./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/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_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/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_a3b9e405-5f8a-4144-940d-2fff293be747/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 1b264b79c7d49597e329d8bc966f852f62544d53af86fa71e439360bb21aacf5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:30:20,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:30:20,507 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:30:20,512 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:30:20,513 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:30:20,538 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:30:20,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:30:20,540 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:30:20,540 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:30:20,541 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:30:20,542 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:30:20,542 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:30:20,543 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:30:20,543 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:30:20,544 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:30:20,545 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:30:20,545 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:30:20,546 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:30:20,546 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:30:20,547 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:30:20,548 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:30:20,548 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:30:20,549 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:30:20,549 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:30:20,550 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:30:20,551 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:30:20,551 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:30:20,552 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:30:20,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:30:20,553 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:30:20,554 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:30:20,554 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:30:20,555 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:30:20,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:30:20,556 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:30:20,556 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_a3b9e405-5f8a-4144-940d-2fff293be747/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b264b79c7d49597e329d8bc966f852f62544d53af86fa71e439360bb21aacf5 [2023-11-21 18:30:20,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:30:20,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:30:20,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:30:20,903 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:30:20,904 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:30:20,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound1.c [2023-11-21 18:30:24,156 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:30:24,436 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:30:24,436 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound1.c [2023-11-21 18:30:24,446 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/data/af23359cb/4cf819d9b75c4dc9a40573d28f834d0e/FLAG696dc4a43 [2023-11-21 18:30:24,460 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/data/af23359cb/4cf819d9b75c4dc9a40573d28f834d0e [2023-11-21 18:30:24,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:30:24,464 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:30:24,466 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:30:24,466 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:30:24,474 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:30:24,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:30:24" (1/1) ... [2023-11-21 18:30:24,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51b13538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:24, skipping insertion in model container [2023-11-21 18:30:24,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:30:24" (1/1) ... [2023-11-21 18:30:24,513 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:30:24,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:30:24,715 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:30:24,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:30:24,755 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:30:24,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:24 WrapperNode [2023-11-21 18:30:24,756 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:30:24,757 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:30:24,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:30:24,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:30:24,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:24" (1/1) ... [2023-11-21 18:30:24,775 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:24" (1/1) ... [2023-11-21 18:30:24,806 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 109 [2023-11-21 18:30:24,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:30:24,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:30:24,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:30:24,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:30:24,819 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:24" (1/1) ... [2023-11-21 18:30:24,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:24" (1/1) ... [2023-11-21 18:30:24,822 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:24" (1/1) ... [2023-11-21 18:30:24,822 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:24" (1/1) ... [2023-11-21 18:30:24,830 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:24" (1/1) ... [2023-11-21 18:30:24,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:24" (1/1) ... [2023-11-21 18:30:24,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:24" (1/1) ... [2023-11-21 18:30:24,837 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:24" (1/1) ... [2023-11-21 18:30:24,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:30:24,841 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:30:24,841 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:30:24,842 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:30:24,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:24" (1/1) ... [2023-11-21 18:30:24,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:30:24,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:30:24,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:30:24,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:30:24,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:30:24,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:30:24,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:30:24,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:30:24,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:30:24,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:30:24,996 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:30:24,998 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:30:25,458 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:30:25,495 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:30:25,496 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:30:25,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:30:25 BoogieIcfgContainer [2023-11-21 18:30:25,498 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:30:25,500 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:30:25,500 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:30:25,511 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:30:25,512 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:30:25" (1/1) ... [2023-11-21 18:30:25,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:30:25,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:30:25,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 138 states and 145 transitions. [2023-11-21 18:30:25,596 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 145 transitions. [2023-11-21 18:30:25,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:30:25,601 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:30:25,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:30:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:30:25,835 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 18:30:25,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:30:25,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 140 states and 147 transitions. [2023-11-21 18:30:25,882 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 147 transitions. [2023-11-21 18:30:25,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:30:25,883 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:30:25,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:30:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:30:25,933 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 18:30:25,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:30:25,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 141 states and 148 transitions. [2023-11-21 18:30:25,961 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 148 transitions. [2023-11-21 18:30:25,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:30:25,961 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:30:25,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:30:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:30:26,035 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 18:30:26,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:30:26,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 146 states and 156 transitions. [2023-11-21 18:30:26,199 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 156 transitions. [2023-11-21 18:30:26,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:30:26,200 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:30:26,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:30:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:30:26,249 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 18:30:26,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:30:26,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 147 states and 157 transitions. [2023-11-21 18:30:26,295 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2023-11-21 18:30:26,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:30:26,296 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:30:26,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:30:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:30:26,361 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 18:30:26,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:30:26,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 148 states and 158 transitions. [2023-11-21 18:30:26,384 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 158 transitions. [2023-11-21 18:30:26,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:30:26,384 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:30:26,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:30:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:30:26,417 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 18:30:26,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:30:26,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 147 states and 157 transitions. [2023-11-21 18:30:26,432 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2023-11-21 18:30:26,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:30:26,433 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:30:26,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:30:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:30:26,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:30:26,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:30:26,492 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 18:30:26,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:30:26,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 149 states and 159 transitions. [2023-11-21 18:30:26,516 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 159 transitions. [2023-11-21 18:30:26,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:30:26,516 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:30:26,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:30:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:30:26,540 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:30:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:30:26,561 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2023-11-21 18:30:26,588 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated [2023-11-21 18:30:26,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:30:26 ImpRootNode [2023-11-21 18:30:26,594 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:30:26,595 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:30:26,596 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:30:26,596 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:30:26,596 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:30:25" (3/4) ... [2023-11-21 18:30:26,599 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:30:26,600 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:30:26,602 INFO L158 Benchmark]: Toolchain (without parser) took 2137.04ms. Allocated memory was 136.3MB in the beginning and 182.5MB in the end (delta: 46.1MB). Free memory was 105.0MB in the beginning and 125.8MB in the end (delta: -20.8MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2023-11-21 18:30:26,603 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 109.1MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:30:26,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.87ms. Allocated memory is still 136.3MB. Free memory was 105.0MB in the beginning and 94.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:30:26,606 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.76ms. Allocated memory is still 136.3MB. Free memory was 94.0MB in the beginning and 92.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:30:26,607 INFO L158 Benchmark]: Boogie Preprocessor took 32.62ms. Allocated memory is still 136.3MB. Free memory was 92.0MB in the beginning and 90.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:30:26,607 INFO L158 Benchmark]: RCFGBuilder took 657.47ms. Allocated memory is still 136.3MB. Free memory was 90.3MB in the beginning and 68.9MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 18:30:26,608 INFO L158 Benchmark]: CodeCheck took 1095.09ms. Allocated memory was 136.3MB in the beginning and 182.5MB in the end (delta: 46.1MB). Free memory was 68.9MB in the beginning and 126.9MB in the end (delta: -58.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:30:26,609 INFO L158 Benchmark]: Witness Printer took 5.29ms. Allocated memory is still 182.5MB. Free memory was 126.9MB in the beginning and 125.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:30:26,621 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, 0.3s 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++<1 [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 0.29ms. Allocated memory is still 109.1MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.87ms. Allocated memory is still 136.3MB. Free memory was 105.0MB in the beginning and 94.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.76ms. Allocated memory is still 136.3MB. Free memory was 94.0MB in the beginning and 92.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.62ms. Allocated memory is still 136.3MB. Free memory was 92.0MB in the beginning and 90.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 657.47ms. Allocated memory is still 136.3MB. Free memory was 90.3MB in the beginning and 68.9MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 1095.09ms. Allocated memory was 136.3MB in the beginning and 182.5MB in the end (delta: 46.1MB). Free memory was 68.9MB in the beginning and 126.9MB in the end (delta: -58.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.29ms. Allocated memory is still 182.5MB. Free memory was 126.9MB in the beginning and 125.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~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 18:30:26,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/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_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/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_a3b9e405-5f8a-4144-940d-2fff293be747/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 1b264b79c7d49597e329d8bc966f852f62544d53af86fa71e439360bb21aacf5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:30:29,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:30:29,514 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-11-21 18:30:29,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:30:29,562 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:30:29,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:30:29,564 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:30:29,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:30:29,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:30:29,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:30:29,572 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:30:29,573 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:30:29,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:30:29,575 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:30:29,576 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:30:29,576 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:30:29,577 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:30:29,577 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:30:29,578 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:30:29,579 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:30:29,580 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:30:29,580 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:30:29,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:30:29,581 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:30:29,582 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:30:29,582 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:30:29,583 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:30:29,583 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:30:29,584 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:30:29,584 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:30:29,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:30:29,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:30:29,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:30:29,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:30:29,587 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:30:29,588 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:30:29,588 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:30:29,588 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:30:29,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:30:29,590 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_a3b9e405-5f8a-4144-940d-2fff293be747/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b264b79c7d49597e329d8bc966f852f62544d53af86fa71e439360bb21aacf5 [2023-11-21 18:30:30,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:30:30,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:30:30,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:30:30,050 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:30:30,050 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:30:30,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound1.c [2023-11-21 18:30:33,270 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:30:33,603 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:30:33,604 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound1.c [2023-11-21 18:30:33,616 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/data/070c73e51/bc1638d7cfce45668b2e6542d6a23d51/FLAGb00730130 [2023-11-21 18:30:33,632 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/data/070c73e51/bc1638d7cfce45668b2e6542d6a23d51 [2023-11-21 18:30:33,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:30:33,637 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:30:33,639 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:30:33,639 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:30:33,644 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:30:33,645 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:30:33" (1/1) ... [2023-11-21 18:30:33,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b8e8537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:33, skipping insertion in model container [2023-11-21 18:30:33,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:30:33" (1/1) ... [2023-11-21 18:30:33,669 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:30:33,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:30:33,953 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:30:34,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:30:34,028 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:30:34,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:34 WrapperNode [2023-11-21 18:30:34,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:30:34,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:30:34,031 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:30:34,031 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:30:34,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:34" (1/1) ... [2023-11-21 18:30:34,065 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:34" (1/1) ... [2023-11-21 18:30:34,101 INFO L138 Inliner]: procedures = 15, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 110 [2023-11-21 18:30:34,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:30:34,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:30:34,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:30:34,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:30:34,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:34" (1/1) ... [2023-11-21 18:30:34,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:34" (1/1) ... [2023-11-21 18:30:34,125 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:34" (1/1) ... [2023-11-21 18:30:34,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:34" (1/1) ... [2023-11-21 18:30:34,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:34" (1/1) ... [2023-11-21 18:30:34,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:34" (1/1) ... [2023-11-21 18:30:34,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:34" (1/1) ... [2023-11-21 18:30:34,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:34" (1/1) ... [2023-11-21 18:30:34,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:30:34,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:30:34,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:30:34,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:30:34,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:34" (1/1) ... [2023-11-21 18:30:34,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:30:34,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:30:34,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:30:34,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:30:34,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:30:34,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:30:34,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:30:34,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:30:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:30:34,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:30:34,356 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:30:34,359 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:31:29,179 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:31:29,213 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:31:29,213 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:31:29,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:31:29 BoogieIcfgContainer [2023-11-21 18:31:29,215 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:31:29,216 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:31:29,217 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:31:29,226 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:31:29,227 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:31:29" (1/1) ... [2023-11-21 18:31:29,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:31:29,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:29,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 138 states and 145 transitions. [2023-11-21 18:31:29,318 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 145 transitions. [2023-11-21 18:31:29,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:31:29,320 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:29,321 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:31:29,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:31:29,324 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:31:29,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:31:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:29,462 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:31:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:29,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:31:29,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:29,498 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 18:31:29,504 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:31:29,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:31:29,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:29,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 137 states and 143 transitions. [2023-11-21 18:31:29,531 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 143 transitions. [2023-11-21 18:31:29,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:31:29,531 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:29,532 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:31:29,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:31:29,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:31:29,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:31:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:29,630 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:31:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:29,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:31:29,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:29,738 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 18:31:29,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-21 18:31:29,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:29,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 140 states and 147 transitions. [2023-11-21 18:31:29,880 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 147 transitions. [2023-11-21 18:31:29,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:31:29,880 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:29,880 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:31:29,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:31:29,882 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:31:29,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-21 18:31:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:30,015 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:31:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:30,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:31:30,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:30,122 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 18:31:30,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-21 18:31:30,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:30,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 145 states and 155 transitions. [2023-11-21 18:31:30,874 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 155 transitions. [2023-11-21 18:31:30,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:31:30,874 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:30,875 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:31:30,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:31:30,876 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:31:30,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-21 18:31:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:30,981 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:31:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:30,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:31:30,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:31,040 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 18:31:31,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-21 18:31:31,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:31,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 146 states and 157 transitions. [2023-11-21 18:31:31,073 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 157 transitions. [2023-11-21 18:31:31,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:31:31,074 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:31,074 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:31:31,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:31:31,075 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:31:31,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-21 18:31:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:31,207 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:31:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:31,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:31:31,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:31,284 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 18:31:31,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-21 18:31:31,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:31,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 147 states and 158 transitions. [2023-11-21 18:31:31,341 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2023-11-21 18:31:31,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:31:31,342 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:31,342 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:31:31,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:31:31,348 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:31:31,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-21 18:31:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:31,452 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:31:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:31,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:31:31,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:31,526 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 18:31:31,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-11-21 18:31:31,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:31,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 148 states and 159 transitions. [2023-11-21 18:31:31,720 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 159 transitions. [2023-11-21 18:31:31,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:31:31,720 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:31,721 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:31:31,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:31:31,722 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:31:31,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-21 18:31:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:31,946 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:31:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:31,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:31:31,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:32,054 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 18:31:32,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b9e405-5f8a-4144-940d-2fff293be747/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0