./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 17dd292be8aa4abbbe4de89584f0c5074f5ac581e3f3cd5182b9a161c934b97e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:37:14,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:37:14,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:37:14,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:37:14,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:37:14,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:37:14,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:37:14,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:37:14,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:37:14,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:37:14,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:37:14,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:37:14,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:37:14,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:37:14,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:37:14,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:37:14,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:37:14,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:37:14,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:37:14,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:37:14,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:37:14,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:37:14,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:37:14,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:37:14,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:37:14,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:37:14,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:37:14,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:37:14,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:37:14,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:37:14,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:37:14,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:37:14,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:37:14,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:37:14,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:37:14,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:37:14,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:37:14,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:37:14,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:37:14,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:37:14,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:37:14,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:37:14,462 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:37:14,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:37:14,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:37:14,465 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:37:14,466 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:37:14,466 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:37:14,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:37:14,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:37:14,468 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:37:14,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:37:14,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:37:14,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:37:14,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:37:14,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:37:14,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:37:14,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:37:14,473 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:37:14,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:37:14,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:37:14,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:37:14,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:37:14,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:37:14,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:37:14,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:37:14,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:37:14,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:37:14,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:37:14,477 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:37:14,477 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:37:14,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:37:14,478 INFO L138 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_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17dd292be8aa4abbbe4de89584f0c5074f5ac581e3f3cd5182b9a161c934b97e [2022-11-02 20:37:14,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:37:14,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:37:14,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:37:14,955 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:37:14,957 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:37:14,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-func-interl.c [2022-11-02 20:37:15,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/data/40dd8942c/bfb8479d8d1748839487fd7db39fc169/FLAG4027c01a7 [2022-11-02 20:37:15,921 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:37:15,921 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-func-interl.c [2022-11-02 20:37:15,951 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/data/40dd8942c/bfb8479d8d1748839487fd7db39fc169/FLAG4027c01a7 [2022-11-02 20:37:16,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/data/40dd8942c/bfb8479d8d1748839487fd7db39fc169 [2022-11-02 20:37:16,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:37:16,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:37:16,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:37:16,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:37:16,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:37:16,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:37:16" (1/1) ... [2022-11-02 20:37:16,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1428e5aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:16, skipping insertion in model container [2022-11-02 20:37:16,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:37:16" (1/1) ... [2022-11-02 20:37:16,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:37:16,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:37:16,536 WARN L230 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_fedb8ae8-057d-4a18-bdc6-e16449f68358/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-func-interl.c[1014,1027] [2022-11-02 20:37:17,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:37:17,303 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:37:17,320 WARN L230 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_fedb8ae8-057d-4a18-bdc6-e16449f68358/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-func-interl.c[1014,1027] [2022-11-02 20:37:17,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:37:17,670 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:37:17,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:17 WrapperNode [2022-11-02 20:37:17,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:37:17,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:37:17,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:37:17,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:37:17,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:17" (1/1) ... [2022-11-02 20:37:17,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:17" (1/1) ... [2022-11-02 20:37:18,353 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3761 [2022-11-02 20:37:18,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:37:18,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:37:18,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:37:18,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:37:18,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:17" (1/1) ... [2022-11-02 20:37:18,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:17" (1/1) ... [2022-11-02 20:37:18,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:17" (1/1) ... [2022-11-02 20:37:18,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:17" (1/1) ... [2022-11-02 20:37:18,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:17" (1/1) ... [2022-11-02 20:37:18,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:17" (1/1) ... [2022-11-02 20:37:18,930 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:17" (1/1) ... [2022-11-02 20:37:18,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:17" (1/1) ... [2022-11-02 20:37:19,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:37:19,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:37:19,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:37:19,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:37:19,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:17" (1/1) ... [2022-11-02 20:37:19,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:37:19,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:37:19,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:37:19,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:37:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:37:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:37:20,389 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:37:20,392 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:41:24,244 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:41:24,256 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:41:24,256 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:41:24,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:41:24 BoogieIcfgContainer [2022-11-02 20:41:24,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:41:24,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:41:24,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:41:24,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:41:24,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:37:16" (1/3) ... [2022-11-02 20:41:24,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9b417c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:41:24, skipping insertion in model container [2022-11-02 20:41:24,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:17" (2/3) ... [2022-11-02 20:41:24,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9b417c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:41:24, skipping insertion in model container [2022-11-02 20:41:24,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:41:24" (3/3) ... [2022-11-02 20:41:24,272 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.1.prop1-func-interl.c [2022-11-02 20:41:24,296 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:41:24,296 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:41:24,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:41:24,387 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@722e2990, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:41:24,388 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:41:24,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 235 states, 233 states have (on average 1.497854077253219) internal successors, (349), 234 states have internal predecessors, (349), 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) [2022-11-02 20:41:24,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:41:24,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:24,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:41:24,403 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:41:24,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:24,410 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-02 20:41:24,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:24,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546197890] [2022-11-02 20:41:24,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:24,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:26,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:26,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:26,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546197890] [2022-11-02 20:41:26,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546197890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:26,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:26,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:41:26,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959018393] [2022-11-02 20:41:26,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:26,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:41:26,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:26,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:41:26,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:41:27,005 INFO L87 Difference]: Start difference. First operand has 235 states, 233 states have (on average 1.497854077253219) internal successors, (349), 234 states have internal predecessors, (349), 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) [2022-11-02 20:41:29,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:41:31,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-02 20:41:31,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:31,772 INFO L93 Difference]: Finished difference Result 663 states and 993 transitions. [2022-11-02 20:41:31,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:41:31,775 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 [2022-11-02 20:41:31,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:31,797 INFO L225 Difference]: With dead ends: 663 [2022-11-02 20:41:31,804 INFO L226 Difference]: Without dead ends: 430 [2022-11-02 20:41:31,810 INFO L412 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 [2022-11-02 20:41:31,817 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 885 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:31,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 724 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 4.6s Time] [2022-11-02 20:41:31,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-11-02 20:41:31,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 233. [2022-11-02 20:41:31,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 232 states have (on average 1.4870689655172413) internal successors, (345), 232 states have internal predecessors, (345), 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) [2022-11-02 20:41:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 345 transitions. [2022-11-02 20:41:31,881 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 345 transitions. Word has length 5 [2022-11-02 20:41:31,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:31,881 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 345 transitions. [2022-11-02 20:41:31,882 INFO L496 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) [2022-11-02 20:41:31,882 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 345 transitions. [2022-11-02 20:41:31,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-02 20:41:31,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:31,901 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:31,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:41:31,902 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:41:31,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:31,905 INFO L85 PathProgramCache]: Analyzing trace with hash -254616769, now seen corresponding path program 1 times [2022-11-02 20:41:31,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:31,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039137944] [2022-11-02 20:41:31,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:31,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:32,461 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:41:32,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1694319900] [2022-11-02 20:41:32,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:32,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:41:32,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:41:32,466 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:41:32,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedb8ae8-057d-4a18-bdc6-e16449f68358/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:41:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:36,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 6205 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:41:36,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:41:36,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:36,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:41:36,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:36,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039137944] [2022-11-02 20:41:36,895 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:41:36,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694319900] [2022-11-02 20:41:36,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694319900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:36,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:36,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:41:36,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912500748] [2022-11-02 20:41:36,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:36,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:41:36,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:36,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:41:36,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:41:36,901 INFO L87 Difference]: Start difference. First operand 233 states and 345 transitions. Second operand has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 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)