./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R --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 e734a6415ecaa3efaa9cfa8e6fa7e794c71eea5a8e2df3ec7e51a002eff99a9e --- 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-38b53e6 [2022-11-25 16:59:39,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:59:39,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:59:39,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:59:39,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:59:39,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:59:39,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:59:39,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:59:39,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:59:39,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:59:39,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:59:39,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:59:39,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:59:39,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:59:39,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:59:39,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:59:39,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:59:39,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:59:39,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:59:39,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:59:39,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:59:39,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:59:39,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:59:39,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:59:39,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:59:39,535 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:59:39,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:59:39,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:59:39,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:59:39,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:59:39,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:59:39,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:59:39,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:59:39,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:59:39,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:59:39,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:59:39,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:59:39,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:59:39,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:59:39,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:59:39,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:59:39,550 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 16:59:39,582 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:59:39,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:59:39,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:59:39,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:59:39,584 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:59:39,584 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:59:39,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:59:39,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:59:39,585 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:59:39,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:59:39,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:59:39,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:59:39,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:59:39,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:59:39,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:59:39,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:59:39,588 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:59:39,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:59:39,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:59:39,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:59:39,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:59:39,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:59:39,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:59:39,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:59:39,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:59:39,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:59:39,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:59:39,591 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:59:39,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:59:39,591 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:59:39,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:59:39,591 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e734a6415ecaa3efaa9cfa8e6fa7e794c71eea5a8e2df3ec7e51a002eff99a9e [2022-11-25 16:59:39,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:59:39,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:59:39,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:59:39,930 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:59:39,930 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:59:39,931 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c [2022-11-25 16:59:42,940 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:59:43,189 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:59:43,190 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c [2022-11-25 16:59:43,198 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/data/3686fce28/2b6b20d06519484080f04e4e093a9be0/FLAG73618893a [2022-11-25 16:59:43,213 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/data/3686fce28/2b6b20d06519484080f04e4e093a9be0 [2022-11-25 16:59:43,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:59:43,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:59:43,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:59:43,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:59:43,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:59:43,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:59:43" (1/1) ... [2022-11-25 16:59:43,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756e91e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:43, skipping insertion in model container [2022-11-25 16:59:43,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:59:43" (1/1) ... [2022-11-25 16:59:43,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:59:43,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:59:43,430 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_897965c9-a629-41cf-8733-7208c8dc6e30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c[1107,1120] [2022-11-25 16:59:43,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:59:43,505 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:59:43,522 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c[1107,1120] [2022-11-25 16:59:43,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:59:43,603 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:59:43,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:43 WrapperNode [2022-11-25 16:59:43,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:59:43,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:59:43,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:59:43,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:59:43,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:43" (1/1) ... [2022-11-25 16:59:43,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:43" (1/1) ... [2022-11-25 16:59:43,676 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 155 [2022-11-25 16:59:43,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:59:43,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:59:43,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:59:43,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:59:43,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:43" (1/1) ... [2022-11-25 16:59:43,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:43" (1/1) ... [2022-11-25 16:59:43,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:43" (1/1) ... [2022-11-25 16:59:43,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:43" (1/1) ... [2022-11-25 16:59:43,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:43" (1/1) ... [2022-11-25 16:59:43,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:43" (1/1) ... [2022-11-25 16:59:43,742 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:43" (1/1) ... [2022-11-25 16:59:43,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:43" (1/1) ... [2022-11-25 16:59:43,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:59:43,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:59:43,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:59:43,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:59:43,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:43" (1/1) ... [2022-11-25 16:59:43,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:59:43,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:59:43,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:59:43,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:59:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:59:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:59:43,928 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:59:43,931 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:59:44,466 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:59:44,472 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:59:44,473 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 16:59:44,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:59:44 BoogieIcfgContainer [2022-11-25 16:59:44,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:59:44,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:59:44,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:59:44,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:59:44,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:59:43" (1/3) ... [2022-11-25 16:59:44,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a555ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:59:44, skipping insertion in model container [2022-11-25 16:59:44,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:43" (2/3) ... [2022-11-25 16:59:44,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a555ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:59:44, skipping insertion in model container [2022-11-25 16:59:44,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:59:44" (3/3) ... [2022-11-25 16:59:44,484 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_segments.c [2022-11-25 16:59:44,503 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:59:44,504 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 16:59:44,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:59:44,569 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;@50e655f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:59:44,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 16:59:44,573 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) [2022-11-25 16:59:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 16:59:44,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:44,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 16:59:44,580 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:59:44,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:44,589 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 16:59:44,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:44,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263792257] [2022-11-25 16:59:44,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:44,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:59:45,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 16:59:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:59:45,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 16:59:45,496 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 16:59:45,498 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 16:59:45,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:59:45,504 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 16:59:45,509 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:59:45,545 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 16:59:45,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:59:45 BoogieIcfgContainer [2022-11-25 16:59:45,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:59:45,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:59:45,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:59:45,559 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:59:45,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:59:44" (3/4) ... [2022-11-25 16:59:45,563 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 16:59:45,563 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:59:45,565 INFO L158 Benchmark]: Toolchain (without parser) took 2347.63ms. Allocated memory is still 172.0MB. Free memory was 141.0MB in the beginning and 118.7MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 16:59:45,565 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:59:45,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.68ms. Allocated memory is still 172.0MB. Free memory was 141.0MB in the beginning and 127.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 16:59:45,567 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.34ms. Allocated memory is still 172.0MB. Free memory was 127.5MB in the beginning and 124.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:59:45,569 INFO L158 Benchmark]: Boogie Preprocessor took 58.99ms. Allocated memory is still 172.0MB. Free memory was 124.7MB in the beginning and 123.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:59:45,574 INFO L158 Benchmark]: RCFGBuilder took 727.86ms. Allocated memory is still 172.0MB. Free memory was 123.3MB in the beginning and 89.7MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-25 16:59:45,576 INFO L158 Benchmark]: TraceAbstraction took 1079.26ms. Allocated memory is still 172.0MB. Free memory was 89.0MB in the beginning and 119.7MB in the end (delta: -30.7MB). Peak memory consumption was 42.0MB. Max. memory is 16.1GB. [2022-11-25 16:59:45,578 INFO L158 Benchmark]: Witness Printer took 5.41ms. Allocated memory is still 172.0MB. Free memory was 119.7MB in the beginning and 118.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:59:45,586 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.68ms. Allocated memory is still 172.0MB. Free memory was 141.0MB in the beginning and 127.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.34ms. Allocated memory is still 172.0MB. Free memory was 127.5MB in the beginning and 124.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.99ms. Allocated memory is still 172.0MB. Free memory was 124.7MB in the beginning and 123.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 727.86ms. Allocated memory is still 172.0MB. Free memory was 123.3MB in the beginning and 89.7MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1079.26ms. Allocated memory is still 172.0MB. Free memory was 89.0MB in the beginning and 119.7MB in the end (delta: -30.7MB). Peak memory consumption was 42.0MB. Max. memory is 16.1GB. * Witness Printer took 5.41ms. Allocated memory is still 172.0MB. Free memory was 119.7MB in the beginning and 118.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 109, overapproximation of bitwiseOr at line 80, overapproximation of bitwiseAnd at line 63. 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_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 8); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (8 - 1); [L31] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 32); [L32] const SORT_8 msb_SORT_8 = (SORT_8)1 << (32 - 1); [L34] const SORT_52 mask_SORT_52 = (SORT_52)-1 >> (sizeof(SORT_52) * 8 - 2); [L35] const SORT_52 msb_SORT_52 = (SORT_52)1 << (2 - 1); [L37] const SORT_54 mask_SORT_54 = (SORT_54)-1 >> (sizeof(SORT_54) * 8 - 3); [L38] const SORT_54 msb_SORT_54 = (SORT_54)1 << (3 - 1); [L40] const SORT_4 var_5 = 0; [L41] const SORT_8 var_10 = 0; [L42] const SORT_8 var_13 = 1; [L43] const SORT_8 var_17 = 2; [L44] const SORT_8 var_21 = 3; [L45] const SORT_8 var_25 = 4; [L46] const SORT_1 var_30 = 1; [L47] const SORT_4 var_41 = 1; [L48] const SORT_4 var_44 = 4; [L49] const SORT_4 var_45 = 3; [L50] const SORT_4 var_50 = 2; [L52] SORT_1 input_2; [L53] SORT_1 input_3; [L55] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L57] SORT_4 init_7_arg_1 = var_5; [L58] state_6 = init_7_arg_1 VAL [init_7_arg_1=0, mask_SORT_1=1, mask_SORT_4=255, mask_SORT_52=3, mask_SORT_54=7, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_4=128, msb_SORT_52=2, msb_SORT_54=4, msb_SORT_8=2147483648, state_6=0, var_10=0, var_13=1, var_17=2, var_21=3, var_25=4, var_30=1, var_41=1, var_44=4, var_45=3, var_5=0, var_50=2] [L61] input_2 = __VERIFIER_nondet_uchar() [L62] input_3 = __VERIFIER_nondet_uchar() [L63] input_3 = input_3 & mask_SORT_1 [L66] SORT_4 var_9_arg_0 = state_6; [L67] var_9_arg_0 = var_9_arg_0 & mask_SORT_4 [L68] SORT_8 var_9 = var_9_arg_0; [L69] SORT_8 var_11_arg_0 = var_9; [L70] SORT_8 var_11_arg_1 = var_10; [L71] SORT_1 var_11 = var_11_arg_0 == var_11_arg_1; [L72] SORT_4 var_12_arg_0 = state_6; [L73] var_12_arg_0 = var_12_arg_0 & mask_SORT_4 [L74] SORT_8 var_12 = var_12_arg_0; [L75] SORT_8 var_14_arg_0 = var_12; [L76] SORT_8 var_14_arg_1 = var_13; [L77] SORT_1 var_14 = var_14_arg_0 == var_14_arg_1; [L78] SORT_1 var_15_arg_0 = var_11; [L79] SORT_1 var_15_arg_1 = var_14; [L80] SORT_1 var_15 = var_15_arg_0 | var_15_arg_1; [L81] SORT_4 var_16_arg_0 = state_6; [L82] var_16_arg_0 = var_16_arg_0 & mask_SORT_4 [L83] SORT_8 var_16 = var_16_arg_0; [L84] SORT_8 var_18_arg_0 = var_16; [L85] SORT_8 var_18_arg_1 = var_17; [L86] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L87] SORT_1 var_19_arg_0 = var_15; [L88] SORT_1 var_19_arg_1 = var_18; [L89] SORT_1 var_19 = var_19_arg_0 | var_19_arg_1; [L90] SORT_4 var_20_arg_0 = state_6; [L91] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L92] SORT_8 var_20 = var_20_arg_0; [L93] SORT_8 var_22_arg_0 = var_20; [L94] SORT_8 var_22_arg_1 = var_21; [L95] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L96] SORT_1 var_23_arg_0 = var_19; [L97] SORT_1 var_23_arg_1 = var_22; [L98] SORT_1 var_23 = var_23_arg_0 | var_23_arg_1; [L99] SORT_4 var_24_arg_0 = state_6; [L100] var_24_arg_0 = var_24_arg_0 & mask_SORT_4 [L101] SORT_8 var_24 = var_24_arg_0; [L102] SORT_8 var_26_arg_0 = var_24; [L103] SORT_8 var_26_arg_1 = var_25; [L104] SORT_1 var_26 = var_26_arg_0 == var_26_arg_1; [L105] SORT_1 var_27_arg_0 = var_23; [L106] SORT_1 var_27_arg_1 = var_26; [L107] SORT_1 var_27 = var_27_arg_0 | var_27_arg_1; [L108] SORT_1 var_31_arg_0 = var_27; [L109] SORT_1 var_31 = ~var_31_arg_0; [L110] SORT_1 var_32_arg_0 = var_30; [L111] SORT_1 var_32_arg_1 = var_31; [L112] SORT_1 var_32 = var_32_arg_0 & var_32_arg_1; [L113] var_32 = var_32 & mask_SORT_1 [L114] SORT_1 bad_33_arg_0 = var_32; [L115] CALL __VERIFIER_assert(!(bad_33_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: 1.0s, 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, 0.5s 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 [2022-11-25 16:59:45,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R --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 e734a6415ecaa3efaa9cfa8e6fa7e794c71eea5a8e2df3ec7e51a002eff99a9e --- 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-38b53e6 [2022-11-25 16:59:48,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:59:48,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:59:48,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:59:48,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:59:48,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:59:48,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:59:48,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:59:48,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:59:48,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:59:48,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:59:48,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:59:48,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:59:48,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:59:48,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:59:48,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:59:48,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:59:48,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:59:48,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:59:48,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:59:48,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:59:48,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:59:48,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:59:48,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:59:48,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:59:48,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:59:48,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:59:48,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:59:48,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:59:48,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:59:48,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:59:48,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:59:48,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:59:48,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:59:48,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:59:48,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:59:48,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:59:48,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:59:48,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:59:48,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:59:48,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:59:48,182 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-25 16:59:48,225 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:59:48,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:59:48,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:59:48,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:59:48,228 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:59:48,228 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:59:48,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:59:48,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:59:48,230 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:59:48,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:59:48,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:59:48,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:59:48,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:59:48,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:59:48,232 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 16:59:48,232 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 16:59:48,232 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 16:59:48,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:59:48,233 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:59:48,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:59:48,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:59:48,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:59:48,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:59:48,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:59:48,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:59:48,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:59:48,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:59:48,235 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 16:59:48,235 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 16:59:48,236 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:59:48,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:59:48,236 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:59:48,237 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:59:48,237 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 16:59:48,237 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e734a6415ecaa3efaa9cfa8e6fa7e794c71eea5a8e2df3ec7e51a002eff99a9e [2022-11-25 16:59:48,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:59:48,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:59:48,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:59:48,709 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:59:48,709 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:59:48,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c [2022-11-25 16:59:51,907 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:59:52,168 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:59:52,168 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c [2022-11-25 16:59:52,180 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/data/a8ba9b283/e80d9073e39d482691b3da1d09c9547b/FLAG5229699a8 [2022-11-25 16:59:52,193 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/data/a8ba9b283/e80d9073e39d482691b3da1d09c9547b [2022-11-25 16:59:52,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:59:52,197 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:59:52,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:59:52,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:59:52,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:59:52,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:59:52" (1/1) ... [2022-11-25 16:59:52,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eb863bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:52, skipping insertion in model container [2022-11-25 16:59:52,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:59:52" (1/1) ... [2022-11-25 16:59:52,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:59:52,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:59:52,376 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_897965c9-a629-41cf-8733-7208c8dc6e30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c[1107,1120] [2022-11-25 16:59:52,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:59:52,458 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:59:52,473 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_897965c9-a629-41cf-8733-7208c8dc6e30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_segments.c[1107,1120] [2022-11-25 16:59:52,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:59:52,535 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:59:52,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:52 WrapperNode [2022-11-25 16:59:52,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:59:52,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:59:52,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:59:52,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:59:52,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:52" (1/1) ... [2022-11-25 16:59:52,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:52" (1/1) ... [2022-11-25 16:59:52,581 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 155 [2022-11-25 16:59:52,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:59:52,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:59:52,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:59:52,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:59:52,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:52" (1/1) ... [2022-11-25 16:59:52,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:52" (1/1) ... [2022-11-25 16:59:52,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:52" (1/1) ... [2022-11-25 16:59:52,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:52" (1/1) ... [2022-11-25 16:59:52,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:52" (1/1) ... [2022-11-25 16:59:52,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:52" (1/1) ... [2022-11-25 16:59:52,609 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:52" (1/1) ... [2022-11-25 16:59:52,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:52" (1/1) ... [2022-11-25 16:59:52,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:59:52,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:59:52,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:59:52,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:59:52,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:52" (1/1) ... [2022-11-25 16:59:52,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:59:52,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:59:52,670 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:59:52,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:59:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:59:52,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:59:52,920 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:59:52,925 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:59:53,164 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:59:53,171 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:59:53,183 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 16:59:53,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:59:53 BoogieIcfgContainer [2022-11-25 16:59:53,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:59:53,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:59:53,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:59:53,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:59:53,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:59:52" (1/3) ... [2022-11-25 16:59:53,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ce457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:59:53, skipping insertion in model container [2022-11-25 16:59:53,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:52" (2/3) ... [2022-11-25 16:59:53,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ce457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:59:53, skipping insertion in model container [2022-11-25 16:59:53,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:59:53" (3/3) ... [2022-11-25 16:59:53,210 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_segments.c [2022-11-25 16:59:53,240 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:59:53,241 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 16:59:53,288 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:59:53,295 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;@6d040e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:59:53,295 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 16:59:53,299 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) [2022-11-25 16:59:53,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 16:59:53,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:53,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 16:59:53,308 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:59:53,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:53,314 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 16:59:53,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:59:53,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006410640] [2022-11-25 16:59:53,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:53,329 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 [2022-11-25 16:59:53,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:59:53,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 16:59:53,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 16:59:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:53,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-25 16:59:53,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:59:53,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:53,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:59:53,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:59:53,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006410640] [2022-11-25 16:59:53,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006410640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:53,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:53,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:59:53,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988683698] [2022-11-25 16:59:53,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:53,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:59:53,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:59:53,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:59:53,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:59:53,874 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) [2022-11-25 16:59:53,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:53,969 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 16:59:53,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:59:53,973 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 [2022-11-25 16:59:53,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:53,983 INFO L225 Difference]: With dead ends: 20 [2022-11-25 16:59:53,983 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 16:59:53,986 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 [2022-11-25 16:59:53,992 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:53,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:59:54,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 16:59:54,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 16:59:54,023 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) [2022-11-25 16:59:54,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 16:59:54,025 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 16:59:54,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:54,025 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 16:59:54,026 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) [2022-11-25 16:59:54,026 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 16:59:54,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 16:59:54,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:54,027 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:54,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-25 16:59:54,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 16:59:54,238 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:59:54,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:54,239 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 16:59:54,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:59:54,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990855023] [2022-11-25 16:59:54,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:54,240 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 [2022-11-25 16:59:54,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:59:54,263 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 16:59:54,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 16:59:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:54,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 79 conjunts are in the unsatisfiable core [2022-11-25 16:59:54,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:59:55,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:55,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:00:06,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:06,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:00:06,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990855023] [2022-11-25 17:00:06,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990855023] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:00:06,900 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:00:06,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 17:00:06,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776586463] [2022-11-25 17:00:06,904 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:00:06,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:00:06,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:00:06,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:00:06,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:00:06,908 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) [2022-11-25 17:00:07,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:00:07,059 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-25 17:00:07,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:00:07,060 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 [2022-11-25 17:00:07,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:00:07,060 INFO L225 Difference]: With dead ends: 16 [2022-11-25 17:00:07,061 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 17:00:07,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:00:07,062 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:00:07,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 18 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:00:07,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 17:00:07,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-25 17:00:07,067 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) [2022-11-25 17:00:07,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-25 17:00:07,068 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-25 17:00:07,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:00:07,069 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-25 17:00:07,069 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) [2022-11-25 17:00:07,069 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-25 17:00:07,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 17:00:07,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:00:07,070 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-25 17:00:07,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-25 17:00:07,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:07,282 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:00:07,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:07,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-25 17:00:07,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:00:07,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092463383] [2022-11-25 17:00:07,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:00:07,284 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 [2022-11-25 17:00:07,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:00:07,288 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:00:07,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:07,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:00:07,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:00:07,490 WARN L261 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 149 conjunts are in the unsatisfiable core [2022-11-25 17:00:07,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:00:09,306 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:09,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:00:28,575 WARN L233 SmtUtils]: Spent 8.15s on a formula simplification. DAG size of input: 489 DAG size of output: 355 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:07:52,192 WARN L233 SmtUtils]: Spent 5.32m on a formula simplification. DAG size of input: 2301 DAG size of output: 689 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:08:10,186 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:08:10,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:08:10,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092463383] [2022-11-25 17:08:10,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092463383] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:08:10,187 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:08:10,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-25 17:08:10,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600979844] [2022-11-25 17:08:10,188 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:08:10,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:08:10,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:08:10,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:08:10,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:08:10,191 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) [2022-11-25 17:08:10,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:10,624 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-25 17:08:10,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:08:10,625 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 [2022-11-25 17:08:10,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:10,626 INFO L225 Difference]: With dead ends: 19 [2022-11-25 17:08:10,626 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 17:08:10,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 334.4s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:08:10,628 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:10,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 22 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:08:10,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 17:08:10,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-25 17:08:10,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:10,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-25 17:08:10,635 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-25 17:08:10,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:10,636 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-25 17:08:10,636 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) [2022-11-25 17:08:10,636 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-25 17:08:10,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 17:08:10,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:10,637 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-25 17:08:10,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:08:10,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:08:10,839 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:10,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:10,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-25 17:08:10,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:08:10,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104350402] [2022-11-25 17:08:10,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:08:10,841 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 [2022-11-25 17:08:10,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:08:10,847 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:08:10,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897965c9-a629-41cf-8733-7208c8dc6e30/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 17:08:10,998 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-25 17:08:10,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:08:11,006 WARN L261 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 164 conjunts are in the unsatisfiable core [2022-11-25 17:08:11,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:08:16,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:08:33,569 WARN L233 SmtUtils]: Spent 8.24s on a formula simplification. DAG size of input: 394 DAG size of output: 387 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)