./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 71117c9c67f985d05d0c9859b116d512376f478c1182a53aad610245b01d40e1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:26:22,440 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:26:22,504 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 19:26:22,509 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:26:22,509 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:26:22,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:26:22,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:26:22,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:26:22,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:26:22,536 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:26:22,536 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:26:22,537 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:26:22,537 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:26:22,538 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:26:22,538 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:26:22,539 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:26:22,539 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:26:22,540 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:26:22,540 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:26:22,541 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:26:22,541 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:26:22,542 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:26:22,543 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:26:22,543 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:26:22,543 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:26:22,544 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:26:22,544 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:26:22,545 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:26:22,545 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:26:22,545 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:26:22,546 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:26:22,546 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:26:22,547 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:26:22,547 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:26:22,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:26:22,548 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:26:22,548 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:26:22,548 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:26:22,548 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:26:22,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:26:22,548 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:26:22,549 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:26:22,549 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:26:22,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:26:22,549 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71117c9c67f985d05d0c9859b116d512376f478c1182a53aad610245b01d40e1 [2023-12-02 19:26:22,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:26:22,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:26:22,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:26:22,790 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:26:22,790 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:26:22,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c [2023-12-02 19:26:25,551 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:26:25,839 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:26:25,840 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c [2023-12-02 19:26:25,858 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/data/995bee99a/1a6d697c10e6409f9aa2656e58ed0ed6/FLAG67e560894 [2023-12-02 19:26:25,873 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/data/995bee99a/1a6d697c10e6409f9aa2656e58ed0ed6 [2023-12-02 19:26:25,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:26:25,877 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:26:25,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:26:25,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:26:25,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:26:25,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:26:25" (1/1) ... [2023-12-02 19:26:25,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@932becb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:25, skipping insertion in model container [2023-12-02 19:26:25,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:26:25" (1/1) ... [2023-12-02 19:26:25,966 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:26:26,142 WARN L240 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_b4fd841c-3b06-486b-8295-ecf23bd8fefd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c[1260,1273] [2023-12-02 19:26:26,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:26:26,461 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:26:26,473 WARN L240 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_b4fd841c-3b06-486b-8295-ecf23bd8fefd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c[1260,1273] [2023-12-02 19:26:26,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:26:26,676 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:26:26,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:26 WrapperNode [2023-12-02 19:26:26,677 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:26:26,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:26:26,678 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:26:26,678 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:26:26,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:26" (1/1) ... [2023-12-02 19:26:26,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:26" (1/1) ... [2023-12-02 19:26:27,250 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5664 [2023-12-02 19:26:27,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:26:27,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:26:27,251 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:26:27,251 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:26:27,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:26" (1/1) ... [2023-12-02 19:26:27,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:26" (1/1) ... [2023-12-02 19:26:27,322 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:26" (1/1) ... [2023-12-02 19:26:27,322 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:26" (1/1) ... [2023-12-02 19:26:27,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:26" (1/1) ... [2023-12-02 19:26:27,499 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:26" (1/1) ... [2023-12-02 19:26:27,563 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:26" (1/1) ... [2023-12-02 19:26:27,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:26" (1/1) ... [2023-12-02 19:26:27,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:26:27,693 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:26:27,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:26:27,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:26:27,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:26" (1/1) ... [2023-12-02 19:26:27,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:26:27,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:26:27,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:26:27,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:26:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:26:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:26:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:26:27,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:26:28,171 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:26:28,173 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:26:31,983 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:26:39,001 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:26:39,002 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:26:39,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:26:39 BoogieIcfgContainer [2023-12-02 19:26:39,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:26:39,005 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:26:39,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:26:39,007 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:26:39,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:26:25" (1/3) ... [2023-12-02 19:26:39,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501fcf66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:26:39, skipping insertion in model container [2023-12-02 19:26:39,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:26" (2/3) ... [2023-12-02 19:26:39,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501fcf66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:26:39, skipping insertion in model container [2023-12-02 19:26:39,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:26:39" (3/3) ... [2023-12-02 19:26:39,010 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_am2910_p4.c [2023-12-02 19:26:39,024 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:26:39,024 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:26:39,070 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:26:39,076 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=LoopHeads, 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;@f2d9cc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:26:39,076 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:26:39,080 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) [2023-12-02 19:26:39,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 19:26:39,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:26:39,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 19:26:39,086 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:26:39,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:26:39,091 INFO L85 PathProgramCache]: Analyzing trace with hash 196073624, now seen corresponding path program 1 times [2023-12-02 19:26:39,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:26:39,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840193696] [2023-12-02 19:26:39,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:26:39,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:26:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:26:39,720 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 19:26:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:26:40,113 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 19:26:40,115 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 19:26:40,116 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 19:26:40,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:26:40,122 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 19:26:40,127 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 19:26:40,154 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-02 19:26:40,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:26:40 BoogieIcfgContainer [2023-12-02 19:26:40,167 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 19:26:40,168 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 19:26:40,168 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 19:26:40,168 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 19:26:40,168 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:26:39" (3/4) ... [2023-12-02 19:26:40,170 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 19:26:40,171 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 19:26:40,173 INFO L158 Benchmark]: Toolchain (without parser) took 14295.55ms. Allocated memory was 197.1MB in the beginning and 1.1GB in the end (delta: 859.8MB). Free memory was 155.0MB in the beginning and 389.3MB in the end (delta: -234.3MB). Peak memory consumption was 628.6MB. Max. memory is 16.1GB. [2023-12-02 19:26:40,173 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:26:40,174 INFO L158 Benchmark]: CACSL2BoogieTranslator took 798.73ms. Allocated memory is still 197.1MB. Free memory was 155.0MB in the beginning and 128.8MB in the end (delta: 26.2MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. [2023-12-02 19:26:40,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 572.37ms. Allocated memory was 197.1MB in the beginning and 272.6MB in the end (delta: 75.5MB). Free memory was 128.8MB in the beginning and 150.3MB in the end (delta: -21.4MB). Peak memory consumption was 115.7MB. Max. memory is 16.1GB. [2023-12-02 19:26:40,175 INFO L158 Benchmark]: Boogie Preprocessor took 442.34ms. Allocated memory is still 272.6MB. Free memory was 150.3MB in the beginning and 105.2MB in the end (delta: 45.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-12-02 19:26:40,176 INFO L158 Benchmark]: RCFGBuilder took 11309.89ms. Allocated memory was 272.6MB in the beginning and 1.1GB in the end (delta: 784.3MB). Free memory was 105.2MB in the beginning and 523.5MB in the end (delta: -418.4MB). Peak memory consumption was 698.4MB. Max. memory is 16.1GB. [2023-12-02 19:26:40,177 INFO L158 Benchmark]: TraceAbstraction took 1161.95ms. Allocated memory is still 1.1GB. Free memory was 522.5MB in the beginning and 390.4MB in the end (delta: 132.1MB). Peak memory consumption was 132.1MB. Max. memory is 16.1GB. [2023-12-02 19:26:40,177 INFO L158 Benchmark]: Witness Printer took 3.96ms. Allocated memory is still 1.1GB. Free memory is still 390.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:26:40,180 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 798.73ms. Allocated memory is still 197.1MB. Free memory was 155.0MB in the beginning and 128.8MB in the end (delta: 26.2MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 572.37ms. Allocated memory was 197.1MB in the beginning and 272.6MB in the end (delta: 75.5MB). Free memory was 128.8MB in the beginning and 150.3MB in the end (delta: -21.4MB). Peak memory consumption was 115.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 442.34ms. Allocated memory is still 272.6MB. Free memory was 150.3MB in the beginning and 105.2MB in the end (delta: 45.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * RCFGBuilder took 11309.89ms. Allocated memory was 272.6MB in the beginning and 1.1GB in the end (delta: 784.3MB). Free memory was 105.2MB in the beginning and 523.5MB in the end (delta: -418.4MB). Peak memory consumption was 698.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1161.95ms. Allocated memory is still 1.1GB. Free memory was 522.5MB in the beginning and 390.4MB in the end (delta: 132.1MB). Peak memory consumption was 132.1MB. Max. memory is 16.1GB. * Witness Printer took 3.96ms. Allocated memory is still 1.1GB. Free memory is still 390.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 176, overapproximation of bitwiseAnd at line 156. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 12); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (12 - 1); [L29] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 1); [L30] const SORT_8 msb_SORT_8 = (SORT_8)1 << (1 - 1); [L32] const SORT_13 mask_SORT_13 = (SORT_13)-1 >> (sizeof(SORT_13) * 8 - 4); [L33] const SORT_13 msb_SORT_13 = (SORT_13)1 << (4 - 1); [L35] const SORT_22 mask_SORT_22 = (SORT_22)-1 >> (sizeof(SORT_22) * 8 - 3); [L36] const SORT_22 msb_SORT_22 = (SORT_22)1 << (3 - 1); [L38] const SORT_310 mask_SORT_310 = (SORT_310)-1 >> (sizeof(SORT_310) * 8 - 2); [L39] const SORT_310 msb_SORT_310 = (SORT_310)1 << (2 - 1); [L41] const SORT_314 mask_SORT_314 = (SORT_314)-1 >> (sizeof(SORT_314) * 8 - 5); [L42] const SORT_314 msb_SORT_314 = (SORT_314)1 << (5 - 1); [L44] const SORT_316 mask_SORT_316 = (SORT_316)-1 >> (sizeof(SORT_316) * 8 - 6); [L45] const SORT_316 msb_SORT_316 = (SORT_316)1 << (6 - 1); [L47] const SORT_318 mask_SORT_318 = (SORT_318)-1 >> (sizeof(SORT_318) * 8 - 7); [L48] const SORT_318 msb_SORT_318 = (SORT_318)1 << (7 - 1); [L50] const SORT_320 mask_SORT_320 = (SORT_320)-1 >> (sizeof(SORT_320) * 8 - 8); [L51] const SORT_320 msb_SORT_320 = (SORT_320)1 << (8 - 1); [L53] const SORT_322 mask_SORT_322 = (SORT_322)-1 >> (sizeof(SORT_322) * 8 - 9); [L54] const SORT_322 msb_SORT_322 = (SORT_322)1 << (9 - 1); [L56] const SORT_324 mask_SORT_324 = (SORT_324)-1 >> (sizeof(SORT_324) * 8 - 10); [L57] const SORT_324 msb_SORT_324 = (SORT_324)1 << (10 - 1); [L59] const SORT_326 mask_SORT_326 = (SORT_326)-1 >> (sizeof(SORT_326) * 8 - 11); [L60] const SORT_326 msb_SORT_326 = (SORT_326)1 << (11 - 1); [L62] const SORT_8 var_18 = 0; [L63] const SORT_22 var_23 = 0; [L64] const SORT_22 var_26 = 4; [L65] const SORT_22 var_29 = 5; [L66] const SORT_1 var_32 = 0; [L67] const SORT_1 var_35 = 2730; [L68] const SORT_8 var_42 = 1; [L69] const SORT_13 var_65 = 2; [L70] const SORT_13 var_70 = 9; [L71] const SORT_13 var_78 = 15; [L72] const SORT_13 var_83 = 1; [L73] const SORT_13 var_85 = 3; [L74] const SORT_13 var_88 = 5; [L75] const SORT_13 var_91 = 7; [L76] const SORT_13 var_94 = 11; [L77] const SORT_13 var_118 = 8; [L78] const SORT_13 var_122 = 10; [L79] const SORT_13 var_126 = 13; [L80] const SORT_13 var_137 = 4; [L81] const SORT_13 var_139 = 12; [L82] const SORT_13 var_142 = 14; [L83] const SORT_13 var_148 = 6; [L84] const SORT_13 var_175 = 0; [L85] const SORT_22 var_221 = 1; [L86] const SORT_1 var_250 = 4095; [L87] const SORT_1 var_580 = 1; [L88] const SORT_326 var_598 = 0; [L90] SORT_1 input_2; [L91] SORT_1 input_3; [L92] SORT_1 input_4; [L93] SORT_1 input_5; [L94] SORT_1 input_6; [L95] SORT_1 input_7; [L96] SORT_8 input_9; [L97] SORT_8 input_10; [L98] SORT_8 input_11; [L99] SORT_1 input_12; [L100] SORT_13 input_14; [L101] SORT_8 input_15; [L102] SORT_8 input_16; [L103] SORT_8 input_17; [L104] SORT_1 input_217; [L105] SORT_1 input_237; [L106] SORT_22 input_240; [L108] EXPR __VERIFIER_nondet_uchar() & mask_SORT_8 [L108] SORT_8 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_8; [L109] EXPR __VERIFIER_nondet_uchar() & mask_SORT_22 [L109] SORT_22 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_22; [L110] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L110] SORT_1 state_33 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L111] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L111] SORT_1 state_38 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L112] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L112] SORT_1 state_40 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L113] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L113] SORT_1 state_44 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L114] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L114] SORT_1 state_46 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L115] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L115] SORT_1 state_50 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L116] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L116] SORT_1 state_52 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L117] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L117] SORT_1 state_67 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L118] EXPR __VERIFIER_nondet_uchar() & mask_SORT_22 [L118] SORT_22 state_106 = __VERIFIER_nondet_uchar() & mask_SORT_22; [L119] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L119] SORT_1 state_135 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L121] SORT_8 init_20_arg_1 = var_18; [L122] state_19 = init_20_arg_1 [L123] SORT_22 init_25_arg_1 = var_23; [L124] state_24 = init_25_arg_1 [L125] SORT_1 init_34_arg_1 = var_32; [L126] state_33 = init_34_arg_1 [L127] SORT_1 init_39_arg_1 = var_32; [L128] state_38 = init_39_arg_1 [L129] SORT_1 init_41_arg_1 = var_32; [L130] state_40 = init_41_arg_1 [L131] SORT_1 init_45_arg_1 = var_32; [L132] state_44 = init_45_arg_1 [L133] SORT_1 init_47_arg_1 = var_32; [L134] state_46 = init_47_arg_1 [L135] SORT_1 init_51_arg_1 = var_32; [L136] state_50 = init_51_arg_1 [L137] SORT_1 init_53_arg_1 = var_32; [L138] state_52 = init_53_arg_1 [L139] SORT_1 init_68_arg_1 = var_32; [L140] state_67 = init_68_arg_1 [L141] SORT_22 init_107_arg_1 = var_23; [L142] state_106 = init_107_arg_1 [L143] SORT_1 init_136_arg_1 = var_32; [L144] state_135 = init_136_arg_1 VAL [init_107_arg_1=0, init_136_arg_1=0, init_20_arg_1=0, init_25_arg_1=0, init_34_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_68_arg_1=0, mask_SORT_13=15, mask_SORT_1=4095, mask_SORT_22=7, mask_SORT_310=3, mask_SORT_314=31, mask_SORT_316=63, mask_SORT_318=127, mask_SORT_320=255, mask_SORT_322=511, mask_SORT_324=1023, mask_SORT_326=2047, mask_SORT_8=1, msb_SORT_13=8, msb_SORT_1=2048, msb_SORT_22=4, msb_SORT_310=2, msb_SORT_314=16, msb_SORT_316=32, msb_SORT_318=64, msb_SORT_320=128, msb_SORT_322=256, msb_SORT_324=512, msb_SORT_326=1024, msb_SORT_8=1, state_106=0, state_135=0, state_19=0, state_24=0, state_33=0, state_38=0, state_40=0, state_44=0, state_46=0, state_50=0, state_52=0, state_67=0, var_118=8, var_122=10, var_126=13, var_137=4, var_139=12, var_142=14, var_148=6, var_175=0, var_18=0, var_221=1, var_23=0, var_250=4095, var_26=4, var_29=5, var_32=0, var_35=2730, var_42=1, var_580=1, var_598=0, var_65=2, var_70=9, var_78=15, var_83=1, var_85=3, var_88=5, var_91=7, var_94=11] [L147] input_2 = __VERIFIER_nondet_ushort() [L148] input_3 = __VERIFIER_nondet_ushort() [L149] input_4 = __VERIFIER_nondet_ushort() [L150] input_5 = __VERIFIER_nondet_ushort() [L151] input_6 = __VERIFIER_nondet_ushort() [L152] input_7 = __VERIFIER_nondet_ushort() [L153] input_9 = __VERIFIER_nondet_uchar() [L154] input_10 = __VERIFIER_nondet_uchar() [L155] input_11 = __VERIFIER_nondet_uchar() [L156] EXPR input_11 & mask_SORT_8 [L156] input_11 = input_11 & mask_SORT_8 [L157] input_12 = __VERIFIER_nondet_ushort() [L158] input_14 = __VERIFIER_nondet_uchar() [L159] EXPR input_14 & mask_SORT_13 [L159] input_14 = input_14 & mask_SORT_13 [L160] input_15 = __VERIFIER_nondet_uchar() [L161] input_16 = __VERIFIER_nondet_uchar() [L162] input_17 = __VERIFIER_nondet_uchar() [L163] input_217 = __VERIFIER_nondet_ushort() [L164] input_237 = __VERIFIER_nondet_ushort() [L165] input_240 = __VERIFIER_nondet_uchar() [L168] SORT_8 var_21_arg_0 = state_19; [L169] SORT_8 var_21_arg_1 = var_18; [L170] SORT_8 var_21 = var_21_arg_0 == var_21_arg_1; [L171] SORT_22 var_27_arg_0 = state_24; [L172] SORT_22 var_27_arg_1 = var_26; [L173] SORT_8 var_27 = var_27_arg_0 == var_27_arg_1; [L174] SORT_8 var_28_arg_0 = var_21; [L175] SORT_8 var_28_arg_1 = var_27; [L176] EXPR var_28_arg_0 | var_28_arg_1 [L176] SORT_8 var_28 = var_28_arg_0 | var_28_arg_1; [L177] SORT_22 var_30_arg_0 = state_24; [L178] SORT_22 var_30_arg_1 = var_29; [L179] SORT_8 var_30 = var_30_arg_0 == var_30_arg_1; [L180] SORT_8 var_31_arg_0 = var_28; [L181] SORT_8 var_31_arg_1 = var_30; [L182] EXPR var_31_arg_0 | var_31_arg_1 [L182] SORT_8 var_31 = var_31_arg_0 | var_31_arg_1; [L183] SORT_1 var_36_arg_0 = state_33; [L184] SORT_1 var_36_arg_1 = var_35; [L185] SORT_8 var_36 = var_36_arg_0 != var_36_arg_1; [L186] SORT_8 var_37_arg_0 = var_31; [L187] SORT_8 var_37_arg_1 = var_36; [L188] EXPR var_37_arg_0 | var_37_arg_1 [L188] SORT_8 var_37 = var_37_arg_0 | var_37_arg_1; [L189] SORT_8 var_55_arg_0 = var_42; [L190] SORT_1 var_55_arg_1 = input_7; [L191] SORT_1 var_55_arg_2 = input_6; [L192] SORT_1 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L193] SORT_8 var_54_arg_0 = var_42; [L194] SORT_1 var_54_arg_1 = state_52; [L195] SORT_1 var_54_arg_2 = state_50; [L196] SORT_1 var_54 = var_54_arg_0 ? var_54_arg_1 : var_54_arg_2; [L197] SORT_8 var_56_arg_0 = var_18; [L198] SORT_1 var_56_arg_1 = var_55; [L199] SORT_1 var_56_arg_2 = var_54; [L200] SORT_1 var_56 = var_56_arg_0 ? var_56_arg_1 : var_56_arg_2; [L201] SORT_8 var_48_arg_0 = var_42; [L202] SORT_1 var_48_arg_1 = state_46; [L203] SORT_1 var_48_arg_2 = state_44; [L204] SORT_1 var_48 = var_48_arg_0 ? var_48_arg_1 : var_48_arg_2; [L205] SORT_8 var_43_arg_0 = var_42; [L206] SORT_1 var_43_arg_1 = state_40; [L207] SORT_1 var_43_arg_2 = state_38; [L208] SORT_1 var_43 = var_43_arg_0 ? var_43_arg_1 : var_43_arg_2; [L209] SORT_8 var_49_arg_0 = var_18; [L210] SORT_1 var_49_arg_1 = var_48; [L211] SORT_1 var_49_arg_2 = var_43; [L212] SORT_1 var_49 = var_49_arg_0 ? var_49_arg_1 : var_49_arg_2; [L213] SORT_8 var_57_arg_0 = var_42; [L214] SORT_1 var_57_arg_1 = var_56; [L215] SORT_1 var_57_arg_2 = var_49; [L216] SORT_1 var_57 = var_57_arg_0 ? var_57_arg_1 : var_57_arg_2; [L217] EXPR var_57 & mask_SORT_1 [L217] var_57 = var_57 & mask_SORT_1 [L218] SORT_1 var_58_arg_0 = var_57; [L219] SORT_1 var_58_arg_1 = var_35; [L220] SORT_8 var_58 = var_58_arg_0 == var_58_arg_1; [L221] SORT_8 var_59_arg_0 = var_37; [L222] SORT_8 var_59_arg_1 = var_58; [L223] EXPR var_59_arg_0 | var_59_arg_1 [L223] SORT_8 var_59 = var_59_arg_0 | var_59_arg_1; [L224] SORT_8 var_62_arg_0 = var_59; [L225] SORT_8 var_62 = ~var_62_arg_0; [L226] SORT_8 var_63_arg_0 = var_42; [L227] SORT_8 var_63_arg_1 = var_62; [L228] EXPR var_63_arg_0 & var_63_arg_1 [L228] SORT_8 var_63 = var_63_arg_0 & var_63_arg_1; [L229] EXPR var_63 & mask_SORT_8 [L229] var_63 = var_63 & mask_SORT_8 [L230] SORT_8 bad_64_arg_0 = var_63; [L231] CALL __VERIFIER_assert(!(bad_64_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] 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: 1.1s, 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, 0.5s 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 [2023-12-02 19:26:40,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 71117c9c67f985d05d0c9859b116d512376f478c1182a53aad610245b01d40e1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:26:42,158 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:26:42,231 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-12-02 19:26:42,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:26:42,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:26:42,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:26:42,262 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:26:42,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:26:42,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:26:42,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:26:42,264 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:26:42,265 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:26:42,265 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:26:42,266 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:26:42,266 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:26:42,267 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:26:42,268 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:26:42,268 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:26:42,269 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:26:42,269 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:26:42,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:26:42,270 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:26:42,271 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 19:26:42,271 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 19:26:42,271 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 19:26:42,272 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:26:42,272 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:26:42,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:26:42,273 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 19:26:42,273 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:26:42,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:26:42,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:26:42,274 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:26:42,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:26:42,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:26:42,275 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 19:26:42,276 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 19:26:42,276 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:26:42,276 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:26:42,276 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:26:42,276 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:26:42,277 INFO L153 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_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71117c9c67f985d05d0c9859b116d512376f478c1182a53aad610245b01d40e1 [2023-12-02 19:26:42,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:26:42,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:26:42,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:26:42,581 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:26:42,581 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:26:42,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c [2023-12-02 19:26:45,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:26:45,661 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:26:45,662 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c [2023-12-02 19:26:45,679 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/data/34a695bc6/748b55da0e844ddcac40f84fbf79fa88/FLAGfcfbd0da7 [2023-12-02 19:26:45,692 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/data/34a695bc6/748b55da0e844ddcac40f84fbf79fa88 [2023-12-02 19:26:45,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:26:45,696 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:26:45,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:26:45,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:26:45,702 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:26:45,702 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:26:45" (1/1) ... [2023-12-02 19:26:45,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f9d8ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:45, skipping insertion in model container [2023-12-02 19:26:45,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:26:45" (1/1) ... [2023-12-02 19:26:45,769 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:26:45,929 WARN L240 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_b4fd841c-3b06-486b-8295-ecf23bd8fefd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c[1260,1273] [2023-12-02 19:26:46,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:26:46,242 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:26:46,251 WARN L240 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_b4fd841c-3b06-486b-8295-ecf23bd8fefd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c[1260,1273] [2023-12-02 19:26:46,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:26:46,401 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:26:46,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:46 WrapperNode [2023-12-02 19:26:46,402 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:26:46,402 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:26:46,402 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:26:46,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:26:46,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:46" (1/1) ... [2023-12-02 19:26:46,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:46" (1/1) ... [2023-12-02 19:26:46,558 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1854 [2023-12-02 19:26:46,558 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:26:46,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:26:46,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:26:46,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:26:46,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:46" (1/1) ... [2023-12-02 19:26:46,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:46" (1/1) ... [2023-12-02 19:26:46,582 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:46" (1/1) ... [2023-12-02 19:26:46,582 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:46" (1/1) ... [2023-12-02 19:26:46,626 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:46" (1/1) ... [2023-12-02 19:26:46,632 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:46" (1/1) ... [2023-12-02 19:26:46,642 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:46" (1/1) ... [2023-12-02 19:26:46,653 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:46" (1/1) ... [2023-12-02 19:26:46,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:26:46,669 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:26:46,669 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:26:46,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:26:46,670 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:46" (1/1) ... [2023-12-02 19:26:46,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:26:46,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:26:46,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:26:46,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:26:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:26:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 19:26:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:26:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:26:47,067 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:26:47,069 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:26:49,967 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:26:50,072 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:26:50,072 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:26:50,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:26:50 BoogieIcfgContainer [2023-12-02 19:26:50,073 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:26:50,075 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:26:50,076 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:26:50,079 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:26:50,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:26:45" (1/3) ... [2023-12-02 19:26:50,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e19c1e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:26:50, skipping insertion in model container [2023-12-02 19:26:50,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:46" (2/3) ... [2023-12-02 19:26:50,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e19c1e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:26:50, skipping insertion in model container [2023-12-02 19:26:50,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:26:50" (3/3) ... [2023-12-02 19:26:50,081 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_am2910_p4.c [2023-12-02 19:26:50,113 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:26:50,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:26:50,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:26:50,155 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=LoopHeads, 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;@5947b486, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:26:50,155 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:26:50,158 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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) [2023-12-02 19:26:50,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 19:26:50,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:26:50,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 19:26:50,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:26:50,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:26:50,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-02 19:26:50,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:26:50,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296780379] [2023-12-02 19:26:50,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:26:50,180 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 [2023-12-02 19:26:50,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:26:50,199 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 19:26:50,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 19:26:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:26:50,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 19:26:50,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:26:50,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:26:50,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:26:50,829 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:26:50,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296780379] [2023-12-02 19:26:50,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296780379] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:26:50,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:26:50,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:26:50,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973967000] [2023-12-02 19:26:50,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:26:50,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:26:50,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:26:50,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:26:50,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:26:50,863 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-12-02 19:26:51,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:26:51,138 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-02 19:26:51,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:26:51,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-12-02 19:26:51,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:26:51,145 INFO L225 Difference]: With dead ends: 16 [2023-12-02 19:26:51,146 INFO L226 Difference]: Without dead ends: 9 [2023-12-02 19:26:51,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:26:51,151 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:26:51,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 19:26:51,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-02 19:26:51,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-02 19:26:51,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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) [2023-12-02 19:26:51,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-02 19:26:51,176 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-02 19:26:51,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:26:51,176 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-02 19:26:51,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-12-02 19:26:51,177 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-02 19:26:51,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 19:26:51,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:26:51,177 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-02 19:26:51,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 19:26:51,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 19:26:51,380 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:26:51,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:26:51,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-12-02 19:26:51,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:26:51,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994327162] [2023-12-02 19:26:51,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:26:51,385 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 [2023-12-02 19:26:51,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:26:51,386 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 19:26:51,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 19:26:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:26:53,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 1652 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 19:26:53,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:26:54,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:26:54,191 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:26:55,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:26:55,051 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:26:55,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994327162] [2023-12-02 19:26:55,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994327162] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:26:55,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1343241325] [2023-12-02 19:26:55,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:26:55,053 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 19:26:55,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 19:26:55,058 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 19:26:55,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 19:26:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:26:56,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 1652 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 19:26:56,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:26:56,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:26:56,695 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:26:57,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:26:57,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1343241325] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:26:57,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4391274] [2023-12-02 19:26:57,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:26:57,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:26:57,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:26:57,379 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:26:57,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 19:26:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:26:58,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 1652 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 19:26:58,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:26:58,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:26:58,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:26:59,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:26:59,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4391274] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:26:59,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 19:26:59,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 5, 5] total 11 [2023-12-02 19:26:59,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429843862] [2023-12-02 19:26:59,118 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 19:26:59,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:26:59,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:26:59,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:26:59,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:26:59,121 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 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) [2023-12-02 19:26:59,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:26:59,739 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-12-02 19:26:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 19:26:59,739 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 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 7 [2023-12-02 19:26:59,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:26:59,740 INFO L225 Difference]: With dead ends: 14 [2023-12-02 19:26:59,740 INFO L226 Difference]: Without dead ends: 12 [2023-12-02 19:26:59,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-12-02 19:26:59,741 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:26:59,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 13 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 19:26:59,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-02 19:26:59,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-12-02 19:26:59,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2023-12-02 19:26:59,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-02 19:26:59,744 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-12-02 19:26:59,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:26:59,745 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-12-02 19:26:59,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 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) [2023-12-02 19:26:59,745 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-02 19:26:59,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 19:26:59,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:26:59,746 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-12-02 19:26:59,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 19:26:59,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 19:27:00,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 19:27:00,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 19:27:00,347 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:27:00,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:27:00,348 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-12-02 19:27:00,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:27:00,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059722003] [2023-12-02 19:27:00,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 19:27:00,354 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 [2023-12-02 19:27:00,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:27:00,355 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 19:27:00,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 19:27:06,218 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 19:27:06,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 19:27:06,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 3150 conjuncts, 61 conjunts are in the unsatisfiable core [2023-12-02 19:27:06,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:27:06,765 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:27:06,765 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:27:09,270 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:27:09,270 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:27:09,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059722003] [2023-12-02 19:27:09,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059722003] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:27:09,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [884949373] [2023-12-02 19:27:09,271 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 19:27:09,271 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 19:27:09,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 19:27:09,272 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 19:27:09,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 19:27:11,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 19:27:11,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 19:27:11,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 3150 conjuncts, 61 conjunts are in the unsatisfiable core [2023-12-02 19:27:11,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:27:11,881 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:27:11,881 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:27:17,976 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:27:17,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [884949373] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:27:17,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853565582] [2023-12-02 19:27:17,977 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 19:27:17,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:27:17,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:27:17,978 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:27:17,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fd841c-3b06-486b-8295-ecf23bd8fefd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 19:27:19,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 19:27:19,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 19:27:19,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 3150 conjuncts, 266 conjunts are in the unsatisfiable core [2023-12-02 19:27:19,162 INFO L285 TraceCheckSpWp]: Computing forward predicates...