./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.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_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b6f04124f67c5651cab2fd16b093d1e93625905f2f46c2690fe886289b85946e --- 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 22:25:57,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:25:57,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:25:57,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:25:57,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:25:57,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:25:57,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:25:57,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:25:57,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:25:57,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:25:57,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:25:57,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:25:57,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:25:57,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:25:57,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:25:57,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:25:57,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:25:57,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:25:57,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:25:57,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:25:57,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:25:57,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:25:57,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:25:57,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:25:57,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:25:57,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:25:57,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:25:57,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:25:57,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:25:57,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:25:57,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:25:57,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:25:57,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:25:57,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:25:57,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:25:57,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:25:57,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:25:57,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:25:57,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:25:57,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:25:57,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:25:57,431 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:25:57,454 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:25:57,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:25:57,455 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:25:57,455 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:25:57,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:25:57,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:25:57,456 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:25:57,456 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:25:57,457 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:25:57,457 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:25:57,457 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:25:57,457 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:25:57,458 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:25:57,458 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:25:57,458 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:25:57,458 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:25:57,459 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:25:57,459 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:25:57,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:25:57,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:25:57,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:25:57,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:25:57,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:25:57,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:25:57,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:25:57,461 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:25:57,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:25:57,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:25:57,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:25:57,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:25:57,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:25:57,463 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:25:57,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:25:57,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:25:57,463 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:25:57,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:25:57,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:25:57,464 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:25:57,464 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6f04124f67c5651cab2fd16b093d1e93625905f2f46c2690fe886289b85946e [2022-11-25 22:25:57,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:25:57,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:25:57,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:25:57,782 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:25:57,783 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:25:57,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c [2022-11-25 22:26:00,767 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:26:01,120 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:26:01,121 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c [2022-11-25 22:26:01,144 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/data/2425a7a1d/5312e3ce67404f1fb1beea6c4ca45510/FLAG19e82324c [2022-11-25 22:26:01,168 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/data/2425a7a1d/5312e3ce67404f1fb1beea6c4ca45510 [2022-11-25 22:26:01,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:26:01,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:26:01,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:26:01,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:26:01,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:26:01,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:26:01" (1/1) ... [2022-11-25 22:26:01,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c8f1c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:01, skipping insertion in model container [2022-11-25 22:26:01,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:26:01" (1/1) ... [2022-11-25 22:26:01,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:26:01,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:26:01,582 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_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c[1107,1120] [2022-11-25 22:26:02,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:26:02,125 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:26:02,136 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_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c[1107,1120] [2022-11-25 22:26:02,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:26:02,371 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:26:02,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:02 WrapperNode [2022-11-25 22:26:02,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:26:02,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:26:02,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:26:02,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:26:02,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:02" (1/1) ... [2022-11-25 22:26:02,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:02" (1/1) ... [2022-11-25 22:26:02,616 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2973 [2022-11-25 22:26:02,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:26:02,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:26:02,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:26:02,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:26:02,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:02" (1/1) ... [2022-11-25 22:26:02,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:02" (1/1) ... [2022-11-25 22:26:02,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:02" (1/1) ... [2022-11-25 22:26:02,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:02" (1/1) ... [2022-11-25 22:26:02,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:02" (1/1) ... [2022-11-25 22:26:02,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:02" (1/1) ... [2022-11-25 22:26:02,758 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:02" (1/1) ... [2022-11-25 22:26:02,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:02" (1/1) ... [2022-11-25 22:26:02,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:26:02,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:26:02,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:26:02,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:26:02,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:02" (1/1) ... [2022-11-25 22:26:02,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:26:02,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:26:02,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:26:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:26:02,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:26:02,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:26:03,499 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:26:03,501 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:28:32,629 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:28:32,672 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:28:32,672 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:28:32,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:28:32 BoogieIcfgContainer [2022-11-25 22:28:32,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:28:32,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:28:32,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:28:32,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:28:32,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:26:01" (1/3) ... [2022-11-25 22:28:32,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1439eb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:28:32, skipping insertion in model container [2022-11-25 22:28:32,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:02" (2/3) ... [2022-11-25 22:28:32,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1439eb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:28:32, skipping insertion in model container [2022-11-25 22:28:32,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:28:32" (3/3) ... [2022-11-25 22:28:32,687 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Heap.c [2022-11-25 22:28:32,715 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:28:32,716 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:28:32,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:28:32,790 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=FINITE_AUTOMATA, 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;@56562abe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:28:32,791 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:28:32,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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 22:28:32,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 22:28:32,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:32,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 22:28:32,803 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:28:32,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:32,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1797488, now seen corresponding path program 1 times [2022-11-25 22:28:32,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:32,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092219991] [2022-11-25 22:28:32,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:32,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:28:33,239 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:28:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:28:33,469 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:28:33,475 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:28:33,476 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 22:28:33,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:28:33,484 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 22:28:33,488 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:28:33,539 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 22:28:33,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:28:33 BoogieIcfgContainer [2022-11-25 22:28:33,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:28:33,557 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:28:33,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:28:33,557 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:28:33,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:28:32" (3/4) ... [2022-11-25 22:28:33,564 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:28:33,564 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:28:33,567 INFO L158 Benchmark]: Toolchain (without parser) took 152391.96ms. Allocated memory was 155.2MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 111.3MB in the beginning and 588.3MB in the end (delta: -477.0MB). Peak memory consumption was 583.1MB. Max. memory is 16.1GB. [2022-11-25 22:28:33,568 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 109.1MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:28:33,569 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1193.40ms. Allocated memory is still 155.2MB. Free memory was 110.6MB in the beginning and 54.8MB in the end (delta: 55.8MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-11-25 22:28:33,570 INFO L158 Benchmark]: Boogie Procedure Inliner took 243.17ms. Allocated memory is still 155.2MB. Free memory was 54.8MB in the beginning and 100.5MB in the end (delta: -45.7MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-11-25 22:28:33,571 INFO L158 Benchmark]: Boogie Preprocessor took 186.78ms. Allocated memory is still 155.2MB. Free memory was 100.5MB in the beginning and 87.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 22:28:33,576 INFO L158 Benchmark]: RCFGBuilder took 149869.02ms. Allocated memory was 155.2MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 87.9MB in the beginning and 657.5MB in the end (delta: -569.6MB). Peak memory consumption was 728.2MB. Max. memory is 16.1GB. [2022-11-25 22:28:33,578 INFO L158 Benchmark]: TraceAbstraction took 878.80ms. Allocated memory is still 1.2GB. Free memory was 656.4MB in the beginning and 589.3MB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2022-11-25 22:28:33,579 INFO L158 Benchmark]: Witness Printer took 8.49ms. Allocated memory is still 1.2GB. Free memory was 589.3MB in the beginning and 588.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:28:33,587 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 109.1MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1193.40ms. Allocated memory is still 155.2MB. Free memory was 110.6MB in the beginning and 54.8MB in the end (delta: 55.8MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 243.17ms. Allocated memory is still 155.2MB. Free memory was 54.8MB in the beginning and 100.5MB in the end (delta: -45.7MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 186.78ms. Allocated memory is still 155.2MB. Free memory was 100.5MB in the beginning and 87.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 149869.02ms. Allocated memory was 155.2MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 87.9MB in the beginning and 657.5MB in the end (delta: -569.6MB). Peak memory consumption was 728.2MB. Max. memory is 16.1GB. * TraceAbstraction took 878.80ms. Allocated memory is still 1.2GB. Free memory was 656.4MB in the beginning and 589.3MB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Witness Printer took 8.49ms. Allocated memory is still 1.2GB. Free memory was 589.3MB in the beginning and 588.3MB 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 354, overapproximation of bitwiseOr at line 349, overapproximation of bitwiseAnd at line 211. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 2); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (2 - 1); [L31] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 32); [L32] const SORT_9 msb_SORT_9 = (SORT_9)1 << (32 - 1); [L34] const SORT_13 mask_SORT_13 = (SORT_13)-1 >> (sizeof(SORT_13) * 8 - 3); [L35] const SORT_13 msb_SORT_13 = (SORT_13)1 << (3 - 1); [L37] const SORT_55 mask_SORT_55 = (SORT_55)-1 >> (sizeof(SORT_55) * 8 - 29); [L38] const SORT_55 msb_SORT_55 = (SORT_55)1 << (29 - 1); [L40] const SORT_1 var_6 = 0; [L41] const SORT_9 var_11 = 0; [L42] const SORT_13 var_14 = 0; [L43] const SORT_1 var_27 = 1; [L44] const SORT_9 var_35 = 4; [L45] const SORT_3 var_38 = 0; [L46] const SORT_55 var_56 = 0; [L47] const SORT_9 var_60 = 1; [L48] const SORT_3 var_82 = 2; [L49] const SORT_3 var_87 = 3; [L50] const SORT_13 var_93 = 1; [L51] const SORT_13 var_96 = 3; [L52] const SORT_13 var_99 = 2; [L53] const SORT_13 var_103 = 5; [L54] const SORT_3 var_109 = 1; [L55] const SORT_13 var_117 = 7; [L56] const SORT_13 var_126 = 6; [L57] const SORT_13 var_130 = 4; [L59] SORT_1 input_2; [L60] SORT_3 input_4; [L61] SORT_3 input_5; [L62] SORT_1 input_81; [L63] SORT_1 input_106; [L64] SORT_3 input_107; [L65] SORT_13 input_137; [L66] SORT_13 input_138; [L67] SORT_13 input_139; [L68] SORT_13 input_150; [L69] SORT_13 input_151; [L70] SORT_3 input_191; [L71] SORT_3 input_192; [L72] SORT_3 input_193; [L73] SORT_3 input_199; [L74] SORT_3 input_200; [L75] SORT_3 input_201; [L76] SORT_3 input_202; [L77] SORT_3 input_203; [L78] SORT_3 input_251; [L79] SORT_3 input_263; [L80] SORT_3 input_281; [L81] SORT_3 input_282; [L82] SORT_3 input_290; [L83] SORT_3 input_316; [L84] SORT_3 input_341; [L85] SORT_3 input_342; [L86] SORT_3 input_343; [L87] SORT_3 input_360; [L88] SORT_3 input_361; [L89] SORT_3 input_369; [L90] SORT_3 input_377; [L91] SORT_3 input_378; [L92] SORT_3 input_397; [L93] SORT_3 input_398; [L94] SORT_3 input_399; [L95] SORT_3 input_407; [L96] SORT_3 input_414; [L97] SORT_3 input_425; [L98] SORT_3 input_426; [L99] SORT_3 input_435; [L100] SORT_3 input_440; [L101] SORT_3 input_444; [L102] SORT_3 input_445; [L103] SORT_3 input_474; [L104] SORT_3 input_475; [L105] SORT_3 input_483; [L106] SORT_3 input_487; [L107] SORT_3 input_488; [L108] SORT_3 input_507; [L109] SORT_3 input_508; [L110] SORT_3 input_509; [L111] SORT_3 input_517; [L112] SORT_3 input_519; [L113] SORT_3 input_523; [L114] SORT_3 input_524; [L115] SORT_3 input_533; [L116] SORT_3 input_538; [L117] SORT_3 input_542; [L118] SORT_3 input_543; [L119] SORT_3 input_572; [L120] SORT_3 input_573; [L121] SORT_3 input_581; [L122] SORT_3 input_585; [L123] SORT_3 input_586; [L124] SORT_3 input_605; [L125] SORT_3 input_606; [L126] SORT_3 input_607; [L127] SORT_3 input_615; [L128] SORT_3 input_617; [L129] SORT_3 input_621; [L130] SORT_3 input_622; [L131] SORT_3 input_631; [L132] SORT_3 input_636; [L133] SORT_3 input_640; [L134] SORT_3 input_641; [L135] SORT_3 input_670; [L136] SORT_3 input_671; [L137] SORT_3 input_679; [L138] SORT_3 input_683; [L139] SORT_3 input_684; [L140] SORT_3 input_703; [L141] SORT_3 input_704; [L142] SORT_3 input_705; [L143] SORT_3 input_713; [L144] SORT_3 input_715; [L145] SORT_3 input_719; [L146] SORT_3 input_720; [L147] SORT_3 input_729; [L148] SORT_3 input_734; [L149] SORT_3 input_738; [L150] SORT_3 input_739; [L151] SORT_13 input_766; [L152] SORT_13 input_767; [L153] SORT_13 input_768; [L154] SORT_13 input_774; [L155] SORT_13 input_775; [L156] SORT_13 input_792; [L157] SORT_13 input_803; [L158] SORT_13 input_804; [L159] SORT_13 input_806; [L160] SORT_13 input_815; [L161] SORT_13 input_833; [L162] SORT_13 input_834; [L163] SORT_13 input_835; [L164] SORT_13 input_841; [L165] SORT_13 input_842; [L166] SORT_13 input_859; [L167] SORT_13 input_868; [L168] SORT_13 input_869; [L169] SORT_13 input_871; [L170] SORT_13 input_880; [L171] SORT_13 input_884; [L173] SORT_1 state_7 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L174] SORT_13 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_13; [L175] SORT_3 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L176] SORT_3 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L177] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L178] SORT_3 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L179] SORT_3 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L180] SORT_3 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L181] SORT_3 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L182] SORT_13 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_13; [L183] SORT_13 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_13; [L185] SORT_1 init_8_arg_1 = var_6; [L186] state_7 = init_8_arg_1 [L187] SORT_13 init_16_arg_1 = var_14; [L188] state_15 = init_16_arg_1 [L189] SORT_3 init_40_arg_1 = var_38; [L190] state_39 = init_40_arg_1 [L191] SORT_3 init_42_arg_1 = var_38; [L192] state_41 = init_42_arg_1 [L193] SORT_3 init_44_arg_1 = var_38; [L194] state_43 = init_44_arg_1 [L195] SORT_3 init_46_arg_1 = var_38; [L196] state_45 = init_46_arg_1 [L197] SORT_3 init_48_arg_1 = var_38; [L198] state_47 = init_48_arg_1 [L199] SORT_3 init_50_arg_1 = var_38; [L200] state_49 = init_50_arg_1 [L201] SORT_3 init_52_arg_1 = var_38; [L202] state_51 = init_52_arg_1 [L203] SORT_13 init_54_arg_1 = var_14; [L204] state_53 = init_54_arg_1 [L205] SORT_13 init_76_arg_1 = var_14; [L206] state_75 = init_76_arg_1 VAL [init_16_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_76_arg_1=0, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_13=7, mask_SORT_3=3, mask_SORT_55=4294967295, mask_SORT_9=4294967295, msb_SORT_1=1, msb_SORT_13=4, msb_SORT_3=2, msb_SORT_55=268435456, msb_SORT_9=2147483648, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_7=0, state_75=0, var_103=5, var_109=1, var_11=0, var_117=7, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_6=0, var_60=1, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L209] input_2 = __VERIFIER_nondet_uchar() [L210] input_4 = __VERIFIER_nondet_uchar() [L211] input_4 = input_4 & mask_SORT_3 [L212] input_5 = __VERIFIER_nondet_uchar() [L213] input_81 = __VERIFIER_nondet_uchar() [L214] input_106 = __VERIFIER_nondet_uchar() [L215] input_107 = __VERIFIER_nondet_uchar() [L216] input_137 = __VERIFIER_nondet_uchar() [L217] input_138 = __VERIFIER_nondet_uchar() [L218] input_139 = __VERIFIER_nondet_uchar() [L219] input_150 = __VERIFIER_nondet_uchar() [L220] input_151 = __VERIFIER_nondet_uchar() [L221] input_191 = __VERIFIER_nondet_uchar() [L222] input_192 = __VERIFIER_nondet_uchar() [L223] input_193 = __VERIFIER_nondet_uchar() [L224] input_199 = __VERIFIER_nondet_uchar() [L225] input_200 = __VERIFIER_nondet_uchar() [L226] input_201 = __VERIFIER_nondet_uchar() [L227] input_202 = __VERIFIER_nondet_uchar() [L228] input_203 = __VERIFIER_nondet_uchar() [L229] input_251 = __VERIFIER_nondet_uchar() [L230] input_263 = __VERIFIER_nondet_uchar() [L231] input_281 = __VERIFIER_nondet_uchar() [L232] input_282 = __VERIFIER_nondet_uchar() [L233] input_290 = __VERIFIER_nondet_uchar() [L234] input_316 = __VERIFIER_nondet_uchar() [L235] input_341 = __VERIFIER_nondet_uchar() [L236] input_342 = __VERIFIER_nondet_uchar() [L237] input_343 = __VERIFIER_nondet_uchar() [L238] input_360 = __VERIFIER_nondet_uchar() [L239] input_361 = __VERIFIER_nondet_uchar() [L240] input_369 = __VERIFIER_nondet_uchar() [L241] input_377 = __VERIFIER_nondet_uchar() [L242] input_378 = __VERIFIER_nondet_uchar() [L243] input_397 = __VERIFIER_nondet_uchar() [L244] input_398 = __VERIFIER_nondet_uchar() [L245] input_399 = __VERIFIER_nondet_uchar() [L246] input_407 = __VERIFIER_nondet_uchar() [L247] input_414 = __VERIFIER_nondet_uchar() [L248] input_425 = __VERIFIER_nondet_uchar() [L249] input_426 = __VERIFIER_nondet_uchar() [L250] input_435 = __VERIFIER_nondet_uchar() [L251] input_440 = __VERIFIER_nondet_uchar() [L252] input_444 = __VERIFIER_nondet_uchar() [L253] input_445 = __VERIFIER_nondet_uchar() [L254] input_474 = __VERIFIER_nondet_uchar() [L255] input_475 = __VERIFIER_nondet_uchar() [L256] input_483 = __VERIFIER_nondet_uchar() [L257] input_487 = __VERIFIER_nondet_uchar() [L258] input_488 = __VERIFIER_nondet_uchar() [L259] input_507 = __VERIFIER_nondet_uchar() [L260] input_508 = __VERIFIER_nondet_uchar() [L261] input_509 = __VERIFIER_nondet_uchar() [L262] input_517 = __VERIFIER_nondet_uchar() [L263] input_519 = __VERIFIER_nondet_uchar() [L264] input_523 = __VERIFIER_nondet_uchar() [L265] input_524 = __VERIFIER_nondet_uchar() [L266] input_533 = __VERIFIER_nondet_uchar() [L267] input_538 = __VERIFIER_nondet_uchar() [L268] input_542 = __VERIFIER_nondet_uchar() [L269] input_543 = __VERIFIER_nondet_uchar() [L270] input_572 = __VERIFIER_nondet_uchar() [L271] input_573 = __VERIFIER_nondet_uchar() [L272] input_581 = __VERIFIER_nondet_uchar() [L273] input_585 = __VERIFIER_nondet_uchar() [L274] input_586 = __VERIFIER_nondet_uchar() [L275] input_605 = __VERIFIER_nondet_uchar() [L276] input_606 = __VERIFIER_nondet_uchar() [L277] input_607 = __VERIFIER_nondet_uchar() [L278] input_615 = __VERIFIER_nondet_uchar() [L279] input_617 = __VERIFIER_nondet_uchar() [L280] input_621 = __VERIFIER_nondet_uchar() [L281] input_622 = __VERIFIER_nondet_uchar() [L282] input_631 = __VERIFIER_nondet_uchar() [L283] input_636 = __VERIFIER_nondet_uchar() [L284] input_640 = __VERIFIER_nondet_uchar() [L285] input_641 = __VERIFIER_nondet_uchar() [L286] input_670 = __VERIFIER_nondet_uchar() [L287] input_671 = __VERIFIER_nondet_uchar() [L288] input_679 = __VERIFIER_nondet_uchar() [L289] input_683 = __VERIFIER_nondet_uchar() [L290] input_684 = __VERIFIER_nondet_uchar() [L291] input_703 = __VERIFIER_nondet_uchar() [L292] input_704 = __VERIFIER_nondet_uchar() [L293] input_705 = __VERIFIER_nondet_uchar() [L294] input_713 = __VERIFIER_nondet_uchar() [L295] input_715 = __VERIFIER_nondet_uchar() [L296] input_719 = __VERIFIER_nondet_uchar() [L297] input_720 = __VERIFIER_nondet_uchar() [L298] input_729 = __VERIFIER_nondet_uchar() [L299] input_734 = __VERIFIER_nondet_uchar() [L300] input_738 = __VERIFIER_nondet_uchar() [L301] input_739 = __VERIFIER_nondet_uchar() [L302] input_766 = __VERIFIER_nondet_uchar() [L303] input_767 = __VERIFIER_nondet_uchar() [L304] input_768 = __VERIFIER_nondet_uchar() [L305] input_774 = __VERIFIER_nondet_uchar() [L306] input_775 = __VERIFIER_nondet_uchar() [L307] input_792 = __VERIFIER_nondet_uchar() [L308] input_803 = __VERIFIER_nondet_uchar() [L309] input_804 = __VERIFIER_nondet_uchar() [L310] input_806 = __VERIFIER_nondet_uchar() [L311] input_815 = __VERIFIER_nondet_uchar() [L312] input_833 = __VERIFIER_nondet_uchar() [L313] input_834 = __VERIFIER_nondet_uchar() [L314] input_835 = __VERIFIER_nondet_uchar() [L315] input_841 = __VERIFIER_nondet_uchar() [L316] input_842 = __VERIFIER_nondet_uchar() [L317] input_859 = __VERIFIER_nondet_uchar() [L318] input_868 = __VERIFIER_nondet_uchar() [L319] input_869 = __VERIFIER_nondet_uchar() [L320] input_871 = __VERIFIER_nondet_uchar() [L321] input_880 = __VERIFIER_nondet_uchar() [L322] input_884 = __VERIFIER_nondet_uchar() [L325] SORT_1 var_10_arg_0 = state_7; [L326] var_10_arg_0 = var_10_arg_0 & mask_SORT_1 [L327] SORT_9 var_10 = var_10_arg_0; [L328] SORT_9 var_12_arg_0 = var_10; [L329] SORT_9 var_12_arg_1 = var_11; [L330] SORT_1 var_12 = var_12_arg_0 == var_12_arg_1; [L331] SORT_13 var_17_arg_0 = state_15; [L332] SORT_1 var_17 = var_17_arg_0 >> 2; [L333] SORT_1 var_18_arg_0 = var_17; [L334] var_18_arg_0 = var_18_arg_0 & mask_SORT_1 [L335] SORT_9 var_18 = var_18_arg_0; [L336] SORT_9 var_19_arg_0 = var_18; [L337] SORT_9 var_19_arg_1 = var_11; [L338] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L339] SORT_13 var_20_arg_0 = state_15; [L340] SORT_3 var_20 = var_20_arg_0 >> 0; [L341] SORT_3 var_21_arg_0 = var_20; [L342] var_21_arg_0 = var_21_arg_0 & mask_SORT_3 [L343] SORT_9 var_21 = var_21_arg_0; [L344] SORT_9 var_22_arg_0 = var_21; [L345] SORT_9 var_22_arg_1 = var_11; [L346] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L347] SORT_1 var_23_arg_0 = var_19; [L348] SORT_1 var_23_arg_1 = var_22; [L349] SORT_1 var_23 = var_23_arg_0 | var_23_arg_1; [L350] SORT_1 var_24_arg_0 = var_12; [L351] SORT_1 var_24_arg_1 = var_23; [L352] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L353] SORT_1 var_28_arg_0 = var_24; [L354] SORT_1 var_28 = ~var_28_arg_0; [L355] SORT_1 var_29_arg_0 = var_27; [L356] SORT_1 var_29_arg_1 = var_28; [L357] SORT_1 var_29 = var_29_arg_0 & var_29_arg_1; [L358] var_29 = var_29 & mask_SORT_1 [L359] SORT_1 bad_30_arg_0 = var_29; [L360] CALL __VERIFIER_assert(!(bad_30_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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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=7occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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 22:28:33,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b6f04124f67c5651cab2fd16b093d1e93625905f2f46c2690fe886289b85946e --- 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 22:28:36,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:28:36,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:28:36,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:28:36,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:28:36,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:28:36,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:28:36,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:28:36,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:28:36,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:28:36,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:28:36,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:28:36,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:28:36,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:28:36,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:28:36,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:28:36,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:28:36,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:28:36,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:28:36,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:28:36,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:28:36,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:28:36,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:28:36,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:28:36,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:28:36,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:28:36,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:28:36,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:28:36,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:28:36,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:28:36,512 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:28:36,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:28:36,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:28:36,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:28:36,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:28:36,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:28:36,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:28:36,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:28:36,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:28:36,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:28:36,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:28:36,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-25 22:28:36,595 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:28:36,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:28:36,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:28:36,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:28:36,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:28:36,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:28:36,600 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:28:36,601 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:28:36,601 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:28:36,601 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:28:36,603 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:28:36,603 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:28:36,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:28:36,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:28:36,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:28:36,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:28:36,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:28:36,606 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:28:36,606 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:28:36,607 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:28:36,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:28:36,608 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:28:36,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:28:36,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:28:36,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:28:36,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:28:36,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:28:36,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:28:36,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:28:36,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:28:36,611 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:28:36,611 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:28:36,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:28:36,612 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:28:36,612 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:28:36,613 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6f04124f67c5651cab2fd16b093d1e93625905f2f46c2690fe886289b85946e [2022-11-25 22:28:37,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:28:37,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:28:37,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:28:37,133 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:28:37,135 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:28:37,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c [2022-11-25 22:28:40,303 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:28:40,788 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:28:40,789 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c [2022-11-25 22:28:40,812 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/data/b851625e3/73f8c17d274545de9f1cc8a0d31b15b1/FLAG20e6ebb22 [2022-11-25 22:28:40,844 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/data/b851625e3/73f8c17d274545de9f1cc8a0d31b15b1 [2022-11-25 22:28:40,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:28:40,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:28:40,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:28:40,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:28:40,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:28:40,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:28:40" (1/1) ... [2022-11-25 22:28:40,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794e6e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:40, skipping insertion in model container [2022-11-25 22:28:40,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:28:40" (1/1) ... [2022-11-25 22:28:40,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:28:40,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:28:41,281 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_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c[1107,1120] [2022-11-25 22:28:41,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:28:41,764 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:28:41,777 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_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c[1107,1120] [2022-11-25 22:28:41,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:28:41,990 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:28:41,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:41 WrapperNode [2022-11-25 22:28:41,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:28:41,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:28:41,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:28:41,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:28:42,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:41" (1/1) ... [2022-11-25 22:28:42,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:41" (1/1) ... [2022-11-25 22:28:42,214 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2973 [2022-11-25 22:28:42,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:28:42,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:28:42,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:28:42,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:28:42,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:41" (1/1) ... [2022-11-25 22:28:42,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:41" (1/1) ... [2022-11-25 22:28:42,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:41" (1/1) ... [2022-11-25 22:28:42,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:41" (1/1) ... [2022-11-25 22:28:42,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:41" (1/1) ... [2022-11-25 22:28:42,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:41" (1/1) ... [2022-11-25 22:28:42,390 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:41" (1/1) ... [2022-11-25 22:28:42,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:41" (1/1) ... [2022-11-25 22:28:42,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:28:42,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:28:42,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:28:42,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:28:42,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:41" (1/1) ... [2022-11-25 22:28:42,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:28:42,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:28:42,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:28:42,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:28:42,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:28:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:28:43,495 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:28:43,497 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:28:48,919 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:28:48,927 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:28:48,927 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:28:48,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:28:48 BoogieIcfgContainer [2022-11-25 22:28:48,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:28:48,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:28:48,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:28:48,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:28:48,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:28:40" (1/3) ... [2022-11-25 22:28:48,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782b9a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:28:48, skipping insertion in model container [2022-11-25 22:28:48,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:41" (2/3) ... [2022-11-25 22:28:48,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782b9a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:28:48, skipping insertion in model container [2022-11-25 22:28:48,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:28:48" (3/3) ... [2022-11-25 22:28:48,939 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Heap.c [2022-11-25 22:28:48,960 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:28:48,961 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:28:49,027 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:28:49,034 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=FINITE_AUTOMATA, 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;@51342fbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:28:49,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:28:49,039 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 22:28:49,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:28:49,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:49,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:28:49,044 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:28:49,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:49,050 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 22:28:49,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:28:49,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669375070] [2022-11-25 22:28:49,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:49,066 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 22:28:49,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:28:49,071 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/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 22:28:49,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/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 22:28:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:49,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-25 22:28:49,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:28:50,050 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 22:28:50,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:28:50,051 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:28:50,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669375070] [2022-11-25 22:28:50,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669375070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:28:50,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:28:50,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:28:50,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666862523] [2022-11-25 22:28:50,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:50,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:28:50,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:28:50,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:28:50,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:28:50,095 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 22:28:50,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:50,653 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 22:28:50,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:28:50,657 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 22:28:50,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:50,663 INFO L225 Difference]: With dead ends: 20 [2022-11-25 22:28:50,663 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 22:28:50,665 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 22:28:50,669 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:50,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 22:28:50,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 22:28:50,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 22:28:50,700 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 22:28:50,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 22:28:50,702 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 22:28:50,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:50,703 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 22:28:50,703 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 22:28:50,703 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 22:28:50,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:28:50,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:50,704 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 22:28:50,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:28:50,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/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 22:28:50,918 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:28:50,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:50,918 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 22:28:50,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:28:50,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885657356] [2022-11-25 22:28:50,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:50,927 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 22:28:50,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:28:50,928 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/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 22:28:50,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e8abae-001c-4b2f-9b5b-8e2112a647ff/bin/utaipan-ByfvJB40ur/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 22:28:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:52,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 2755 conjuncts, 260 conjunts are in the unsatisfiable core [2022-11-25 22:28:52,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:28:58,546 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 22:28:58,547 INFO L328 TraceCheckSpWp]: Computing backward predicates...