./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8 --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 00dd9581d22f64efd69082a191ec7029f41a290244aef7e9060b3ab5ce6080c4 --- 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-2329fc7 [2022-12-13 13:42:08,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:42:08,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:42:08,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:42:08,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:42:08,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:42:08,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:42:08,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:42:08,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:42:08,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:42:08,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:42:08,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:42:08,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:42:08,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:42:08,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:42:08,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:42:08,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:42:08,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:42:08,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:42:08,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:42:08,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:42:08,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:42:08,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:42:08,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:42:08,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:42:08,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:42:08,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:42:08,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:42:08,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:42:08,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:42:08,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:42:08,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:42:08,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:42:08,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:42:08,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:42:08,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:42:08,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:42:08,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:42:08,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:42:08,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:42:08,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:42:08,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 13:42:08,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:42:08,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:42:08,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:42:08,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:42:08,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:42:08,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:42:08,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:42:08,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:42:08,729 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:42:08,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:42:08,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:42:08,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:42:08,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:42:08,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:42:08,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:42:08,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:42:08,730 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:42:08,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:42:08,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:42:08,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:42:08,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:42:08,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:42:08,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:42:08,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:42:08,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:42:08,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:42:08,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:42:08,731 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:42:08,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:42:08,732 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:42:08,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:42:08,732 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:42:08,732 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00dd9581d22f64efd69082a191ec7029f41a290244aef7e9060b3ab5ce6080c4 [2022-12-13 13:42:08,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:42:08,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:42:08,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:42:08,942 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:42:08,943 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:42:08,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-func-interl.c [2022-12-13 13:42:11,465 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:42:11,697 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:42:11,698 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-func-interl.c [2022-12-13 13:42:11,709 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/data/c7c7f78d0/335832a357874abf9b7578888f63b14d/FLAGfc7fa20b7 [2022-12-13 13:42:12,036 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/data/c7c7f78d0/335832a357874abf9b7578888f63b14d [2022-12-13 13:42:12,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:42:12,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:42:12,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:42:12,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:42:12,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:42:12,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:42:12" (1/1) ... [2022-12-13 13:42:12,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7baad062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:42:12, skipping insertion in model container [2022-12-13 13:42:12,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:42:12" (1/1) ... [2022-12-13 13:42:12,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:42:12,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:42:12,193 WARN L237 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_57777fed-119c-4b19-91c9-10edcbb8051a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-func-interl.c[1014,1027] [2022-12-13 13:42:12,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:42:12,369 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:42:12,377 WARN L237 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_57777fed-119c-4b19-91c9-10edcbb8051a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-func-interl.c[1014,1027] [2022-12-13 13:42:12,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:42:12,497 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:42:12,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:42:12 WrapperNode [2022-12-13 13:42:12,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:42:12,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:42:12,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:42:12,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:42:12,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:42:12" (1/1) ... [2022-12-13 13:42:12,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:42:12" (1/1) ... [2022-12-13 13:42:12,587 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1481 [2022-12-13 13:42:12,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:42:12,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:42:12,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:42:12,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:42:12,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:42:12" (1/1) ... [2022-12-13 13:42:12,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:42:12" (1/1) ... [2022-12-13 13:42:12,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:42:12" (1/1) ... [2022-12-13 13:42:12,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:42:12" (1/1) ... [2022-12-13 13:42:12,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:42:12" (1/1) ... [2022-12-13 13:42:12,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:42:12" (1/1) ... [2022-12-13 13:42:12,642 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:42:12" (1/1) ... [2022-12-13 13:42:12,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:42:12" (1/1) ... [2022-12-13 13:42:12,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:42:12,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:42:12,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:42:12,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:42:12,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:42:12" (1/1) ... [2022-12-13 13:42:12,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:42:12,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:42:12,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:42:12,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:42:12,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:42:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:42:12,946 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:42:12,947 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:43:54,137 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:43:54,143 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:43:54,143 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 13:43:54,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:43:54 BoogieIcfgContainer [2022-12-13 13:43:54,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:43:54,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:43:54,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:43:54,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:43:54,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:42:12" (1/3) ... [2022-12-13 13:43:54,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776d41b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:43:54, skipping insertion in model container [2022-12-13 13:43:54,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:42:12" (2/3) ... [2022-12-13 13:43:54,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776d41b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:43:54, skipping insertion in model container [2022-12-13 13:43:54,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:43:54" (3/3) ... [2022-12-13 13:43:54,150 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.krebs.3.prop1-func-interl.c [2022-12-13 13:43:54,164 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:43:54,164 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:43:54,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:43:54,202 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;@4c0ffe37, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:43:54,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 13:43:54,205 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) [2022-12-13 13:43:54,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 13:43:54,209 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:43:54,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 13:43:54,209 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:43:54,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:54,213 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 13:43:54,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:43:54,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874923099] [2022-12-13 13:43:54,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:43:54,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:43:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:54,436 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:43:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:54,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:43:54,577 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:43:54,578 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 13:43:54,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:43:54,585 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 13:43:54,589 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:43:54,610 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 13:43:54,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:43:54 BoogieIcfgContainer [2022-12-13 13:43:54,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:43:54,620 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:43:54,620 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:43:54,620 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:43:54,621 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:43:54" (3/4) ... [2022-12-13 13:43:54,624 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:43:54,624 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:43:54,625 INFO L158 Benchmark]: Toolchain (without parser) took 102585.53ms. Allocated memory was 127.9MB in the beginning and 903.9MB in the end (delta: 775.9MB). Free memory was 91.8MB in the beginning and 330.3MB in the end (delta: -238.5MB). Peak memory consumption was 538.9MB. Max. memory is 16.1GB. [2022-12-13 13:43:54,626 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 127.9MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:43:54,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.30ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 91.8MB in the beginning and 130.5MB in the end (delta: -38.7MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2022-12-13 13:43:54,627 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.82ms. Allocated memory is still 174.1MB. Free memory was 130.5MB in the beginning and 112.9MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 13:43:54,628 INFO L158 Benchmark]: Boogie Preprocessor took 73.19ms. Allocated memory is still 174.1MB. Free memory was 112.9MB in the beginning and 104.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 13:43:54,628 INFO L158 Benchmark]: RCFGBuilder took 101483.31ms. Allocated memory was 174.1MB in the beginning and 903.9MB in the end (delta: 729.8MB). Free memory was 104.6MB in the beginning and 372.2MB in the end (delta: -267.6MB). Peak memory consumption was 528.6MB. Max. memory is 16.1GB. [2022-12-13 13:43:54,629 INFO L158 Benchmark]: TraceAbstraction took 473.85ms. Allocated memory is still 903.9MB. Free memory was 371.2MB in the beginning and 330.3MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-12-13 13:43:54,629 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 903.9MB. Free memory is still 330.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:43:54,632 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 127.9MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.30ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 91.8MB in the beginning and 130.5MB in the end (delta: -38.7MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.82ms. Allocated memory is still 174.1MB. Free memory was 130.5MB in the beginning and 112.9MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.19ms. Allocated memory is still 174.1MB. Free memory was 112.9MB in the beginning and 104.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 101483.31ms. Allocated memory was 174.1MB in the beginning and 903.9MB in the end (delta: 729.8MB). Free memory was 104.6MB in the beginning and 372.2MB in the end (delta: -267.6MB). Peak memory consumption was 528.6MB. Max. memory is 16.1GB. * TraceAbstraction took 473.85ms. Allocated memory is still 903.9MB. Free memory was 371.2MB in the beginning and 330.3MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 903.9MB. Free memory is still 330.3MB. 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 210, overapproximation of bitwiseOr at line 205, overapproximation of bitwiseAnd at line 172. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_30 = 0; [L39] const SORT_3 var_75 = 0; [L40] const SORT_4 var_77 = 50; [L41] const SORT_2 var_81 = 10; [L42] const SORT_4 var_85 = 1; [L43] const SORT_2 var_91 = 4; [L44] const SORT_4 var_93 = 2; [L45] const SORT_2 var_117 = 12; [L46] const SORT_2 var_140 = 2; [L47] const SORT_2 var_181 = 15; [L49] SORT_1 input_82; [L50] SORT_1 input_92; [L51] SORT_1 input_98; [L52] SORT_1 input_122; [L53] SORT_1 input_125; [L54] SORT_1 input_126; [L55] SORT_1 input_127; [L56] SORT_1 input_128; [L57] SORT_1 input_147; [L58] SORT_1 input_148; [L59] SORT_1 input_170; [L60] SORT_1 input_174; [L61] SORT_1 input_216; [L62] SORT_1 input_219; [L63] SORT_1 input_240; [L64] SORT_1 input_261; [L66] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L67] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L68] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L69] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L70] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L71] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L72] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L73] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L74] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L75] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L76] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L77] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L78] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L92] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L93] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L94] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L95] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L98] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L99] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] SORT_2 init_7_arg_1 = var_5; [L102] state_6 = init_7_arg_1 [L103] SORT_2 init_9_arg_1 = var_5; [L104] state_8 = init_9_arg_1 [L105] SORT_2 init_11_arg_1 = var_5; [L106] state_10 = init_11_arg_1 [L107] SORT_2 init_13_arg_1 = var_5; [L108] state_12 = init_13_arg_1 [L109] SORT_2 init_15_arg_1 = var_5; [L110] state_14 = init_15_arg_1 [L111] SORT_2 init_17_arg_1 = var_5; [L112] state_16 = init_17_arg_1 [L113] SORT_2 init_19_arg_1 = var_5; [L114] state_18 = init_19_arg_1 [L115] SORT_2 init_21_arg_1 = var_5; [L116] state_20 = init_21_arg_1 [L117] SORT_2 init_23_arg_1 = var_5; [L118] state_22 = init_23_arg_1 [L119] SORT_2 init_25_arg_1 = var_5; [L120] state_24 = init_25_arg_1 [L121] SORT_2 init_27_arg_1 = var_5; [L122] state_26 = init_27_arg_1 [L123] SORT_2 init_29_arg_1 = var_5; [L124] state_28 = init_29_arg_1 [L125] SORT_1 init_32_arg_1 = var_30; [L126] state_31 = init_32_arg_1 [L127] SORT_1 init_34_arg_1 = var_30; [L128] state_33 = init_34_arg_1 [L129] SORT_1 init_36_arg_1 = var_30; [L130] state_35 = init_36_arg_1 [L131] SORT_1 init_38_arg_1 = var_30; [L132] state_37 = init_38_arg_1 [L133] SORT_1 init_40_arg_1 = var_30; [L134] state_39 = init_40_arg_1 [L135] SORT_1 init_42_arg_1 = var_30; [L136] state_41 = init_42_arg_1 [L137] SORT_1 init_44_arg_1 = var_30; [L138] state_43 = init_44_arg_1 [L139] SORT_1 init_46_arg_1 = var_30; [L140] state_45 = init_46_arg_1 [L141] SORT_1 init_48_arg_1 = var_30; [L142] state_47 = init_48_arg_1 [L143] SORT_1 init_50_arg_1 = var_30; [L144] state_49 = init_50_arg_1 [L145] SORT_1 init_52_arg_1 = var_30; [L146] state_51 = init_52_arg_1 [L147] SORT_1 init_54_arg_1 = var_30; [L148] state_53 = init_54_arg_1 [L149] SORT_1 init_56_arg_1 = var_30; [L150] state_55 = init_56_arg_1 [L151] SORT_1 init_58_arg_1 = var_30; [L152] state_57 = init_58_arg_1 [L153] SORT_1 init_60_arg_1 = var_30; [L154] state_59 = init_60_arg_1 [L155] SORT_1 init_62_arg_1 = var_30; [L156] state_61 = init_62_arg_1 [L157] SORT_1 init_64_arg_1 = var_30; [L158] state_63 = init_64_arg_1 [L159] SORT_1 init_66_arg_1 = var_30; [L160] state_65 = init_66_arg_1 [L161] SORT_1 init_68_arg_1 = var_30; [L162] state_67 = init_68_arg_1 [L163] SORT_1 init_70_arg_1 = var_30; [L164] state_69 = init_70_arg_1 [L165] SORT_1 init_72_arg_1 = var_30; [L166] state_71 = init_72_arg_1 [L167] SORT_1 init_74_arg_1 = var_30; [L168] state_73 = init_74_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_8=0, var_117=12, var_140=2, var_181=15, var_30=0, var_5=0, var_75=0, var_77=50, var_81=10, var_85=1, var_91=4, var_93=2] [L171] input_82 = __VERIFIER_nondet_uchar() [L172] input_82 = input_82 & mask_SORT_1 [L173] input_92 = __VERIFIER_nondet_uchar() [L174] input_92 = input_92 & mask_SORT_1 [L175] input_98 = __VERIFIER_nondet_uchar() [L176] input_98 = input_98 & mask_SORT_1 [L177] input_122 = __VERIFIER_nondet_uchar() [L178] input_122 = input_122 & mask_SORT_1 [L179] input_125 = __VERIFIER_nondet_uchar() [L180] input_125 = input_125 & mask_SORT_1 [L181] input_126 = __VERIFIER_nondet_uchar() [L182] input_126 = input_126 & mask_SORT_1 [L183] input_127 = __VERIFIER_nondet_uchar() [L184] input_127 = input_127 & mask_SORT_1 [L185] input_128 = __VERIFIER_nondet_uchar() [L186] input_128 = input_128 & mask_SORT_1 [L187] input_147 = __VERIFIER_nondet_uchar() [L188] input_147 = input_147 & mask_SORT_1 [L189] input_148 = __VERIFIER_nondet_uchar() [L190] input_148 = input_148 & mask_SORT_1 [L191] input_170 = __VERIFIER_nondet_uchar() [L192] input_170 = input_170 & mask_SORT_1 [L193] input_174 = __VERIFIER_nondet_uchar() [L194] input_174 = input_174 & mask_SORT_1 [L195] input_216 = __VERIFIER_nondet_uchar() [L196] input_216 = input_216 & mask_SORT_1 [L197] input_219 = __VERIFIER_nondet_uchar() [L198] input_219 = input_219 & mask_SORT_1 [L199] input_240 = __VERIFIER_nondet_uchar() [L200] input_261 = __VERIFIER_nondet_uchar() [L203] SORT_3 var_76_arg_0 = var_75; [L204] SORT_2 var_76_arg_1 = state_28; [L205] SORT_4 var_76 = ((SORT_4)var_76_arg_0 << 8) | var_76_arg_1; [L206] var_76 = var_76 & mask_SORT_4 [L207] SORT_4 var_78_arg_0 = var_76; [L208] SORT_4 var_78_arg_1 = var_77; [L209] SORT_1 var_78 = var_78_arg_0 <= var_78_arg_1; [L210] SORT_1 var_79_arg_0 = ~state_73; [L211] var_79_arg_0 = var_79_arg_0 & mask_SORT_1 [L212] SORT_1 var_79_arg_1 = ~var_78; [L213] var_79_arg_1 = var_79_arg_1 & mask_SORT_1 [L214] SORT_1 var_79 = var_79_arg_0 & var_79_arg_1; [L215] var_79 = var_79 & mask_SORT_1 [L216] SORT_1 bad_80_arg_0 = var_79; [L217] CALL __VERIFIER_assert(!(bad_80_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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 13:43:54,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8 --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 00dd9581d22f64efd69082a191ec7029f41a290244aef7e9060b3ab5ce6080c4 --- 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-2329fc7 [2022-12-13 13:43:56,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:43:56,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:43:56,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:43:56,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:43:56,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:43:56,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:43:56,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:43:56,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:43:56,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:43:56,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:43:56,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:43:56,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:43:56,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:43:56,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:43:56,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:43:56,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:43:56,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:43:56,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:43:56,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:43:56,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:43:56,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:43:56,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:43:56,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:43:56,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:43:56,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:43:56,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:43:56,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:43:56,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:43:56,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:43:56,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:43:56,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:43:56,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:43:56,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:43:56,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:43:56,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:43:56,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:43:56,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:43:56,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:43:56,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:43:56,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:43:56,207 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 13:43:56,223 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:43:56,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:43:56,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:43:56,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:43:56,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:43:56,224 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:43:56,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:43:56,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:43:56,225 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:43:56,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:43:56,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:43:56,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:43:56,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:43:56,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:43:56,226 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 13:43:56,226 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 13:43:56,226 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 13:43:56,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:43:56,226 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:43:56,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:43:56,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:43:56,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:43:56,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:43:56,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:43:56,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:43:56,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:43:56,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:43:56,227 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 13:43:56,227 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 13:43:56,228 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:43:56,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:43:56,228 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:43:56,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:43:56,228 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 13:43:56,228 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:43:56,228 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00dd9581d22f64efd69082a191ec7029f41a290244aef7e9060b3ab5ce6080c4 [2022-12-13 13:43:56,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:43:56,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:43:56,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:43:56,445 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:43:56,445 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:43:56,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-func-interl.c [2022-12-13 13:43:58,965 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:43:59,170 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:43:59,170 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-func-interl.c [2022-12-13 13:43:59,183 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/data/e9d76be60/88b57509b73f4119acd68ec405422e6b/FLAG47cdf85a8 [2022-12-13 13:43:59,194 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/data/e9d76be60/88b57509b73f4119acd68ec405422e6b [2022-12-13 13:43:59,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:43:59,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:43:59,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:43:59,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:43:59,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:43:59,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:43:59" (1/1) ... [2022-12-13 13:43:59,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2978f180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:59, skipping insertion in model container [2022-12-13 13:43:59,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:43:59" (1/1) ... [2022-12-13 13:43:59,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:43:59,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:43:59,363 WARN L237 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_57777fed-119c-4b19-91c9-10edcbb8051a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-func-interl.c[1014,1027] [2022-12-13 13:43:59,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:43:59,514 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:43:59,522 WARN L237 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_57777fed-119c-4b19-91c9-10edcbb8051a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-func-interl.c[1014,1027] [2022-12-13 13:43:59,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:43:59,615 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:43:59,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:59 WrapperNode [2022-12-13 13:43:59,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:43:59,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:43:59,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:43:59,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:43:59,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:59" (1/1) ... [2022-12-13 13:43:59,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:59" (1/1) ... [2022-12-13 13:43:59,690 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1481 [2022-12-13 13:43:59,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:43:59,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:43:59,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:43:59,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:43:59,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:59" (1/1) ... [2022-12-13 13:43:59,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:59" (1/1) ... [2022-12-13 13:43:59,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:59" (1/1) ... [2022-12-13 13:43:59,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:59" (1/1) ... [2022-12-13 13:43:59,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:59" (1/1) ... [2022-12-13 13:43:59,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:59" (1/1) ... [2022-12-13 13:43:59,742 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:59" (1/1) ... [2022-12-13 13:43:59,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:59" (1/1) ... [2022-12-13 13:43:59,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:43:59,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:43:59,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:43:59,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:43:59,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:59" (1/1) ... [2022-12-13 13:43:59,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:43:59,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:59,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:59,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:43:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:43:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:44:00,059 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:44:00,060 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:44:01,252 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:44:01,256 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:44:01,257 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 13:44:01,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:44:01 BoogieIcfgContainer [2022-12-13 13:44:01,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:44:01,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:44:01,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:44:01,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:44:01,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:43:59" (1/3) ... [2022-12-13 13:44:01,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3536f14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:44:01, skipping insertion in model container [2022-12-13 13:44:01,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:59" (2/3) ... [2022-12-13 13:44:01,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3536f14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:44:01, skipping insertion in model container [2022-12-13 13:44:01,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:44:01" (3/3) ... [2022-12-13 13:44:01,264 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.krebs.3.prop1-func-interl.c [2022-12-13 13:44:01,278 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:44:01,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:44:01,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:44:01,314 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;@1fd6a3eb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:44:01,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 13:44:01,317 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) [2022-12-13 13:44:01,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 13:44:01,321 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:44:01,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 13:44:01,321 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:44:01,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:44:01,325 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 13:44:01,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:44:01,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779616410] [2022-12-13 13:44:01,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:44:01,334 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 [2022-12-13 13:44:01,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:44:01,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 13:44:01,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:44:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:44:01,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 13:44:01,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:44:01,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:44:01,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:44:01,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:44:01,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779616410] [2022-12-13 13:44:01,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779616410] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:44:01,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:44:01,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:44:01,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169576294] [2022-12-13 13:44:01,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:44:01,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:44:01,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:44:01,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:44:01,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:44:01,712 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) [2022-12-13 13:44:01,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:44:01,932 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-13 13:44:01,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:44:01,934 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 [2022-12-13 13:44:01,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:44:01,939 INFO L225 Difference]: With dead ends: 20 [2022-12-13 13:44:01,939 INFO L226 Difference]: Without dead ends: 11 [2022-12-13 13:44:01,941 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 [2022-12-13 13:44:01,943 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 13:44:01,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 13:44:01,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-13 13:44:01,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-13 13:44:01,963 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) [2022-12-13 13:44:01,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-13 13:44:01,964 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-13 13:44:01,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:44:01,964 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-13 13:44:01,964 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) [2022-12-13 13:44:01,964 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-13 13:44:01,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 13:44:01,965 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:44:01,965 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 13:44:01,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:44:02,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:44:02,168 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:44:02,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:44:02,170 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-13 13:44:02,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:44:02,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628181487] [2022-12-13 13:44:02,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:44:02,194 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 [2022-12-13 13:44:02,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:44:02,199 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 13:44:02,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:44:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:44:02,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 1303 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 13:44:02,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:44:03,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:44:03,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:44:03,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:44:03,959 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:44:03,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628181487] [2022-12-13 13:44:03,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628181487] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:44:03,960 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:44:03,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-12-13 13:44:03,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187481522] [2022-12-13 13:44:03,960 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:44:03,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:44:03,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:44:03,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:44:03,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:44:03,963 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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) [2022-12-13 13:44:06,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 13:44:07,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:44:07,850 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-12-13 13:44:07,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:44:07,851 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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 [2022-12-13 13:44:07,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:44:07,851 INFO L225 Difference]: With dead ends: 19 [2022-12-13 13:44:07,851 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 13:44:07,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-12-13 13:44:07,852 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-13 13:44:07,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 18 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-12-13 13:44:07,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 13:44:07,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-13 13:44:07,855 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) [2022-12-13 13:44:07,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-13 13:44:07,856 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-12-13 13:44:07,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:44:07,856 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-13 13:44:07,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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) [2022-12-13 13:44:07,856 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-13 13:44:07,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 13:44:07,856 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:44:07,857 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-12-13 13:44:07,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 13:44:08,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:44:08,059 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:44:08,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:44:08,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2022-12-13 13:44:08,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:44:08,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430885778] [2022-12-13 13:44:08,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:44:08,070 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 [2022-12-13 13:44:08,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:44:08,074 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 13:44:08,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:44:09,131 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:44:09,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:44:09,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 3669 conjuncts, 56 conjunts are in the unsatisfiable core [2022-12-13 13:44:09,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:44:09,972 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:44:09,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:44:27,008 WARN L233 SmtUtils]: Spent 14.66s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 13:44:27,036 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:44:27,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:44:27,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430885778] [2022-12-13 13:44:27,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430885778] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:44:27,037 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:44:27,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2022-12-13 13:44:27,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100219076] [2022-12-13 13:44:27,037 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:44:27,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 13:44:27,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:44:27,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 13:44:27,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2022-12-13 13:44:27,039 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:44:36,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:44:36,314 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2022-12-13 13:44:36,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 13:44:36,315 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-13 13:44:36,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:44:36,315 INFO L225 Difference]: With dead ends: 31 [2022-12-13 13:44:36,315 INFO L226 Difference]: Without dead ends: 29 [2022-12-13 13:44:36,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 21.9s TimeCoverageRelationStatistics Valid=289, Invalid=581, Unknown=0, NotChecked=0, Total=870 [2022-12-13 13:44:36,317 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 47 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-13 13:44:36,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 24 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-12-13 13:44:36,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-13 13:44:36,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-12-13 13:44:36,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 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) [2022-12-13 13:44:36,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-12-13 13:44:36,328 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2022-12-13 13:44:36,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:44:36,328 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-12-13 13:44:36,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:44:36,328 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-12-13 13:44:36,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-13 13:44:36,329 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:44:36,329 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1] [2022-12-13 13:44:36,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 13:44:36,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:44:36,531 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:44:36,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:44:36,533 INFO L85 PathProgramCache]: Analyzing trace with hash -752690141, now seen corresponding path program 3 times [2022-12-13 13:44:36,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:44:36,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [200299204] [2022-12-13 13:44:36,549 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 13:44:36,549 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 [2022-12-13 13:44:36,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:44:36,553 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 13:44:36,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:44:39,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-12-13 13:44:39,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:44:39,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 8401 conjuncts, 121 conjunts are in the unsatisfiable core [2022-12-13 13:44:39,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:44:44,013 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:44:44,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:45:04,584 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:45:04,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:45:04,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [200299204] [2022-12-13 13:45:04,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [200299204] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:45:04,584 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:45:04,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2022-12-13 13:45:04,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111266137] [2022-12-13 13:45:04,585 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:45:04,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-12-13 13:45:04,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:45:04,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-12-13 13:45:04,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=354, Invalid=906, Unknown=0, NotChecked=0, Total=1260 [2022-12-13 13:45:04,586 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 36 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 36 states have internal predecessors, (50), 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) [2022-12-13 13:45:24,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 13:45:26,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 13:45:28,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 13:45:30,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 13:45:32,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 13:45:43,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:45:45,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:45:48,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:45:49,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:45:51,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:45:53,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:46:02,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:46:05,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:46:07,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:46:09,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:46:11,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:46:19,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:46:22,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:46:24,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:46:33,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:46:36,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:46:41,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:46:41,732 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2022-12-13 13:46:41,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-13 13:46:41,732 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 36 states have internal predecessors, (50), 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 26 [2022-12-13 13:46:41,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:46:41,733 INFO L225 Difference]: With dead ends: 55 [2022-12-13 13:46:41,734 INFO L226 Difference]: Without dead ends: 53 [2022-12-13 13:46:41,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1239 ImplicationChecksByTransitivity, 63.1s TimeCoverageRelationStatistics Valid=1243, Invalid=2789, Unknown=0, NotChecked=0, Total=4032 [2022-12-13 13:46:41,735 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 111 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 73 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.5s IncrementalHoareTripleChecker+Time [2022-12-13 13:46:41,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 30 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 85 Invalid, 16 Unknown, 0 Unchecked, 53.5s Time] [2022-12-13 13:46:41,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-13 13:46:41,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2022-12-13 13:46:41,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 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) [2022-12-13 13:46:41,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2022-12-13 13:46:41,768 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 26 [2022-12-13 13:46:41,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:46:41,768 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2022-12-13 13:46:41,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 36 states have internal predecessors, (50), 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) [2022-12-13 13:46:41,769 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2022-12-13 13:46:41,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-13 13:46:41,769 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:46:41,769 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 1, 1, 1, 1] [2022-12-13 13:46:41,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 13:46:41,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:46:41,971 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:46:41,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:46:41,972 INFO L85 PathProgramCache]: Analyzing trace with hash -779438813, now seen corresponding path program 4 times [2022-12-13 13:46:42,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:46:42,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033461462] [2022-12-13 13:46:42,004 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 13:46:42,004 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 [2022-12-13 13:46:42,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:46:42,006 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 13:46:42,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57777fed-119c-4b19-91c9-10edcbb8051a/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 13:46:47,528 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 13:46:47,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:46:47,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 17865 conjuncts, 232 conjunts are in the unsatisfiable core [2022-12-13 13:46:47,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:47:43,279 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:47:43,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:50:38,664 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 3264 DAG size of output: 1976 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 13:51:05,083 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification that was a NOOP. DAG size: 1980 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 13:51:30,999 WARN L233 SmtUtils]: Spent 8.08s on a formula simplification. DAG size of input: 3872 DAG size of output: 2321 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 13:52:06,711 WARN L233 SmtUtils]: Spent 7.49s on a formula simplification that was a NOOP. DAG size: 2325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 13:52:40,534 WARN L233 SmtUtils]: Spent 9.49s on a formula simplification. DAG size of input: 4560 DAG size of output: 2616 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 13:53:26,209 WARN L233 SmtUtils]: Spent 9.70s on a formula simplification that was a NOOP. DAG size: 2620 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 13:53:26,471 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:53:26,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:53:26,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033461462] [2022-12-13 13:53:26,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033461462] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:53:26,472 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:53:26,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 70 [2022-12-13 13:53:26,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110232058] [2022-12-13 13:53:26,472 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:53:26,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-12-13 13:53:26,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:53:26,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-12-13 13:53:26,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1422, Invalid=3405, Unknown=3, NotChecked=0, Total=4830 [2022-12-13 13:53:26,474 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 70 states, 70 states have (on average 1.4) internal successors, (98), 70 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) [2022-12-13 13:55:55,684 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 3408 DAG size of output: 1835 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 13:56:15,565 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 3284 DAG size of output: 1828 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 13:56:34,303 WARN L233 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 3219 DAG size of output: 1906 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)