./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i --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_df8caddc-630b-4b2a-9a82-16262e762f83/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df8caddc-630b-4b2a-9a82-16262e762f83/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_df8caddc-630b-4b2a-9a82-16262e762f83/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df8caddc-630b-4b2a-9a82-16262e762f83/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df8caddc-630b-4b2a-9a82-16262e762f83/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_df8caddc-630b-4b2a-9a82-16262e762f83/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 e5903ff87e76f5c38f2f015436bd4a2c11a1411b3a93f272aa9f876a0a3f4d37 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:29:47,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:29:47,365 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df8caddc-630b-4b2a-9a82-16262e762f83/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:29:47,371 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:29:47,372 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:29:47,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:29:47,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:29:47,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:29:47,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:29:47,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:29:47,414 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:29:47,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:29:47,415 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:29:47,415 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:29:47,415 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:29:47,416 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:29:47,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:29:47,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:29:47,417 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:29:47,417 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:29:47,421 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:29:47,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:29:47,422 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:29:47,423 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:29:47,423 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:29:47,423 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:29:47,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:29:47,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:29:47,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:29:47,425 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:29:47,425 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:29:47,427 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:29:47,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:29:47,428 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_df8caddc-630b-4b2a-9a82-16262e762f83/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df8caddc-630b-4b2a-9a82-16262e762f83/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5903ff87e76f5c38f2f015436bd4a2c11a1411b3a93f272aa9f876a0a3f4d37 [2024-11-09 00:29:47,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:29:47,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:29:47,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:29:47,730 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:29:47,731 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:29:47,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df8caddc-630b-4b2a-9a82-16262e762f83/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i Unable to find full path for "g++" [2024-11-09 00:29:49,785 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:29:49,982 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:29:49,983 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df8caddc-630b-4b2a-9a82-16262e762f83/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i [2024-11-09 00:29:49,992 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df8caddc-630b-4b2a-9a82-16262e762f83/bin/ukojak-verify-ImItNfHLgk/data/e0d9f2265/105644e742734f98b963d48902ed6714/FLAG99b5fa05c [2024-11-09 00:29:50,007 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df8caddc-630b-4b2a-9a82-16262e762f83/bin/ukojak-verify-ImItNfHLgk/data/e0d9f2265/105644e742734f98b963d48902ed6714 [2024-11-09 00:29:50,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:29:50,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:29:50,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:29:50,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:29:50,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:29:50,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:29:50" (1/1) ... [2024-11-09 00:29:50,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11ed86b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:29:50, skipping insertion in model container [2024-11-09 00:29:50,022 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:29:50" (1/1) ... [2024-11-09 00:29:50,043 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:29:50,259 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_df8caddc-630b-4b2a-9a82-16262e762f83/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i[950,963] [2024-11-09 00:29:50,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:29:50,290 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:29:50,300 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_df8caddc-630b-4b2a-9a82-16262e762f83/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i[950,963] [2024-11-09 00:29:50,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:29:50,325 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:29:50,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:29:50 WrapperNode [2024-11-09 00:29:50,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:29:50,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:29:50,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:29:50,327 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:29:50,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:29:50" (1/1) ... [2024-11-09 00:29:50,344 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:29:50" (1/1) ... [2024-11-09 00:29:50,358 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2024-11-09 00:29:50,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:29:50,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:29:50,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:29:50,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:29:50,370 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:29:50" (1/1) ... [2024-11-09 00:29:50,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:29:50" (1/1) ... [2024-11-09 00:29:50,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:29:50" (1/1) ... [2024-11-09 00:29:50,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:29:50" (1/1) ... [2024-11-09 00:29:50,375 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:29:50" (1/1) ... [2024-11-09 00:29:50,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:29:50" (1/1) ... [2024-11-09 00:29:50,380 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:29:50" (1/1) ... [2024-11-09 00:29:50,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:29:50" (1/1) ... [2024-11-09 00:29:50,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:29:50,383 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:29:50,384 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:29:50,384 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:29:50,385 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:29:50" (1/1) ... [2024-11-09 00:29:50,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:29:50,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df8caddc-630b-4b2a-9a82-16262e762f83/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:29:50,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df8caddc-630b-4b2a-9a82-16262e762f83/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:29:50,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df8caddc-630b-4b2a-9a82-16262e762f83/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:29:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:29:50,452 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 00:29:50,452 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 00:29:50,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:29:50,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:29:50,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:29:50,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 00:29:50,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 00:29:50,524 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:29:50,526 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:29:50,681 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-09 00:29:50,682 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:29:50,745 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:29:50,749 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 00:29:50,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:29:50 BoogieIcfgContainer [2024-11-09 00:29:50,750 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:29:50,751 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:29:50,751 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:29:50,763 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:29:50,763 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:29:50" (1/1) ... [2024-11-09 00:29:50,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:29:50,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:29:50,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2024-11-09 00:29:50,836 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2024-11-09 00:29:50,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 00:29:50,840 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:29:50,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:29:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:29:50,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:29:51,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:29:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2024-11-09 00:29:51,056 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2024-11-09 00:29:51,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 00:29:51,057 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:29:51,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:29:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:29:51,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:29:51,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:29:51,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 30 transitions. [2024-11-09 00:29:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2024-11-09 00:29:51,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 00:29:51,349 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:29:51,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:29:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:29:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:29:51,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 00:29:51,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:29:51,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 00:29:52,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:29:52,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 32 states and 48 transitions. [2024-11-09 00:29:52,072 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2024-11-09 00:29:52,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 00:29:52,075 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:29:52,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:29:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:29:52,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:29:52,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:29:52,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 35 states and 54 transitions. [2024-11-09 00:29:52,877 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 54 transitions. [2024-11-09 00:29:52,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 00:29:52,879 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:29:52,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:29:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:29:53,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 00:29:53,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:29:53,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 35 states and 53 transitions. [2024-11-09 00:29:53,321 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2024-11-09 00:29:53,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 00:29:53,322 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:29:53,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:29:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:29:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:29:53,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 00:29:53,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:29:53,481 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 00:29:53,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:29:53,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 32 states and 46 transitions. [2024-11-09 00:29:53,807 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2024-11-09 00:29:53,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 00:29:53,808 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:29:53,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:29:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:29:53,923 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:29:54,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:29:54,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 20 states and 21 transitions. [2024-11-09 00:29:54,291 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2024-11-09 00:29:54,292 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 00:29:54,292 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2024-11-09 00:29:54,303 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-09 00:29:54,454 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-09 00:29:54,454 INFO L77 FloydHoareUtils]: At program point L31(line 31) the Hoare annotation is: (= ~counter~0 0) [2024-11-09 00:29:54,455 INFO L77 FloydHoareUtils]: At program point L31-1(line 31) the Hoare annotation is: true [2024-11-09 00:29:54,455 INFO L77 FloydHoareUtils]: At program point L50(line 50) the Hoare annotation is: true [2024-11-09 00:29:54,455 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-09 00:29:54,455 INFO L77 FloydHoareUtils]: At program point L40(lines 40 49) the Hoare annotation is: true [2024-11-09 00:29:54,455 INFO L77 FloydHoareUtils]: At program point L40-2(lines 40 49) the Hoare annotation is: true [2024-11-09 00:29:54,457 INFO L77 FloydHoareUtils]: At program point L36-1(lines 36 39) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_main_#t~post3#1| 1) ~counter~0) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|)) [2024-11-09 00:29:54,458 INFO L77 FloydHoareUtils]: At program point L36-3(lines 36 39) the Hoare annotation is: (and (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|)) [2024-11-09 00:29:54,458 INFO L77 FloydHoareUtils]: At program point L32(line 32) the Hoare annotation is: true [2024-11-09 00:29:54,458 INFO L77 FloydHoareUtils]: At program point L45-2(lines 40 49) the Hoare annotation is: true [2024-11-09 00:29:54,458 INFO L77 FloydHoareUtils]: At program point L41(line 41) the Hoare annotation is: true [2024-11-09 00:29:54,458 INFO L77 FloydHoareUtils]: At program point L41-1(lines 40 49) the Hoare annotation is: true [2024-11-09 00:29:54,459 INFO L77 FloydHoareUtils]: At program point L37(line 37) the Hoare annotation is: (and (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|)) [2024-11-09 00:29:54,459 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 15 17) the Hoare annotation is: true [2024-11-09 00:29:54,459 INFO L77 FloydHoareUtils]: At program point assume_abort_if_notEXIT(lines 15 17) the Hoare annotation is: true [2024-11-09 00:29:54,459 INFO L77 FloydHoareUtils]: At program point L19-2(lines 18 24) the Hoare annotation is: true [2024-11-09 00:29:54,461 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 18 24) the Hoare annotation is: true [2024-11-09 00:29:54,461 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 18 24) the Hoare annotation is: true [2024-11-09 00:29:54,461 INFO L77 FloydHoareUtils]: At program point L20(lines 20 21) the Hoare annotation is: true [2024-11-09 00:29:54,461 INFO L77 FloydHoareUtils]: At program point L19(lines 19 22) the Hoare annotation is: true [2024-11-09 00:29:54,462 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) the Hoare annotation is: true [2024-11-09 00:29:54,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:29:54 ImpRootNode [2024-11-09 00:29:54,483 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:29:54,484 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:29:54,484 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:29:54,485 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:29:54,485 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:29:50" (3/4) ... [2024-11-09 00:29:54,488 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 00:29:54,492 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-09 00:29:54,492 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 00:29:54,496 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 00:29:54,497 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 00:29:54,497 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 00:29:54,497 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 00:29:54,598 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df8caddc-630b-4b2a-9a82-16262e762f83/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:29:54,598 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df8caddc-630b-4b2a-9a82-16262e762f83/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-09 00:29:54,598 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:29:54,599 INFO L158 Benchmark]: Toolchain (without parser) took 4588.23ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 114.7MB in the beginning and 83.3MB in the end (delta: 31.4MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. [2024-11-09 00:29:54,600 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 153.1MB. Free memory is still 99.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:29:54,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.48ms. Allocated memory is still 153.1MB. Free memory was 114.7MB in the beginning and 102.0MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 00:29:54,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.23ms. Allocated memory is still 153.1MB. Free memory was 102.0MB in the beginning and 100.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:29:54,601 INFO L158 Benchmark]: Boogie Preprocessor took 21.50ms. Allocated memory is still 153.1MB. Free memory was 100.6MB in the beginning and 99.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:29:54,601 INFO L158 Benchmark]: RCFGBuilder took 366.46ms. Allocated memory is still 153.1MB. Free memory was 99.0MB in the beginning and 86.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 00:29:54,602 INFO L158 Benchmark]: CodeCheck took 3733.23ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 86.4MB in the beginning and 87.5MB in the end (delta: -1.1MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. [2024-11-09 00:29:54,602 INFO L158 Benchmark]: Witness Printer took 114.30ms. Allocated memory is still 197.1MB. Free memory was 87.5MB in the beginning and 83.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:29:54,604 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 3 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 435 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 307 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 444 IncrementalHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 253 mSDtfsCounter, 444 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 946 GetRequests, 871 SyntacticMatches, 11 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1325 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 271 SizeOfPredicates, 4 NumberOfNonLiveVariables, 121 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 19/21 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 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 15]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (counter == \old(counter)) - ProcedureContractResult [Line: 18]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 153.1MB. Free memory is still 99.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.48ms. Allocated memory is still 153.1MB. Free memory was 114.7MB in the beginning and 102.0MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.23ms. Allocated memory is still 153.1MB. Free memory was 102.0MB in the beginning and 100.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.50ms. Allocated memory is still 153.1MB. Free memory was 100.6MB in the beginning and 99.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 366.46ms. Allocated memory is still 153.1MB. Free memory was 99.0MB in the beginning and 86.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 3733.23ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 86.4MB in the beginning and 87.5MB in the end (delta: -1.1MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. * Witness Printer took 114.30ms. Allocated memory is still 197.1MB. Free memory was 87.5MB in the beginning and 83.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-09 00:29:54,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df8caddc-630b-4b2a-9a82-16262e762f83/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 Result: TRUE