./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop4-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/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_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop4-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/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 64bit --witnessprinter.graph.data.programhash 2f0107585bc95fe85ccc61e4bc167a4f923d0c961f450c43157e4d3f65cc9990 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:17:17,539 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:17:17,604 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-02 23:17:17,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:17:17,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:17:17,632 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:17:17,633 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:17:17,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:17:17,634 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:17:17,635 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:17:17,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:17:17,636 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:17:17,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:17:17,637 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:17:17,638 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:17:17,638 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:17:17,639 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:17:17,639 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:17:17,640 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:17:17,640 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:17:17,641 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:17:17,642 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:17:17,642 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:17:17,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:17:17,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:17:17,644 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:17:17,644 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:17:17,656 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:17:17,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:17:17,657 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:17:17,657 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_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f0107585bc95fe85ccc61e4bc167a4f923d0c961f450c43157e4d3f65cc9990 [2023-12-02 23:17:17,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:17:17,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:17:17,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:17:17,919 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:17:17,919 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:17:17,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop4-func-interl.c [2023-12-02 23:17:20,606 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:17:20,959 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:17:20,959 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop4-func-interl.c [2023-12-02 23:17:20,981 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/data/7dea17c74/756aa752421641af82c3d2a12da83ce0/FLAG76e2af890 [2023-12-02 23:17:20,994 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/data/7dea17c74/756aa752421641af82c3d2a12da83ce0 [2023-12-02 23:17:20,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:17:20,998 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:17:20,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:17:20,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:17:21,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:17:21,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:17:20" (1/1) ... [2023-12-02 23:17:21,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e5264e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:17:21, skipping insertion in model container [2023-12-02 23:17:21,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:17:20" (1/1) ... [2023-12-02 23:17:21,106 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:17:21,303 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_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop4-func-interl.c[1174,1187] [2023-12-02 23:17:22,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:17:22,045 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:17:22,058 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_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop4-func-interl.c[1174,1187] [2023-12-02 23:17:22,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:17:22,503 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:17:22,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:17:22 WrapperNode [2023-12-02 23:17:22,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:17:22,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:17:22,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:17:22,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:17:22,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:17:22" (1/1) ... [2023-12-02 23:17:22,707 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:17:22" (1/1) ... [2023-12-02 23:17:24,284 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24253 [2023-12-02 23:17:24,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:17:24,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:17:24,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:17:24,285 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:17:24,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:17:22" (1/1) ... [2023-12-02 23:17:24,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:17:22" (1/1) ... [2023-12-02 23:17:24,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:17:22" (1/1) ... [2023-12-02 23:17:24,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:17:22" (1/1) ... [2023-12-02 23:17:25,159 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:17:22" (1/1) ... [2023-12-02 23:17:25,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:17:22" (1/1) ... [2023-12-02 23:17:25,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:17:22" (1/1) ... [2023-12-02 23:17:25,486 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:17:22" (1/1) ... [2023-12-02 23:17:25,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:17:25,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:17:25,804 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:17:25,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:17:25,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:17:22" (1/1) ... [2023-12-02 23:17:25,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:17:25,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:17:25,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:17:25,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:17:25,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:17:25,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:17:25,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:17:25,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:17:26,816 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:17:26,818 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:17:40,296 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:18:25,108 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:18:25,109 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:18:25,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:18:25 BoogieIcfgContainer [2023-12-02 23:18:25,111 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:18:25,112 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:18:25,112 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:18:25,120 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:18:25,121 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:18:25" (1/1) ... [2023-12-02 23:18:25,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:18:25,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:18:25,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 23:18:25,176 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 23:18:25,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 23:18:25,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:18:25,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:18:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:18:30,911 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 23:18:42,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 23:18:52,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 23:18:55,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:18:55,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:18:55,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-02 23:18:55,996 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-02 23:18:55,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:18:55,996 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:18:55,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:19:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 23:19:09,578 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 23:19:09,581 INFO L158 Benchmark]: Toolchain (without parser) took 108583.18ms. Allocated memory was 172.0MB in the beginning and 7.4GB in the end (delta: 7.2GB). Free memory was 135.7MB in the beginning and 6.0GB in the end (delta: -5.9GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2023-12-02 23:19:09,582 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory was 97.6MB in the beginning and 97.5MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:19:09,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1505.18ms. Allocated memory was 172.0MB in the beginning and 251.7MB in the end (delta: 79.7MB). Free memory was 134.9MB in the beginning and 102.0MB in the end (delta: 32.9MB). Peak memory consumption was 122.8MB. Max. memory is 16.1GB. [2023-12-02 23:19:09,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 1779.44ms. Allocated memory was 251.7MB in the beginning and 979.4MB in the end (delta: 727.7MB). Free memory was 102.0MB in the beginning and 557.1MB in the end (delta: -455.1MB). Peak memory consumption was 284.2MB. Max. memory is 16.1GB. [2023-12-02 23:19:09,584 INFO L158 Benchmark]: Boogie Preprocessor took 1518.58ms. Allocated memory is still 979.4MB. Free memory was 557.1MB in the beginning and 443.9MB in the end (delta: 113.2MB). Peak memory consumption was 215.0MB. Max. memory is 16.1GB. [2023-12-02 23:19:09,585 INFO L158 Benchmark]: RCFGBuilder took 59306.60ms. Allocated memory was 979.4MB in the beginning and 7.4GB in the end (delta: 6.4GB). Free memory was 443.9MB in the beginning and 5.6GB in the end (delta: -5.2GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. [2023-12-02 23:19:09,585 INFO L158 Benchmark]: CodeCheck took 44468.37ms. Allocated memory is still 7.4GB. Free memory was 5.6GB in the beginning and 6.0GB in the end (delta: -408.9MB). Peak memory consumption was 274.7MB. Max. memory is 16.1GB. [2023-12-02 23:19:09,590 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory was 97.6MB in the beginning and 97.5MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1505.18ms. Allocated memory was 172.0MB in the beginning and 251.7MB in the end (delta: 79.7MB). Free memory was 134.9MB in the beginning and 102.0MB in the end (delta: 32.9MB). Peak memory consumption was 122.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1779.44ms. Allocated memory was 251.7MB in the beginning and 979.4MB in the end (delta: 727.7MB). Free memory was 102.0MB in the beginning and 557.1MB in the end (delta: -455.1MB). Peak memory consumption was 284.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1518.58ms. Allocated memory is still 979.4MB. Free memory was 557.1MB in the beginning and 443.9MB in the end (delta: 113.2MB). Peak memory consumption was 215.0MB. Max. memory is 16.1GB. * RCFGBuilder took 59306.60ms. Allocated memory was 979.4MB in the beginning and 7.4GB in the end (delta: 6.4GB). Free memory was 443.9MB in the beginning and 5.6GB in the end (delta: -5.2GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. * CodeCheck took 44468.37ms. Allocated memory is still 7.4GB. Free memory was 5.6GB in the beginning and 6.0GB in the end (delta: -408.9MB). Peak memory consumption was 274.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 23:19:09,802 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-02 23:19:09,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/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_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop4-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/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 64bit --witnessprinter.graph.data.programhash 2f0107585bc95fe85ccc61e4bc167a4f923d0c961f450c43157e4d3f65cc9990 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:19:11,834 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:19:11,899 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-02 23:19:11,927 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:19:11,928 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:19:11,928 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:19:11,929 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:19:11,929 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:19:11,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:19:11,931 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:19:11,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:19:11,932 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:19:11,933 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:19:11,933 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:19:11,934 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 23:19:11,935 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 23:19:11,935 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 23:19:11,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:19:11,936 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:19:11,937 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:19:11,937 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:19:11,939 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:19:11,939 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:11,939 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 23:19:11,940 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:19:11,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:19:11,940 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:19:11,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:19:11,941 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:19:11,941 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 23:19:11,942 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:11,942 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:19:11,942 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 23:19:11,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 23:19:11,943 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_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f0107585bc95fe85ccc61e4bc167a4f923d0c961f450c43157e4d3f65cc9990 [2023-12-02 23:19:12,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:19:12,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:19:12,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:19:12,273 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:19:12,273 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:19:12,275 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop4-func-interl.c [2023-12-02 23:19:15,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:19:15,486 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:19:15,486 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop4-func-interl.c [2023-12-02 23:19:15,524 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/data/637405e13/bafb9b2bf1284048bead590e34a6ef98/FLAG508b3fbe5 [2023-12-02 23:19:15,540 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/data/637405e13/bafb9b2bf1284048bead590e34a6ef98 [2023-12-02 23:19:15,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:19:15,544 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:19:15,545 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:19:15,545 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:19:15,550 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:19:15,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:19:15" (1/1) ... [2023-12-02 23:19:15,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664098a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:15, skipping insertion in model container [2023-12-02 23:19:15,553 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:19:15" (1/1) ... [2023-12-02 23:19:15,736 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:19:15,957 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_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop4-func-interl.c[1174,1187] [2023-12-02 23:19:16,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:19:16,426 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:19:16,436 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_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop4-func-interl.c[1174,1187] [2023-12-02 23:19:16,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:19:16,767 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:19:16,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:16 WrapperNode [2023-12-02 23:19:16,768 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:19:16,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:19:16,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:19:16,769 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:19:16,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:16" (1/1) ... [2023-12-02 23:19:16,842 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:16" (1/1) ... [2023-12-02 23:19:17,084 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5580 [2023-12-02 23:19:17,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:19:17,090 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:19:17,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:19:17,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:19:17,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:16" (1/1) ... [2023-12-02 23:19:17,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:16" (1/1) ... [2023-12-02 23:19:17,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:16" (1/1) ... [2023-12-02 23:19:17,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:16" (1/1) ... [2023-12-02 23:19:17,314 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:16" (1/1) ... [2023-12-02 23:19:17,327 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:16" (1/1) ... [2023-12-02 23:19:17,363 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:16" (1/1) ... [2023-12-02 23:19:17,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:16" (1/1) ... [2023-12-02 23:19:17,422 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:19:17,423 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:19:17,424 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:19:17,424 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:19:17,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:16" (1/1) ... [2023-12-02 23:19:17,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:19:17,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:19:17,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:19:17,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:19:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:19:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 23:19:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:19:17,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:19:18,251 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:19:18,254 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:19:38,276 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:19:38,580 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:19:38,581 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:19:38,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:19:38 BoogieIcfgContainer [2023-12-02 23:19:38,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:19:38,583 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:19:38,583 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:19:38,592 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:19:38,593 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:19:38" (1/1) ... [2023-12-02 23:19:38,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:19:38,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:38,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 23:19:38,653 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 23:19:38,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 23:19:38,655 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:38,656 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:38,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:19:38,657 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:19:38,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 23:19:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:40,003 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:19:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:40,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 23:19:40,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:19:40,617 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 23:19:40,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 23:19:51,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:19:55,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.78s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:19:55,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:55,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-02 23:19:55,505 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-02 23:19:55,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:19:55,506 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:55,506 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:55,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:19:55,507 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:19:55,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 23:20:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:00,996 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:20:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:02,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 4619 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-02 23:20:02,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:20:06,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:20:06,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 23:20:17,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:20:28,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:20:39,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.69s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:20:58,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:21:08,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:21:10,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:21:10,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-02 23:21:10,435 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-02 23:21:10,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:21:10,437 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:21:10,437 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:21:10,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:21:10,439 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:21:10,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 23:21:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:20,083 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:21:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:23,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 8935 conjuncts, 529 conjunts are in the unsatisfiable core [2023-12-02 23:21:23,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:21:41,963 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:21:42,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 23:21:50,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:22:02,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:22:23,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.35s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:22:38,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:22:43,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.31s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:22:47,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:23:22,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.65s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:23:24,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:23:36,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:23:47,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:23:49,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:23:49,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:23:49,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 18 states and 41 transitions. [2023-12-02 23:23:49,723 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 41 transitions. [2023-12-02 23:23:49,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:23:49,723 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:23:49,724 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:23:49,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:23:49,725 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:23:49,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 23:23:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:59,629 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:24:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:24:02,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 8935 conjuncts, 529 conjunts are in the unsatisfiable core [2023-12-02 23:24:03,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:24:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:24:16,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 23:24:44,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.02s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:25:06,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:25:11,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:25:21,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:25:31,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:25:34,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:25:39,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.90s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:25:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:25:40,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 19 states and 44 transitions. [2023-12-02 23:25:40,447 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 44 transitions. [2023-12-02 23:25:40,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 23:25:40,448 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:25:40,448 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:25:40,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:25:40,449 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:25:40,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 23:25:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:55,602 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:26:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:00,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 13251 conjuncts, 886 conjunts are in the unsatisfiable core [2023-12-02 23:26:00,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:27:15,800 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:27:15,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc81b4c-5c36-4e4f-8bce-287f9886b0d0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 23:27:33,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.99s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:27:59,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:28:56,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.97s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:29:19,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.97s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:29:30,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:29:41,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:29:47,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.63s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]