./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9 --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 f4dc35f578dc1494a61593c536b677f3beb3e4db21638b64de73547c5a37e2be --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:49:33,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:49:33,493 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 21:49:33,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:49:33,498 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:49:33,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:49:33,520 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:49:33,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:49:33,521 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:49:33,522 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:49:33,523 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:49:33,523 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:49:33,523 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:49:33,524 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:49:33,524 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:49:33,525 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:49:33,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:49:33,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:49:33,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:49:33,527 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:49:33,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:49:33,528 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:49:33,529 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:49:33,529 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:49:33,530 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:49:33,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:49:33,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:49:33,531 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:49:33,532 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:49:33,532 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:49:33,532 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:49:33,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:49:33,533 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:49:33,533 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_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4dc35f578dc1494a61593c536b677f3beb3e4db21638b64de73547c5a37e2be [2023-12-02 21:49:33,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:49:33,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:49:33,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:49:33,780 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:49:33,780 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:49:33,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c [2023-12-02 21:49:36,533 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:49:36,691 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:49:36,692 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c [2023-12-02 21:49:36,700 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/data/bf72fe640/8a855cb48cd34cb2a379e81d6e7d238b/FLAG103ecc613 [2023-12-02 21:49:37,084 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/data/bf72fe640/8a855cb48cd34cb2a379e81d6e7d238b [2023-12-02 21:49:37,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:49:37,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:49:37,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:49:37,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:49:37,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:49:37,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:49:37" (1/1) ... [2023-12-02 21:49:37,094 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fef0db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:37, skipping insertion in model container [2023-12-02 21:49:37,094 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:49:37" (1/1) ... [2023-12-02 21:49:37,112 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:49:37,243 WARN L240 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_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c[709,722] [2023-12-02 21:49:37,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:49:37,271 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:49:37,283 WARN L240 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_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c[709,722] [2023-12-02 21:49:37,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:49:37,305 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:49:37,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:37 WrapperNode [2023-12-02 21:49:37,306 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:49:37,307 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:49:37,307 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:49:37,307 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:49:37,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:37" (1/1) ... [2023-12-02 21:49:37,319 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:37" (1/1) ... [2023-12-02 21:49:37,337 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2023-12-02 21:49:37,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:49:37,338 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:49:37,338 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:49:37,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:49:37,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:37" (1/1) ... [2023-12-02 21:49:37,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:37" (1/1) ... [2023-12-02 21:49:37,345 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:37" (1/1) ... [2023-12-02 21:49:37,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:37" (1/1) ... [2023-12-02 21:49:37,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:37" (1/1) ... [2023-12-02 21:49:37,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:37" (1/1) ... [2023-12-02 21:49:37,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:37" (1/1) ... [2023-12-02 21:49:37,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:37" (1/1) ... [2023-12-02 21:49:37,354 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:49:37,355 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:49:37,355 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:49:37,355 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:49:37,356 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:37" (1/1) ... [2023-12-02 21:49:37,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:49:37,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:49:37,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:49:37,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:49:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:49:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:49:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:49:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:49:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 21:49:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 21:49:37,459 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:49:37,461 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:49:37,561 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:49:37,582 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:49:37,582 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:49:37,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:49:37 BoogieIcfgContainer [2023-12-02 21:49:37,583 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:49:37,584 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:49:37,584 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:49:37,592 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:49:37,592 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:49:37" (1/1) ... [2023-12-02 21:49:37,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:49:37,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:37,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2023-12-02 21:49:37,647 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2023-12-02 21:49:37,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 21:49:37,648 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:37,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:49:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:37,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:49:37,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:37,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:49:37,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:37,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-12-02 21:49:37,799 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-12-02 21:49:37,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:49:37,800 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:37,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:49:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:37,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:49:37,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:37,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:49:37,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:37,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-12-02 21:49:37,930 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-12-02 21:49:37,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:49:37,930 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:37,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:49:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 21:49:37,959 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 21:49:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 21:49:37,978 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-12-02 21:49:38,000 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated [2023-12-02 21:49:38,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 09:49:38 ImpRootNode [2023-12-02 21:49:38,005 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 21:49:38,006 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 21:49:38,006 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 21:49:38,006 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 21:49:38,006 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:49:37" (3/4) ... [2023-12-02 21:49:38,009 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 21:49:38,010 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 21:49:38,011 INFO L158 Benchmark]: Toolchain (without parser) took 922.61ms. Allocated memory is still 174.1MB. Free memory was 136.9MB in the beginning and 104.2MB in the end (delta: 32.7MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2023-12-02 21:49:38,011 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:49:38,012 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.12ms. Allocated memory is still 174.1MB. Free memory was 136.7MB in the beginning and 140.3MB in the end (delta: -3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 21:49:38,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.86ms. Allocated memory is still 174.1MB. Free memory was 140.3MB in the beginning and 138.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 21:49:38,013 INFO L158 Benchmark]: Boogie Preprocessor took 16.32ms. Allocated memory is still 174.1MB. Free memory was 138.9MB in the beginning and 137.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 21:49:38,014 INFO L158 Benchmark]: RCFGBuilder took 228.34ms. Allocated memory is still 174.1MB. Free memory was 137.4MB in the beginning and 126.6MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 21:49:38,014 INFO L158 Benchmark]: CodeCheck took 420.65ms. Allocated memory is still 174.1MB. Free memory was 126.6MB in the beginning and 104.6MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 21:49:38,015 INFO L158 Benchmark]: Witness Printer took 4.20ms. Allocated memory is still 174.1MB. Free memory was 104.6MB in the beginning and 104.2MB in the end (delta: 421.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 21:49:38,018 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 30 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of to_int at line 34. Possible FailurePath: [L24] int counter = 0; [L26] int r; [L27] double a, x, s; [L28] a = __VERIFIER_nondet_double() [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [a=2, counter=0, r=1, s=13/4, x=2] [L33] EXPR counter++ VAL [a=2, counter=1, r=1, s=13/4, x=2] [L33] COND TRUE counter++<5 [L34] CALL __VERIFIER_assert((int)(4*s) - 12*r*r == 1) VAL [\old(cond)=0, counter=1] [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, counter=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.12ms. Allocated memory is still 174.1MB. Free memory was 136.7MB in the beginning and 140.3MB in the end (delta: -3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.86ms. Allocated memory is still 174.1MB. Free memory was 140.3MB in the beginning and 138.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.32ms. Allocated memory is still 174.1MB. Free memory was 138.9MB in the beginning and 137.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 228.34ms. Allocated memory is still 174.1MB. Free memory was 137.4MB in the beginning and 126.6MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 420.65ms. Allocated memory is still 174.1MB. Free memory was 126.6MB in the beginning and 104.6MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.20ms. Allocated memory is still 174.1MB. Free memory was 104.6MB in the beginning and 104.2MB in the end (delta: 421.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 21:49:38,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9 --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 f4dc35f578dc1494a61593c536b677f3beb3e4db21638b64de73547c5a37e2be --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:49:39,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:49:40,065 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-02 21:49:40,098 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:49:40,099 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:49:40,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:49:40,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:49:40,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:49:40,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:49:40,102 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:49:40,102 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:49:40,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:49:40,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:49:40,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:49:40,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:49:40,105 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:49:40,105 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 21:49:40,106 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 21:49:40,106 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 21:49:40,107 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:49:40,107 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:49:40,113 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:49:40,113 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:49:40,114 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:49:40,114 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:49:40,114 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:49:40,115 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 21:49:40,115 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:49:40,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:49:40,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:49:40,117 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:49:40,117 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:49:40,117 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 21:49:40,117 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:49:40,118 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:49:40,118 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 21:49:40,118 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 21:49:40,118 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4dc35f578dc1494a61593c536b677f3beb3e4db21638b64de73547c5a37e2be [2023-12-02 21:49:40,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:49:40,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:49:40,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:49:40,415 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:49:40,415 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:49:40,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c [2023-12-02 21:49:43,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:49:43,459 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:49:43,459 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c [2023-12-02 21:49:43,468 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/data/7ea8afa29/586d6fe8ebc746bf9c987a63a9af8204/FLAG123b3380f [2023-12-02 21:49:43,483 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/data/7ea8afa29/586d6fe8ebc746bf9c987a63a9af8204 [2023-12-02 21:49:43,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:49:43,487 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:49:43,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:49:43,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:49:43,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:49:43,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:49:43" (1/1) ... [2023-12-02 21:49:43,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a6faa28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:43, skipping insertion in model container [2023-12-02 21:49:43,497 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:49:43" (1/1) ... [2023-12-02 21:49:43,519 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:49:43,674 WARN L240 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_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c[709,722] [2023-12-02 21:49:43,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:49:43,712 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:49:43,725 WARN L240 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_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound5.c[709,722] [2023-12-02 21:49:43,735 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:49:43,753 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:49:43,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:43 WrapperNode [2023-12-02 21:49:43,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:49:43,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:49:43,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:49:43,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:49:43,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:43" (1/1) ... [2023-12-02 21:49:43,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:43" (1/1) ... [2023-12-02 21:49:43,794 INFO L138 Inliner]: procedures = 15, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2023-12-02 21:49:43,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:49:43,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:49:43,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:49:43,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:49:43,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:43" (1/1) ... [2023-12-02 21:49:43,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:43" (1/1) ... [2023-12-02 21:49:43,808 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:43" (1/1) ... [2023-12-02 21:49:43,808 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:43" (1/1) ... [2023-12-02 21:49:43,816 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:43" (1/1) ... [2023-12-02 21:49:43,819 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:43" (1/1) ... [2023-12-02 21:49:43,821 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:43" (1/1) ... [2023-12-02 21:49:43,823 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:43" (1/1) ... [2023-12-02 21:49:43,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:49:43,827 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:49:43,827 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:49:43,827 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:49:43,828 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:43" (1/1) ... [2023-12-02 21:49:43,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:49:43,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:49:43,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:49:43,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:49:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:49:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 21:49:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:49:43,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:49:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 21:49:43,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 21:49:43,956 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:49:43,958 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:49:46,651 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:49:46,675 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:49:46,676 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:49:46,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:49:46 BoogieIcfgContainer [2023-12-02 21:49:46,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:49:46,679 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:49:46,679 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:49:46,690 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:49:46,690 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:49:46" (1/1) ... [2023-12-02 21:49:46,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:49:46,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:46,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2023-12-02 21:49:46,756 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2023-12-02 21:49:46,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 21:49:46,758 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:46,759 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:49:46,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:49:46,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:49:46,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 21:49:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:46,896 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:49:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:46,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:49:46,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:46,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:49:47,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 21:49:47,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:47,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-12-02 21:49:47,031 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-12-02 21:49:47,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:49:47,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:47,032 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:49:47,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:49:47,033 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:49:47,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 21:49:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:47,187 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:49:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:47,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:49:47,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:47,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:49:47,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 21:49:47,333 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 21:49:47,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:47,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-12-02 21:49:47,412 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-12-02 21:49:47,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:49:47,412 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:47,413 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:49:47,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:49:47,414 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:49:47,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 21:49:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:47,550 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:49:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:47,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 21:49:47,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:48,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:49:48,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 21:49:50,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:49:53,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:49:57,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.86s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:50:08,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:50:18,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:50:21,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:50:31,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:50:41,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:50:43,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:50:43,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 25 states and 41 transitions. [2023-12-02 21:50:43,221 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 41 transitions. [2023-12-02 21:50:43,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 21:50:43,225 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:50:43,225 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:50:43,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:50:43,227 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:50:43,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45bcb588-5bb3-43b8-9323-b6a88dcb5ca9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 21:50:43,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 21:50:43,671 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 21:50:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat