./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.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_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 c987364cd5b3d275ffe2f9fcce601a27cd21bf7f21a4e5bdd8d96666e9465eb2 --- 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 11:33:06,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:33:06,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:33:06,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:33:06,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:33:06,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:33:06,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:33:06,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:33:06,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:33:06,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:33:06,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:33:06,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:33:06,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:33:06,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:33:06,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:33:06,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:33:06,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:33:06,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:33:06,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:33:06,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:33:06,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:33:06,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:33:06,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:33:06,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:33:06,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:33:06,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:33:06,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:33:06,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:33:06,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:33:06,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:33:06,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:33:06,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:33:06,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:33:06,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:33:06,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:33:06,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:33:06,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:33:06,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:33:06,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:33:06,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:33:06,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:33:06,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:33:06,388 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:33:06,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:33:06,389 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:33:06,389 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:33:06,391 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:33:06,392 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:33:06,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:33:06,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:33:06,393 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:33:06,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:33:06,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:33:06,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:33:06,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:33:06,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:33:06,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:33:06,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:33:06,396 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:33:06,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:33:06,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:33:06,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:33:06,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:33:06,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:33:06,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:33:06,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:33:06,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:33:06,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:33:06,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:33:06,399 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:33:06,399 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:33:06,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:33:06,400 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_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c987364cd5b3d275ffe2f9fcce601a27cd21bf7f21a4e5bdd8d96666e9465eb2 [2022-11-16 11:33:06,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:33:06,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:33:06,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:33:06,804 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:33:06,805 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:33:06,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c [2022-11-16 11:33:06,879 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/data/fa83394c1/75bfb4d09eb94fe0b2d36b6a477d384d/FLAG9eb2cab67 [2022-11-16 11:33:07,539 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:33:07,540 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c [2022-11-16 11:33:07,552 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/data/fa83394c1/75bfb4d09eb94fe0b2d36b6a477d384d/FLAG9eb2cab67 [2022-11-16 11:33:07,819 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/data/fa83394c1/75bfb4d09eb94fe0b2d36b6a477d384d [2022-11-16 11:33:07,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:33:07,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:33:07,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:33:07,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:33:07,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:33:07,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:33:07" (1/1) ... [2022-11-16 11:33:07,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621d5f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:07, skipping insertion in model container [2022-11-16 11:33:07,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:33:07" (1/1) ... [2022-11-16 11:33:07,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:33:07,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:33:08,138 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_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c[1107,1120] [2022-11-16 11:33:08,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:33:08,268 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:33:08,282 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_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c[1107,1120] [2022-11-16 11:33:08,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:33:08,381 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:33:08,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:08 WrapperNode [2022-11-16 11:33:08,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:33:08,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:33:08,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:33:08,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:33:08,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:08" (1/1) ... [2022-11-16 11:33:08,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:08" (1/1) ... [2022-11-16 11:33:08,481 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 523 [2022-11-16 11:33:08,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:33:08,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:33:08,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:33:08,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:33:08,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:08" (1/1) ... [2022-11-16 11:33:08,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:08" (1/1) ... [2022-11-16 11:33:08,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:08" (1/1) ... [2022-11-16 11:33:08,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:08" (1/1) ... [2022-11-16 11:33:08,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:08" (1/1) ... [2022-11-16 11:33:08,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:08" (1/1) ... [2022-11-16 11:33:08,526 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:08" (1/1) ... [2022-11-16 11:33:08,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:08" (1/1) ... [2022-11-16 11:33:08,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:33:08,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:33:08,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:33:08,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:33:08,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:08" (1/1) ... [2022-11-16 11:33:08,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:33:08,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:33:08,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:33:08,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:33:08,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:33:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:33:08,963 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:33:08,966 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:33:09,709 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:33:09,719 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:33:09,719 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:33:09,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:33:09 BoogieIcfgContainer [2022-11-16 11:33:09,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:33:09,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:33:09,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:33:09,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:33:09,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:33:07" (1/3) ... [2022-11-16 11:33:09,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a37d914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:33:09, skipping insertion in model container [2022-11-16 11:33:09,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:08" (2/3) ... [2022-11-16 11:33:09,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a37d914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:33:09, skipping insertion in model container [2022-11-16 11:33:09,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:33:09" (3/3) ... [2022-11-16 11:33:09,745 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c [2022-11-16 11:33:09,776 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:33:09,777 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:33:09,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:33:09,890 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;@5e18e1ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:33:09,890 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:33:09,896 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 11:33:09,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 11:33:09,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:09,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:09,905 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:33:09,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:09,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1178400828, now seen corresponding path program 1 times [2022-11-16 11:33:09,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:09,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140153029] [2022-11-16 11:33:09,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:09,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:10,560 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 11:33:10,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:10,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140153029] [2022-11-16 11:33:10,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140153029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:10,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:10,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:33:10,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202202350] [2022-11-16 11:33:10,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:10,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:33:10,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:10,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:33:10,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:33:10,616 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 11:33:10,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:10,779 INFO L93 Difference]: Finished difference Result 181 states and 297 transitions. [2022-11-16 11:33:10,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:33:10,782 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 11:33:10,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:10,798 INFO L225 Difference]: With dead ends: 181 [2022-11-16 11:33:10,798 INFO L226 Difference]: Without dead ends: 121 [2022-11-16 11:33:10,802 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 11:33:10,807 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 252 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:10,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 218 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:33:10,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-16 11:33:10,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 60. [2022-11-16 11:33:10,869 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 11:33:10,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 94 transitions. [2022-11-16 11:33:10,879 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 94 transitions. Word has length 11 [2022-11-16 11:33:10,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:10,880 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 94 transitions. [2022-11-16 11:33:10,881 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 11:33:10,882 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 94 transitions. [2022-11-16 11:33:10,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 11:33:10,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:10,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:10,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:33:10,884 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:33:10,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:10,886 INFO L85 PathProgramCache]: Analyzing trace with hash 2126004980, now seen corresponding path program 1 times [2022-11-16 11:33:10,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:10,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003968672] [2022-11-16 11:33:10,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:10,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:11,135 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 11:33:11,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:11,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003968672] [2022-11-16 11:33:11,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003968672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:11,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:11,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:33:11,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124932617] [2022-11-16 11:33:11,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:11,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:33:11,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:11,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:33:11,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:33:11,140 INFO L87 Difference]: Start difference. First operand 60 states and 94 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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 11:33:11,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:11,689 INFO L93 Difference]: Finished difference Result 306 states and 476 transitions. [2022-11-16 11:33:11,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:33:11,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) Word has length 12 [2022-11-16 11:33:11,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:11,697 INFO L225 Difference]: With dead ends: 306 [2022-11-16 11:33:11,697 INFO L226 Difference]: Without dead ends: 174 [2022-11-16 11:33:11,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:33:11,706 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 291 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:11,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 360 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:33:11,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-16 11:33:11,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 65. [2022-11-16 11:33:11,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.578125) internal successors, (101), 64 states have internal predecessors, (101), 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 11:33:11,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 101 transitions. [2022-11-16 11:33:11,728 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 101 transitions. Word has length 12 [2022-11-16 11:33:11,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:11,729 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 101 transitions. [2022-11-16 11:33:11,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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 11:33:11,730 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 101 transitions. [2022-11-16 11:33:11,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 11:33:11,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:11,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:11,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:33:11,733 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:33:11,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:11,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1248747424, now seen corresponding path program 1 times [2022-11-16 11:33:11,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:11,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618412866] [2022-11-16 11:33:11,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:11,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:11,940 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 11:33:11,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:11,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618412866] [2022-11-16 11:33:11,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618412866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:11,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:11,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:33:11,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930715501] [2022-11-16 11:33:11,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:11,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:33:11,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:11,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:33:11,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:33:11,943 INFO L87 Difference]: Start difference. First operand 65 states and 101 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 11:33:12,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:12,327 INFO L93 Difference]: Finished difference Result 180 states and 283 transitions. [2022-11-16 11:33:12,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:33:12,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Word has length 13 [2022-11-16 11:33:12,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:12,329 INFO L225 Difference]: With dead ends: 180 [2022-11-16 11:33:12,329 INFO L226 Difference]: Without dead ends: 122 [2022-11-16 11:33:12,330 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 11:33:12,332 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 170 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:12,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 88 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:33:12,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-16 11:33:12,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 66. [2022-11-16 11:33:12,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.5692307692307692) internal successors, (102), 65 states have internal predecessors, (102), 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 11:33:12,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 102 transitions. [2022-11-16 11:33:12,347 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 102 transitions. Word has length 13 [2022-11-16 11:33:12,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:12,348 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 102 transitions. [2022-11-16 11:33:12,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 11:33:12,348 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 102 transitions. [2022-11-16 11:33:12,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 11:33:12,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:12,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:12,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:33:12,350 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:33:12,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:12,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1271212510, now seen corresponding path program 1 times [2022-11-16 11:33:12,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:12,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743563356] [2022-11-16 11:33:12,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:12,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:33:12,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:33:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:33:12,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:33:12,483 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:33:12,484 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:33:12,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:33:12,491 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-16 11:33:12,496 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:33:12,560 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 11:33:12,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:33:12 BoogieIcfgContainer [2022-11-16 11:33:12,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:33:12,578 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:33:12,578 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:33:12,578 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:33:12,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:33:09" (3/4) ... [2022-11-16 11:33:12,583 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:33:12,583 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:33:12,585 INFO L158 Benchmark]: Toolchain (without parser) took 4748.46ms. Allocated memory was 94.4MB in the beginning and 157.3MB in the end (delta: 62.9MB). Free memory was 69.9MB in the beginning and 104.5MB in the end (delta: -34.6MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2022-11-16 11:33:12,585 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:33:12,586 INFO L158 Benchmark]: CACSL2BoogieTranslator took 549.62ms. Allocated memory is still 94.4MB. Free memory was 69.7MB in the beginning and 61.6MB in the end (delta: 8.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:33:12,586 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.55ms. Allocated memory is still 94.4MB. Free memory was 61.4MB in the beginning and 56.8MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:33:12,587 INFO L158 Benchmark]: Boogie Preprocessor took 53.82ms. Allocated memory is still 94.4MB. Free memory was 56.8MB in the beginning and 54.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:33:12,588 INFO L158 Benchmark]: RCFGBuilder took 1182.52ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 54.1MB in the beginning and 62.9MB in the end (delta: -8.8MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2022-11-16 11:33:12,589 INFO L158 Benchmark]: TraceAbstraction took 2852.75ms. Allocated memory was 113.2MB in the beginning and 157.3MB in the end (delta: 44.0MB). Free memory was 62.3MB in the beginning and 105.6MB in the end (delta: -43.2MB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. [2022-11-16 11:33:12,589 INFO L158 Benchmark]: Witness Printer took 6.00ms. Allocated memory is still 157.3MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:33:12,592 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 549.62ms. Allocated memory is still 94.4MB. Free memory was 69.7MB in the beginning and 61.6MB in the end (delta: 8.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.55ms. Allocated memory is still 94.4MB. Free memory was 61.4MB in the beginning and 56.8MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.82ms. Allocated memory is still 94.4MB. Free memory was 56.8MB in the beginning and 54.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1182.52ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 54.1MB in the beginning and 62.9MB in the end (delta: -8.8MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2852.75ms. Allocated memory was 113.2MB in the beginning and 157.3MB in the end (delta: 44.0MB). Free memory was 62.3MB in the beginning and 105.6MB in the end (delta: -43.2MB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. * Witness Printer took 6.00ms. Allocated memory is still 157.3MB. Free memory is still 104.5MB. 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 163, overapproximation of bitwiseOr at line 161, overapproximation of bitwiseAnd at line 166. 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_18 mask_SORT_18 = (SORT_18)-1 >> (sizeof(SORT_18) * 8 - 4); [L35] const SORT_18 msb_SORT_18 = (SORT_18)1 << (4 - 1); [L37] const SORT_71 mask_SORT_71 = (SORT_71)-1 >> (sizeof(SORT_71) * 8 - 10); [L38] const SORT_71 msb_SORT_71 = (SORT_71)1 << (10 - 1); [L40] const SORT_1 var_7 = 0; [L41] const SORT_10 var_12 = 1; [L42] const SORT_1 var_15 = 1; [L43] const SORT_18 var_20 = 1; [L44] const SORT_71 var_72 = 0; [L45] const SORT_10 var_81 = 104; [L47] SORT_1 input_2; [L48] SORT_3 input_4; [L49] SORT_1 input_5; [L50] SORT_1 input_6; [L51] SORT_1 input_32; [L52] SORT_18 input_34; [L53] SORT_1 input_36; [L54] SORT_18 input_38; [L55] SORT_1 input_40; [L56] SORT_1 input_42; [L57] SORT_1 input_48; [L58] SORT_1 input_50; [L59] SORT_1 input_52; [L60] SORT_3 input_54; [L61] SORT_1 input_57; [L62] SORT_1 input_67; [L63] SORT_1 input_75; [L64] SORT_1 input_76; [L65] SORT_1 input_77; [L66] SORT_1 input_89; [L67] SORT_1 input_90; [L68] SORT_1 input_91; [L69] SORT_1 input_102; [L70] SORT_1 input_108; [L71] SORT_1 input_114; [L72] SORT_1 input_125; [L73] SORT_1 input_127; [L74] SORT_71 input_142; [L76] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_71 state_73 = __VERIFIER_nondet_ushort() & mask_SORT_71; [L89] SORT_1 init_9_arg_1 = var_7; [L90] state_8 = init_9_arg_1 [L91] SORT_1 init_17_arg_1 = var_15; [L92] state_16 = init_17_arg_1 [L93] SORT_1 init_29_arg_1 = var_7; [L94] state_28 = init_29_arg_1 [L95] SORT_1 init_31_arg_1 = var_7; [L96] state_30 = init_31_arg_1 [L97] SORT_1 init_45_arg_1 = var_7; [L98] state_44 = init_45_arg_1 [L99] SORT_1 init_47_arg_1 = var_7; [L100] state_46 = init_47_arg_1 [L101] SORT_1 init_60_arg_1 = var_7; [L102] state_59 = init_60_arg_1 [L103] SORT_1 init_62_arg_1 = var_7; [L104] state_61 = init_62_arg_1 [L105] SORT_1 init_64_arg_1 = var_7; [L106] state_63 = init_64_arg_1 [L107] SORT_1 init_66_arg_1 = var_7; [L108] state_65 = init_66_arg_1 [L109] SORT_1 init_70_arg_1 = var_7; [L110] state_69 = init_70_arg_1 [L111] SORT_71 init_74_arg_1 = var_72; [L112] state_73 = init_74_arg_1 VAL [init_17_arg_1=1, init_29_arg_1=0, init_31_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_70_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_18=15, mask_SORT_3=255, mask_SORT_71=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_18=8, msb_SORT_3=128, msb_SORT_71=512, state_16=1, state_28=0, state_30=0, state_44=0, state_46=0, state_59=0, state_61=0, state_63=0, state_65=0, state_69=0, state_73=0, state_8=0, var_12=1, var_15=1, var_20=1, var_7=0, var_72=0, var_81=104] [L115] input_2 = __VERIFIER_nondet_uchar() [L116] input_4 = __VERIFIER_nondet_uchar() [L117] input_5 = __VERIFIER_nondet_uchar() [L118] input_6 = __VERIFIER_nondet_uchar() [L119] input_32 = __VERIFIER_nondet_uchar() [L120] input_34 = __VERIFIER_nondet_uchar() [L121] input_36 = __VERIFIER_nondet_uchar() [L122] input_38 = __VERIFIER_nondet_uchar() [L123] input_40 = __VERIFIER_nondet_uchar() [L124] input_42 = __VERIFIER_nondet_uchar() [L125] input_48 = __VERIFIER_nondet_uchar() [L126] input_50 = __VERIFIER_nondet_uchar() [L127] input_52 = __VERIFIER_nondet_uchar() [L128] input_54 = __VERIFIER_nondet_uchar() [L129] input_57 = __VERIFIER_nondet_uchar() [L130] input_67 = __VERIFIER_nondet_uchar() [L131] input_75 = __VERIFIER_nondet_uchar() [L132] input_76 = __VERIFIER_nondet_uchar() [L133] input_77 = __VERIFIER_nondet_uchar() [L134] input_89 = __VERIFIER_nondet_uchar() [L135] input_90 = __VERIFIER_nondet_uchar() [L136] input_91 = __VERIFIER_nondet_uchar() [L137] input_102 = __VERIFIER_nondet_uchar() [L138] input_108 = __VERIFIER_nondet_uchar() [L139] input_114 = __VERIFIER_nondet_uchar() [L140] input_125 = __VERIFIER_nondet_uchar() [L141] input_127 = __VERIFIER_nondet_uchar() [L142] input_142 = __VERIFIER_nondet_ushort() [L145] SORT_1 var_11_arg_0 = state_8; VAL [init_17_arg_1=1, init_29_arg_1=0, init_31_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_70_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, input_102=17, input_108=20, input_114=7, input_125=3, input_127=19, input_142=13, input_2=23, input_32=25, input_34=15, input_36=1, input_38=16, input_4=21, input_40=22, input_42=10, input_48=11, input_5=18, input_50=8, input_52=5, input_54=6, input_57=24, input_6=28, input_67=12, input_75=4, input_76=14, input_77=27, input_89=9, input_90=26, input_91=2, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_18=15, mask_SORT_3=255, mask_SORT_71=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_18=8, msb_SORT_3=128, msb_SORT_71=512, state_16=1, state_28=0, state_30=0, state_44=0, state_46=0, state_59=0, state_61=0, state_63=0, state_65=0, state_69=0, state_73=0, state_8=0, var_11_arg_0=0, var_12=1, var_15=1, var_20=1, var_7=0, var_72=0, var_81=104] [L146] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 VAL [init_17_arg_1=1, init_29_arg_1=0, init_31_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_70_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, input_102=17, input_108=20, input_114=7, input_125=3, input_127=19, input_142=13, input_2=23, input_32=25, input_34=15, input_36=1, input_38=16, input_4=21, input_40=22, input_42=10, input_48=11, input_5=18, input_50=8, input_52=5, input_54=6, input_57=24, input_6=28, input_67=12, input_75=4, input_76=14, input_77=27, input_89=9, input_90=26, input_91=2, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_18=15, mask_SORT_3=255, mask_SORT_71=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_18=8, msb_SORT_3=128, msb_SORT_71=512, state_16=1, state_28=0, state_30=0, state_44=0, state_46=0, state_59=0, state_61=0, state_63=0, state_65=0, state_69=0, state_73=0, state_8=0, var_11_arg_0=0, var_12=1, var_15=1, var_20=1, var_7=0, var_72=0, var_81=104] [L147] SORT_10 var_11 = var_11_arg_0; [L148] SORT_10 var_13_arg_0 = var_11; [L149] SORT_10 var_13_arg_1 = var_12; [L150] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L151] SORT_1 var_14_arg_0 = var_13; [L152] SORT_1 var_14 = ~var_14_arg_0; [L153] SORT_1 var_19_arg_0 = state_16; VAL [init_17_arg_1=1, init_29_arg_1=0, init_31_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_70_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, input_102=17, input_108=20, input_114=7, input_125=3, input_127=19, input_142=13, input_2=23, input_32=25, input_34=15, input_36=1, input_38=16, input_4=21, input_40=22, input_42=10, input_48=11, input_5=18, input_50=8, input_52=5, input_54=6, input_57=24, input_6=28, input_67=12, input_75=4, input_76=14, input_77=27, input_89=9, input_90=26, input_91=2, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_18=15, mask_SORT_3=255, mask_SORT_71=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_18=8, msb_SORT_3=128, msb_SORT_71=512, state_16=1, state_28=0, state_30=0, state_44=0, state_46=0, state_59=0, state_61=0, state_63=0, state_65=0, state_69=0, state_73=0, state_8=0, var_11=0, 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_15=1, var_19_arg_0=1, var_20=1, var_7=0, var_72=0, var_81=104] [L154] var_19_arg_0 = var_19_arg_0 & mask_SORT_1 VAL [init_17_arg_1=1, init_29_arg_1=0, init_31_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_70_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, input_102=17, input_108=20, input_114=7, input_125=3, input_127=19, input_142=13, input_2=23, input_32=25, input_34=15, input_36=1, input_38=16, input_4=21, input_40=22, input_42=10, input_48=11, input_5=18, input_50=8, input_52=5, input_54=6, input_57=24, input_6=28, input_67=12, input_75=4, input_76=14, input_77=27, input_89=9, input_90=26, input_91=2, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_18=15, mask_SORT_3=255, mask_SORT_71=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_18=8, msb_SORT_3=128, msb_SORT_71=512, state_16=1, state_28=0, state_30=0, state_44=0, state_46=0, state_59=0, state_61=0, state_63=0, state_65=0, state_69=0, state_73=0, state_8=0, var_11=0, 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_15=1, var_19_arg_0=1, var_20=1, var_7=0, var_72=0, var_81=104] [L155] SORT_18 var_19 = var_19_arg_0; [L156] SORT_18 var_21_arg_0 = var_19; [L157] SORT_18 var_21_arg_1 = var_20; [L158] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L159] SORT_1 var_22_arg_0 = var_14; [L160] SORT_1 var_22_arg_1 = var_21; [L161] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L162] SORT_1 var_25_arg_0 = var_22; [L163] SORT_1 var_25 = ~var_25_arg_0; [L164] SORT_1 var_26_arg_0 = var_15; [L165] SORT_1 var_26_arg_1 = var_25; [L166] SORT_1 var_26 = var_26_arg_0 & var_26_arg_1; VAL [init_17_arg_1=1, init_29_arg_1=0, init_31_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_70_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, input_102=17, input_108=20, input_114=7, input_125=3, input_127=19, input_142=13, input_2=23, input_32=25, input_34=15, input_36=1, input_38=16, input_4=21, input_40=22, input_42=10, input_48=11, input_5=18, input_50=8, input_52=5, input_54=6, input_57=24, input_6=28, input_67=12, input_75=4, input_76=14, input_77=27, input_89=9, input_90=26, input_91=2, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_18=15, mask_SORT_3=255, mask_SORT_71=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_18=8, msb_SORT_3=128, msb_SORT_71=512, state_16=1, state_28=0, state_30=0, state_44=0, state_46=0, state_59=0, state_61=0, state_63=0, state_65=0, state_69=0, state_73=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=1, var_13=0, var_13_arg_0=0, var_13_arg_1=1, var_14=2, var_14_arg_0=0, var_15=1, var_19=1, var_19_arg_0=1, var_20=1, var_21=1, var_21_arg_0=1, var_21_arg_1=1, var_22=1, var_22_arg_0=2, var_22_arg_1=1, var_25=255, var_25_arg_0=1, var_26=1, var_26_arg_0=1, var_26_arg_1=255, var_7=0, var_72=0, var_81=104] [L167] var_26 = var_26 & mask_SORT_1 VAL [init_17_arg_1=1, init_29_arg_1=0, init_31_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_70_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, input_102=17, input_108=20, input_114=7, input_125=3, input_127=19, input_142=13, input_2=23, input_32=25, input_34=15, input_36=1, input_38=16, input_4=21, input_40=22, input_42=10, input_48=11, input_5=18, input_50=8, input_52=5, input_54=6, input_57=24, input_6=28, input_67=12, input_75=4, input_76=14, input_77=27, input_89=9, input_90=26, input_91=2, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_18=15, mask_SORT_3=255, mask_SORT_71=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_18=8, msb_SORT_3=128, msb_SORT_71=512, state_16=1, state_28=0, state_30=0, state_44=0, state_46=0, state_59=0, state_61=0, state_63=0, state_65=0, state_69=0, state_73=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=1, var_13=0, var_13_arg_0=0, var_13_arg_1=1, var_14=2, var_14_arg_0=0, var_15=1, var_19=1, var_19_arg_0=1, var_20=1, var_21=1, var_21_arg_0=1, var_21_arg_1=1, var_22=1, var_22_arg_0=2, var_22_arg_1=1, var_25=255, var_25_arg_0=1, var_26=1, var_26_arg_0=1, var_26_arg_1=255, var_7=0, var_72=0, var_81=104] [L168] SORT_1 bad_27_arg_0 = var_26; [L169] CALL __VERIFIER_assert(!(bad_27_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: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 713 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 713 mSDsluCounter, 666 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 372 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 404 IncrementalHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 294 mSDtfsCounter, 404 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=3, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 226 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 11:33:12,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 c987364cd5b3d275ffe2f9fcce601a27cd21bf7f21a4e5bdd8d96666e9465eb2 --- 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 11:33:15,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:33:15,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:33:15,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:33:15,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:33:15,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:33:15,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:33:15,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:33:15,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:33:15,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:33:15,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:33:15,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:33:15,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:33:15,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:33:15,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:33:15,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:33:15,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:33:15,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:33:15,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:33:15,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:33:15,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:33:15,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:33:15,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:33:15,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:33:15,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:33:15,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:33:15,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:33:15,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:33:15,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:33:15,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:33:15,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:33:15,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:33:15,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:33:15,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:33:15,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:33:15,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:33:15,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:33:15,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:33:15,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:33:15,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:33:15,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:33:15,651 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 11:33:15,701 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:33:15,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:33:15,702 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:33:15,702 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:33:15,703 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:33:15,703 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:33:15,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:33:15,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:33:15,706 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:33:15,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:33:15,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:33:15,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:33:15,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:33:15,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:33:15,708 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:33:15,708 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 11:33:15,709 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 11:33:15,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:33:15,709 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:33:15,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:33:15,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:33:15,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:33:15,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:33:15,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:33:15,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:33:15,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:33:15,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:33:15,712 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 11:33:15,712 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 11:33:15,712 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:33:15,712 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:33:15,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:33:15,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 11:33:15,713 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_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c987364cd5b3d275ffe2f9fcce601a27cd21bf7f21a4e5bdd8d96666e9465eb2 [2022-11-16 11:33:16,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:33:16,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:33:16,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:33:16,232 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:33:16,235 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:33:16,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c [2022-11-16 11:33:16,332 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/data/7b9e52b93/f3ab8741451b45dfa086642340ac3eef/FLAGd9930c714 [2022-11-16 11:33:17,059 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:33:17,060 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c [2022-11-16 11:33:17,071 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/data/7b9e52b93/f3ab8741451b45dfa086642340ac3eef/FLAGd9930c714 [2022-11-16 11:33:17,337 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/data/7b9e52b93/f3ab8741451b45dfa086642340ac3eef [2022-11-16 11:33:17,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:33:17,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:33:17,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:33:17,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:33:17,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:33:17,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:33:17" (1/1) ... [2022-11-16 11:33:17,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef88e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:17, skipping insertion in model container [2022-11-16 11:33:17,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:33:17" (1/1) ... [2022-11-16 11:33:17,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:33:17,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:33:17,588 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_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c[1107,1120] [2022-11-16 11:33:17,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:33:17,758 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:33:17,804 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_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c[1107,1120] [2022-11-16 11:33:17,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:33:17,967 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:33:17,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:17 WrapperNode [2022-11-16 11:33:17,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:33:17,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:33:17,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:33:17,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:33:17,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:17" (1/1) ... [2022-11-16 11:33:18,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:17" (1/1) ... [2022-11-16 11:33:18,077 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 404 [2022-11-16 11:33:18,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:33:18,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:33:18,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:33:18,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:33:18,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:17" (1/1) ... [2022-11-16 11:33:18,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:17" (1/1) ... [2022-11-16 11:33:18,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:17" (1/1) ... [2022-11-16 11:33:18,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:17" (1/1) ... [2022-11-16 11:33:18,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:17" (1/1) ... [2022-11-16 11:33:18,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:17" (1/1) ... [2022-11-16 11:33:18,149 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:17" (1/1) ... [2022-11-16 11:33:18,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:17" (1/1) ... [2022-11-16 11:33:18,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:33:18,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:33:18,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:33:18,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:33:18,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:17" (1/1) ... [2022-11-16 11:33:18,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:33:18,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:33:18,208 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:33:18,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:33:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:33:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:33:18,528 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:33:18,531 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:33:19,118 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:33:19,127 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:33:19,128 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:33:19,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:33:19 BoogieIcfgContainer [2022-11-16 11:33:19,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:33:19,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:33:19,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:33:19,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:33:19,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:33:17" (1/3) ... [2022-11-16 11:33:19,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bfe8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:33:19, skipping insertion in model container [2022-11-16 11:33:19,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:33:17" (2/3) ... [2022-11-16 11:33:19,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bfe8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:33:19, skipping insertion in model container [2022-11-16 11:33:19,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:33:19" (3/3) ... [2022-11-16 11:33:19,143 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c [2022-11-16 11:33:19,178 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:33:19,178 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:33:19,257 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:33:19,266 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;@261aed42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:33:19,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:33:19,273 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 11:33:19,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 11:33:19,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:19,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 11:33:19,283 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:33:19,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:19,291 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 11:33:19,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:33:19,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1447753721] [2022-11-16 11:33:19,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:19,309 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 11:33:19,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:33:19,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:19,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:19,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-16 11:33:19,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:33:19,765 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 11:33:19,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:33:19,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:33:19,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1447753721] [2022-11-16 11:33:19,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1447753721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:19,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:19,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:33:19,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002894328] [2022-11-16 11:33:19,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:19,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:33:19,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:33:19,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:33:19,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:33:19,813 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 11:33:19,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:19,947 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 11:33:19,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:33:19,950 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 11:33:19,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:19,960 INFO L225 Difference]: With dead ends: 20 [2022-11-16 11:33:19,960 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 11:33:19,964 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 11:33:19,968 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 11:33:19,969 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 11:33:19,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 11:33:20,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 11:33:20,005 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 11:33:20,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 11:33:20,008 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 11:33:20,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:20,008 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 11:33:20,009 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 11:33:20,009 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 11:33:20,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 11:33:20,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:20,010 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:20,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:20,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:20,225 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:33:20,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:20,226 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 11:33:20,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:33:20,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159700394] [2022-11-16 11:33:20,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:20,228 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 11:33:20,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:33:20,230 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:20,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:20,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-16 11:33:20,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:33:20,821 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 11:33:20,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:33:21,471 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 11:33:21,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:33:21,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159700394] [2022-11-16 11:33:21,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159700394] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:33:21,474 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:33:21,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 11:33:21,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028388719] [2022-11-16 11:33:21,474 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:33:21,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:33:21,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:33:21,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:33:21,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:33:21,483 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 11:33:21,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:21,619 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-16 11:33:21,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:33:21,622 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 11:33:21,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:21,623 INFO L225 Difference]: With dead ends: 16 [2022-11-16 11:33:21,623 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 11:33:21,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:33:21,625 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 11:33:21,626 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 11:33:21,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 11:33:21,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-16 11:33:21,633 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 11:33:21,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-16 11:33:21,635 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-16 11:33:21,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:21,638 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-16 11:33:21,639 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 11:33:21,639 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-16 11:33:21,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 11:33:21,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:21,645 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-16 11:33:21,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:21,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:21,863 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:33:21,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:21,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-16 11:33:21,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:33:21,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279912691] [2022-11-16 11:33:21,867 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:33:21,867 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 11:33:21,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:33:21,871 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:21,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:22,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:33:22,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:33:22,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-16 11:33:22,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:33:22,654 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 11:33:22,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:33:24,737 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 11:33:24,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:33:24,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [279912691] [2022-11-16 11:33:24,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [279912691] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:33:24,743 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:33:24,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-16 11:33:24,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425843603] [2022-11-16 11:33:24,745 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:33:24,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:33:24,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:33:24,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:33:24,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:33:24,751 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 11:33:24,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:24,960 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-16 11:33:24,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:33:24,961 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 11:33:24,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:24,961 INFO L225 Difference]: With dead ends: 19 [2022-11-16 11:33:24,962 INFO L226 Difference]: Without dead ends: 17 [2022-11-16 11:33:24,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:33:24,963 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 11:33:24,964 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 11:33:24,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-16 11:33:24,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-16 11:33:24,969 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 11:33:24,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-16 11:33:24,970 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-16 11:33:24,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:24,971 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-16 11:33:24,971 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 11:33:24,971 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-16 11:33:24,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 11:33:24,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:24,972 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-16 11:33:24,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:25,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:25,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:33:25,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:25,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-16 11:33:25,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:33:25,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141445369] [2022-11-16 11:33:25,190 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:33:25,191 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 11:33:25,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:33:25,192 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:25,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:25,526 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 11:33:25,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:33:25,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-16 11:33:25,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:33:26,100 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 11:33:26,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:33:26,675 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 11:33:26,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:33:26,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2141445369] [2022-11-16 11:33:26,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2141445369] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:33:26,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:33:26,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 11:33:26,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524781384] [2022-11-16 11:33:26,680 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:33:26,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:33:26,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:33:26,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:33:26,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:33:26,682 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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 11:33:26,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:26,768 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-16 11:33:26,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:33:26,770 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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 11:33:26,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:26,771 INFO L225 Difference]: With dead ends: 15 [2022-11-16 11:33:26,771 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 11:33:26,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:33:26,773 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:26,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:33:26,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 11:33:26,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 11:33:26,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:26,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:33:26,775 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-16 11:33:26,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:26,775 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:33:26,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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 11:33:26,775 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:33:26,775 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 11:33:26,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:33:26,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:26,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/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 11:33:26,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 11:33:27,120 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 11:33:27,121 INFO L895 garLoopResultBuilder]: At program point L391(lines 22 392) the Hoare annotation is: false [2022-11-16 11:33:27,121 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 11:33:27,121 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 11:33:27,121 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 11:33:27,122 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-16 11:33:27,122 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-16 11:33:27,122 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-16 11:33:27,122 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-16 11:33:27,123 INFO L895 garLoopResultBuilder]: At program point L113-2(lines 113 390) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_12~0#1| (_ bv1 32))) (.cse2 (= |ULTIMATE.start_main_~state_8~0#1| (_ bv0 8))) (.cse3 (= |ULTIMATE.start_main_~var_7~0#1| (_ bv0 8)))) (or (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 (= (_ bv1 8) |ULTIMATE.start_main_~var_20~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_63~0#1|) .cse3 (= (_ bv1 8) |ULTIMATE.start_main_~state_16~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_59~0#1|)))) [2022-11-16 11:33:27,123 INFO L899 garLoopResultBuilder]: For program point L113-3(lines 113 390) no Hoare annotation was computed. [2022-11-16 11:33:27,127 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-16 11:33:27,130 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:33:27,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:33:27 BoogieIcfgContainer [2022-11-16 11:33:27,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:33:27,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:33:27,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:33:27,148 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:33:27,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:33:19" (3/4) ... [2022-11-16 11:33:27,152 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:33:27,169 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-16 11:33:27,170 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 11:33:27,171 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:33:27,319 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:33:27,319 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:33:27,320 INFO L158 Benchmark]: Toolchain (without parser) took 9977.55ms. Allocated memory was 69.2MB in the beginning and 146.8MB in the end (delta: 77.6MB). Free memory was 51.0MB in the beginning and 78.0MB in the end (delta: -27.0MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2022-11-16 11:33:27,321 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 69.2MB. Free memory was 51.2MB in the beginning and 51.1MB in the end (delta: 57.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:33:27,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 624.04ms. Allocated memory is still 69.2MB. Free memory was 50.7MB in the beginning and 48.2MB in the end (delta: 2.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 11:33:27,322 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.01ms. Allocated memory is still 69.2MB. Free memory was 48.2MB in the beginning and 44.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:33:27,322 INFO L158 Benchmark]: Boogie Preprocessor took 90.43ms. Allocated memory is still 69.2MB. Free memory was 44.6MB in the beginning and 42.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:33:27,338 INFO L158 Benchmark]: RCFGBuilder took 960.69ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 42.0MB in the beginning and 59.1MB in the end (delta: -17.0MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2022-11-16 11:33:27,339 INFO L158 Benchmark]: TraceAbstraction took 8012.78ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 58.2MB in the beginning and 84.5MB in the end (delta: -26.3MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2022-11-16 11:33:27,340 INFO L158 Benchmark]: Witness Printer took 172.31ms. Allocated memory is still 146.8MB. Free memory was 84.5MB in the beginning and 78.0MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 11:33:27,343 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 69.2MB. Free memory was 51.2MB in the beginning and 51.1MB in the end (delta: 57.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 624.04ms. Allocated memory is still 69.2MB. Free memory was 50.7MB in the beginning and 48.2MB in the end (delta: 2.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.01ms. Allocated memory is still 69.2MB. Free memory was 48.2MB in the beginning and 44.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.43ms. Allocated memory is still 69.2MB. Free memory was 44.6MB in the beginning and 42.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 960.69ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 42.0MB in the beginning and 59.1MB in the end (delta: -17.0MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8012.78ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 58.2MB in the beginning and 84.5MB in the end (delta: -26.3MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Witness Printer took 172.31ms. Allocated memory is still 146.8MB. Free memory was 84.5MB in the beginning and 78.0MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.9s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 22 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 15 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 24, 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 43 HoareAnnotationTreeSize, 2 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 68 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 64 ConstructedInterpolants, 21 QuantifiedInterpolants, 1712 SizeOfPredicates, 136 NumberOfNonLiveVariables, 1408 ConjunctsInSsa, 135 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 18/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: ((((1bv8 == mask_SORT_1 && cond == 1bv32) && var_12 == 1bv32) && state_8 == 0bv8) && var_7 == 0bv8) || (((((((1bv8 == mask_SORT_1 && var_12 == 1bv32) && state_8 == 0bv8) && 1bv8 == var_20) && 0bv8 == state_63) && var_7 == 0bv8) && 1bv8 == state_16) && 0bv8 == state_59) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-16 11:33:27,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ad282-a3e1-4853-bf77-90a8c9ab4a40/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE