./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a --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 16a45ff550c912548b6ea863a62264e11925b5b01e108e129370b7b6a2adee8d --- 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-b5237d8 [2022-11-21 16:29:05,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:29:05,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:29:05,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:29:05,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:29:05,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:29:05,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:29:05,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:29:05,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:29:05,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:29:05,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:29:05,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:29:05,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:29:05,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:29:05,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:29:05,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:29:05,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:29:05,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:29:05,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:29:05,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:29:05,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:29:05,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:29:05,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:29:05,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:29:05,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:29:05,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:29:05,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:29:05,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:29:05,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:29:05,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:29:05,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:29:05,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:29:05,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:29:05,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:29:05,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:29:05,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:29:05,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:29:05,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:29:05,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:29:05,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:29:05,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:29:05,606 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 16:29:05,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:29:05,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:29:05,650 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:29:05,650 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:29:05,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:29:05,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:29:05,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:29:05,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:29:05,653 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:29:05,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:29:05,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:29:05,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:29:05,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:29:05,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:29:05,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:29:05,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:29:05,656 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:29:05,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:29:05,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:29:05,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:29:05,657 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:29:05,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:29:05,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:29:05,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:29:05,658 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:29:05,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:29:05,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:29:05,659 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:29:05,660 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:29:05,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:29:05,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16a45ff550c912548b6ea863a62264e11925b5b01e108e129370b7b6a2adee8d [2022-11-21 16:29:05,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:29:06,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:29:06,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:29:06,032 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:29:06,033 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:29:06,034 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2022-11-21 16:29:09,086 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:29:09,495 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:29:09,504 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2022-11-21 16:29:09,518 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/data/3f5978bd3/b75e6cf2f0b54a3b867374cd0a2c48aa/FLAG4da7c196c [2022-11-21 16:29:09,538 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/data/3f5978bd3/b75e6cf2f0b54a3b867374cd0a2c48aa [2022-11-21 16:29:09,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:29:09,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:29:09,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:29:09,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:29:09,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:29:09,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:29:09" (1/1) ... [2022-11-21 16:29:09,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f103b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:09, skipping insertion in model container [2022-11-21 16:29:09,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:29:09" (1/1) ... [2022-11-21 16:29:09,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:29:09,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:29:09,807 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_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1014,1027] [2022-11-21 16:29:10,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:29:10,080 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:29:10,091 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_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1014,1027] [2022-11-21 16:29:10,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:29:10,289 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:29:10,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:10 WrapperNode [2022-11-21 16:29:10,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:29:10,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:29:10,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:29:10,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:29:10,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:10" (1/1) ... [2022-11-21 16:29:10,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:10" (1/1) ... [2022-11-21 16:29:10,430 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1053 [2022-11-21 16:29:10,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:29:10,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:29:10,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:29:10,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:29:10,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:10" (1/1) ... [2022-11-21 16:29:10,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:10" (1/1) ... [2022-11-21 16:29:10,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:10" (1/1) ... [2022-11-21 16:29:10,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:10" (1/1) ... [2022-11-21 16:29:10,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:10" (1/1) ... [2022-11-21 16:29:10,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:10" (1/1) ... [2022-11-21 16:29:10,502 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:10" (1/1) ... [2022-11-21 16:29:10,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:10" (1/1) ... [2022-11-21 16:29:10,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:29:10,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:29:10,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:29:10,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:29:10,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:10" (1/1) ... [2022-11-21 16:29:10,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:29:10,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:29:10,559 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:29:10,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:29:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:29:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:29:10,929 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:29:10,931 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:30:06,786 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:30:06,807 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:30:06,817 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:30:06,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:30:06 BoogieIcfgContainer [2022-11-21 16:30:06,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:30:06,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:30:06,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:30:06,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:30:06,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:29:09" (1/3) ... [2022-11-21 16:30:06,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c78ec8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:30:06, skipping insertion in model container [2022-11-21 16:30:06,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:10" (2/3) ... [2022-11-21 16:30:06,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c78ec8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:30:06, skipping insertion in model container [2022-11-21 16:30:06,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:30:06" (3/3) ... [2022-11-21 16:30:06,833 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bakery.2.prop1-func-interl.c [2022-11-21 16:30:06,852 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:30:06,852 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:30:06,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:30:06,902 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;@2717b139, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:30:06,902 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:30:06,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:06,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 16:30:06,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:30:06,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 16:30:06,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:30:06,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:06,921 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 16:30:06,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:06,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549602808] [2022-11-21 16:30:06,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:06,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:07,296 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:30:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:07,500 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:30:07,502 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:30:07,503 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 16:30:07,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:30:07,510 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 16:30:07,514 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:30:07,541 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-21 16:30:07,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:30:07 BoogieIcfgContainer [2022-11-21 16:30:07,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:30:07,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:30:07,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:30:07,559 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:30:07,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:30:06" (3/4) ... [2022-11-21 16:30:07,563 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:30:07,564 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:30:07,565 INFO L158 Benchmark]: Toolchain (without parser) took 58020.38ms. Allocated memory was 199.2MB in the beginning and 736.1MB in the end (delta: 536.9MB). Free memory was 165.5MB in the beginning and 667.8MB in the end (delta: -502.3MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2022-11-21 16:30:07,566 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 140.5MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:30:07,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 744.52ms. Allocated memory is still 199.2MB. Free memory was 165.5MB in the beginning and 127.9MB in the end (delta: 37.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-21 16:30:07,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 137.30ms. Allocated memory is still 199.2MB. Free memory was 127.2MB in the beginning and 114.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 16:30:07,569 INFO L158 Benchmark]: Boogie Preprocessor took 92.48ms. Allocated memory is still 199.2MB. Free memory was 114.6MB in the beginning and 107.7MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 16:30:07,575 INFO L158 Benchmark]: RCFGBuilder took 56295.34ms. Allocated memory was 199.2MB in the beginning and 736.1MB in the end (delta: 536.9MB). Free memory was 107.7MB in the beginning and 271.9MB in the end (delta: -164.2MB). Peak memory consumption was 402.7MB. Max. memory is 16.1GB. [2022-11-21 16:30:07,577 INFO L158 Benchmark]: TraceAbstraction took 734.45ms. Allocated memory is still 736.1MB. Free memory was 271.3MB in the beginning and 667.8MB in the end (delta: -396.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:30:07,577 INFO L158 Benchmark]: Witness Printer took 5.67ms. Allocated memory is still 736.1MB. Free memory is still 667.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:30:07,586 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 140.5MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 744.52ms. Allocated memory is still 199.2MB. Free memory was 165.5MB in the beginning and 127.9MB in the end (delta: 37.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 137.30ms. Allocated memory is still 199.2MB. Free memory was 127.2MB in the beginning and 114.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.48ms. Allocated memory is still 199.2MB. Free memory was 114.6MB in the beginning and 107.7MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 56295.34ms. Allocated memory was 199.2MB in the beginning and 736.1MB in the end (delta: 536.9MB). Free memory was 107.7MB in the beginning and 271.9MB in the end (delta: -164.2MB). Peak memory consumption was 402.7MB. Max. memory is 16.1GB. * TraceAbstraction took 734.45ms. Allocated memory is still 736.1MB. Free memory was 271.3MB in the beginning and 667.8MB in the end (delta: -396.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.67ms. Allocated memory is still 736.1MB. Free memory is still 667.8MB. 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 170, overapproximation of bitwiseAnd at line 126. 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_22 = 0; [L39] const SORT_4 var_45 = 1; [L40] const SORT_4 var_46 = 0; [L41] const SORT_2 var_54 = 0; [L42] const SORT_2 var_56 = 1; [L43] const SORT_3 var_66 = 0; [L44] const SORT_4 var_153 = 2; [L45] const SORT_2 var_165 = 2; [L46] const SORT_4 var_167 = 6; [L48] SORT_1 input_53; [L49] SORT_1 input_55; [L50] SORT_1 input_60; [L51] SORT_1 input_61; [L52] SORT_1 input_65; [L53] SORT_1 input_73; [L54] SORT_1 input_80; [L55] SORT_1 input_84; [L56] SORT_1 input_85; [L57] SORT_1 input_97; [L58] SORT_1 input_101; [L59] SORT_1 input_102; [L60] SORT_1 input_121; [L61] SORT_1 input_124; [L62] SORT_1 input_140; [L63] SORT_1 input_143; [L65] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L66] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L67] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L68] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L69] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L70] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L71] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L72] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L73] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_2 init_7_arg_1 = var_5; [L86] state_6 = init_7_arg_1 [L87] SORT_2 init_9_arg_1 = var_5; [L88] state_8 = init_9_arg_1 [L89] SORT_2 init_11_arg_1 = var_5; [L90] state_10 = init_11_arg_1 [L91] SORT_2 init_13_arg_1 = var_5; [L92] state_12 = init_13_arg_1 [L93] SORT_2 init_15_arg_1 = var_5; [L94] state_14 = init_15_arg_1 [L95] SORT_2 init_17_arg_1 = var_5; [L96] state_16 = init_17_arg_1 [L97] SORT_2 init_19_arg_1 = var_5; [L98] state_18 = init_19_arg_1 [L99] SORT_2 init_21_arg_1 = var_5; [L100] state_20 = init_21_arg_1 [L101] SORT_1 init_24_arg_1 = var_22; [L102] state_23 = init_24_arg_1 [L103] SORT_1 init_26_arg_1 = var_22; [L104] state_25 = init_26_arg_1 [L105] SORT_1 init_28_arg_1 = var_22; [L106] state_27 = init_28_arg_1 [L107] SORT_1 init_30_arg_1 = var_22; [L108] state_29 = init_30_arg_1 [L109] SORT_1 init_32_arg_1 = var_22; [L110] state_31 = init_32_arg_1 [L111] SORT_1 init_34_arg_1 = var_22; [L112] state_33 = init_34_arg_1 [L113] SORT_1 init_36_arg_1 = var_22; [L114] state_35 = init_36_arg_1 [L115] SORT_1 init_38_arg_1 = var_22; [L116] state_37 = init_38_arg_1 [L117] SORT_1 init_40_arg_1 = var_22; [L118] state_39 = init_40_arg_1 [L119] SORT_1 init_42_arg_1 = var_22; [L120] state_41 = init_42_arg_1 [L121] SORT_1 init_44_arg_1 = var_22; [L122] state_43 = init_44_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_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_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_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_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_5=0, var_54=0, var_56=1, var_66=0] [L125] input_53 = __VERIFIER_nondet_uchar() [L126] input_53 = input_53 & mask_SORT_1 [L127] input_55 = __VERIFIER_nondet_uchar() [L128] input_55 = input_55 & mask_SORT_1 [L129] input_60 = __VERIFIER_nondet_uchar() [L130] input_60 = input_60 & mask_SORT_1 [L131] input_61 = __VERIFIER_nondet_uchar() [L132] input_61 = input_61 & mask_SORT_1 [L133] input_65 = __VERIFIER_nondet_uchar() [L134] input_65 = input_65 & mask_SORT_1 [L135] input_73 = __VERIFIER_nondet_uchar() [L136] input_73 = input_73 & mask_SORT_1 [L137] input_80 = __VERIFIER_nondet_uchar() [L138] input_80 = input_80 & mask_SORT_1 [L139] input_84 = __VERIFIER_nondet_uchar() [L140] input_84 = input_84 & mask_SORT_1 [L141] input_85 = __VERIFIER_nondet_uchar() [L142] input_85 = input_85 & mask_SORT_1 [L143] input_97 = __VERIFIER_nondet_uchar() [L144] input_97 = input_97 & mask_SORT_1 [L145] input_101 = __VERIFIER_nondet_uchar() [L146] input_101 = input_101 & mask_SORT_1 [L147] input_102 = __VERIFIER_nondet_uchar() [L148] input_102 = input_102 & mask_SORT_1 [L149] input_121 = __VERIFIER_nondet_uchar() [L150] input_124 = __VERIFIER_nondet_uchar() [L151] input_140 = __VERIFIER_nondet_uchar() [L152] input_143 = __VERIFIER_nondet_uchar() [L155] SORT_1 var_47_arg_0 = state_31; [L156] SORT_4 var_47_arg_1 = var_45; [L157] SORT_4 var_47_arg_2 = var_46; [L158] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L159] SORT_1 var_48_arg_0 = state_41; [L160] SORT_4 var_48_arg_1 = var_45; [L161] SORT_4 var_48_arg_2 = var_46; [L162] SORT_4 var_48 = var_48_arg_0 ? var_48_arg_1 : var_48_arg_2; [L163] SORT_4 var_49_arg_0 = var_47; [L164] SORT_4 var_49_arg_1 = var_48; [L165] SORT_4 var_49 = var_49_arg_0 + var_49_arg_1; [L166] var_49 = var_49 & mask_SORT_4 [L167] SORT_4 var_50_arg_0 = var_49; [L168] SORT_4 var_50_arg_1 = var_45; [L169] SORT_1 var_50 = var_50_arg_0 <= var_50_arg_1; [L170] SORT_1 var_51_arg_0 = ~state_43; [L171] var_51_arg_0 = var_51_arg_0 & mask_SORT_1 [L172] SORT_1 var_51_arg_1 = ~var_50; [L173] var_51_arg_1 = var_51_arg_1 & mask_SORT_1 [L174] SORT_1 var_51 = var_51_arg_0 & var_51_arg_1; [L175] var_51 = var_51 & mask_SORT_1 [L176] SORT_1 bad_52_arg_0 = var_51; [L177] CALL __VERIFIER_assert(!(bad_52_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: 0.6s, 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, 0.2s 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 [2022-11-21 16:30:07,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a --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 16a45ff550c912548b6ea863a62264e11925b5b01e108e129370b7b6a2adee8d --- 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-b5237d8 [2022-11-21 16:30:10,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:30:10,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:30:10,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:30:10,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:30:10,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:30:10,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:30:10,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:30:10,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:30:10,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:30:10,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:30:10,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:30:10,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:30:10,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:30:10,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:30:10,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:30:10,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:30:10,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:30:10,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:30:10,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:30:10,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:30:10,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:30:10,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:30:10,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:30:10,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:30:10,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:30:10,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:30:10,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:30:10,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:30:10,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:30:10,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:30:10,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:30:10,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:30:10,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:30:10,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:30:10,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:30:10,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:30:10,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:30:10,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:30:10,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:30:10,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:30:10,394 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 16:30:10,437 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:30:10,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:30:10,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:30:10,439 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:30:10,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:30:10,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:30:10,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:30:10,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:30:10,442 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:30:10,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:30:10,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:30:10,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:30:10,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:30:10,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:30:10,444 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:30:10,445 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 16:30:10,445 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 16:30:10,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:30:10,446 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:30:10,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:30:10,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:30:10,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:30:10,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:30:10,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:30:10,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:30:10,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:30:10,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:30:10,448 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 16:30:10,448 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 16:30:10,449 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:30:10,449 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:30:10,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:30:10,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 16:30:10,450 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16a45ff550c912548b6ea863a62264e11925b5b01e108e129370b7b6a2adee8d [2022-11-21 16:30:10,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:30:10,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:30:10,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:30:10,873 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:30:10,874 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:30:10,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2022-11-21 16:30:13,975 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:30:14,232 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:30:14,233 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2022-11-21 16:30:14,245 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/data/d7464b11c/1e74414e829f4352b3b754086885d6a5/FLAG07b9b7297 [2022-11-21 16:30:14,263 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/data/d7464b11c/1e74414e829f4352b3b754086885d6a5 [2022-11-21 16:30:14,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:30:14,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:30:14,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:30:14,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:30:14,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:30:14,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:30:14" (1/1) ... [2022-11-21 16:30:14,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36010c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:14, skipping insertion in model container [2022-11-21 16:30:14,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:30:14" (1/1) ... [2022-11-21 16:30:14,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:30:14,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:30:14,576 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_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1014,1027] [2022-11-21 16:30:14,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:30:14,963 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:30:14,986 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_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1014,1027] [2022-11-21 16:30:15,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:30:15,116 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:30:15,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:15 WrapperNode [2022-11-21 16:30:15,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:30:15,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:30:15,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:30:15,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:30:15,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:15" (1/1) ... [2022-11-21 16:30:15,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:15" (1/1) ... [2022-11-21 16:30:15,274 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1053 [2022-11-21 16:30:15,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:30:15,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:30:15,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:30:15,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:30:15,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:15" (1/1) ... [2022-11-21 16:30:15,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:15" (1/1) ... [2022-11-21 16:30:15,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:15" (1/1) ... [2022-11-21 16:30:15,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:15" (1/1) ... [2022-11-21 16:30:15,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:15" (1/1) ... [2022-11-21 16:30:15,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:15" (1/1) ... [2022-11-21 16:30:15,348 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:15" (1/1) ... [2022-11-21 16:30:15,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:15" (1/1) ... [2022-11-21 16:30:15,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:30:15,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:30:15,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:30:15,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:30:15,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:15" (1/1) ... [2022-11-21 16:30:15,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:30:15,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:30:15,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:30:15,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:30:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:30:15,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:30:15,837 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:30:15,839 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:30:17,497 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:30:17,514 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:30:17,514 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:30:17,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:30:17 BoogieIcfgContainer [2022-11-21 16:30:17,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:30:17,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:30:17,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:30:17,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:30:17,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:30:14" (1/3) ... [2022-11-21 16:30:17,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ad57db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:30:17, skipping insertion in model container [2022-11-21 16:30:17,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:15" (2/3) ... [2022-11-21 16:30:17,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ad57db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:30:17, skipping insertion in model container [2022-11-21 16:30:17,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:30:17" (3/3) ... [2022-11-21 16:30:17,530 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bakery.2.prop1-func-interl.c [2022-11-21 16:30:17,550 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:30:17,550 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:30:17,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:30:17,619 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;@78963520, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:30:17,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:30:17,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:17,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 16:30:17,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:30:17,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 16:30:17,632 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:30:17,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:17,641 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 16:30:17,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:30:17,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656752450] [2022-11-21 16:30:17,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:17,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:30:17,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:30:17,670 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:30:17,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-21 16:30:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:17,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-21 16:30:17,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:30:18,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:18,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:30:18,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:30:18,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656752450] [2022-11-21 16:30:18,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [656752450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:18,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:18,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:30:18,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030096233] [2022-11-21 16:30:18,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:18,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:30:18,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:30:18,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:30:18,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:30:18,332 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:18,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:30:18,602 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-21 16:30:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:30:18,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-21 16:30:18,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:30:18,615 INFO L225 Difference]: With dead ends: 20 [2022-11-21 16:30:18,615 INFO L226 Difference]: Without dead ends: 11 [2022-11-21 16:30:18,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:30:18,626 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 [2022-11-21 16:30:18,628 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] [2022-11-21 16:30:18,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-21 16:30:18,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-21 16:30:18,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:18,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-21 16:30:18,664 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-21 16:30:18,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:30:18,664 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-21 16:30:18,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:18,666 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-21 16:30:18,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 16:30:18,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:30:18,666 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:18,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-21 16:30:18,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:30:18,879 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:30:18,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:18,880 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-21 16:30:18,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:30:18,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787524028] [2022-11-21 16:30:18,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:18,884 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:30:18,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:30:18,886 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:30:18,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-21 16:30:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:19,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 91 conjunts are in the unsatisfiable core [2022-11-21 16:30:19,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:30:20,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:20,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:30:47,680 WARN L233 SmtUtils]: Spent 25.24s on a formula simplification that was a NOOP. DAG size: 250 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:30:48,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:48,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:30:48,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787524028] [2022-11-21 16:30:48,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787524028] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:30:48,401 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:30:48,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-21 16:30:48,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866765099] [2022-11-21 16:30:48,401 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:30:48,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:30:48,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:30:48,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:30:48,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:30:48,404 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:53,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:30:53,399 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-21 16:30:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:30:53,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-21 16:30:53,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:30:53,400 INFO L225 Difference]: With dead ends: 16 [2022-11-21 16:30:53,401 INFO L226 Difference]: Without dead ends: 14 [2022-11-21 16:30:53,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 30.9s TimeCoverageRelationStatistics Valid=37, Invalid=71, Unknown=2, NotChecked=0, Total=110 [2022-11-21 16:30:53,403 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:30:53,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 18 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:30:53,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-21 16:30:53,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-21 16:30:53,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:53,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-21 16:30:53,415 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-21 16:30:53,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:30:53,415 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-21 16:30:53,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:53,416 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-21 16:30:53,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 16:30:53,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:30:53,416 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-21 16:30:53,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:30:53,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:30:53,631 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:30:53,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:53,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-21 16:30:53,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:30:53,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753593403] [2022-11-21 16:30:53,634 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:30:53,635 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:30:53,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:30:53,636 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:30:53,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-21 16:30:54,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:30:54,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:30:54,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 1743 conjuncts, 217 conjunts are in the unsatisfiable core [2022-11-21 16:30:54,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:30:59,981 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:59,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:31:42,692 WARN L233 SmtUtils]: Spent 40.37s on a formula simplification that was a NOOP. DAG size: 218 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:34:15,008 WARN L233 SmtUtils]: Spent 2.29m on a formula simplification that was a NOOP. DAG size: 1435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:34:19,693 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:34:19,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:34:19,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753593403] [2022-11-21 16:34:19,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753593403] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:34:19,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:34:19,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-21 16:34:19,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884439287] [2022-11-21 16:34:19,695 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:34:19,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:34:19,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:34:19,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:34:19,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=64, Unknown=2, NotChecked=0, Total=90 [2022-11-21 16:34:19,698 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:34:28,579 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] [2022-11-21 16:34:37,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:34:39,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:34:42,398 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] [2022-11-21 16:34:43,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:34:43,258 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-21 16:34:43,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:34:43,259 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-21 16:34:43,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:34:43,261 INFO L225 Difference]: With dead ends: 19 [2022-11-21 16:34:43,261 INFO L226 Difference]: Without dead ends: 17 [2022-11-21 16:34:43,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 203.9s TimeCoverageRelationStatistics Valid=57, Invalid=120, Unknown=5, NotChecked=0, Total=182 [2022-11-21 16:34:43,264 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:34:43,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 21 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 4 Unknown, 0 Unchecked, 13.1s Time] [2022-11-21 16:34:43,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-21 16:34:43,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-21 16:34:43,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:34:43,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-21 16:34:43,280 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-21 16:34:43,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:34:43,281 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-21 16:34:43,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:34:43,281 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-21 16:34:43,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 16:34:43,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:34:43,282 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-21 16:34:43,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:34:43,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:34:43,487 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:34:43,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:34:43,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-21 16:34:43,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:34:43,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570411808] [2022-11-21 16:34:43,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 16:34:43,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:34:43,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:34:43,491 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:34:43,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d4dadf-21cb-4fbc-9b7f-96a6ad807435/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-21 16:34:44,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-21 16:34:44,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:34:44,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 2566 conjuncts, 339 conjunts are in the unsatisfiable core [2022-11-21 16:34:44,808 INFO L286 TraceCheckSpWp]: Computing forward predicates...