./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/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_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/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_3cef45cc-8f61-47d5-9b7f-78d001740af5/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 cb6ce2ff229d0487f93903d488050ba589e9ec8da79902739cdfa980edb7ba6d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:47:02,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:47:02,901 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 23:47:02,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:47:02,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:47:02,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:47:02,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:47:02,934 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:47:02,935 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:47:02,935 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:47:02,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:47:02,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:47:02,937 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:47:02,937 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:47:02,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:47:02,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:47:02,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:47:02,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:47:02,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:47:02,940 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:47:02,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:47:02,941 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:47:02,942 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:47:02,942 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:47:02,943 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:47:02,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:47:02,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:47:02,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:47:02,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:47:02,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:47:02,946 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:47:02,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:47:02,946 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:47:02,953 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_3cef45cc-8f61-47d5-9b7f-78d001740af5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb6ce2ff229d0487f93903d488050ba589e9ec8da79902739cdfa980edb7ba6d [2023-12-02 23:47:03,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:47:03,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:47:03,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:47:03,195 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:47:03,195 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:47:03,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c [2023-12-02 23:47:05,992 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:47:06,147 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:47:06,148 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c [2023-12-02 23:47:06,154 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/data/b0356053f/35c621df63b548caa6f909c4ba27f5fd/FLAGbbeb6d04a [2023-12-02 23:47:06,166 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/data/b0356053f/35c621df63b548caa6f909c4ba27f5fd [2023-12-02 23:47:06,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:47:06,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:47:06,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:47:06,170 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:47:06,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:47:06,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:47:06" (1/1) ... [2023-12-02 23:47:06,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bde940b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:06, skipping insertion in model container [2023-12-02 23:47:06,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:47:06" (1/1) ... [2023-12-02 23:47:06,194 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:47:06,309 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_3cef45cc-8f61-47d5-9b7f-78d001740af5/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c[712,725] [2023-12-02 23:47:06,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:47:06,335 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:47:06,348 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_3cef45cc-8f61-47d5-9b7f-78d001740af5/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c[712,725] [2023-12-02 23:47:06,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:47:06,368 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:47:06,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:06 WrapperNode [2023-12-02 23:47:06,368 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:47:06,369 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:47:06,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:47:06,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:47:06,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:06" (1/1) ... [2023-12-02 23:47:06,386 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:06" (1/1) ... [2023-12-02 23:47:06,404 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-12-02 23:47:06,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:47:06,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:47:06,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:47:06,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:47:06,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:06" (1/1) ... [2023-12-02 23:47:06,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:06" (1/1) ... [2023-12-02 23:47:06,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:06" (1/1) ... [2023-12-02 23:47:06,417 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:06" (1/1) ... [2023-12-02 23:47:06,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:06" (1/1) ... [2023-12-02 23:47:06,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:06" (1/1) ... [2023-12-02 23:47:06,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:06" (1/1) ... [2023-12-02 23:47:06,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:06" (1/1) ... [2023-12-02 23:47:06,428 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:47:06,429 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:47:06,429 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:47:06,430 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:47:06,430 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:06" (1/1) ... [2023-12-02 23:47:06,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:47:06,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:47:06,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:47:06,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:47:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:47:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:47:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:47:06,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:47:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 23:47:06,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 23:47:06,570 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:47:06,573 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:47:06,677 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:47:06,701 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:47:06,702 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:47:06,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:06 BoogieIcfgContainer [2023-12-02 23:47:06,703 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:47:06,704 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:47:06,705 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:47:06,715 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:47:06,715 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:06" (1/1) ... [2023-12-02 23:47:06,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:47:06,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:06,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-12-02 23:47:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-12-02 23:47:06,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:47:06,782 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:06,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:47:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:06,914 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 23:47:06,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:06,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-12-02 23:47:06,932 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-12-02 23:47:06,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:47:06,933 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:06,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:47:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:07,037 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 23:47:07,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:07,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2023-12-02 23:47:07,079 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-12-02 23:47:07,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:47:07,080 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:07,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:47:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:47:07,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 23:47:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:47:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:47:07,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 23:47:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:47:07,154 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-12-02 23:47:07,178 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated [2023-12-02 23:47:07,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:47:07 ImpRootNode [2023-12-02 23:47:07,183 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 23:47:07,184 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 23:47:07,184 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 23:47:07,185 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 23:47:07,185 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:06" (3/4) ... [2023-12-02 23:47:07,187 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 23:47:07,189 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 23:47:07,190 INFO L158 Benchmark]: Toolchain (without parser) took 1020.53ms. Allocated memory is still 148.9MB. Free memory was 109.9MB in the beginning and 65.9MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-12-02 23:47:07,191 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 148.9MB. Free memory was 117.6MB in the beginning and 117.5MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:47:07,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.68ms. Allocated memory is still 148.9MB. Free memory was 109.9MB in the beginning and 99.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:47:07,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.46ms. Allocated memory is still 148.9MB. Free memory was 99.3MB in the beginning and 97.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:47:07,193 INFO L158 Benchmark]: Boogie Preprocessor took 22.79ms. Allocated memory is still 148.9MB. Free memory was 97.8MB in the beginning and 96.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:47:07,194 INFO L158 Benchmark]: RCFGBuilder took 274.54ms. Allocated memory is still 148.9MB. Free memory was 96.6MB in the beginning and 86.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:47:07,194 INFO L158 Benchmark]: CodeCheck took 479.07ms. Allocated memory is still 148.9MB. Free memory was 86.5MB in the beginning and 66.3MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 23:47:07,195 INFO L158 Benchmark]: Witness Printer took 4.96ms. Allocated memory is still 148.9MB. Free memory was 66.3MB in the beginning and 65.9MB in the end (delta: 399.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:47:07,199 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, 14 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, 36 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 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, 22 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 84 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, 0 ConjunctsInSsa, 0 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 33, overapproximation of someBinaryArithmeticDOUBLEoperation at line 29. Possible FailurePath: [L24] int counter = 0; [L26] int r; [L27] double a, x; [L28] a = __VERIFIER_nondet_double() [L29] x = a / 2.0 [L30] r = 0 VAL [counter=0, r=0] [L32] EXPR counter++ VAL [counter=1, r=0] [L32] COND TRUE counter++<5 [L33] CALL __VERIFIER_assert((int)(r*r - a - r + 2*x) == 0) 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 0.17ms. Allocated memory is still 148.9MB. Free memory was 117.6MB in the beginning and 117.5MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.68ms. Allocated memory is still 148.9MB. Free memory was 109.9MB in the beginning and 99.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.46ms. Allocated memory is still 148.9MB. Free memory was 99.3MB in the beginning and 97.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.79ms. Allocated memory is still 148.9MB. Free memory was 97.8MB in the beginning and 96.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 274.54ms. Allocated memory is still 148.9MB. Free memory was 96.6MB in the beginning and 86.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 479.07ms. Allocated memory is still 148.9MB. Free memory was 86.5MB in the beginning and 66.3MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.96ms. Allocated memory is still 148.9MB. Free memory was 66.3MB in the beginning and 65.9MB in the end (delta: 399.4kB). There was no memory consumed. 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 23:47:07,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/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_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/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_3cef45cc-8f61-47d5-9b7f-78d001740af5/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 cb6ce2ff229d0487f93903d488050ba589e9ec8da79902739cdfa980edb7ba6d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:47:09,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:47:09,379 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-02 23:47:09,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:47:09,414 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:47:09,414 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:47:09,415 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:47:09,416 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:47:09,416 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:47:09,417 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:47:09,417 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:47:09,418 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:47:09,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:47:09,419 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:47:09,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:47:09,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:47:09,421 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 23:47:09,421 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 23:47:09,422 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 23:47:09,422 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:47:09,423 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:47:09,428 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:47:09,429 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:47:09,429 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:47:09,429 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:47:09,430 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:47:09,430 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 23:47:09,431 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:47:09,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:47:09,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:47:09,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:47:09,432 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:47:09,433 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 23:47:09,433 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:47:09,433 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:47:09,434 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 23:47:09,434 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 23:47:09,434 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_3cef45cc-8f61-47d5-9b7f-78d001740af5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb6ce2ff229d0487f93903d488050ba589e9ec8da79902739cdfa980edb7ba6d [2023-12-02 23:47:09,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:47:09,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:47:09,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:47:09,772 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:47:09,773 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:47:09,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c [2023-12-02 23:47:12,578 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:47:12,791 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:47:12,791 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c [2023-12-02 23:47:12,798 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/data/d799a5913/abcfd7a520824826bbfa8465eab3fd7e/FLAGffa418c57 [2023-12-02 23:47:12,812 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/data/d799a5913/abcfd7a520824826bbfa8465eab3fd7e [2023-12-02 23:47:12,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:47:12,815 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:47:12,817 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:47:12,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:47:12,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:47:12,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:47:12" (1/1) ... [2023-12-02 23:47:12,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748ddac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:12, skipping insertion in model container [2023-12-02 23:47:12,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:47:12" (1/1) ... [2023-12-02 23:47:12,846 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:47:13,011 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_3cef45cc-8f61-47d5-9b7f-78d001740af5/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c[712,725] [2023-12-02 23:47:13,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:47:13,043 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:47:13,056 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_3cef45cc-8f61-47d5-9b7f-78d001740af5/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c[712,725] [2023-12-02 23:47:13,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:47:13,078 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:47:13,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:13 WrapperNode [2023-12-02 23:47:13,079 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:47:13,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:47:13,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:47:13,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:47:13,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:13" (1/1) ... [2023-12-02 23:47:13,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:13" (1/1) ... [2023-12-02 23:47:13,118 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-12-02 23:47:13,118 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:47:13,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:47:13,120 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:47:13,120 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:47:13,129 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:13" (1/1) ... [2023-12-02 23:47:13,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:13" (1/1) ... [2023-12-02 23:47:13,133 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:13" (1/1) ... [2023-12-02 23:47:13,133 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:13" (1/1) ... [2023-12-02 23:47:13,141 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:13" (1/1) ... [2023-12-02 23:47:13,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:13" (1/1) ... [2023-12-02 23:47:13,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:13" (1/1) ... [2023-12-02 23:47:13,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:13" (1/1) ... [2023-12-02 23:47:13,152 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:47:13,153 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:47:13,153 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:47:13,153 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:47:13,154 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:13" (1/1) ... [2023-12-02 23:47:13,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:47:13,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:47:13,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:47:13,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:47:13,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:47:13,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 23:47:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:47:13,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:47:13,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 23:47:13,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 23:47:13,321 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:47:13,324 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:47:14,070 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:47:14,099 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:47:14,100 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:47:14,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:14 BoogieIcfgContainer [2023-12-02 23:47:14,102 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:47:14,103 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:47:14,103 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:47:14,113 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:47:14,114 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:14" (1/1) ... [2023-12-02 23:47:14,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:47:14,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:14,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-12-02 23:47:14,181 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-12-02 23:47:14,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:47:14,186 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:14,186 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:47:14,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:47:14,188 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:47:14,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 23:47:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:14,350 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:47:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:14,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:47:14,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:47:14,668 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 23:47:14,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 23:47:16,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:47:16,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:16,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-12-02 23:47:16,172 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-12-02 23:47:16,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:47:16,173 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:16,173 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:47:16,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:47:16,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:47:16,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 23:47:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:16,469 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:47:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:16,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:47:16,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:47:16,827 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 23:47:16,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-12-02 23:47:17,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:17,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2023-12-02 23:47:17,742 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-12-02 23:47:17,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:47:17,743 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:17,743 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:47:17,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:47:17,744 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:47:17,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cef45cc-8f61-47d5-9b7f-78d001740af5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 23:47:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:47:18,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 23:47:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat