./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b --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 0.3.0-dev-d790fec [2024-12-06 03:05:47,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:05:47,278 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 03:05:47,282 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:05:47,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:05:47,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:05:47,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:05:47,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:05:47,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:05:47,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:05:47,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:05:47,303 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:05:47,303 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:05:47,303 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:05:47,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:05:47,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:05:47,304 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:05:47,304 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:05:47,304 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:05:47,304 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:05:47,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:05:47,304 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:05:47,304 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:05:47,304 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:05:47,305 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:05:47,305 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:05:47,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:05:47,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:05:47,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:05:47,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:05:47,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:05:47,306 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:05:47,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:05:47,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b 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 [2024-12-06 03:05:47,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:05:47,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:05:47,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:05:47,538 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:05:47,538 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:05:47,539 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c [2024-12-06 03:05:50,263 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/data/895e47320/a0812b5106f548ecbde4bce64e91a220/FLAGf1d2135d6 [2024-12-06 03:05:50,472 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:05:50,473 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c [2024-12-06 03:05:50,480 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/data/895e47320/a0812b5106f548ecbde4bce64e91a220/FLAGf1d2135d6 [2024-12-06 03:05:50,847 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/data/895e47320/a0812b5106f548ecbde4bce64e91a220 [2024-12-06 03:05:50,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:05:50,850 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:05:50,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:05:50,851 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:05:50,855 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:05:50,856 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:05:50" (1/1) ... [2024-12-06 03:05:50,857 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1885814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:05:50, skipping insertion in model container [2024-12-06 03:05:50,857 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:05:50" (1/1) ... [2024-12-06 03:05:50,870 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:05:50,990 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_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c[526,539] [2024-12-06 03:05:51,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:05:51,010 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:05:51,019 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_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c[526,539] [2024-12-06 03:05:51,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:05:51,039 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:05:51,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:05:51 WrapperNode [2024-12-06 03:05:51,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:05:51,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:05:51,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:05:51,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:05:51,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:05:51" (1/1) ... [2024-12-06 03:05:51,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:05:51" (1/1) ... [2024-12-06 03:05:51,069 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2024-12-06 03:05:51,069 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:05:51,070 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:05:51,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:05:51,070 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:05:51,077 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:05:51" (1/1) ... [2024-12-06 03:05:51,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:05:51" (1/1) ... [2024-12-06 03:05:51,078 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:05:51" (1/1) ... [2024-12-06 03:05:51,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:05:51" (1/1) ... [2024-12-06 03:05:51,082 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:05:51" (1/1) ... [2024-12-06 03:05:51,082 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:05:51" (1/1) ... [2024-12-06 03:05:51,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:05:51" (1/1) ... [2024-12-06 03:05:51,087 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:05:51" (1/1) ... [2024-12-06 03:05:51,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:05:51" (1/1) ... [2024-12-06 03:05:51,088 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:05:51,089 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:05:51,089 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:05:51,089 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:05:51,090 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:05:51" (1/1) ... [2024-12-06 03:05:51,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:05:51,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:05:51,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:05:51,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:05:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:05:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:05:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:05:51,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:05:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 03:05:51,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 03:05:51,198 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:05:51,199 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:05:51,310 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-12-06 03:05:51,310 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:05:51,338 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:05:51,338 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-06 03:05:51,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:05:51 BoogieIcfgContainer [2024-12-06 03:05:51,339 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:05:51,339 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:05:51,339 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:05:51,346 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:05:51,346 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:05:51" (1/1) ... [2024-12-06 03:05:51,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:05:51,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:05:51,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2024-12-06 03:05:51,393 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2024-12-06 03:05:51,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 03:05:51,395 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:05:51,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:05:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:05:51,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:05:51,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:05:51,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2024-12-06 03:05:51,523 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2024-12-06 03:05:51,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 03:05:51,523 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:05:51,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:05:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:05:51,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:05:51,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:05:51,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 43 transitions. [2024-12-06 03:05:51,736 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2024-12-06 03:05:51,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 03:05:51,740 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:05:51,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:05:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:05:51,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:05:51,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:05:51,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 46 transitions. [2024-12-06 03:05:51,997 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2024-12-06 03:05:51,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 03:05:51,997 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:05:51,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:05:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:05:52,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:05:52,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:05:52,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 52 transitions. [2024-12-06 03:05:52,376 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2024-12-06 03:05:52,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-06 03:05:52,376 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:05:52,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:05:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:05:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:05:52,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-06 03:05:52,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:05:52,580 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 03:05:53,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:05:53,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 38 states and 61 transitions. [2024-12-06 03:05:53,178 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2024-12-06 03:05:53,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-06 03:05:53,179 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:05:53,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:05:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:05:53,334 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-06 03:05:53,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:05:53,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 44 states and 76 transitions. [2024-12-06 03:05:53,957 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 76 transitions. [2024-12-06 03:05:53,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-06 03:05:53,957 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:05:53,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:05:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:05:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:05:53,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-06 03:05:53,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:05:54,149 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-06 03:05:54,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:05:54,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 48 states and 86 transitions. [2024-12-06 03:05:54,922 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 86 transitions. [2024-12-06 03:05:54,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 03:05:54,923 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:05:54,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:05:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:05:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:05:54,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-06 03:05:54,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:05:55,028 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-06 03:05:55,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:05:55,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 50 states and 89 transitions. [2024-12-06 03:05:55,315 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 89 transitions. [2024-12-06 03:05:55,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 03:05:55,316 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:05:55,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:05:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:05:55,492 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-06 03:05:55,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:05:55,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 50 states and 88 transitions. [2024-12-06 03:05:55,815 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 88 transitions. [2024-12-06 03:05:55,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 03:05:55,816 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:05:55,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:05:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:05:55,933 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-06 03:05:56,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:05:56,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 55 states and 99 transitions. [2024-12-06 03:05:56,464 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2024-12-06 03:05:56,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-12-06 03:05:56,464 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:05:56,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:05:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:05:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:05:56,504 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:05:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:05:56,530 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2024-12-06 03:05:56,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:05:56 ImpRootNode [2024-12-06 03:05:56,559 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:05:56,560 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:05:56,560 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:05:56,560 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:05:56,560 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:05:51" (3/4) ... [2024-12-06 03:05:56,561 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 03:05:56,602 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 19. [2024-12-06 03:05:56,653 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 03:05:56,653 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 03:05:56,653 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:05:56,654 INFO L158 Benchmark]: Toolchain (without parser) took 5803.84ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 92.8MB in the beginning and 188.0MB in the end (delta: -95.2MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-12-06 03:05:56,654 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:05:56,655 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.81ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.5MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:05:56,655 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.72ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:05:56,655 INFO L158 Benchmark]: Boogie Preprocessor took 18.85ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.2MB in the end (delta: 883.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:05:56,656 INFO L158 Benchmark]: RCFGBuilder took 249.38ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 66.8MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:05:56,656 INFO L158 Benchmark]: CodeCheck took 5219.87ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 66.8MB in the beginning and 193.0MB in the end (delta: -126.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:05:56,656 INFO L158 Benchmark]: Witness Printer took 93.64ms. Allocated memory is still 226.5MB. Free memory was 193.0MB in the beginning and 188.0MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:05:56,658 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: 5.2s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 598 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 611 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 200 mSDsCounter, 386 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1148 IncrementalHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 386 mSolverCounterUnsat, 411 mSDtfsCounter, 1148 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1700 GetRequests, 1545 SyntacticMatches, 25 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7094 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 445 SizeOfPredicates, 3 NumberOfNonLiveVariables, 288 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 111/118 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, ConComCheckerStatistics: 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 0.40ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.81ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.5MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.72ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.85ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.2MB in the end (delta: 883.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 249.38ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 66.8MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 5219.87ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 66.8MB in the beginning and 193.0MB in the end (delta: -126.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 93.64ms. Allocated memory is still 226.5MB. Free memory was 193.0MB in the beginning and 188.0MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 03:05:56,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2452ea2-f99a-47b6-83f9-2ad261e21e4f/bin/ukojak-verify-CZk0znPC7b/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