./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7383f54d0aefdd248f516d45c67549426beac87be78bf6e7bb8108aedb7974b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:42:14,260 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:42:14,359 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 23:42:14,366 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:42:14,369 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:42:14,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:42:14,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:42:14,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:42:14,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:42:14,398 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:42:14,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:42:14,399 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:42:14,400 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:42:14,400 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:42:14,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:42:14,401 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:42:14,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:42:14,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:42:14,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:42:14,403 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:42:14,403 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:42:14,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:42:14,404 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:42:14,404 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:42:14,405 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:42:14,405 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:42:14,406 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:42:14,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:42:14,407 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:42:14,407 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:42:14,407 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:42:14,408 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:42:14,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:42:14,409 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_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7383f54d0aefdd248f516d45c67549426beac87be78bf6e7bb8108aedb7974b [2024-11-08 23:42:14,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:42:14,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:42:14,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:42:14,718 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:42:14,719 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:42:14,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c Unable to find full path for "g++" [2024-11-08 23:42:16,776 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:42:16,988 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:42:16,988 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c [2024-11-08 23:42:16,995 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk/data/30470ecc0/ba17b7c832ae4bfcb114f4adf28e6678/FLAG40f22153b [2024-11-08 23:42:17,381 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk/data/30470ecc0/ba17b7c832ae4bfcb114f4adf28e6678 [2024-11-08 23:42:17,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:42:17,385 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:42:17,386 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:42:17,386 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:42:17,392 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:42:17,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:42:17" (1/1) ... [2024-11-08 23:42:17,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d7c1eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:17, skipping insertion in model container [2024-11-08 23:42:17,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:42:17" (1/1) ... [2024-11-08 23:42:17,414 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:42:17,607 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c[526,539] [2024-11-08 23:42:17,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:42:17,638 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:42:17,650 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c[526,539] [2024-11-08 23:42:17,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:42:17,679 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:42:17,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:17 WrapperNode [2024-11-08 23:42:17,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:42:17,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:42:17,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:42:17,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:42:17,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:17" (1/1) ... [2024-11-08 23:42:17,697 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:17" (1/1) ... [2024-11-08 23:42:17,716 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2024-11-08 23:42:17,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:42:17,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:42:17,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:42:17,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:42:17,726 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:17" (1/1) ... [2024-11-08 23:42:17,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:17" (1/1) ... [2024-11-08 23:42:17,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:17" (1/1) ... [2024-11-08 23:42:17,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:17" (1/1) ... [2024-11-08 23:42:17,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:17" (1/1) ... [2024-11-08 23:42:17,736 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:17" (1/1) ... [2024-11-08 23:42:17,737 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:17" (1/1) ... [2024-11-08 23:42:17,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:17" (1/1) ... [2024-11-08 23:42:17,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:42:17,745 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:42:17,745 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:42:17,745 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:42:17,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:17" (1/1) ... [2024-11-08 23:42:17,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:42:17,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:42:17,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:42:17,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:42:17,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:42:17,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:42:17,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:42:17,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:42:17,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 23:42:17,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 23:42:17,922 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:42:17,925 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:42:18,205 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-08 23:42:18,205 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:42:18,280 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:42:18,280 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 23:42:18,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:42:18 BoogieIcfgContainer [2024-11-08 23:42:18,281 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:42:18,283 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:42:18,283 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:42:18,296 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:42:18,296 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:42:18" (1/1) ... [2024-11-08 23:42:18,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:42:18,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:42:18,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2024-11-08 23:42:18,386 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2024-11-08 23:42:18,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:42:18,389 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:42:18,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:42:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:42:18,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:42:18,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:42:18,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2024-11-08 23:42:18,591 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2024-11-08 23:42:18,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:42:18,592 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:42:18,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:42:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:42:18,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:42:18,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:42:18,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 43 transitions. [2024-11-08 23:42:18,957 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2024-11-08 23:42:18,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 23:42:18,965 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:42:18,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:42:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:42:19,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:42:19,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:42:19,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 46 transitions. [2024-11-08 23:42:19,419 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2024-11-08 23:42:19,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 23:42:19,419 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:42:19,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:42:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:42:19,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:42:20,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:42:20,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 52 transitions. [2024-11-08 23:42:20,021 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2024-11-08 23:42:20,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-08 23:42:20,021 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:42:20,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:42:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 23:42:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:42:20,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 23:42:20,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:42:20,355 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 23:42:21,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:42:21,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 38 states and 61 transitions. [2024-11-08 23:42:21,123 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2024-11-08 23:42:21,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 23:42:21,128 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:42:21,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:42:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 23:42:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:42:21,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 23:42:21,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:42:21,371 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 23:42:21,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:42:21,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 42 states and 72 transitions. [2024-11-08 23:42:21,950 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 72 transitions. [2024-11-08 23:42:21,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 23:42:21,951 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:42:21,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:42:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:42:22,178 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 23:42:23,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:42:23,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 48 states and 85 transitions. [2024-11-08 23:42:23,179 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2024-11-08 23:42:23,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-08 23:42:23,181 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:42:23,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:42:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 23:42:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:42:23,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 23:42:23,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:42:23,320 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 23:42:23,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:42:23,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 50 states and 86 transitions. [2024-11-08 23:42:23,711 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 86 transitions. [2024-11-08 23:42:23,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-08 23:42:23,712 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:42:23,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:42:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:42:23,987 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 23:42:24,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:42:24,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 50 states and 85 transitions. [2024-11-08 23:42:24,403 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 85 transitions. [2024-11-08 23:42:24,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 23:42:24,404 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:42:24,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:42:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:42:24,536 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 23:42:25,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:42:25,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 55 states and 96 transitions. [2024-11-08 23:42:25,285 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 96 transitions. [2024-11-08 23:42:25,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-08 23:42:25,287 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:42:25,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:42:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 23:42:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:42:25,345 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:42:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:42:25,395 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2024-11-08 23:42:25,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:42:25 ImpRootNode [2024-11-08 23:42:25,445 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:42:25,446 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:42:25,446 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:42:25,447 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:42:25,448 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:42:18" (3/4) ... [2024-11-08 23:42:25,449 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 23:42:25,526 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 23:42:25,526 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:42:25,527 INFO L158 Benchmark]: Toolchain (without parser) took 8141.54ms. Allocated memory was 151.0MB in the beginning and 190.8MB in the end (delta: 39.8MB). Free memory was 116.1MB in the beginning and 76.5MB in the end (delta: 39.6MB). Peak memory consumption was 82.5MB. Max. memory is 16.1GB. [2024-11-08 23:42:25,527 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 151.0MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:42:25,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.05ms. Allocated memory is still 151.0MB. Free memory was 116.1MB in the beginning and 103.0MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 23:42:25,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.09ms. Allocated memory is still 151.0MB. Free memory was 103.0MB in the beginning and 101.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:42:25,528 INFO L158 Benchmark]: Boogie Preprocessor took 26.25ms. Allocated memory is still 151.0MB. Free memory was 101.5MB in the beginning and 100.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:42:25,528 INFO L158 Benchmark]: RCFGBuilder took 536.39ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 87.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 23:42:25,533 INFO L158 Benchmark]: CodeCheck took 7162.69ms. Allocated memory was 151.0MB in the beginning and 190.8MB in the end (delta: 39.8MB). Free memory was 87.3MB in the beginning and 78.6MB in the end (delta: 8.7MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. [2024-11-08 23:42:25,533 INFO L158 Benchmark]: Witness Printer took 79.87ms. Allocated memory is still 190.8MB. Free memory was 78.6MB in the beginning and 76.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:42:25,535 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, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 615 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 181 mSDsluCounter, 577 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 155 mSDsCounter, 368 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1164 IncrementalHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 368 mSolverCounterUnsat, 422 mSDtfsCounter, 1164 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1695 GetRequests, 1548 SyntacticMatches, 25 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5931 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 453 SizeOfPredicates, 3 NumberOfNonLiveVariables, 288 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 104/118 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 - CounterExampleResult [Line: 17]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L22] int counter = 0; [L24] int A, B; [L25] int r, d, p, q; [L26] A = __VERIFIER_nondet_int() [L27] B = 1 [L29] r = A [L30] d = B [L31] p = 1 [L32] q = 0 VAL [A=1, B=1, counter=0, d=1, p=1, q=0, r=1] [L34] EXPR counter++ VAL [A=1, B=1, counter=1, d=1, p=1, q=0, r=1] [L34] COND TRUE counter++<1 [L35] CALL __VERIFIER_assert(q == 0) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L35] RET __VERIFIER_assert(q == 0) VAL [A=1, B=1, counter=1, d=1, p=1, q=0, r=1] [L36] CALL __VERIFIER_assert(r == A) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L36] RET __VERIFIER_assert(r == A) VAL [A=1, B=1, counter=1, d=1, p=1, q=0, r=1] [L37] CALL __VERIFIER_assert(d == B * p) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L37] RET __VERIFIER_assert(d == B * p) VAL [A=1, B=1, counter=1, d=1, p=1, q=0, r=1] [L38] COND FALSE !(!(r >= d)) [L40] d = 2 * d [L41] p = 2 * p VAL [A=1, B=1, counter=1, d=2, p=2, q=0, r=1] [L34] EXPR counter++ VAL [A=1, B=1, counter=2, d=2, p=2, q=0, r=1] [L34] COND FALSE !(counter++<1) [L44] EXPR counter++ VAL [A=1, B=1, counter=3, d=2, p=2, q=0, r=1] [L44] COND FALSE !(counter++<1) [L58] CALL __VERIFIER_assert(A == d*q + r) VAL [\old(cond)=1, counter=3] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=3] [L58] RET __VERIFIER_assert(A == d*q + r) VAL [A=1, B=1, counter=3, d=2, p=2, q=0, r=1] [L59] CALL __VERIFIER_assert(B == d) VAL [\old(cond)=0, counter=3] [L15] COND TRUE !(cond) VAL [\old(cond)=0, counter=3] [L17] reach_error() VAL [\old(cond)=0, counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 151.0MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.05ms. Allocated memory is still 151.0MB. Free memory was 116.1MB in the beginning and 103.0MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.09ms. Allocated memory is still 151.0MB. Free memory was 103.0MB in the beginning and 101.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.25ms. Allocated memory is still 151.0MB. Free memory was 101.5MB in the beginning and 100.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 536.39ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 87.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 7162.69ms. Allocated memory was 151.0MB in the beginning and 190.8MB in the end (delta: 39.8MB). Free memory was 87.3MB in the beginning and 78.6MB in the end (delta: 8.7MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. * Witness Printer took 79.87ms. Allocated memory is still 190.8MB. Free memory was 78.6MB in the beginning and 76.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-08 23:42:25,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019366ab-6200-4177-a508-687887cc90e3/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE