2023-11-21 18:53:50,340 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2023-11-21 18:53:50,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:53:50,340 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:53:50,341 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:53:50,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:53:50,345 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:53:50,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-21 18:53:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:50,497 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:53:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:50,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:53:50,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:53:50,562 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 18:53:50,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-21 18:53:50,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:53:50,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 148 states and 159 transitions. [2023-11-21 18:53:50,614 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 159 transitions. [2023-11-21 18:53:50,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:53:50,614 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:53:50,614 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:53:50,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:53:50,616 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:53:50,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-21 18:53:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:50,793 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:53:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:50,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:53:50,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:53:50,902 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 18:53:50,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-21 18:53:51,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:53:51,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 149 states and 160 transitions. [2023-11-21 18:53:51,048 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 160 transitions. [2023-11-21 18:53:51,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:53:51,048 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:53:51,048 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:53:51,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:53:51,053 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:53:51,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-21 18:53:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:51,239 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:53:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:51,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:53:51,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:53:51,321 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 18:53:51,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-21 18:53:51,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:53:51,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 150 states and 161 transitions. [2023-11-21 18:53:51,512 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 161 transitions. [2023-11-21 18:53:51,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:53:51,512 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:53:51,513 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:53:51,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:53:51,517 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:53:51,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-21 18:53:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:51,722 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:53:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:51,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:53:51,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:53:51,827 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 18:53:51,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-21 18:53:52,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:53:52,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 151 states and 162 transitions. [2023-11-21 18:53:52,076 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 162 transitions. [2023-11-21 18:53:52,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:53:52,076 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:53:52,076 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:53:52,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:53:52,078 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:53:52,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-21 18:53:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:52,393 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:53:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:53:52,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:53:52,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:53:53,004 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 18:53:53,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2c050-65e0-448d-b4fd-b6189f7cf258/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0