./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p06.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8 --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 71db3ddd8c41e0e55165084822cc484764b1b1fea6b2ce41ef188424a7fe2ced --- 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-e04fb08 [2022-11-16 11:24:51,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:24:51,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:24:51,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:24:51,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:24:51,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:24:51,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:24:51,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:24:51,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:24:51,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:24:51,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:24:51,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:24:51,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:24:51,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:24:51,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:24:51,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:24:51,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:24:51,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:24:51,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:24:51,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:24:51,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:24:51,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:24:51,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:24:51,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:24:51,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:24:51,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:24:51,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:24:51,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:24:51,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:24:51,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:24:51,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:24:51,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:24:51,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:24:51,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:24:51,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:24:51,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:24:51,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:24:51,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:24:51,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:24:51,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:24:51,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:24:51,461 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:24:51,507 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:24:51,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:24:51,509 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:24:51,509 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:24:51,510 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:24:51,511 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:24:51,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:24:51,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:24:51,512 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:24:51,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:24:51,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:24:51,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:24:51,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:24:51,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:24:51,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:24:51,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:24:51,515 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:24:51,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:24:51,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:24:51,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:24:51,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:24:51,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:24:51,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:24:51,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:24:51,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:24:51,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:24:51,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:24:51,518 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:24:51,518 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:24:51,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:24:51,518 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_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71db3ddd8c41e0e55165084822cc484764b1b1fea6b2ce41ef188424a7fe2ced [2022-11-16 11:24:51,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:24:51,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:24:51,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:24:51,934 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:24:51,935 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:24:51,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p06.c [2022-11-16 11:24:52,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/data/c4d3788e6/baa6eac406b24dc183201054a89de9b8/FLAG1ccdb98d1 [2022-11-16 11:24:52,796 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:24:52,796 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p06.c [2022-11-16 11:24:52,807 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/data/c4d3788e6/baa6eac406b24dc183201054a89de9b8/FLAG1ccdb98d1 [2022-11-16 11:24:52,822 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/data/c4d3788e6/baa6eac406b24dc183201054a89de9b8 [2022-11-16 11:24:52,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:24:52,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:24:52,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:24:52,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:24:52,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:24:52,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:24:52" (1/1) ... [2022-11-16 11:24:52,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@422fd2fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:52, skipping insertion in model container [2022-11-16 11:24:52,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:24:52" (1/1) ... [2022-11-16 11:24:52,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:24:52,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:24:53,106 WARN L229 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_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p06.c[1107,1120] [2022-11-16 11:24:53,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:24:53,289 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:24:53,309 WARN L229 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_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p06.c[1107,1120] [2022-11-16 11:24:53,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:24:53,474 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:24:53,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:53 WrapperNode [2022-11-16 11:24:53,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:24:53,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:24:53,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:24:53,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:24:53,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:53" (1/1) ... [2022-11-16 11:24:53,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:53" (1/1) ... [2022-11-16 11:24:53,569 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 555 [2022-11-16 11:24:53,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:24:53,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:24:53,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:24:53,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:24:53,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:53" (1/1) ... [2022-11-16 11:24:53,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:53" (1/1) ... [2022-11-16 11:24:53,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:53" (1/1) ... [2022-11-16 11:24:53,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:53" (1/1) ... [2022-11-16 11:24:53,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:53" (1/1) ... [2022-11-16 11:24:53,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:53" (1/1) ... [2022-11-16 11:24:53,643 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:53" (1/1) ... [2022-11-16 11:24:53,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:53" (1/1) ... [2022-11-16 11:24:53,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:24:53,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:24:53,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:24:53,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:24:53,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:53" (1/1) ... [2022-11-16 11:24:53,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:24:53,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:24:53,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:24:53,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:24:53,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:24:53,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:24:54,031 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:24:54,034 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:24:54,804 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:24:54,813 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:24:54,813 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:24:54,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:24:54 BoogieIcfgContainer [2022-11-16 11:24:54,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:24:54,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:24:54,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:24:54,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:24:54,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:24:52" (1/3) ... [2022-11-16 11:24:54,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d56b36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:24:54, skipping insertion in model container [2022-11-16 11:24:54,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:53" (2/3) ... [2022-11-16 11:24:54,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d56b36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:24:54, skipping insertion in model container [2022-11-16 11:24:54,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:24:54" (3/3) ... [2022-11-16 11:24:54,828 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p06.c [2022-11-16 11:24:54,881 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:24:54,882 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:24:54,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:24:54,982 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;@630772a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:24:54,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:24:54,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 60 states have (on average 1.6333333333333333) internal successors, (98), 61 states have internal predecessors, (98), 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) [2022-11-16 11:24:54,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 11:24:54,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:54,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:54,996 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:24:55,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:55,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1178400828, now seen corresponding path program 1 times [2022-11-16 11:24:55,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:55,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894820531] [2022-11-16 11:24:55,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:55,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:55,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:55,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:55,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894820531] [2022-11-16 11:24:55,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894820531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:55,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:55,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:24:55,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144001621] [2022-11-16 11:24:55,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:55,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:24:55,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:55,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:24:55,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:24:55,689 INFO L87 Difference]: Start difference. First operand has 62 states, 60 states have (on average 1.6333333333333333) internal successors, (98), 61 states have internal predecessors, (98), 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 2.75) internal successors, (11), 4 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) [2022-11-16 11:24:55,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:55,800 INFO L93 Difference]: Finished difference Result 181 states and 297 transitions. [2022-11-16 11:24:55,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:24:55,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) Word has length 11 [2022-11-16 11:24:55,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:55,815 INFO L225 Difference]: With dead ends: 181 [2022-11-16 11:24:55,815 INFO L226 Difference]: Without dead ends: 121 [2022-11-16 11:24:55,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:24:55,823 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 252 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:55,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 218 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:24:55,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-16 11:24:55,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 60. [2022-11-16 11:24:55,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.5932203389830508) internal successors, (94), 59 states have internal predecessors, (94), 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) [2022-11-16 11:24:55,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 94 transitions. [2022-11-16 11:24:55,886 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 94 transitions. Word has length 11 [2022-11-16 11:24:55,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:55,887 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 94 transitions. [2022-11-16 11:24:55,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-11-16 11:24:55,888 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 94 transitions. [2022-11-16 11:24:55,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 11:24:55,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:55,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:55,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:24:55,891 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:24:55,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:55,892 INFO L85 PathProgramCache]: Analyzing trace with hash 2126004980, now seen corresponding path program 1 times [2022-11-16 11:24:55,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:55,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262100968] [2022-11-16 11:24:55,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:55,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:24:55,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:24:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:24:56,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:24:56,107 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:24:56,109 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:24:56,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:24:56,135 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 11:24:56,140 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:24:56,218 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 11:24:56,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:24:56 BoogieIcfgContainer [2022-11-16 11:24:56,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:24:56,251 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:24:56,251 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:24:56,252 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:24:56,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:24:54" (3/4) ... [2022-11-16 11:24:56,257 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:24:56,257 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:24:56,259 INFO L158 Benchmark]: Toolchain (without parser) took 3431.01ms. Allocated memory was 138.4MB in the beginning and 197.1MB in the end (delta: 58.7MB). Free memory was 103.4MB in the beginning and 165.0MB in the end (delta: -61.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:24:56,260 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 86.0MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:24:56,263 INFO L158 Benchmark]: CACSL2BoogieTranslator took 644.09ms. Allocated memory is still 138.4MB. Free memory was 103.1MB in the beginning and 104.2MB in the end (delta: -1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:24:56,268 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.61ms. Allocated memory is still 138.4MB. Free memory was 104.2MB in the beginning and 99.3MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:24:56,268 INFO L158 Benchmark]: Boogie Preprocessor took 92.56ms. Allocated memory is still 138.4MB. Free memory was 99.3MB in the beginning and 96.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:24:56,269 INFO L158 Benchmark]: RCFGBuilder took 1153.03ms. Allocated memory is still 138.4MB. Free memory was 96.4MB in the beginning and 62.4MB in the end (delta: 34.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-16 11:24:56,269 INFO L158 Benchmark]: TraceAbstraction took 1431.63ms. Allocated memory was 138.4MB in the beginning and 197.1MB in the end (delta: 58.7MB). Free memory was 62.0MB in the beginning and 165.0MB in the end (delta: -103.0MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2022-11-16 11:24:56,270 INFO L158 Benchmark]: Witness Printer took 7.05ms. Allocated memory is still 197.1MB. Free memory is still 165.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:24:56,273 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 86.0MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 644.09ms. Allocated memory is still 138.4MB. Free memory was 103.1MB in the beginning and 104.2MB in the end (delta: -1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.61ms. Allocated memory is still 138.4MB. Free memory was 104.2MB in the beginning and 99.3MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.56ms. Allocated memory is still 138.4MB. Free memory was 99.3MB in the beginning and 96.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1153.03ms. Allocated memory is still 138.4MB. Free memory was 96.4MB in the beginning and 62.4MB in the end (delta: 34.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1431.63ms. Allocated memory was 138.4MB in the beginning and 197.1MB in the end (delta: 58.7MB). Free memory was 62.0MB in the beginning and 165.0MB in the end (delta: -103.0MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Witness Printer took 7.05ms. Allocated memory is still 197.1MB. Free memory is still 165.0MB. 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: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 167, overapproximation of bitwiseOr at line 165, overapproximation of bitwiseAnd at line 170. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L34] const SORT_32 mask_SORT_32 = (SORT_32)-1 >> (sizeof(SORT_32) * 8 - 4); [L35] const SORT_32 msb_SORT_32 = (SORT_32)1 << (4 - 1); [L37] const SORT_68 mask_SORT_68 = (SORT_68)-1 >> (sizeof(SORT_68) * 8 - 10); [L38] const SORT_68 msb_SORT_68 = (SORT_68)1 << (10 - 1); [L40] const SORT_1 var_7 = 0; [L41] const SORT_10 var_12 = 1; [L42] const SORT_1 var_22 = 1; [L43] const SORT_68 var_69 = 0; [L44] const SORT_10 var_119 = 104; [L46] SORT_1 input_2; [L47] SORT_3 input_4; [L48] SORT_1 input_5; [L49] SORT_1 input_6; [L50] SORT_1 input_30; [L51] SORT_32 input_33; [L52] SORT_1 input_35; [L53] SORT_32 input_37; [L54] SORT_1 input_39; [L55] SORT_1 input_45; [L56] SORT_1 input_47; [L57] SORT_1 input_49; [L58] SORT_3 input_53; [L59] SORT_1 input_56; [L60] SORT_1 input_66; [L61] SORT_1 input_75; [L62] SORT_1 input_81; [L63] SORT_1 input_85; [L64] SORT_1 input_95; [L65] SORT_1 input_101; [L66] SORT_1 input_107; [L67] SORT_1 input_113; [L68] SORT_1 input_114; [L69] SORT_1 input_115; [L70] SORT_1 input_132; [L71] SORT_68 input_139; [L72] SORT_1 input_147; [L73] SORT_1 input_148; [L74] SORT_1 input_149; [L76] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_1 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_68 state_70 = __VERIFIER_nondet_ushort() & mask_SORT_68; [L88] SORT_1 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] SORT_1 init_9_arg_1 = var_7; [L91] state_8 = init_9_arg_1 [L92] SORT_1 init_16_arg_1 = var_7; [L93] state_15 = init_16_arg_1 [L94] SORT_1 init_27_arg_1 = var_7; [L95] state_26 = init_27_arg_1 [L96] SORT_1 init_29_arg_1 = var_7; [L97] state_28 = init_29_arg_1 [L98] SORT_1 init_42_arg_1 = var_7; [L99] state_41 = init_42_arg_1 [L100] SORT_1 init_44_arg_1 = var_7; [L101] state_43 = init_44_arg_1 [L102] SORT_1 init_52_arg_1 = var_22; [L103] state_51 = init_52_arg_1 [L104] SORT_1 init_59_arg_1 = var_7; [L105] state_58 = init_59_arg_1 [L106] SORT_1 init_61_arg_1 = var_7; [L107] state_60 = init_61_arg_1 [L108] SORT_1 init_63_arg_1 = var_7; [L109] state_62 = init_63_arg_1 [L110] SORT_1 init_65_arg_1 = var_7; [L111] state_64 = init_65_arg_1 [L112] SORT_68 init_71_arg_1 = var_69; [L113] state_70 = init_71_arg_1 [L114] SORT_1 init_73_arg_1 = var_7; [L115] state_72 = init_73_arg_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_52_arg_1=1, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_32=15, mask_SORT_68=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_32=8, msb_SORT_68=512, state_15=0, state_26=0, state_28=0, state_41=0, state_43=0, state_51=1, state_58=0, state_60=0, state_62=0, state_64=0, state_70=0, state_72=0, state_8=0, var_119=104, var_12=1, var_22=1, var_69=0, var_7=0] [L118] input_2 = __VERIFIER_nondet_uchar() [L119] input_4 = __VERIFIER_nondet_uchar() [L120] input_5 = __VERIFIER_nondet_uchar() [L121] input_6 = __VERIFIER_nondet_uchar() [L122] input_30 = __VERIFIER_nondet_uchar() [L123] input_33 = __VERIFIER_nondet_uchar() [L124] input_35 = __VERIFIER_nondet_uchar() [L125] input_37 = __VERIFIER_nondet_uchar() [L126] input_39 = __VERIFIER_nondet_uchar() [L127] input_45 = __VERIFIER_nondet_uchar() [L128] input_47 = __VERIFIER_nondet_uchar() [L129] input_49 = __VERIFIER_nondet_uchar() [L130] input_53 = __VERIFIER_nondet_uchar() [L131] input_56 = __VERIFIER_nondet_uchar() [L132] input_66 = __VERIFIER_nondet_uchar() [L133] input_75 = __VERIFIER_nondet_uchar() [L134] input_81 = __VERIFIER_nondet_uchar() [L135] input_85 = __VERIFIER_nondet_uchar() [L136] input_95 = __VERIFIER_nondet_uchar() [L137] input_101 = __VERIFIER_nondet_uchar() [L138] input_107 = __VERIFIER_nondet_uchar() [L139] input_113 = __VERIFIER_nondet_uchar() [L140] input_114 = __VERIFIER_nondet_uchar() [L141] input_115 = __VERIFIER_nondet_uchar() [L142] input_132 = __VERIFIER_nondet_uchar() [L143] input_139 = __VERIFIER_nondet_ushort() [L144] input_147 = __VERIFIER_nondet_uchar() [L145] input_148 = __VERIFIER_nondet_uchar() [L146] input_149 = __VERIFIER_nondet_uchar() [L149] SORT_1 var_11_arg_0 = state_8; VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_52_arg_1=1, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, input_101=20, input_107=15, input_113=11, input_114=8, input_115=10, input_132=14, input_139=24, input_147=17, input_148=2, input_149=1, input_2=25, input_30=21, input_33=29, input_35=3, input_37=22, input_39=7, input_4=18, input_45=9, input_47=26, input_49=4, input_5=16, input_53=13, input_56=23, input_6=28, input_66=27, input_75=5, input_81=6, input_85=12, input_95=19, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_32=15, mask_SORT_68=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_32=8, msb_SORT_68=512, state_15=0, state_26=0, state_28=0, state_41=0, state_43=0, state_51=1, state_58=0, state_60=0, state_62=0, state_64=0, state_70=0, state_72=0, state_8=0, var_119=104, var_11_arg_0=0, var_12=1, var_22=1, var_69=0, var_7=0] [L150] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_52_arg_1=1, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, input_101=20, input_107=15, input_113=11, input_114=8, input_115=10, input_132=14, input_139=24, input_147=17, input_148=2, input_149=1, input_2=25, input_30=21, input_33=29, input_35=3, input_37=22, input_39=7, input_4=18, input_45=9, input_47=26, input_49=4, input_5=16, input_53=13, input_56=23, input_6=28, input_66=27, input_75=5, input_81=6, input_85=12, input_95=19, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_32=15, mask_SORT_68=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_32=8, msb_SORT_68=512, state_15=0, state_26=0, state_28=0, state_41=0, state_43=0, state_51=1, state_58=0, state_60=0, state_62=0, state_64=0, state_70=0, state_72=0, state_8=0, var_119=104, var_11_arg_0=0, var_12=1, var_22=1, var_69=0, var_7=0] [L151] SORT_10 var_11 = var_11_arg_0; [L152] SORT_10 var_13_arg_0 = var_11; [L153] SORT_10 var_13_arg_1 = var_12; [L154] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L155] SORT_1 var_14_arg_0 = var_13; [L156] SORT_1 var_14 = ~var_14_arg_0; [L157] SORT_1 var_17_arg_0 = state_15; VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_52_arg_1=1, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, input_101=20, input_107=15, input_113=11, input_114=8, input_115=10, input_132=14, input_139=24, input_147=17, input_148=2, input_149=1, input_2=25, input_30=21, input_33=29, input_35=3, input_37=22, input_39=7, input_4=18, input_45=9, input_47=26, input_49=4, input_5=16, input_53=13, input_56=23, input_6=28, input_66=27, input_75=5, input_81=6, input_85=12, input_95=19, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_32=15, mask_SORT_68=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_32=8, msb_SORT_68=512, state_15=0, state_26=0, state_28=0, state_41=0, state_43=0, state_51=1, state_58=0, state_60=0, state_62=0, state_64=0, state_70=0, state_72=0, state_8=0, var_11=0, var_119=104, var_11_arg_0=0, var_12=1, var_13=0, var_13_arg_0=0, var_13_arg_1=1, var_14_arg_0=0, var_17_arg_0=0, var_22=1, var_69=0, var_7=0] [L158] var_17_arg_0 = var_17_arg_0 & mask_SORT_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_52_arg_1=1, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, input_101=20, input_107=15, input_113=11, input_114=8, input_115=10, input_132=14, input_139=24, input_147=17, input_148=2, input_149=1, input_2=25, input_30=21, input_33=29, input_35=3, input_37=22, input_39=7, input_4=18, input_45=9, input_47=26, input_49=4, input_5=16, input_53=13, input_56=23, input_6=28, input_66=27, input_75=5, input_81=6, input_85=12, input_95=19, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_32=15, mask_SORT_68=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_32=8, msb_SORT_68=512, state_15=0, state_26=0, state_28=0, state_41=0, state_43=0, state_51=1, state_58=0, state_60=0, state_62=0, state_64=0, state_70=0, state_72=0, state_8=0, var_11=0, var_119=104, var_11_arg_0=0, var_12=1, var_13=0, var_13_arg_0=0, var_13_arg_1=1, var_14_arg_0=0, var_17_arg_0=0, var_22=1, var_69=0, var_7=0] [L159] SORT_10 var_17 = var_17_arg_0; [L160] SORT_10 var_18_arg_0 = var_17; [L161] SORT_10 var_18_arg_1 = var_12; [L162] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L163] SORT_1 var_19_arg_0 = var_14; [L164] SORT_1 var_19_arg_1 = var_18; [L165] SORT_1 var_19 = var_19_arg_0 | var_19_arg_1; [L166] SORT_1 var_23_arg_0 = var_19; [L167] SORT_1 var_23 = ~var_23_arg_0; [L168] SORT_1 var_24_arg_0 = var_22; [L169] SORT_1 var_24_arg_1 = var_23; [L170] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_52_arg_1=1, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, input_101=20, input_107=15, input_113=11, input_114=8, input_115=10, input_132=14, input_139=24, input_147=17, input_148=2, input_149=1, input_2=25, input_30=21, input_33=29, input_35=3, input_37=22, input_39=7, input_4=18, input_45=9, input_47=26, input_49=4, input_5=16, input_53=13, input_56=23, input_6=28, input_66=27, input_75=5, input_81=6, input_85=12, input_95=19, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_32=15, mask_SORT_68=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_32=8, msb_SORT_68=512, state_15=0, state_26=0, state_28=0, state_41=0, state_43=0, state_51=1, state_58=0, state_60=0, state_62=0, state_64=0, state_70=0, state_72=0, state_8=0, var_11=0, var_119=104, var_11_arg_0=0, var_12=1, var_13=0, var_13_arg_0=0, var_13_arg_1=1, var_14=0, var_14_arg_0=0, var_17=0, var_17_arg_0=0, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_22=1, var_23=255, var_23_arg_0=0, var_24=1, var_24_arg_0=1, var_24_arg_1=255, var_69=0, var_7=0] [L171] var_24 = var_24 & mask_SORT_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_52_arg_1=1, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, input_101=20, input_107=15, input_113=11, input_114=8, input_115=10, input_132=14, input_139=24, input_147=17, input_148=2, input_149=1, input_2=25, input_30=21, input_33=29, input_35=3, input_37=22, input_39=7, input_4=18, input_45=9, input_47=26, input_49=4, input_5=16, input_53=13, input_56=23, input_6=28, input_66=27, input_75=5, input_81=6, input_85=12, input_95=19, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_32=15, mask_SORT_68=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_32=8, msb_SORT_68=512, state_15=0, state_26=0, state_28=0, state_41=0, state_43=0, state_51=1, state_58=0, state_60=0, state_62=0, state_64=0, state_70=0, state_72=0, state_8=0, var_11=0, var_119=104, var_11_arg_0=0, var_12=1, var_13=0, var_13_arg_0=0, var_13_arg_1=1, var_14=0, var_14_arg_0=0, var_17=0, var_17_arg_0=0, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_22=1, var_23=255, var_23_arg_0=0, var_24=1, var_24_arg_0=1, var_24_arg_1=255, var_69=0, var_7=0] [L172] SORT_1 bad_25_arg_0 = var_24; [L173] CALL __VERIFIER_assert(!(bad_25_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 252 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 252 mSDsluCounter, 218 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 113 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 105 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 61 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 11:24:56,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8 --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 71db3ddd8c41e0e55165084822cc484764b1b1fea6b2ce41ef188424a7fe2ced --- 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-e04fb08 [2022-11-16 11:24:59,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:24:59,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:24:59,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:24:59,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:24:59,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:24:59,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:24:59,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:24:59,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:24:59,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:24:59,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:24:59,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:24:59,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:24:59,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:24:59,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:24:59,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:24:59,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:24:59,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:24:59,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:24:59,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:24:59,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:24:59,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:24:59,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:24:59,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:24:59,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:24:59,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:24:59,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:24:59,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:24:59,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:24:59,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:24:59,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:24:59,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:24:59,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:24:59,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:24:59,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:24:59,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:24:59,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:24:59,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:24:59,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:24:59,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:24:59,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:24:59,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 11:24:59,253 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:24:59,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:24:59,254 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:24:59,255 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:24:59,256 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:24:59,256 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:24:59,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:24:59,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:24:59,258 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:24:59,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:24:59,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:24:59,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:24:59,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:24:59,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:24:59,262 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:24:59,262 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 11:24:59,262 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 11:24:59,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:24:59,263 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:24:59,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:24:59,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:24:59,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:24:59,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:24:59,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:24:59,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:24:59,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:24:59,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:24:59,266 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 11:24:59,266 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 11:24:59,267 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:24:59,267 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:24:59,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:24:59,268 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 11:24:59,268 INFO L138 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_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71db3ddd8c41e0e55165084822cc484764b1b1fea6b2ce41ef188424a7fe2ced [2022-11-16 11:24:59,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:24:59,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:24:59,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:24:59,785 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:24:59,789 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:24:59,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p06.c [2022-11-16 11:24:59,876 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/data/1c1aae4d2/a7e932910c83414d8445b6d2adde5c95/FLAGdfc9a4e06 [2022-11-16 11:25:00,611 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:25:00,612 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p06.c [2022-11-16 11:25:00,630 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/data/1c1aae4d2/a7e932910c83414d8445b6d2adde5c95/FLAGdfc9a4e06 [2022-11-16 11:25:00,901 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/data/1c1aae4d2/a7e932910c83414d8445b6d2adde5c95 [2022-11-16 11:25:00,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:25:00,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:25:00,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:25:00,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:25:00,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:25:00,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:25:00" (1/1) ... [2022-11-16 11:25:00,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c785d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:00, skipping insertion in model container [2022-11-16 11:25:00,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:25:00" (1/1) ... [2022-11-16 11:25:00,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:25:00,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:25:01,201 WARN L229 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_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p06.c[1107,1120] [2022-11-16 11:25:01,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:25:01,384 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:25:01,398 WARN L229 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_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p06.c[1107,1120] [2022-11-16 11:25:01,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:25:01,533 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:25:01,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:01 WrapperNode [2022-11-16 11:25:01,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:25:01,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:25:01,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:25:01,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:25:01,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:01" (1/1) ... [2022-11-16 11:25:01,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:01" (1/1) ... [2022-11-16 11:25:01,647 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 436 [2022-11-16 11:25:01,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:25:01,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:25:01,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:25:01,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:25:01,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:01" (1/1) ... [2022-11-16 11:25:01,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:01" (1/1) ... [2022-11-16 11:25:01,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:01" (1/1) ... [2022-11-16 11:25:01,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:01" (1/1) ... [2022-11-16 11:25:01,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:01" (1/1) ... [2022-11-16 11:25:01,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:01" (1/1) ... [2022-11-16 11:25:01,684 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:01" (1/1) ... [2022-11-16 11:25:01,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:01" (1/1) ... [2022-11-16 11:25:01,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:25:01,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:25:01,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:25:01,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:25:01,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:01" (1/1) ... [2022-11-16 11:25:01,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:25:01,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:25:01,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:25:01,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:25:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:25:01,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:25:02,118 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:25:02,120 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:25:02,830 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:25:02,838 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:25:02,839 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:25:02,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:25:02 BoogieIcfgContainer [2022-11-16 11:25:02,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:25:02,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:25:02,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:25:02,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:25:02,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:25:00" (1/3) ... [2022-11-16 11:25:02,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a42b5ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:25:02, skipping insertion in model container [2022-11-16 11:25:02,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:01" (2/3) ... [2022-11-16 11:25:02,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a42b5ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:25:02, skipping insertion in model container [2022-11-16 11:25:02,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:25:02" (3/3) ... [2022-11-16 11:25:02,857 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p06.c [2022-11-16 11:25:02,880 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:25:02,881 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:25:02,937 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:25:02,948 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;@69df0723, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:25:02,948 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:25:02,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-11-16 11:25:02,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 11:25:02,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:02,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 11:25:02,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:25:02,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:02,969 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 11:25:02,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:25:02,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373243571] [2022-11-16 11:25:02,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:02,985 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 [2022-11-16 11:25:02,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:25:02,992 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 11:25:03,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 11:25:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:03,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-16 11:25:03,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:25:03,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:03,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:25:03,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:25:03,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373243571] [2022-11-16 11:25:03,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373243571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:03,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:03,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:25:03,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550566167] [2022-11-16 11:25:03,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:03,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:25:03,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:25:03,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:25:03,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:25:03,609 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-11-16 11:25:03,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:03,717 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 11:25:03,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:25:03,721 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 [2022-11-16 11:25:03,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:03,731 INFO L225 Difference]: With dead ends: 20 [2022-11-16 11:25:03,731 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 11:25:03,735 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 [2022-11-16 11:25:03,744 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:03,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:25:03,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 11:25:03,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 11:25:03,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-11-16 11:25:03,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 11:25:03,788 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 11:25:03,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:03,789 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 11:25:03,789 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) [2022-11-16 11:25:03,789 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 11:25:03,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 11:25:03,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:03,790 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:03,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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)] Forceful destruction successful, exit code 0 [2022-11-16 11:25:04,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 11:25:04,005 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:25:04,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:04,006 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 11:25:04,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:25:04,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085924572] [2022-11-16 11:25:04,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:04,008 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 [2022-11-16 11:25:04,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:25:04,009 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 11:25:04,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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 (3)] Waiting until timeout for monitored process [2022-11-16 11:25:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:04,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-16 11:25:04,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:25:04,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:04,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:25:05,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:05,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:25:05,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085924572] [2022-11-16 11:25:05,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085924572] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:25:05,138 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:25:05,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 11:25:05,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757253325] [2022-11-16 11:25:05,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:25:05,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:25:05,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:25:05,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:25:05,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:25:05,150 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2022-11-16 11:25:05,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:05,274 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-16 11:25:05,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:25:05,275 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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 8 [2022-11-16 11:25:05,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:05,276 INFO L225 Difference]: With dead ends: 16 [2022-11-16 11:25:05,276 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 11:25:05,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:25:05,277 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:05,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 15 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 7 Unchecked, 0.1s Time] [2022-11-16 11:25:05,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 11:25:05,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-16 11:25:05,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-16 11:25:05,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-16 11:25:05,293 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-16 11:25:05,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:05,294 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-16 11:25:05,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2022-11-16 11:25:05,294 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-16 11:25:05,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 11:25:05,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:05,295 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-16 11:25:05,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:25:05,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 11:25:05,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:25:05,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:05,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-16 11:25:05,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:25:05,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720850040] [2022-11-16 11:25:05,513 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:25:05,514 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 [2022-11-16 11:25:05,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:25:05,515 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 11:25:05,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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 (4)] Waiting until timeout for monitored process [2022-11-16 11:25:05,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:25:05,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:25:05,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-16 11:25:05,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:25:06,389 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:06,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:25:13,492 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:13,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:25:13,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720850040] [2022-11-16 11:25:13,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720850040] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:25:13,496 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:25:13,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-16 11:25:13,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071528382] [2022-11-16 11:25:13,497 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:25:13,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:25:13,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:25:13,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:25:13,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:25:13,504 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2022-11-16 11:25:13,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:13,731 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-16 11:25:13,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:25:13,732 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 11 [2022-11-16 11:25:13,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:13,732 INFO L225 Difference]: With dead ends: 19 [2022-11-16 11:25:13,733 INFO L226 Difference]: Without dead ends: 17 [2022-11-16 11:25:13,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:25:13,734 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:13,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 15 Unchecked, 0.1s Time] [2022-11-16 11:25:13,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-16 11:25:13,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-16 11:25:13,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-11-16 11:25:13,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-16 11:25:13,740 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-16 11:25:13,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:13,740 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-16 11:25:13,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2022-11-16 11:25:13,741 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-16 11:25:13,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 11:25:13,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:13,742 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-16 11:25:13,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:25:13,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 11:25:13,962 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:25:13,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:13,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-16 11:25:13,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:25:13,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048972602] [2022-11-16 11:25:13,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:25:13,965 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 [2022-11-16 11:25:13,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:25:13,967 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 11:25:13,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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 (5)] Waiting until timeout for monitored process [2022-11-16 11:25:14,533 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-16 11:25:14,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:25:14,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 179 conjunts are in the unsatisfiable core [2022-11-16 11:25:14,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:25:17,278 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:17,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:26:30,511 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:30,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:30,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048972602] [2022-11-16 11:26:30,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048972602] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:26:30,512 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:26:30,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-11-16 11:26:30,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216869322] [2022-11-16 11:26:30,513 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:26:30,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:26:30,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:30,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:26:30,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:26:30,514 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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) [2022-11-16 11:26:30,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:30,954 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-16 11:26:30,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:26:30,955 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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 14 [2022-11-16 11:26:30,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:30,956 INFO L225 Difference]: With dead ends: 22 [2022-11-16 11:26:30,956 INFO L226 Difference]: Without dead ends: 20 [2022-11-16 11:26:30,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:26:30,957 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 22 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:30,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 38 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 34 Unchecked, 0.1s Time] [2022-11-16 11:26:30,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-16 11:26:30,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-16 11:26:30,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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) [2022-11-16 11:26:30,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-16 11:26:30,962 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-11-16 11:26:30,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:30,962 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-16 11:26:30,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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) [2022-11-16 11:26:30,963 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-16 11:26:30,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 11:26:30,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:30,963 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-16 11:26:30,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:26:31,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 11:26:31,164 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:26:31,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:31,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-11-16 11:26:31,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:31,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591654457] [2022-11-16 11:26:31,166 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 11:26:31,166 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 [2022-11-16 11:26:31,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:31,168 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 11:26:31,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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 (6)] Waiting until timeout for monitored process [2022-11-16 11:26:31,626 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 11:26:31,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:26:31,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 1230 conjuncts, 200 conjunts are in the unsatisfiable core [2022-11-16 11:26:31,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:32,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:33:15,241 WARN L233 SmtUtils]: Spent 11.23s on a formula simplification. DAG size of input: 1669 DAG size of output: 132 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:33:15,409 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:15,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:33:15,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591654457] [2022-11-16 11:33:15,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591654457] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:33:15,410 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:33:15,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-16 11:33:15,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481486181] [2022-11-16 11:33:15,410 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:33:15,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:15,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:33:15,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:15,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:15,412 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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) [2022-11-16 11:33:15,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:15,717 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2022-11-16 11:33:15,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:33:15,718 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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 17 [2022-11-16 11:33:15,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:15,718 INFO L225 Difference]: With dead ends: 25 [2022-11-16 11:33:15,719 INFO L226 Difference]: Without dead ends: 23 [2022-11-16 11:33:15,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:33:15,720 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 21 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:15,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 30 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 37 Unchecked, 0.1s Time] [2022-11-16 11:33:15,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-16 11:33:15,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2022-11-16 11:33:15,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 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) [2022-11-16 11:33:15,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-11-16 11:33:15,727 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 17 [2022-11-16 11:33:15,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:15,727 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-11-16 11:33:15,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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) [2022-11-16 11:33:15,727 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-11-16 11:33:15,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 11:33:15,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:15,728 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1] [2022-11-16 11:33:15,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:33:15,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 11:33:15,931 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:33:15,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:15,931 INFO L85 PathProgramCache]: Analyzing trace with hash -826954269, now seen corresponding path program 5 times [2022-11-16 11:33:15,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:33:15,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890813235] [2022-11-16 11:33:15,932 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 11:33:15,932 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 [2022-11-16 11:33:15,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:33:15,933 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 11:33:15,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dd68b9b-3f1e-40f6-b5cd-308ba3df2c38/bin/uautomizer-tPACEb0tL8/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 (7)] Waiting until timeout for monitored process [2022-11-16 11:33:16,565 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-16 11:33:16,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:33:16,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 1513 conjuncts, 280 conjunts are in the unsatisfiable core [2022-11-16 11:33:16,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:33:18,342 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:18,343 INFO L328 TraceCheckSpWp]: Computing backward predicates...