./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bc19904b68b3c373243042dce59996dc4b666d99713ce0cfa66e5db1006d1674 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:37:30,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:37:30,739 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:37:30,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:37:30,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:37:30,790 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:37:30,793 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:37:30,793 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:37:30,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:37:30,795 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:37:30,795 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:37:30,795 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:37:30,796 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:37:30,796 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:37:30,796 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:37:30,799 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:37:30,802 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:37:30,802 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:37:30,803 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:37:30,803 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:37:30,803 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:37:30,807 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:37:30,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:37:30,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:37:30,809 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:37:30,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:37:30,809 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:37:30,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:37:30,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:37:30,810 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:37:30,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:37:30,814 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:37:30,814 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:37:30,814 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:37:30,815 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:37:30,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:37:30,815 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:37:30,816 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:37:30,816 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:37:30,816 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:37:30,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:37:30,818 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:37:30,818 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:37:30,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:37:30,819 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc19904b68b3c373243042dce59996dc4b666d99713ce0cfa66e5db1006d1674 [2024-11-02 12:37:31,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:37:31,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:37:31,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:37:31,130 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:37:31,131 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:37:31,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c Unable to find full path for "g++" [2024-11-02 12:37:33,165 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:37:33,421 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:37:33,422 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c [2024-11-02 12:37:33,431 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/data/013f525c2/8d0a6fca6d554120a0618fb35fcfd25d/FLAG9ba8e2a54 [2024-11-02 12:37:33,445 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/data/013f525c2/8d0a6fca6d554120a0618fb35fcfd25d [2024-11-02 12:37:33,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:37:33,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:37:33,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:37:33,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:37:33,459 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:37:33,460 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:37:33" (1/1) ... [2024-11-02 12:37:33,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46249e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:33, skipping insertion in model container [2024-11-02 12:37:33,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:37:33" (1/1) ... [2024-11-02 12:37:33,486 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:37:33,686 WARN L251 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_e2d5806c-4d31-4401-8abb-ea2fe03930c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c[1245,1258] [2024-11-02 12:37:33,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:37:33,743 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:37:33,753 WARN L251 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_e2d5806c-4d31-4401-8abb-ea2fe03930c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c[1245,1258] [2024-11-02 12:37:33,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:37:33,804 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:37:33,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:33 WrapperNode [2024-11-02 12:37:33,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:37:33,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:37:33,806 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:37:33,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:37:33,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:33" (1/1) ... [2024-11-02 12:37:33,823 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:33" (1/1) ... [2024-11-02 12:37:33,865 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 175 [2024-11-02 12:37:33,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:37:33,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:37:33,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:37:33,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:37:33,884 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:33" (1/1) ... [2024-11-02 12:37:33,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:33" (1/1) ... [2024-11-02 12:37:33,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:33" (1/1) ... [2024-11-02 12:37:33,894 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:33" (1/1) ... [2024-11-02 12:37:33,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:33" (1/1) ... [2024-11-02 12:37:33,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:33" (1/1) ... [2024-11-02 12:37:33,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:33" (1/1) ... [2024-11-02 12:37:33,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:33" (1/1) ... [2024-11-02 12:37:33,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:37:33,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:37:33,934 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:37:33,934 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:37:33,935 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:33" (1/1) ... [2024-11-02 12:37:33,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:37:33,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:33,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:37:33,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:37:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:37:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:37:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:37:34,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:37:34,116 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:37:34,119 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:37:34,606 INFO L? ?]: Removed 72 outVars from TransFormulas that were not future-live. [2024-11-02 12:37:34,606 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:37:34,871 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:37:34,871 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:37:34,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:34 BoogieIcfgContainer [2024-11-02 12:37:34,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:37:34,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:37:34,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:37:34,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:37:34,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:37:33" (1/3) ... [2024-11-02 12:37:34,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe1ff59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:37:34, skipping insertion in model container [2024-11-02 12:37:34,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:33" (2/3) ... [2024-11-02 12:37:34,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe1ff59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:37:34, skipping insertion in model container [2024-11-02 12:37:34,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:34" (3/3) ... [2024-11-02 12:37:34,886 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b07.c [2024-11-02 12:37:34,906 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:37:34,907 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:37:34,974 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:37:34,981 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@13459f74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:37:34,981 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:37:34,985 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:34,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 12:37:34,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:34,991 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 12:37:34,991 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:37:34,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:34,997 INFO L85 PathProgramCache]: Analyzing trace with hash 5695750, now seen corresponding path program 1 times [2024-11-02 12:37:35,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:35,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656440233] [2024-11-02 12:37:35,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:35,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:37:35,255 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:37:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:37:35,385 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:37:35,387 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:37:35,389 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:37:35,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:37:35,396 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:37:35,424 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:37:35,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:37:35 BoogieIcfgContainer [2024-11-02 12:37:35,429 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:37:35,431 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:37:35,432 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:37:35,432 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:37:35,432 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:34" (3/4) ... [2024-11-02 12:37:35,436 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:37:35,437 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:37:35,439 INFO L158 Benchmark]: Toolchain (without parser) took 1988.79ms. Allocated memory was 113.2MB in the beginning and 148.9MB in the end (delta: 35.7MB). Free memory was 81.2MB in the beginning and 62.6MB in the end (delta: 18.6MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2024-11-02 12:37:35,439 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:37:35,440 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.06ms. Allocated memory is still 113.2MB. Free memory was 80.9MB in the beginning and 66.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 12:37:35,441 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.39ms. Allocated memory is still 113.2MB. Free memory was 66.6MB in the beginning and 62.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:37:35,442 INFO L158 Benchmark]: Boogie Preprocessor took 63.71ms. Allocated memory is still 113.2MB. Free memory was 62.8MB in the beginning and 60.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:37:35,444 INFO L158 Benchmark]: RCFGBuilder took 937.93ms. Allocated memory was 113.2MB in the beginning and 148.9MB in the end (delta: 35.7MB). Free memory was 60.7MB in the beginning and 84.8MB in the end (delta: -24.1MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2024-11-02 12:37:35,444 INFO L158 Benchmark]: TraceAbstraction took 553.84ms. Allocated memory is still 148.9MB. Free memory was 84.8MB in the beginning and 62.6MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-02 12:37:35,445 INFO L158 Benchmark]: Witness Printer took 5.94ms. Allocated memory is still 148.9MB. Free memory is still 62.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:37:35,450 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.06ms. Allocated memory is still 113.2MB. Free memory was 80.9MB in the beginning and 66.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.39ms. Allocated memory is still 113.2MB. Free memory was 66.6MB in the beginning and 62.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.71ms. Allocated memory is still 113.2MB. Free memory was 62.8MB in the beginning and 60.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 937.93ms. Allocated memory was 113.2MB in the beginning and 148.9MB in the end (delta: 35.7MB). Free memory was 60.7MB in the beginning and 84.8MB in the end (delta: -24.1MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * TraceAbstraction took 553.84ms. Allocated memory is still 148.9MB. Free memory was 84.8MB in the beginning and 62.6MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 5.94ms. Allocated memory is still 148.9MB. Free memory is still 62.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: 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 bitwiseAnd at line 65. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 8); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (8 - 1); [L32] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 32); [L33] const SORT_8 msb_SORT_8 = (SORT_8)1 << (32 - 1); [L35] const SORT_22 mask_SORT_22 = (SORT_22)-1 >> (sizeof(SORT_22) * 8 - 4); [L36] const SORT_22 msb_SORT_22 = (SORT_22)1 << (4 - 1); [L38] const SORT_29 mask_SORT_29 = (SORT_29)-1 >> (sizeof(SORT_29) * 8 - 7); [L39] const SORT_29 msb_SORT_29 = (SORT_29)1 << (7 - 1); [L41] const SORT_4 var_5 = 0; [L42] const SORT_8 var_10 = 148; [L43] const SORT_1 var_14 = 1; [L44] const SORT_1 var_26 = 0; [L46] SORT_1 input_2; [L47] SORT_1 input_3; [L48] SORT_4 input_18; [L49] SORT_4 input_20; [L50] SORT_22 input_23; [L51] SORT_29 input_30; [L52] SORT_29 input_32; [L53] SORT_1 input_36; [L55] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 [L55] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L56] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L56] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L58] SORT_4 init_7_arg_1 = var_5; [L59] state_6 = init_7_arg_1 [L60] SORT_1 init_28_arg_1 = var_26; [L61] state_27 = init_28_arg_1 VAL [mask_SORT_1=1, mask_SORT_4=255, state_27=0, state_6=0, var_10=148, var_14=1, var_26=0] [L64] input_2 = __VERIFIER_nondet_uchar() [L65] EXPR input_2 & mask_SORT_1 [L65] input_2 = input_2 & mask_SORT_1 [L66] input_3 = __VERIFIER_nondet_uchar() [L67] input_18 = __VERIFIER_nondet_uchar() [L68] input_20 = __VERIFIER_nondet_uchar() [L69] input_23 = __VERIFIER_nondet_uchar() [L70] input_30 = __VERIFIER_nondet_uchar() [L71] input_32 = __VERIFIER_nondet_uchar() [L72] input_36 = __VERIFIER_nondet_uchar() [L75] SORT_4 var_9_arg_0 = state_6; [L76] EXPR var_9_arg_0 & mask_SORT_4 [L76] var_9_arg_0 = var_9_arg_0 & mask_SORT_4 [L77] SORT_8 var_9 = var_9_arg_0; [L78] SORT_8 var_11_arg_0 = var_9; [L79] SORT_8 var_11_arg_1 = var_10; [L80] SORT_1 var_11 = var_11_arg_0 != var_11_arg_1; [L81] SORT_1 var_15_arg_0 = var_11; [L82] SORT_1 var_15 = ~var_15_arg_0; [L83] SORT_1 var_16_arg_0 = var_14; [L84] SORT_1 var_16_arg_1 = var_15; [L85] EXPR var_16_arg_0 & var_16_arg_1 [L85] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L86] EXPR var_16 & mask_SORT_1 [L86] var_16 = var_16 & mask_SORT_1 [L87] SORT_1 bad_17_arg_0 = var_16; [L88] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-02 12:37:35,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bc19904b68b3c373243042dce59996dc4b666d99713ce0cfa66e5db1006d1674 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:37:38,033 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:37:38,130 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-02 12:37:38,138 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:37:38,138 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:37:38,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:37:38,188 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:37:38,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:37:38,189 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:37:38,189 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:37:38,190 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:37:38,191 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:37:38,191 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:37:38,193 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:37:38,193 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:37:38,194 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:37:38,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:37:38,195 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:37:38,199 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:37:38,199 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:37:38,200 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:37:38,200 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:37:38,201 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:37:38,201 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:37:38,201 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:37:38,201 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:37:38,202 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:37:38,202 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:37:38,202 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:37:38,202 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:37:38,203 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:37:38,203 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:37:38,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:37:38,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:37:38,206 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:37:38,206 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:37:38,207 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:37:38,207 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:37:38,207 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:37:38,208 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:37:38,208 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:37:38,209 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_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc19904b68b3c373243042dce59996dc4b666d99713ce0cfa66e5db1006d1674 [2024-11-02 12:37:38,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:37:38,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:37:38,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:37:38,696 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:37:38,700 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:37:38,702 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c Unable to find full path for "g++" [2024-11-02 12:37:40,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:37:41,270 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:37:41,271 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c [2024-11-02 12:37:41,281 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/data/66c3e82ee/6716ef986a7b4865bb7fd8d27cc99974/FLAG40b9fa38b [2024-11-02 12:37:41,591 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/data/66c3e82ee/6716ef986a7b4865bb7fd8d27cc99974 [2024-11-02 12:37:41,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:37:41,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:37:41,595 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:37:41,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:37:41,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:37:41,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:37:41" (1/1) ... [2024-11-02 12:37:41,602 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1861b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:41, skipping insertion in model container [2024-11-02 12:37:41,602 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:37:41" (1/1) ... [2024-11-02 12:37:41,638 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:37:41,875 WARN L251 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_e2d5806c-4d31-4401-8abb-ea2fe03930c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c[1245,1258] [2024-11-02 12:37:41,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:37:41,947 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:37:41,968 WARN L251 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_e2d5806c-4d31-4401-8abb-ea2fe03930c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c[1245,1258] [2024-11-02 12:37:42,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:37:42,040 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:37:42,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:42 WrapperNode [2024-11-02 12:37:42,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:37:42,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:37:42,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:37:42,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:37:42,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:42" (1/1) ... [2024-11-02 12:37:42,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:42" (1/1) ... [2024-11-02 12:37:42,110 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 119 [2024-11-02 12:37:42,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:37:42,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:37:42,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:37:42,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:37:42,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:42" (1/1) ... [2024-11-02 12:37:42,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:42" (1/1) ... [2024-11-02 12:37:42,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:42" (1/1) ... [2024-11-02 12:37:42,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:42" (1/1) ... [2024-11-02 12:37:42,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:42" (1/1) ... [2024-11-02 12:37:42,135 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:42" (1/1) ... [2024-11-02 12:37:42,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:42" (1/1) ... [2024-11-02 12:37:42,141 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:42" (1/1) ... [2024-11-02 12:37:42,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:37:42,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:37:42,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:37:42,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:37:42,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:42" (1/1) ... [2024-11-02 12:37:42,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:37:42,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:42,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:37:42,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:37:42,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:37:42,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:37:42,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:37:42,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:37:42,317 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:37:42,319 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:37:42,589 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-02 12:37:42,589 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:37:42,604 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:37:42,605 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:37:42,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:42 BoogieIcfgContainer [2024-11-02 12:37:42,607 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:37:42,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:37:42,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:37:42,615 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:37:42,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:37:41" (1/3) ... [2024-11-02 12:37:42,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc05d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:37:42, skipping insertion in model container [2024-11-02 12:37:42,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:42" (2/3) ... [2024-11-02 12:37:42,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc05d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:37:42, skipping insertion in model container [2024-11-02 12:37:42,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:42" (3/3) ... [2024-11-02 