./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_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi --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 [2023-11-24 22:53:49,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:53:49,747 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:53:49,757 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:53:49,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:53:49,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:53:49,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:53:49,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:53:49,802 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:53:49,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:53:49,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:53:49,804 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:53:49,804 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:53:49,805 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:53:49,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:53:49,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:53:49,806 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:53:49,807 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:53:49,807 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:53:49,808 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:53:49,808 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:53:49,812 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:53:49,813 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:53:49,813 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:53:49,814 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:53:49,814 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:53:49,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:53:49,815 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:53:49,816 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:53:49,816 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:53:49,818 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:53:49,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:53:49,818 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:53:49,819 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_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb6ce2ff229d0487f93903d488050ba589e9ec8da79902739cdfa980edb7ba6d [2023-11-24 22:53:50,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:53:50,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:53:50,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:53:50,160 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:53:50,160 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:53:50,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c [2023-11-24 22:53:53,910 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:53:54,208 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:53:54,208 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c [2023-11-24 22:53:54,217 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/data/306c39dfe/7574b26a9ae54dec8db6b596dda5aa73/FLAG83be602e5 [2023-11-24 22:53:54,233 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/data/306c39dfe/7574b26a9ae54dec8db6b596dda5aa73 [2023-11-24 22:53:54,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:53:54,238 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:53:54,240 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:53:54,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:53:54,247 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:53:54,248 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:53:54" (1/1) ... [2023-11-24 22:53:54,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bcc4e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:54, skipping insertion in model container [2023-11-24 22:53:54,251 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:53:54" (1/1) ... [2023-11-24 22:53:54,278 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:53:54,467 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_ec5a930c-26a8-4a98-b0a3-264f3b7de575/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c[712,725] [2023-11-24 22:53:54,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:53:54,508 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:53:54,525 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_ec5a930c-26a8-4a98-b0a3-264f3b7de575/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c[712,725] [2023-11-24 22:53:54,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:53:54,552 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:53:54,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:54 WrapperNode [2023-11-24 22:53:54,553 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:53:54,555 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:53:54,555 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:53:54,555 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:53:54,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:54" (1/1) ... [2023-11-24 22:53:54,576 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:54" (1/1) ... [2023-11-24 22:53:54,596 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-11-24 22:53:54,597 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:53:54,598 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:53:54,598 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:53:54,598 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:53:54,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:54" (1/1) ... [2023-11-24 22:53:54,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:54" (1/1) ... [2023-11-24 22:53:54,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:54" (1/1) ... [2023-11-24 22:53:54,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:54" (1/1) ... [2023-11-24 22:53:54,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:54" (1/1) ... [2023-11-24 22:53:54,624 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:54" (1/1) ... [2023-11-24 22:53:54,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:54" (1/1) ... [2023-11-24 22:53:54,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:54" (1/1) ... [2023-11-24 22:53:54,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:53:54,630 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:53:54,630 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:53:54,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:53:54,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:53:54" (1/1) ... [2023-11-24 22:53:54,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:53:54,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:53:54,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:53:54,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:53:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:53:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:53:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:53:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:53:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 22:53:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 22:53:54,828 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:53:54,831 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:53:54,986 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:53:55,014 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:53:55,015 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:53:55,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:53:55 BoogieIcfgContainer [2023-11-24 22:53:55,017 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:53:55,018 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:53:55,018 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:53:55,029 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:53:55,030 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:53:55" (1/1) ... [2023-11-24 22:53:55,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:53:55,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:55,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-11-24 22:53:55,114 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-11-24 22:53:55,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:53:55,120 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:55,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:55,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:55,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:55,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-24 22:53:55,403 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-24 22:53:55,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:53:55,404 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:55,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:55,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:55,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:55,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2023-11-24 22:53:55,766 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-11-24 22:53:55,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:53:55,767 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:55,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:53:55,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:53:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:53:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:53:55,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:53:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:53:55,870 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-11-24 22:53:55,918 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated [2023-11-24 22:53:55,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:53:55 ImpRootNode [2023-11-24 22:53:55,927 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:53:55,929 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:53:55,929 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:53:55,930 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:53:55,931 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:53:55" (3/4) ... [2023-11-24 22:53:55,937 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:53:55,939 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:53:55,941 INFO L158 Benchmark]: Toolchain (without parser) took 1701.55ms. Allocated memory is still 127.9MB. Free memory was 91.0MB in the beginning and 46.9MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-24 22:53:55,942 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 127.9MB. Free memory is still 100.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:53:55,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.62ms. Allocated memory is still 127.9MB. Free memory was 90.5MB in the beginning and 80.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:53:55,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.47ms. Allocated memory is still 127.9MB. Free memory was 80.1MB in the beginning and 78.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:53:55,944 INFO L158 Benchmark]: Boogie Preprocessor took 31.27ms. Allocated memory is still 127.9MB. Free memory was 78.8MB in the beginning and 77.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:53:55,945 INFO L158 Benchmark]: RCFGBuilder took 386.95ms. Allocated memory is still 127.9MB. Free memory was 77.6MB in the beginning and 67.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:53:55,946 INFO L158 Benchmark]: CodeCheck took 909.03ms. Allocated memory is still 127.9MB. Free memory was 67.5MB in the beginning and 47.4MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-24 22:53:55,947 INFO L158 Benchmark]: Witness Printer took 10.03ms. Allocated memory is still 127.9MB. Free memory was 47.4MB in the beginning and 46.9MB in the end (delta: 425.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:53:55,952 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: 0.8s, 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, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.1s 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s 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 0.30ms. Allocated memory is still 127.9MB. Free memory is still 100.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.62ms. Allocated memory is still 127.9MB. Free memory was 90.5MB in the beginning and 80.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.47ms. Allocated memory is still 127.9MB. Free memory was 80.1MB in the beginning and 78.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.27ms. Allocated memory is still 127.9MB. Free memory was 78.8MB in the beginning and 77.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 386.95ms. Allocated memory is still 127.9MB. Free memory was 77.6MB in the beginning and 67.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 909.03ms. Allocated memory is still 127.9MB. Free memory was 67.5MB in the beginning and 47.4MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 10.03ms. Allocated memory is still 127.9MB. Free memory was 47.4MB in the beginning and 46.9MB in the end (delta: 425.0kB). 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 [2023-11-24 22:53:55,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/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_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi --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 [2023-11-24 22:53:59,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:53:59,804 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 22:53:59,876 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:53:59,878 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:53:59,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:53:59,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:53:59,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:53:59,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:53:59,890 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:53:59,891 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:53:59,891 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:53:59,892 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:53:59,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:53:59,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:53:59,896 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:53:59,896 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:53:59,897 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:53:59,897 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:53:59,899 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:53:59,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:53:59,900 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:53:59,901 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:53:59,901 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:53:59,902 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:53:59,903 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:53:59,903 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:53:59,904 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:53:59,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:53:59,905 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:53:59,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:53:59,907 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:53:59,908 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:53:59,908 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:53:59,909 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:53:59,909 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:53:59,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:53:59,909 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_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb6ce2ff229d0487f93903d488050ba589e9ec8da79902739cdfa980edb7ba6d [2023-11-24 22:54:00,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:54:00,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:54:00,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:54:00,578 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:54:00,579 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:54:00,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c [2023-11-24 22:54:04,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:54:04,859 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:54:04,859 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c [2023-11-24 22:54:04,869 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/data/c96af20f8/14be4f48893c4b3d80bedadad2cdb57c/FLAG2cdf3665f [2023-11-24 22:54:04,891 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/data/c96af20f8/14be4f48893c4b3d80bedadad2cdb57c [2023-11-24 22:54:04,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:54:04,906 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:54:04,911 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:54:04,912 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:54:04,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:54:04,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:54:04" (1/1) ... [2023-11-24 22:54:04,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@336ea8e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:04, skipping insertion in model container [2023-11-24 22:54:04,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:54:04" (1/1) ... [2023-11-24 22:54:04,949 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:54:05,118 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_ec5a930c-26a8-4a98-b0a3-264f3b7de575/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c[712,725] [2023-11-24 22:54:05,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:54:05,161 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:54:05,177 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_ec5a930c-26a8-4a98-b0a3-264f3b7de575/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound5.c[712,725] [2023-11-24 22:54:05,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:54:05,222 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:54:05,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:05 WrapperNode [2023-11-24 22:54:05,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:54:05,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:54:05,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:54:05,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:54:05,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:05" (1/1) ... [2023-11-24 22:54:05,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:05" (1/1) ... [2023-11-24 22:54:05,281 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-11-24 22:54:05,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:54:05,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:54:05,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:54:05,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:54:05,292 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:05" (1/1) ... [2023-11-24 22:54:05,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:05" (1/1) ... [2023-11-24 22:54:05,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:05" (1/1) ... [2023-11-24 22:54:05,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:05" (1/1) ... [2023-11-24 22:54:05,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:05" (1/1) ... [2023-11-24 22:54:05,332 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:05" (1/1) ... [2023-11-24 22:54:05,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:05" (1/1) ... [2023-11-24 22:54:05,346 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:05" (1/1) ... [2023-11-24 22:54:05,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:54:05,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:54:05,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:54:05,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:54:05,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:05" (1/1) ... [2023-11-24 22:54:05,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:54:05,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:54:05,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:54:05,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:54:05,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:54:05,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:54:05,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:54:05,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:54:05,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 22:54:05,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 22:54:05,586 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:54:05,589 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:54:06,314 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:54:06,346 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:54:06,347 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:54:06,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:54:06 BoogieIcfgContainer [2023-11-24 22:54:06,349 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:54:06,350 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:54:06,350 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:54:06,361 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:54:06,362 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:54:06" (1/1) ... [2023-11-24 22:54:06,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:54:06,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:06,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-11-24 22:54:06,434 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-11-24 22:54:06,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:54:06,439 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:06,440 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:54:06,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:54:06,443 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:54:06,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:54:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:06,600 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:54:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:06,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:54:06,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:06,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:54:06,991 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:54:06,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:54:08,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 22:54:08,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:08,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-24 22:54:08,751 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-24 22:54:08,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:54:08,752 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:08,752 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:54:08,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:54:08,754 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:54:08,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 22:54:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:09,113 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:54:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:09,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:54:09,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:09,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:54:09,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 22:54:10,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:10,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2023-11-24 22:54:10,680 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-11-24 22:54:10,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:54:10,680 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:10,681 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:54:10,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:54:10,683 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:54:10,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a930c-26a8-4a98-b0a3-264f3b7de575/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 22:54:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:54:11,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:54:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat