./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal57.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal57.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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 9be67a2dd8530a66f1036afdfdb19835d7e01c5ffc65f4ebaab799190bdae8fe --- 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 16:38:20,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:38:20,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:38:20,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:38:20,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:38:20,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:38:20,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:38:20,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:38:20,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:38:20,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:38:20,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:38:20,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:38:20,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:38:20,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:38:20,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:38:20,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:38:20,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:38:20,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:38:20,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:38:20,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:38:20,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:38:20,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:38:20,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:38:20,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:38:20,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:38:20,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:38:20,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:38:20,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:38:20,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:38:20,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:38:20,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:38:20,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:38:20,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:38:20,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:38:20,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:38:20,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:38:20,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:38:20,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:38:20,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:38:20,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:38:20,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:38:20,490 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 16:38:20,527 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:38:20,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:38:20,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:38:20,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:38:20,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:38:20,534 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:38:20,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:38:20,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:38:20,535 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:38:20,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:38:20,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:38:20,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:38:20,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:38:20,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:38:20,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:38:20,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:38:20,538 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:38:20,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:38:20,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:38:20,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:38:20,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:38:20,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:38:20,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:38:20,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:38:20,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:38:20,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:38:20,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:38:20,541 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:38:20,541 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:38:20,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:38:20,542 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_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9be67a2dd8530a66f1036afdfdb19835d7e01c5ffc65f4ebaab799190bdae8fe [2022-11-21 16:38:20,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:38:20,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:38:20,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:38:20,950 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:38:20,951 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:38:20,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal57.c [2022-11-21 16:38:24,400 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:38:24,729 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:38:24,730 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal57.c [2022-11-21 16:38:24,741 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/data/19b37aa2f/35a0296eef094f7b97aa2992553b1820/FLAG149e30966 [2022-11-21 16:38:24,762 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/data/19b37aa2f/35a0296eef094f7b97aa2992553b1820 [2022-11-21 16:38:24,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:38:24,769 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:38:24,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:38:24,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:38:24,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:38:24,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:38:24" (1/1) ... [2022-11-21 16:38:24,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b524d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:24, skipping insertion in model container [2022-11-21 16:38:24,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:38:24" (1/1) ... [2022-11-21 16:38:24,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:38:24,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:38:25,054 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_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal57.c[1107,1120] [2022-11-21 16:38:25,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:38:25,130 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:38:25,144 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_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal57.c[1107,1120] [2022-11-21 16:38:25,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:38:25,218 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:38:25,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:25 WrapperNode [2022-11-21 16:38:25,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:38:25,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:38:25,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:38:25,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:38:25,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:25" (1/1) ... [2022-11-21 16:38:25,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:25" (1/1) ... [2022-11-21 16:38:25,283 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 158 [2022-11-21 16:38:25,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:38:25,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:38:25,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:38:25,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:38:25,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:25" (1/1) ... [2022-11-21 16:38:25,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:25" (1/1) ... [2022-11-21 16:38:25,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:25" (1/1) ... [2022-11-21 16:38:25,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:25" (1/1) ... [2022-11-21 16:38:25,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:25" (1/1) ... [2022-11-21 16:38:25,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:25" (1/1) ... [2022-11-21 16:38:25,312 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:25" (1/1) ... [2022-11-21 16:38:25,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:25" (1/1) ... [2022-11-21 16:38:25,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:38:25,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:38:25,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:38:25,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:38:25,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:25" (1/1) ... [2022-11-21 16:38:25,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:38:25,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:38:25,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:38:25,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:38:25,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:38:25,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:38:25,609 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:38:25,612 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:38:26,096 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:38:26,104 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:38:26,105 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:38:26,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:38:26 BoogieIcfgContainer [2022-11-21 16:38:26,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:38:26,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:38:26,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:38:26,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:38:26,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:38:24" (1/3) ... [2022-11-21 16:38:26,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62dd46e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:38:26, skipping insertion in model container [2022-11-21 16:38:26,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:25" (2/3) ... [2022-11-21 16:38:26,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62dd46e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:38:26, skipping insertion in model container [2022-11-21 16:38:26,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:38:26" (3/3) ... [2022-11-21 16:38:26,118 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal57.c [2022-11-21 16:38:26,144 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:38:26,144 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:38:26,210 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:38:26,218 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;@63851beb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:38:26,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:38:26,223 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 16:38:26,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 16:38:26,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:38:26,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 16:38:26,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:38:26,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:26,240 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 16:38:26,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:26,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799629797] [2022-11-21 16:38:26,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:26,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:38:26,567 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:38:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:38:26,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:38:26,728 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:38:26,730 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 16:38:26,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:38:26,737 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 16:38:26,742 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:38:26,769 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-21 16:38:26,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:38:26 BoogieIcfgContainer [2022-11-21 16:38:26,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:38:26,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:38:26,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:38:26,783 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:38:26,783 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:38:26" (3/4) ... [2022-11-21 16:38:26,787 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:38:26,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:38:26,789 INFO L158 Benchmark]: Toolchain (without parser) took 2020.12ms. Allocated memory is still 155.2MB. Free memory was 118.5MB in the beginning and 65.0MB in the end (delta: 53.5MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2022-11-21 16:38:26,790 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory is still 92.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:38:26,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.38ms. Allocated memory is still 155.2MB. Free memory was 118.5MB in the beginning and 119.5MB in the end (delta: -958.4kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:38:26,791 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.18ms. Allocated memory is still 155.2MB. Free memory was 119.5MB in the beginning and 116.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:38:26,792 INFO L158 Benchmark]: Boogie Preprocessor took 32.97ms. Allocated memory is still 155.2MB. Free memory was 116.9MB in the beginning and 115.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:38:26,793 INFO L158 Benchmark]: RCFGBuilder took 789.20ms. Allocated memory is still 155.2MB. Free memory was 115.4MB in the beginning and 91.4MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-21 16:38:26,794 INFO L158 Benchmark]: TraceAbstraction took 671.42ms. Allocated memory is still 155.2MB. Free memory was 90.8MB in the beginning and 65.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-21 16:38:26,794 INFO L158 Benchmark]: Witness Printer took 5.69ms. Allocated memory is still 155.2MB. Free memory was 65.6MB in the beginning and 65.0MB in the end (delta: 563.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:38:26,809 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory is still 92.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.38ms. Allocated memory is still 155.2MB. Free memory was 118.5MB in the beginning and 119.5MB in the end (delta: -958.4kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.18ms. Allocated memory is still 155.2MB. Free memory was 119.5MB in the beginning and 116.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.97ms. Allocated memory is still 155.2MB. Free memory was 116.9MB in the beginning and 115.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 789.20ms. Allocated memory is still 155.2MB. Free memory was 115.4MB in the beginning and 91.4MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 671.42ms. Allocated memory is still 155.2MB. Free memory was 90.8MB in the beginning and 65.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 5.69ms. Allocated memory is still 155.2MB. Free memory was 65.6MB in the beginning and 65.0MB in the end (delta: 563.8kB). 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 73, overapproximation of bitwiseOr at line 95, overapproximation of bitwiseAnd at line 61. 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_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 3); [L29] const SORT_5 msb_SORT_5 = (SORT_5)1 << (3 - 1); [L31] const SORT_1 var_11 = 0; [L32] const SORT_5 var_15 = 0; [L33] const SORT_5 var_21 = 1; [L34] const SORT_1 var_31 = 1; [L36] SORT_1 input_2; [L37] SORT_1 input_3; [L38] SORT_1 input_4; [L39] SORT_5 input_6; [L40] SORT_5 input_7; [L41] SORT_1 input_8; [L42] SORT_5 input_9; [L43] SORT_5 input_10; [L45] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] SORT_5 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L47] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] SORT_5 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L50] SORT_1 init_13_arg_1 = var_11; [L51] state_12 = init_13_arg_1 [L52] SORT_5 init_17_arg_1 = var_15; [L53] state_16 = init_17_arg_1 [L54] SORT_1 init_19_arg_1 = var_11; [L55] state_18 = init_19_arg_1 [L56] SORT_5 init_24_arg_1 = var_15; [L57] state_23 = init_24_arg_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_23=0, var_11=0, var_15=0, var_21=1, var_31=1] [L60] input_2 = __VERIFIER_nondet_uchar() [L61] input_2 = input_2 & mask_SORT_1 [L62] input_3 = __VERIFIER_nondet_uchar() [L63] input_3 = input_3 & mask_SORT_1 [L64] input_4 = __VERIFIER_nondet_uchar() [L65] input_6 = __VERIFIER_nondet_uchar() [L66] input_7 = __VERIFIER_nondet_uchar() [L67] input_8 = __VERIFIER_nondet_uchar() [L68] input_9 = __VERIFIER_nondet_uchar() [L69] input_10 = __VERIFIER_nondet_uchar() [L72] SORT_1 var_14_arg_0 = state_12; [L73] SORT_1 var_14 = ~var_14_arg_0; [L74] SORT_1 var_20_arg_0 = state_18; [L75] SORT_5 var_20_arg_1 = state_16; [L76] SORT_5 var_20_arg_2 = input_7; [L77] SORT_5 var_20 = var_20_arg_0 ? var_20_arg_1 : var_20_arg_2; [L78] var_20 = var_20 & mask_SORT_5 [L79] SORT_5 var_22_arg_0 = var_20; [L80] SORT_5 var_22_arg_1 = var_21; [L81] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L82] SORT_1 var_25_arg_0 = state_18; [L83] SORT_5 var_25_arg_1 = state_23; [L84] SORT_5 var_25_arg_2 = input_7; [L85] SORT_5 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L86] var_25 = var_25 & mask_SORT_5 [L87] SORT_5 var_26_arg_0 = var_25; [L88] SORT_5 var_26_arg_1 = var_21; [L89] SORT_1 var_26 = var_26_arg_0 == var_26_arg_1; [L90] SORT_1 var_27_arg_0 = var_22; [L91] SORT_1 var_27_arg_1 = var_26; [L92] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L93] SORT_1 var_28_arg_0 = var_14; [L94] SORT_1 var_28_arg_1 = var_27; [L95] SORT_1 var_28 = var_28_arg_0 | var_28_arg_1; [L96] SORT_1 var_32_arg_0 = var_28; [L97] SORT_1 var_32 = ~var_32_arg_0; [L98] SORT_1 var_33_arg_0 = var_31; [L99] SORT_1 var_33_arg_1 = var_32; [L100] SORT_1 var_33 = var_33_arg_0 & var_33_arg_1; [L101] var_33 = var_33 & mask_SORT_1 [L102] SORT_1 bad_34_arg_0 = var_33; [L103] CALL __VERIFIER_assert(!(bad_34_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: 0.5s, 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 16:38:26,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal57.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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 9be67a2dd8530a66f1036afdfdb19835d7e01c5ffc65f4ebaab799190bdae8fe --- 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 16:38:29,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:38:29,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:38:29,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:38:29,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:38:29,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:38:29,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:38:29,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:38:29,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:38:29,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:38:29,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:38:29,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:38:29,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:38:29,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:38:29,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:38:29,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:38:29,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:38:29,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:38:29,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:38:29,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:38:29,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:38:29,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:38:29,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:38:29,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:38:29,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:38:29,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:38:29,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:38:29,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:38:29,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:38:29,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:38:29,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:38:29,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:38:29,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:38:29,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:38:29,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:38:29,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:38:29,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:38:29,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:38:29,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:38:29,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:38:29,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:38:29,992 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 16:38:30,031 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:38:30,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:38:30,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:38:30,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:38:30,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:38:30,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:38:30,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:38:30,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:38:30,037 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:38:30,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:38:30,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:38:30,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:38:30,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:38:30,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:38:30,039 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:38:30,039 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 16:38:30,040 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 16:38:30,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:38:30,040 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:38:30,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:38:30,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:38:30,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:38:30,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:38:30,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:38:30,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:38:30,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:38:30,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:38:30,042 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 16:38:30,043 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 16:38:30,043 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:38:30,043 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:38:30,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:38:30,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 16:38:30,044 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_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9be67a2dd8530a66f1036afdfdb19835d7e01c5ffc65f4ebaab799190bdae8fe [2022-11-21 16:38:30,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:38:30,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:38:30,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:38:30,532 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:38:30,533 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:38:30,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal57.c [2022-11-21 16:38:33,897 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:38:34,173 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:38:34,174 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal57.c [2022-11-21 16:38:34,183 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/data/77a3faba2/a68262e156dc4074ba52184a9ec75c6b/FLAGa9bf6bcaf [2022-11-21 16:38:34,209 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/data/77a3faba2/a68262e156dc4074ba52184a9ec75c6b [2022-11-21 16:38:34,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:38:34,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:38:34,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:38:34,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:38:34,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:38:34,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:38:34" (1/1) ... [2022-11-21 16:38:34,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4bacd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:34, skipping insertion in model container [2022-11-21 16:38:34,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:38:34" (1/1) ... [2022-11-21 16:38:34,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:38:34,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:38:34,517 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_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal57.c[1107,1120] [2022-11-21 16:38:34,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:38:34,643 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:38:34,657 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_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal57.c[1107,1120] [2022-11-21 16:38:34,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:38:34,744 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:38:34,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:34 WrapperNode [2022-11-21 16:38:34,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:38:34,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:38:34,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:38:34,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:38:34,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:34" (1/1) ... [2022-11-21 16:38:34,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:34" (1/1) ... [2022-11-21 16:38:34,826 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 158 [2022-11-21 16:38:34,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:38:34,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:38:34,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:38:34,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:38:34,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:34" (1/1) ... [2022-11-21 16:38:34,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:34" (1/1) ... [2022-11-21 16:38:34,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:34" (1/1) ... [2022-11-21 16:38:34,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:34" (1/1) ... [2022-11-21 16:38:34,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:34" (1/1) ... [2022-11-21 16:38:34,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:34" (1/1) ... [2022-11-21 16:38:34,873 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:34" (1/1) ... [2022-11-21 16:38:34,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:34" (1/1) ... [2022-11-21 16:38:34,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:38:34,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:38:34,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:38:34,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:38:34,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:34" (1/1) ... [2022-11-21 16:38:34,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:38:34,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:38:34,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:38:34,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:38:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:38:35,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:38:35,148 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:38:35,150 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:38:35,577 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:38:35,585 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:38:35,586 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:38:35,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:38:35 BoogieIcfgContainer [2022-11-21 16:38:35,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:38:35,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:38:35,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:38:35,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:38:35,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:38:34" (1/3) ... [2022-11-21 16:38:35,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417e067d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:38:35, skipping insertion in model container [2022-11-21 16:38:35,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:34" (2/3) ... [2022-11-21 16:38:35,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417e067d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:38:35, skipping insertion in model container [2022-11-21 16:38:35,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:38:35" (3/3) ... [2022-11-21 16:38:35,599 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal57.c [2022-11-21 16:38:35,628 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:38:35,628 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:38:35,709 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:38:35,719 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;@115f50fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:38:35,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:38:35,724 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 16:38:35,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 16:38:35,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:38:35,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 16:38:35,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:38:35,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:35,743 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 16:38:35,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:38:35,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322262713] [2022-11-21 16:38:35,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:35,761 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 16:38:35,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:38:35,767 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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 16:38:35,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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 16:38:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:35,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-21 16:38:35,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:38:36,253 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 16:38:36,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:38:36,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:38:36,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322262713] [2022-11-21 16:38:36,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322262713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:36,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:36,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:38:36,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324522287] [2022-11-21 16:38:36,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:36,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:38:36,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:38:36,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:38:36,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:38:36,340 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 16:38:36,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:38:36,432 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-21 16:38:36,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:38:36,436 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 16:38:36,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:38:36,447 INFO L225 Difference]: With dead ends: 20 [2022-11-21 16:38:36,447 INFO L226 Difference]: Without dead ends: 11 [2022-11-21 16:38:36,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:38:36,457 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:38:36,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:38:36,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-21 16:38:36,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-21 16:38:36,495 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 16:38:36,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-21 16:38:36,500 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-21 16:38:36,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:38:36,501 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-21 16:38:36,501 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 16:38:36,502 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-21 16:38:36,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 16:38:36,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:38:36,503 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 16:38:36,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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)] Forceful destruction successful, exit code 0 [2022-11-21 16:38:36,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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 16:38:36,721 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:38:36,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:36,722 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-21 16:38:36,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:38:36,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75859637] [2022-11-21 16:38:36,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:36,730 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 16:38:36,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:38:36,733 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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 16:38:36,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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 16:38:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:36,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-21 16:38:36,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:38:37,527 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 16:38:37,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:38:39,216 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 16:38:39,218 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:38:39,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75859637] [2022-11-21 16:38:39,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75859637] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:38:39,220 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:38:39,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-21 16:38:39,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004280678] [2022-11-21 16:38:39,226 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:38:39,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:38:39,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:38:39,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:38:39,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:38:39,231 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 16:38:39,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:38:39,395 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-21 16:38:39,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:38:39,396 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 16:38:39,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:38:39,396 INFO L225 Difference]: With dead ends: 16 [2022-11-21 16:38:39,397 INFO L226 Difference]: Without dead ends: 14 [2022-11-21 16:38:39,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:38:39,398 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:38:39,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 21 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:38:39,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-21 16:38:39,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-21 16:38:39,404 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 16:38:39,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-21 16:38:39,405 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-21 16:38:39,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:38:39,406 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-21 16:38:39,406 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 16:38:39,406 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-21 16:38:39,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 16:38:39,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:38:39,408 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-21 16:38:39,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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)] Forceful destruction successful, exit code 0 [2022-11-21 16:38:39,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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 16:38:39,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:38:39,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:39,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-21 16:38:39,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:38:39,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900789635] [2022-11-21 16:38:39,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:38:39,625 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 16:38:39,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:38:39,627 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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 16:38:39,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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 16:38:39,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:38:39,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:38:39,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 101 conjunts are in the unsatisfiable core [2022-11-21 16:38:39,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:38:42,137 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 16:38:42,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:38:59,512 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 16:38:59,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:38:59,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900789635] [2022-11-21 16:38:59,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900789635] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:38:59,514 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:38:59,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-21 16:38:59,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882892892] [2022-11-21 16:38:59,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:38:59,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:38:59,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:38:59,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:38:59,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:38:59,517 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 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 16:38:59,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:38:59,921 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-11-21 16:38:59,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:38:59,922 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 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 16:38:59,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:38:59,922 INFO L225 Difference]: With dead ends: 13 [2022-11-21 16:38:59,923 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 16:38:59,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:38:59,925 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:38:59,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 12 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:38:59,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 16:38:59,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 16:38:59,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:38:59,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 16:38:59,927 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-11-21 16:38:59,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:38:59,928 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:38:59,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 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 16:38:59,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 16:38:59,929 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 16:38:59,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 16:38:59,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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 16:39:00,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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 16:39:00,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 16:39:00,391 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 16:39:00,392 INFO L895 garLoopResultBuilder]: At program point L58-2(lines 58 169) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_main_~var_31~0#1| |ULTIMATE.start_main_~state_12~0#1|)) (.cse2 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse3 (= (_ bv7 8) |ULTIMATE.start_main_~mask_SORT_5~0#1|)) (.cse4 (= (_ bv1 8) |ULTIMATE.start_main_~var_31~0#1|)) (.cse5 (= (_ bv0 8) |ULTIMATE.start_main_~state_18~0#1|)) (.cse6 (= |ULTIMATE.start_main_~var_15~0#1| (_ bv0 8))) (.cse7 (= (_ bv1 8) |ULTIMATE.start_main_~var_21~0#1|)) (.cse8 (= |ULTIMATE.start_main_~var_11~0#1| (_ bv0 8)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (let ((.cse11 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (and (exists ((|ULTIMATE.start_main_~var_40_arg_1~0#1| (_ BitVec 8))) (let ((.cse9 ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_40_arg_1~0#1|)))))))))))) (and (= .cse9 |ULTIMATE.start_main_~state_16~0#1|) (= .cse9 |ULTIMATE.start_main_~state_23~0#1|)))) .cse0 .cse1 .cse2 (exists ((|ULTIMATE.start_main_~var_25_arg_2~0#1| (_ BitVec 8))) (let ((.cse10 ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_5~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_25_arg_2~0#1|))))))) (and (= .cse10 |ULTIMATE.start_main_~var_25~0#1|) (= .cse10 |ULTIMATE.start_main_~var_20~0#1|)))) (exists ((|v_ULTIMATE.start_main_#t~nondet4#1_5| (_ BitVec 8))) (= |ULTIMATE.start_main_~input_2~0#1| ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet4#1_5|) .cse11)))) .cse3 .cse4 (= ((_ extract 7 0) (bvand (_ bv1 32) .cse11)) |ULTIMATE.start_main_~state_18~0#1|) .cse6 .cse7 .cse8 (exists ((|v_ULTIMATE.start_main_#t~nondet5#1_5| (_ BitVec 8))) (= |ULTIMATE.start_main_~input_3~0#1| ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet5#1_5|) .cse11)))))) (and .cse0 .cse3 .cse4 (= |ULTIMATE.start_main_~var_11~0#1| |ULTIMATE.start_main_~state_12~0#1|) .cse5 .cse6 .cse7 .cse8))) [2022-11-21 16:39:00,393 INFO L899 garLoopResultBuilder]: For program point L58-3(lines 58 169) no Hoare annotation was computed. [2022-11-21 16:39:00,393 INFO L895 garLoopResultBuilder]: At program point L170(lines 22 171) the Hoare annotation is: false [2022-11-21 16:39:00,393 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 16:39:00,393 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 16:39:00,393 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 16:39:00,394 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-21 16:39:00,394 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-21 16:39:00,394 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-21 16:39:00,394 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-21 16:39:00,398 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-21 16:39:00,407 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:39:00,418 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-11-21 16:39:00,425 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-11-21 16:39:00,425 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-11-21 16:39:00,425 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-11-21 16:39:00,426 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] [2022-11-21 16:39:00,426 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_5,QUANTIFIED] [2022-11-21 16:39:00,437 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-11-21 16:39:00,437 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-11-21 16:39:00,443 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-11-21 16:39:00,443 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-11-21 16:39:00,444 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] [2022-11-21 16:39:00,444 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_5,QUANTIFIED] [2022-11-21 16:39:00,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:39:00 BoogieIcfgContainer [2022-11-21 16:39:00,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:39:00,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:39:00,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:39:00,460 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:39:00,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:38:35" (3/4) ... [2022-11-21 16:39:00,472 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:39:00,488 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-21 16:39:00,491 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-21 16:39:00,491 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:39:00,537 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((1bv8 == mask_SORT_1 && var_31 == state_12) && cond == 1bv32) && 7bv8 == mask_SORT_5) && 1bv8 == var_31) && 0bv8 == state_18) && var_15 == 0bv8) && 1bv8 == var_21) && var_11 == 0bv8) || (((((((((((((\exists ULTIMATE.start_main_~var_40_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_40_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_16 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_40_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_23) && 1bv8 == mask_SORT_1) && var_31 == state_12) && cond == 1bv32) && (\exists ULTIMATE.start_main_~var_25_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_25_arg_2~0#1)[7:0]))[7:0] == var_25 && ~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_25_arg_2~0#1)[7:0]))[7:0] == var_20)) && (\exists v_ULTIMATE.start_main_#t~nondet4#1_5 : bv8 :: input_2 == ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet4#1_5), ~zero_extendFrom8To32(mask_SORT_1))[7:0])) && 7bv8 == mask_SORT_5) && 1bv8 == var_31) && ~bvand32(1bv32, ~zero_extendFrom8To32(mask_SORT_1))[7:0] == state_18) && var_15 == 0bv8) && 1bv8 == var_21) && var_11 == 0bv8) && (\exists v_ULTIMATE.start_main_#t~nondet5#1_5 : bv8 :: input_3 == ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet5#1_5), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) || (((((((1bv8 == mask_SORT_1 && 7bv8 == mask_SORT_5) && 1bv8 == var_31) && var_11 == state_12) && 0bv8 == state_18) && var_15 == 0bv8) && 1bv8 == var_21) && var_11 == 0bv8) [2022-11-21 16:39:00,574 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:39:00,574 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:39:00,575 INFO L158 Benchmark]: Toolchain (without parser) took 26349.53ms. Allocated memory was 71.3MB in the beginning and 220.2MB in the end (delta: 148.9MB). Free memory was 52.1MB in the beginning and 117.6MB in the end (delta: -65.5MB). Peak memory consumption was 84.1MB. Max. memory is 16.1GB. [2022-11-21 16:39:00,575 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 71.3MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:39:00,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 513.42ms. Allocated memory is still 71.3MB. Free memory was 51.8MB in the beginning and 39.2MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 16:39:00,576 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.79ms. Allocated memory is still 71.3MB. Free memory was 38.9MB in the beginning and 36.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:39:00,577 INFO L158 Benchmark]: Boogie Preprocessor took 45.77ms. Allocated memory is still 71.3MB. Free memory was 36.8MB in the beginning and 35.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:39:00,577 INFO L158 Benchmark]: RCFGBuilder took 709.40ms. Allocated memory is still 71.3MB. Free memory was 35.2MB in the beginning and 39.9MB in the end (delta: -4.7MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-11-21 16:39:00,578 INFO L158 Benchmark]: TraceAbstraction took 24867.84ms. Allocated memory was 71.3MB in the beginning and 220.2MB in the end (delta: 148.9MB). Free memory was 39.3MB in the beginning and 121.8MB in the end (delta: -82.5MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2022-11-21 16:39:00,578 INFO L158 Benchmark]: Witness Printer took 115.28ms. Allocated memory is still 220.2MB. Free memory was 121.8MB in the beginning and 117.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:39:00,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 71.3MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 513.42ms. Allocated memory is still 71.3MB. Free memory was 51.8MB in the beginning and 39.2MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.79ms. Allocated memory is still 71.3MB. Free memory was 38.9MB in the beginning and 36.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.77ms. Allocated memory is still 71.3MB. Free memory was 36.8MB in the beginning and 35.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 709.40ms. Allocated memory is still 71.3MB. Free memory was 35.2MB in the beginning and 39.9MB in the end (delta: -4.7MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * TraceAbstraction took 24867.84ms. Allocated memory was 71.3MB in the beginning and 220.2MB in the end (delta: 148.9MB). Free memory was 39.3MB in the beginning and 121.8MB in the end (delta: -82.5MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. * Witness Printer took 115.28ms. Allocated memory is still 220.2MB. Free memory was 121.8MB in the beginning and 117.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_5,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.7s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 11 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 155 HoareAnnotationTreeSize, 2 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 22.3s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 14 QuantifiedInterpolants, 2956 SizeOfPredicates, 174 NumberOfNonLiveVariables, 474 ConjunctsInSsa, 156 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 58]: Loop Invariant [2022-11-21 16:39:00,592 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-11-21 16:39:00,593 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-11-21 16:39:00,593 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-11-21 16:39:00,593 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-11-21 16:39:00,593 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] [2022-11-21 16:39:00,594 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_5,QUANTIFIED] [2022-11-21 16:39:00,595 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-11-21 16:39:00,595 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-11-21 16:39:00,596 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-11-21 16:39:00,596 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-11-21 16:39:00,596 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] [2022-11-21 16:39:00,596 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_5,QUANTIFIED] Derived loop invariant: (((((((((1bv8 == mask_SORT_1 && var_31 == state_12) && cond == 1bv32) && 7bv8 == mask_SORT_5) && 1bv8 == var_31) && 0bv8 == state_18) && var_15 == 0bv8) && 1bv8 == var_21) && var_11 == 0bv8) || (((((((((((((\exists ULTIMATE.start_main_~var_40_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_40_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_16 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_40_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_23) && 1bv8 == mask_SORT_1) && var_31 == state_12) && cond == 1bv32) && (\exists ULTIMATE.start_main_~var_25_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_25_arg_2~0#1)[7:0]))[7:0] == var_25 && ~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_25_arg_2~0#1)[7:0]))[7:0] == var_20)) && (\exists v_ULTIMATE.start_main_#t~nondet4#1_5 : bv8 :: input_2 == ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet4#1_5), ~zero_extendFrom8To32(mask_SORT_1))[7:0])) && 7bv8 == mask_SORT_5) && 1bv8 == var_31) && ~bvand32(1bv32, ~zero_extendFrom8To32(mask_SORT_1))[7:0] == state_18) && var_15 == 0bv8) && 1bv8 == var_21) && var_11 == 0bv8) && (\exists v_ULTIMATE.start_main_#t~nondet5#1_5 : bv8 :: input_3 == ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet5#1_5), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) || (((((((1bv8 == mask_SORT_1 && 7bv8 == mask_SORT_5) && 1bv8 == var_31) && var_11 == state_12) && 0bv8 == state_18) && var_15 == 0bv8) && 1bv8 == var_21) && var_11 == 0bv8) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-21 16:39:00,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe64bb3f-6c33-4676-8fdc-f2e303ba82b5/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 Writing output log to file Ultimate.log Result: TRUE