12:37:42,619 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b07.c [2024-11-02 12:37:42,640 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:37:42,640 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:37:42,714 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:37:42,722 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@64b9cf04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:37:42,722 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:37:42,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:42,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-02 12:37:42,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:42,746 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-02 12:37:42,747 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:37:42,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:42,755 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-02 12:37:42,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:37:42,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118282390] [2024-11-02 12:37:42,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:42,771 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 12:37:42,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:37:42,775 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-02 12:37:42,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-02 12:37:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:42,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-02 12:37:42,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:37:43,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:43,274 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:37:43,278 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:37:43,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118282390] [2024-11-02 12:37:43,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118282390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:43,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:37:43,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:37:43,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687193251] [2024-11-02 12:37:43,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:43,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:37:43,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:37:43,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:37:43,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:37:43,319 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:43,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:43,363 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2024-11-02 12:37:43,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:37:43,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-02 12:37:43,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:43,373 INFO L225 Difference]: With dead ends: 13 [2024-11-02 12:37:43,373 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 12:37:43,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:37:43,380 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:43,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:37:43,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 12:37:43,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 12:37:43,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:43,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 12:37:43,411 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2024-11-02 12:37:43,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:43,412 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 12:37:43,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:43,413 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 12:37:43,413 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 12:37:43,415 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:37:43,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-02 12:37:43,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 12:37:43,621 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:37:43,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 12:37:43,645 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:37:43,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:37:43 BoogieIcfgContainer [2024-11-02 12:37:43,660 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:37:43,661 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:37:43,661 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:37:43,662 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:37:43,662 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:42" (3/4) ... [2024-11-02 12:37:43,678 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-02 12:37:43,689 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-02 12:37:43,691 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-02 12:37:43,692 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-02 12:37:43,692 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-02 12:37:43,692 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-02 12:37:43,818 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 12:37:43,819 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/witness.yml [2024-11-02 12:37:43,819 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:37:43,820 INFO L158 Benchmark]: Toolchain (without parser) took 2226.19ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 53.3MB in the beginning and 66.8MB in the end (delta: -13.5MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2024-11-02 12:37:43,821 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 56.6MB. Free memory is still 33.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:37:43,821 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.85ms. Allocated memory is still 77.6MB. Free memory was 53.1MB in the beginning and 55.8MB in the end (delta: -2.7MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2024-11-02 12:37:43,822 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.21ms. Allocated memory is still 77.6MB. Free memory was 55.8MB in the beginning and 53.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:37:43,822 INFO L158 Benchmark]: Boogie Preprocessor took 35.98ms. Allocated memory is still 77.6MB. Free memory was 53.9MB in the beginning and 52.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:37:43,823 INFO L158 Benchmark]: RCFGBuilder took 458.84ms. Allocated memory is still 77.6MB. Free memory was 52.4MB in the beginning and 38.1MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 12:37:43,823 INFO L158 Benchmark]: TraceAbstraction took 1051.07ms. Allocated memory is still 77.6MB. Free memory was 37.4MB in the beginning and 32.3MB in the end (delta: 5.1MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2024-11-02 12:37:43,823 INFO L158 Benchmark]: Witness Printer took 158.28ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 32.2MB in the beginning and 66.8MB in the end (delta: -34.6MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2024-11-02 12:37:43,826 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 56.6MB. Free memory is still 33.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 445.85ms. Allocated memory is still 77.6MB. Free memory was 53.1MB in the beginning and 55.8MB in the end (delta: -2.7MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.21ms. Allocated memory is still 77.6MB. Free memory was 55.8MB in the beginning and 53.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.98ms. Allocated memory is still 77.6MB. Free memory was 53.9MB in the beginning and 52.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 458.84ms. Allocated memory is still 77.6MB. Free memory was 52.4MB in the beginning and 38.1MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1051.07ms. Allocated memory is still 77.6MB. Free memory was 37.4MB in the beginning and 32.3MB in the end (delta: 5.1MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Witness Printer took 158.28ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 32.2MB in the beginning and 66.8MB in the end (delta: -34.6MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 3 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (((0 == state_6) && (148 == var_10)) && (1 == mask_SORT_1)) RESULT: Ultimate proved your program to be correct! [2024-11-02 12:37:43,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d5806c-4d31-4401-8abb-ea2fe03930c3/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE