./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/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_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/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_2c7c7230-a931-41be-a1e7-5c0b67506829/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 895ff1e019ffafaf8b2f8e3efbd16ea4845b2e4eac0a4db8b4c86c462883ae8c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:11:54,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:11:54,085 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 14:11:54,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:11:54,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:11:54,111 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:11:54,112 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:11:54,112 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:11:54,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:11:54,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:11:54,114 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:11:54,114 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:11:54,115 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:11:54,115 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:11:54,116 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:11:54,116 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:11:54,117 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:11:54,117 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:11:54,118 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:11:54,119 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:11:54,119 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:11:54,120 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:11:54,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:11:54,121 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:11:54,121 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:11:54,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:11:54,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:11:54,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:11:54,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:11:54,124 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:11:54,124 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:11:54,124 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:11:54,125 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:11:54,125 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:11:54,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:11:54,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:11:54,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:11:54,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:11:54,126 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:11:54,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:11:54,126 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:11:54,127 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:11:54,127 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:11:54,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:11:54,127 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_2c7c7230-a931-41be-a1e7-5c0b67506829/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 895ff1e019ffafaf8b2f8e3efbd16ea4845b2e4eac0a4db8b4c86c462883ae8c [2023-12-02 14:11:54,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:11:54,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:11:54,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:11:54,349 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:11:54,349 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:11:54,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c [2023-12-02 14:11:57,128 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:11:57,313 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:11:57,314 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c [2023-12-02 14:11:57,324 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/data/131e54a4d/a19be8d6497d45c28b5c30951bee718a/FLAG68e593bec [2023-12-02 14:11:57,339 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/data/131e54a4d/a19be8d6497d45c28b5c30951bee718a [2023-12-02 14:11:57,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:11:57,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:11:57,344 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:11:57,344 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:11:57,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:11:57,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:11:57" (1/1) ... [2023-12-02 14:11:57,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f54082d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:57, skipping insertion in model container [2023-12-02 14:11:57,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:11:57" (1/1) ... [2023-12-02 14:11:57,382 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:11:57,520 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_2c7c7230-a931-41be-a1e7-5c0b67506829/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c[1259,1272] [2023-12-02 14:11:57,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:11:57,605 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:11:57,615 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_2c7c7230-a931-41be-a1e7-5c0b67506829/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c[1259,1272] [2023-12-02 14:11:57,664 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:11:57,678 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:11:57,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:57 WrapperNode [2023-12-02 14:11:57,679 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:11:57,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:11:57,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:11:57,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:11:57,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:57" (1/1) ... [2023-12-02 14:11:57,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:57" (1/1) ... [2023-12-02 14:11:57,765 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 544 [2023-12-02 14:11:57,766 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:11:57,767 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:11:57,767 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:11:57,767 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:11:57,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:57" (1/1) ... [2023-12-02 14:11:57,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:57" (1/1) ... [2023-12-02 14:11:57,788 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:57" (1/1) ... [2023-12-02 14:11:57,788 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:57" (1/1) ... [2023-12-02 14:11:57,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:57" (1/1) ... [2023-12-02 14:11:57,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:57" (1/1) ... [2023-12-02 14:11:57,826 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:57" (1/1) ... [2023-12-02 14:11:57,831 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:57" (1/1) ... [2023-12-02 14:11:57,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:11:57,842 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:11:57,842 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:11:57,842 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:11:57,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:57" (1/1) ... [2023-12-02 14:11:57,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:11:57,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:11:57,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:11:57,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:11:57,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:11:57,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:11:57,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:11:57,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:11:58,029 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:11:58,031 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:11:58,653 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:11:59,087 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:11:59,087 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 14:11:59,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:11:59 BoogieIcfgContainer [2023-12-02 14:11:59,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:11:59,092 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:11:59,092 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:11:59,094 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:11:59,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:11:57" (1/3) ... [2023-12-02 14:11:59,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2675c824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:11:59, skipping insertion in model container [2023-12-02 14:11:59,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:57" (2/3) ... [2023-12-02 14:11:59,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2675c824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:11:59, skipping insertion in model container [2023-12-02 14:11:59,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:11:59" (3/3) ... [2023-12-02 14:11:59,097 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_s1269b_p2.c [2023-12-02 14:11:59,111 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:11:59,111 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 14:11:59,150 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:11:59,156 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;@2ee621bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:11:59,156 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 14:11:59,159 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 14:11:59,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 14:11:59,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:11:59,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 14:11:59,165 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:11:59,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:11:59,170 INFO L85 PathProgramCache]: Analyzing trace with hash 16092936, now seen corresponding path program 1 times [2023-12-02 14:11:59,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:11:59,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60295270] [2023-12-02 14:11:59,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:11:59,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:11:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:00,337 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 14:12:00,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:12:00,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60295270] [2023-12-02 14:12:00,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60295270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:12:00,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:12:00,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:12:00,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720169234] [2023-12-02 14:12:00,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:12:00,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:12:00,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:12:00,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:12:00,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:12:00,372 INFO L87 Difference]: Start difference. First 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) 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 14:12:00,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:12:00,852 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2023-12-02 14:12:00,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:12:00,854 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 14:12:00,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:12:00,860 INFO L225 Difference]: With dead ends: 15 [2023-12-02 14:12:00,860 INFO L226 Difference]: Without dead ends: 9 [2023-12-02 14:12:00,862 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 14:12:00,866 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 14:12:00,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 14:12:00,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-02 14:12:00,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-02 14:12:00,890 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 14:12:00,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-02 14:12:00,891 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-02 14:12:00,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:12:00,892 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-02 14:12:00,892 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 14:12:00,892 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-02 14:12:00,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 14:12:00,893 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:12:00,893 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-02 14:12:00,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:12:00,893 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:12:00,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:12:00,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1594604737, now seen corresponding path program 1 times [2023-12-02 14:12:00,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:12:00,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701383520] [2023-12-02 14:12:00,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:00,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:12:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:12:02,436 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 14:12:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:12:03,457 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 14:12:03,457 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 14:12:03,459 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 14:12:03,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:12:03,464 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-02 14:12:03,468 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:12:03,501 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-02 14:12:03,502 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-02 14:12:03,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:12:03 BoogieIcfgContainer [2023-12-02 14:12:03,519 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:12:03,520 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:12:03,520 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:12:03,520 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:12:03,520 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:11:59" (3/4) ... [2023-12-02 14:12:03,522 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 14:12:03,523 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:12:03,524 INFO L158 Benchmark]: Toolchain (without parser) took 6181.38ms. Allocated memory was 190.8MB in the beginning and 348.1MB in the end (delta: 157.3MB). Free memory was 148.8MB in the beginning and 185.2MB in the end (delta: -36.4MB). Peak memory consumption was 122.2MB. Max. memory is 16.1GB. [2023-12-02 14:12:03,525 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory is still 67.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:12:03,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.33ms. Allocated memory is still 190.8MB. Free memory was 148.8MB in the beginning and 133.3MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 14:12:03,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.44ms. Allocated memory is still 190.8MB. Free memory was 133.3MB in the beginning and 122.2MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 14:12:03,527 INFO L158 Benchmark]: Boogie Preprocessor took 74.21ms. Allocated memory is still 190.8MB. Free memory was 122.2MB in the beginning and 117.9MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 14:12:03,527 INFO L158 Benchmark]: RCFGBuilder took 1247.94ms. Allocated memory is still 190.8MB. Free memory was 117.9MB in the beginning and 80.8MB in the end (delta: 37.1MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2023-12-02 14:12:03,528 INFO L158 Benchmark]: TraceAbstraction took 4427.52ms. Allocated memory was 190.8MB in the beginning and 348.1MB in the end (delta: 157.3MB). Free memory was 80.8MB in the beginning and 185.2MB in the end (delta: -104.3MB). Peak memory consumption was 89.7MB. Max. memory is 16.1GB. [2023-12-02 14:12:03,528 INFO L158 Benchmark]: Witness Printer took 3.85ms. Allocated memory is still 348.1MB. Free memory is still 185.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:12:03,532 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory is still 67.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.33ms. Allocated memory is still 190.8MB. Free memory was 148.8MB in the beginning and 133.3MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.44ms. Allocated memory is still 190.8MB. Free memory was 133.3MB in the beginning and 122.2MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.21ms. Allocated memory is still 190.8MB. Free memory was 122.2MB in the beginning and 117.9MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1247.94ms. Allocated memory is still 190.8MB. Free memory was 117.9MB in the beginning and 80.8MB in the end (delta: 37.1MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4427.52ms. Allocated memory was 190.8MB in the beginning and 348.1MB in the end (delta: 157.3MB). Free memory was 80.8MB in the beginning and 185.2MB in the end (delta: -104.3MB). Peak memory consumption was 89.7MB. Max. memory is 16.1GB. * Witness Printer took 3.85ms. Allocated memory is still 348.1MB. Free memory is still 185.2MB. 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 98, overapproximation of bitwiseAnd at line 113. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 3); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (3 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L32] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 8); [L33] const SORT_12 msb_SORT_12 = (SORT_12)1 << (8 - 1); [L35] const SORT_3 var_14 = 0; [L36] const SORT_3 var_30 = 1; [L38] SORT_1 input_2; [L39] SORT_3 input_4; [L40] SORT_3 input_5; [L41] SORT_3 input_6; [L42] SORT_3 input_7; [L43] SORT_3 input_8; [L44] SORT_3 input_9; [L45] SORT_3 input_10; [L46] SORT_3 input_11; [L47] SORT_12 input_13; [L48] SORT_12 input_34; [L49] SORT_12 input_36; [L50] SORT_3 input_38; [L51] SORT_12 input_100; [L52] SORT_3 input_102; [L53] SORT_1 input_105; [L54] SORT_3 input_107; [L55] SORT_3 input_109; [L56] SORT_3 input_111; [L57] SORT_3 input_113; [L59] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L59] SORT_3 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L60] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L60] SORT_3 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L61] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L61] SORT_3 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L62] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L62] SORT_3 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L64] SORT_3 init_16_arg_1 = var_14; [L65] state_15 = init_16_arg_1 [L66] SORT_3 init_18_arg_1 = var_14; [L67] state_17 = init_18_arg_1 [L68] SORT_3 init_21_arg_1 = var_14; [L69] state_20 = init_21_arg_1 [L70] SORT_3 init_25_arg_1 = var_14; [L71] state_24 = init_25_arg_1 VAL [init_16_arg_1=0, init_18_arg_1=0, init_21_arg_1=0, init_25_arg_1=0, mask_SORT_12=255, mask_SORT_1=7, mask_SORT_3=1, msb_SORT_12=128, msb_SORT_1=4, msb_SORT_3=1, state_15=0, state_17=0, state_20=0, state_24=0, var_14=0, var_30=1] [L74] input_2 = __VERIFIER_nondet_uchar() [L75] input_4 = __VERIFIER_nondet_uchar() [L76] input_5 = __VERIFIER_nondet_uchar() [L77] input_6 = __VERIFIER_nondet_uchar() [L78] input_7 = __VERIFIER_nondet_uchar() [L79] input_8 = __VERIFIER_nondet_uchar() [L80] input_9 = __VERIFIER_nondet_uchar() [L81] input_10 = __VERIFIER_nondet_uchar() [L82] input_11 = __VERIFIER_nondet_uchar() [L83] input_13 = __VERIFIER_nondet_uchar() [L84] input_34 = __VERIFIER_nondet_uchar() [L85] input_36 = __VERIFIER_nondet_uchar() [L86] input_38 = __VERIFIER_nondet_uchar() [L87] input_100 = __VERIFIER_nondet_uchar() [L88] input_102 = __VERIFIER_nondet_uchar() [L89] input_105 = __VERIFIER_nondet_uchar() [L90] input_107 = __VERIFIER_nondet_uchar() [L91] input_109 = __VERIFIER_nondet_uchar() [L92] input_111 = __VERIFIER_nondet_uchar() [L93] input_113 = __VERIFIER_nondet_uchar() [L96] SORT_3 var_19_arg_0 = state_15; [L97] SORT_3 var_19_arg_1 = state_17; [L98] EXPR var_19_arg_0 | var_19_arg_1 [L98] SORT_3 var_19 = var_19_arg_0 | var_19_arg_1; [L99] SORT_3 var_22_arg_0 = var_19; [L100] SORT_3 var_22_arg_1 = state_20; [L101] EXPR var_22_arg_0 | var_22_arg_1 [L101] SORT_3 var_22 = var_22_arg_0 | var_22_arg_1; [L102] SORT_3 var_23_arg_0 = var_22; [L103] SORT_3 var_23 = ~var_23_arg_0; [L104] SORT_3 var_26_arg_0 = state_24; [L105] SORT_3 var_26 = ~var_26_arg_0; [L106] SORT_3 var_27_arg_0 = var_23; [L107] SORT_3 var_27_arg_1 = var_26; [L108] EXPR var_27_arg_0 | var_27_arg_1 [L108] SORT_3 var_27 = var_27_arg_0 | var_27_arg_1; [L109] SORT_3 var_31_arg_0 = var_27; [L110] SORT_3 var_31 = ~var_31_arg_0; [L111] SORT_3 var_32_arg_0 = var_30; [L112] SORT_3 var_32_arg_1 = var_31; [L113] EXPR var_32_arg_0 & var_32_arg_1 [L113] SORT_3 var_32 = var_32_arg_0 & var_32_arg_1; [L114] EXPR var_32 & mask_SORT_3 [L114] var_32 = var_32 & mask_SORT_3 [L115] SORT_3 bad_33_arg_0 = var_32; [L116] CALL __VERIFIER_assert(!(bad_33_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L116] RET __VERIFIER_assert(!(bad_33_arg_0)) [L118] SORT_3 var_40_arg_0 = state_17; [L119] SORT_3 var_40 = ~var_40_arg_0; [L120] SORT_3 var_41_arg_0 = state_15; [L121] SORT_3 var_41 = ~var_41_arg_0; [L122] SORT_3 var_42_arg_0 = var_41; [L123] SORT_3 var_42_arg_1 = state_20; [L124] EXPR var_42_arg_0 & var_42_arg_1 [L124] SORT_3 var_42 = var_42_arg_0 & var_42_arg_1; [L125] SORT_3 var_43_arg_0 = var_42; [L126] SORT_3 var_43 = ~var_43_arg_0; [L127] SORT_3 var_44_arg_0 = var_40; [L128] SORT_3 var_44_arg_1 = var_43; [L129] EXPR var_44_arg_0 | var_44_arg_1 [L129] SORT_3 var_44 = var_44_arg_0 | var_44_arg_1; [L130] SORT_3 var_45_arg_0 = var_44; [L131] SORT_3 var_45 = ~var_45_arg_0; [L132] SORT_3 var_46_arg_0 = state_17; [L133] SORT_3 var_46_arg_1 = state_20; [L134] EXPR var_46_arg_0 & var_46_arg_1 [L134] SORT_3 var_46 = var_46_arg_0 & var_46_arg_1; [L135] SORT_3 var_47_arg_0 = var_41; [L136] SORT_3 var_47_arg_1 = var_46; [L137] EXPR var_47_arg_0 | var_47_arg_1 [L137] SORT_3 var_47 = var_47_arg_0 | var_47_arg_1; [L138] SORT_3 var_48_arg_0 = var_47; [L139] SORT_3 var_48 = ~var_48_arg_0; [L140] SORT_3 var_49_arg_0 = var_45; [L141] SORT_3 var_49_arg_1 = var_48; [L142] EXPR var_49_arg_0 | var_49_arg_1 [L142] SORT_3 var_49 = var_49_arg_0 | var_49_arg_1; [L143] SORT_3 next_115_arg_1 = var_49; [L144] SORT_3 var_51_arg_0 = state_20; [L145] SORT_3 var_51 = ~var_51_arg_0; [L146] SORT_3 var_52_arg_0 = state_17; [L147] SORT_3 var_52_arg_1 = var_51; [L148] EXPR var_52_arg_0 | var_52_arg_1 [L148] SORT_3 var_52 = var_52_arg_0 | var_52_arg_1; [L149] SORT_3 var_53_arg_0 = state_17; [L150] SORT_3 var_53_arg_1 = var_51; [L151] EXPR var_53_arg_0 & var_53_arg_1 [L151] SORT_3 var_53 = var_53_arg_0 & var_53_arg_1; [L152] SORT_3 var_54_arg_0 = var_53; [L153] SORT_3 var_54 = ~var_54_arg_0; [L154] SORT_3 var_55_arg_0 = var_52; [L155] SORT_3 var_55_arg_1 = var_54; [L156] EXPR var_55_arg_0 & var_55_arg_1 [L156] SORT_3 var_55 = var_55_arg_0 & var_55_arg_1; [L157] SORT_3 var_56_arg_0 = var_55; [L158] SORT_3 var_56 = ~var_56_arg_0; [L159] SORT_3 next_116_arg_1 = var_56; [L160] SORT_1 var_58_arg_0 = input_2; [L161] SORT_3 var_58 = var_58_arg_0 >> 0; [L162] SORT_1 var_59_arg_0 = input_2; [L163] SORT_3 var_59 = var_59_arg_0 >> 2; [L164] SORT_3 var_60_arg_0 = var_59; [L165] SORT_3 var_60 = ~var_60_arg_0; [L166] SORT_1 var_61_arg_0 = input_2; [L167] SORT_3 var_61 = var_61_arg_0 >> 1; [L168] SORT_3 var_62_arg_0 = var_60; [L169] SORT_3 var_62_arg_1 = var_61; [L170] EXPR var_62_arg_0 | var_62_arg_1 [L170] SORT_3 var_62 = var_62_arg_0 | var_62_arg_1; [L171] SORT_3 var_63_arg_0 = var_58; [L172] SORT_3 var_63_arg_1 = var_62; [L173] EXPR var_63_arg_0 | var_63_arg_1 [L173] SORT_3 var_63 = var_63_arg_0 | var_63_arg_1; [L174] SORT_3 var_64_arg_0 = var_63; [L175] SORT_3 var_64 = ~var_64_arg_0; [L176] SORT_3 var_65_arg_0 = state_15; [L177] SORT_3 var_65_arg_1 = state_17; [L178] EXPR var_65_arg_0 | var_65_arg_1 [L178] SORT_3 var_65 = var_65_arg_0 | var_65_arg_1; [L179] SORT_3 var_66_arg_0 = var_64; [L180] SORT_3 var_66_arg_1 = var_65; [L181] EXPR var_66_arg_0 | var_66_arg_1 [L181] SORT_3 var_66 = var_66_arg_0 | var_66_arg_1; [L182] SORT_3 var_67_arg_0 = var_66; [L183] SORT_3 var_67_arg_1 = var_51; [L184] EXPR var_67_arg_0 & var_67_arg_1 [L184] SORT_3 var_67 = var_67_arg_0 & var_67_arg_1; [L185] SORT_3 next_117_arg_1 = var_67; [L186] SORT_3 var_69_arg_0 = state_15; [L187] SORT_3 var_69_arg_1 = state_20; [L188] EXPR var_69_arg_0 & var_69_arg_1 [L188] SORT_3 var_69 = var_69_arg_0 & var_69_arg_1; [L189] SORT_3 var_70_arg_0 = var_69; [L190] SORT_3 var_70 = ~var_70_arg_0; [L191] SORT_3 var_71_arg_0 = var_40; [L192] SORT_3 var_71_arg_1 = var_70; [L193] EXPR var_71_arg_0 | var_71_arg_1 [L193] SORT_3 var_71 = var_71_arg_0 | var_71_arg_1; [L194] SORT_3 var_72_arg_0 = var_71; [L195] SORT_3 var_72 = ~var_72_arg_0; [L196] SORT_3 var_73_arg_0 = state_20; [L197] SORT_3 var_73_arg_1 = var_65; [L198] EXPR var_73_arg_0 | var_73_arg_1 [L198] SORT_3 var_73 = var_73_arg_0 | var_73_arg_1; [L199] SORT_3 var_74_arg_0 = var_73; [L200] SORT_3 var_74 = ~var_74_arg_0; [L201] SORT_3 var_75_arg_0 = var_58; [L202] SORT_3 var_75_arg_1 = var_74; [L203] EXPR var_75_arg_0 & var_75_arg_1 [L203] SORT_3 var_75 = var_75_arg_0 & var_75_arg_1; [L204] SORT_3 var_76_arg_0 = var_75; [L205] SORT_3 var_76 = ~var_76_arg_0; [L206] SORT_3 var_77_arg_0 = var_76; [L207] SORT_3 var_77 = ~var_77_arg_0; [L208] SORT_3 var_78_arg_0 = var_72; [L209] SORT_3 var_78_arg_1 = var_77; [L210] EXPR var_78_arg_0 | var_78_arg_1 [L210] SORT_3 var_78 = var_78_arg_0 | var_78_arg_1; [L211] SORT_3 var_79_arg_0 = var_62; [L212] SORT_3 var_79_arg_1 = var_74; [L213] EXPR var_79_arg_0 & var_79_arg_1 [L213] SORT_3 var_79 = var_79_arg_0 & var_79_arg_1; [L214] SORT_3 var_80_arg_0 = var_78; [L215] SORT_3 var_80_arg_1 = var_79; [L216] EXPR var_80_arg_0 | var_80_arg_1 [L216] SORT_3 var_80 = var_80_arg_0 | var_80_arg_1; [L217] SORT_3 next_118_arg_1 = var_80; [L219] state_15 = next_115_arg_1 [L220] state_17 = next_116_arg_1 [L221] state_20 = next_117_arg_1 [L222] state_24 = next_118_arg_1 VAL [bad_33_arg_0=0, init_16_arg_1=0, init_18_arg_1=0, init_21_arg_1=0, init_25_arg_1=0, input_2=254, mask_SORT_12=255, mask_SORT_1=7, mask_SORT_3=1, msb_SORT_12=128, msb_SORT_1=4, msb_SORT_3=1, next_115_arg_1=0, next_116_arg_1=0, next_117_arg_1=0, next_118_arg_1=1, state_15=0, state_17=0, state_20=0, state_24=1, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_22=0, var_22_arg_0=0, var_22_arg_1=0, var_23=255, var_23_arg_0=0, var_26=255, var_26_arg_0=0, var_27=255, var_27_arg_0=255, var_27_arg_1=255, var_30=1, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=1, var_32_arg_1=0, var_40=255, var_40_arg_0=0, var_41=255, var_41_arg_0=0, var_42=0, var_42_arg_0=255, var_42_arg_1=0, var_43=255, var_43_arg_0=0, var_44=255, var_44_arg_0=255, var_44_arg_1=255, var_45=0, var_45_arg_0=255, var_46=0, var_46_arg_0=0, var_46_arg_1=0, var_47=255, var_47_arg_0=255, var_47_arg_1=0, var_48=0, var_48_arg_0=255, var_49=0, var_49_arg_0=0, var_49_arg_1=0, var_51=255, var_51_arg_0=0, var_52=255, var_52_arg_0=0, var_52_arg_1=255, var_53=0, var_53_arg_0=0, var_53_arg_1=255, var_54=255, var_54_arg_0=0, var_55=255, var_55_arg_0=255, var_55_arg_1=255, var_56=0, var_56_arg_0=255, var_58=254, var_58_arg_0=254, var_59=63, var_59_arg_0=254, var_60=192, var_60_arg_0=63, var_61=127, var_61_arg_0=254, var_62=255, var_62_arg_0=192, var_62_arg_1=127, var_63=255, var_63_arg_0=254, var_63_arg_1=255, var_64=0, var_64_arg_0=255, var_65=0, var_65_arg_0=0, var_65_arg_1=0, var_66=0, var_66_arg_0=0, var_66_arg_1=0, var_67=0, var_67_arg_0=0, var_67_arg_1=255, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_70=255, var_70_arg_0=0, var_71=255, var_71_arg_0=255, var_71_arg_1=255, var_72=0, var_72_arg_0=255, var_73=0, var_73_arg_0=0, var_73_arg_1=0, var_74=255, var_74_arg_0=0, var_75=254, var_75_arg_0=254, var_75_arg_1=255, var_76=1, var_76_arg_0=254, var_77=254, var_77_arg_0=1, var_78=254, var_78_arg_0=0, var_78_arg_1=254, var_79=255, var_79_arg_0=255, var_79_arg_1=255, var_80=1, var_80_arg_0=254, var_80_arg_1=255] [L74] input_2 = __VERIFIER_nondet_uchar() [L75] input_4 = __VERIFIER_nondet_uchar() [L76] input_5 = __VERIFIER_nondet_uchar() [L77] input_6 = __VERIFIER_nondet_uchar() [L78] input_7 = __VERIFIER_nondet_uchar() [L79] input_8 = __VERIFIER_nondet_uchar() [L80] input_9 = __VERIFIER_nondet_uchar() [L81] input_10 = __VERIFIER_nondet_uchar() [L82] input_11 = __VERIFIER_nondet_uchar() [L83] input_13 = __VERIFIER_nondet_uchar() [L84] input_34 = __VERIFIER_nondet_uchar() [L85] input_36 = __VERIFIER_nondet_uchar() [L86] input_38 = __VERIFIER_nondet_uchar() [L87] input_100 = __VERIFIER_nondet_uchar() [L88] input_102 = __VERIFIER_nondet_uchar() [L89] input_105 = __VERIFIER_nondet_uchar() [L90] input_107 = __VERIFIER_nondet_uchar() [L91] input_109 = __VERIFIER_nondet_uchar() [L92] input_111 = __VERIFIER_nondet_uchar() [L93] input_113 = __VERIFIER_nondet_uchar() [L96] SORT_3 var_19_arg_0 = state_15; [L97] SORT_3 var_19_arg_1 = state_17; [L98] EXPR var_19_arg_0 | var_19_arg_1 [L98] SORT_3 var_19 = var_19_arg_0 | var_19_arg_1; [L99] SORT_3 var_22_arg_0 = var_19; [L100] SORT_3 var_22_arg_1 = state_20; [L101] EXPR var_22_arg_0 | var_22_arg_1 [L101] SORT_3 var_22 = var_22_arg_0 | var_22_arg_1; [L102] SORT_3 var_23_arg_0 = var_22; [L103] SORT_3 var_23 = ~var_23_arg_0; [L104] SORT_3 var_26_arg_0 = state_24; [L105] SORT_3 var_26 = ~var_26_arg_0; [L106] SORT_3 var_27_arg_0 = var_23; [L107] SORT_3 var_27_arg_1 = var_26; [L108] EXPR var_27_arg_0 | var_27_arg_1 [L108] SORT_3 var_27 = var_27_arg_0 | var_27_arg_1; [L109] SORT_3 var_31_arg_0 = var_27; [L110] SORT_3 var_31 = ~var_31_arg_0; [L111] SORT_3 var_32_arg_0 = var_30; [L112] SORT_3 var_32_arg_1 = var_31; [L113] EXPR var_32_arg_0 & var_32_arg_1 [L113] SORT_3 var_32 = var_32_arg_0 & var_32_arg_1; [L114] EXPR var_32 & mask_SORT_3 [L114] var_32 = var_32 & mask_SORT_3 [L115] SORT_3 bad_33_arg_0 = var_32; [L116] CALL __VERIFIER_assert(!(bad_33_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: 4.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=1, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 14:12:03,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/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_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/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_2c7c7230-a931-41be-a1e7-5c0b67506829/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 895ff1e019ffafaf8b2f8e3efbd16ea4845b2e4eac0a4db8b4c86c462883ae8c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:12:05,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:12:05,527 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-12-02 14:12:05,531 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:12:05,532 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:12:05,557 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:12:05,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:12:05,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:12:05,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:12:05,559 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:12:05,559 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:12:05,560 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:12:05,560 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:12:05,561 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:12:05,561 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:12:05,562 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:12:05,563 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:12:05,563 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:12:05,564 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:12:05,564 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:12:05,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:12:05,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:12:05,566 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 14:12:05,566 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 14:12:05,567 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 14:12:05,567 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:12:05,568 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:12:05,568 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:12:05,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 14:12:05,569 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:12:05,569 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:12:05,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:12:05,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:12:05,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:12:05,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:12:05,571 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 14:12:05,571 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 14:12:05,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:12:05,571 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:12:05,571 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:12:05,572 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:12:05,572 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_2c7c7230-a931-41be-a1e7-5c0b67506829/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 895ff1e019ffafaf8b2f8e3efbd16ea4845b2e4eac0a4db8b4c86c462883ae8c [2023-12-02 14:12:05,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:12:05,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:12:05,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:12:05,870 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:12:05,871 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:12:05,872 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c [2023-12-02 14:12:08,721 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:12:08,939 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:12:08,939 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c [2023-12-02 14:12:08,948 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/data/98b73a501/bb736566cda24053bfa241e9c5ee5349/FLAGeae64ae14 [2023-12-02 14:12:08,961 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/data/98b73a501/bb736566cda24053bfa241e9c5ee5349 [2023-12-02 14:12:08,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:12:08,965 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:12:08,966 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:12:08,966 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:12:08,971 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:12:08,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:12:08" (1/1) ... [2023-12-02 14:12:08,973 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12698602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:08, skipping insertion in model container [2023-12-02 14:12:08,973 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:12:08" (1/1) ... [2023-12-02 14:12:09,005 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:12:09,162 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_2c7c7230-a931-41be-a1e7-5c0b67506829/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c[1259,1272] [2023-12-02 14:12:09,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:12:09,239 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:12:09,252 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_2c7c7230-a931-41be-a1e7-5c0b67506829/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c[1259,1272] [2023-12-02 14:12:09,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:12:09,305 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:12:09,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:09 WrapperNode [2023-12-02 14:12:09,306 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:12:09,307 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:12:09,307 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:12:09,307 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:12:09,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:09" (1/1) ... [2023-12-02 14:12:09,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:09" (1/1) ... [2023-12-02 14:12:09,359 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 254 [2023-12-02 14:12:09,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:12:09,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:12:09,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:12:09,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:12:09,370 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:09" (1/1) ... [2023-12-02 14:12:09,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:09" (1/1) ... [2023-12-02 14:12:09,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:09" (1/1) ... [2023-12-02 14:12:09,377 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:09" (1/1) ... [2023-12-02 14:12:09,387 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:09" (1/1) ... [2023-12-02 14:12:09,390 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:09" (1/1) ... [2023-12-02 14:12:09,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:09" (1/1) ... [2023-12-02 14:12:09,395 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:09" (1/1) ... [2023-12-02 14:12:09,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:12:09,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:12:09,401 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:12:09,401 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:12:09,402 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:09" (1/1) ... [2023-12-02 14:12:09,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:12:09,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:12:09,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:12:09,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:12:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:12:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 14:12:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:12:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:12:09,598 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:12:09,600 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:12:09,811 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:12:09,843 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:12:09,843 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 14:12:09,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:12:09 BoogieIcfgContainer [2023-12-02 14:12:09,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:12:09,846 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:12:09,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:12:09,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:12:09,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:12:08" (1/3) ... [2023-12-02 14:12:09,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f8f2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:12:09, skipping insertion in model container [2023-12-02 14:12:09,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:09" (2/3) ... [2023-12-02 14:12:09,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f8f2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:12:09, skipping insertion in model container [2023-12-02 14:12:09,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:12:09" (3/3) ... [2023-12-02 14:12:09,853 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_s1269b_p2.c [2023-12-02 14:12:09,871 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:12:09,871 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 14:12:09,919 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:12:09,926 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;@5c72ed67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:12:09,926 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 14:12:09,931 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 14:12:09,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 14:12:09,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:12:09,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 14:12:09,938 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:12:09,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:12:09,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-02 14:12:09,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:12:09,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994379832] [2023-12-02 14:12:09,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:09,957 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 14:12:09,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:12:09,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/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 14:12:09,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/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 14:12:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:10,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 14:12:10,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:12:10,275 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 14:12:10,275 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:12:10,276 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:12:10,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994379832] [2023-12-02 14:12:10,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994379832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:12:10,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:12:10,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:12:10,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412989973] [2023-12-02 14:12:10,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:12:10,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:12:10,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:12:10,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:12:10,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:12:10,312 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 14:12:10,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:12:10,368 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-02 14:12:10,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:12:10,370 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 14:12:10,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:12:10,378 INFO L225 Difference]: With dead ends: 16 [2023-12-02 14:12:10,378 INFO L226 Difference]: Without dead ends: 9 [2023-12-02 14:12:10,380 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 14:12:10,384 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:12:10,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:12:10,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-02 14:12:10,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-02 14:12:10,414 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 14:12:10,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-02 14:12:10,416 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-02 14:12:10,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:12:10,416 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-02 14:12:10,416 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 14:12:10,416 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-02 14:12:10,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 14:12:10,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:12:10,417 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-02 14:12:10,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/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 14:12:10,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/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 14:12:10,619 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:12:10,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:12:10,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-12-02 14:12:10,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:12:10,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023691430] [2023-12-02 14:12:10,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:10,622 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 14:12:10,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:12:10,623 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/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 14:12:10,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/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 14:12:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:10,778 WARN L260 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 96 conjunts are in the unsatisfiable core [2023-12-02 14:12:10,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:12:11,627 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 14:12:11,627 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:12:11,956 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 14:12:11,956 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:12:11,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023691430] [2023-12-02 14:12:11,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023691430] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:12:11,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1212611003] [2023-12-02 14:12:11,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:11,957 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 14:12:11,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 14:12:11,960 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 14:12:11,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 14:12:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:12,181 WARN L260 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 96 conjunts are in the unsatisfiable core [2023-12-02 14:12:12,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:12:12,779 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 14:12:12,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:12:17,051 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 14:12:17,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1212611003] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:12:17,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940128970] [2023-12-02 14:12:17,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:12:17,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:12:17,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:12:17,058 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:12:17,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 14:12:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:12:17,187 WARN L260 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 99 conjunts are in the unsatisfiable core [2023-12-02 14:12:17,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:12:17,696 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 14:12:17,696 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:12:30,059 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 14:12:30,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940128970] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:12:30,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 14:12:30,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 5, 5] total 11 [2023-12-02 14:12:30,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940197119] [2023-12-02 14:12:30,061 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 14:12:30,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 14:12:30,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:12:30,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 14:12:30,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=84, Unknown=8, NotChecked=0, Total=132 [2023-12-02 14:12:30,063 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 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 14:12:30,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:12:30,293 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2023-12-02 14:12:30,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 14:12:30,294 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 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 14:12:30,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:12:30,295 INFO L225 Difference]: With dead ends: 12 [2023-12-02 14:12:30,295 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 14:12:30,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=66, Invalid=136, Unknown=8, NotChecked=0, Total=210 [2023-12-02 14:12:30,297 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:12:30,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:12:30,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 14:12:30,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 14:12:30,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:12:30,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 14:12:30,299 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2023-12-02 14:12:30,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:12:30,300 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 14:12:30,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 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 14:12:30,300 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 14:12:30,300 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 14:12:30,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 14:12:30,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/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)] Forceful destruction successful, exit code 0 [2023-12-02 14:12:30,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 14:12:30,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 14:12:30,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/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_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:12:30,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 14:12:30,944 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 14:12:30,944 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-12-02 14:12:30,944 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-12-02 14:12:30,944 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-12-02 14:12:30,945 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 14:12:30,945 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-12-02 14:12:30,946 INFO L895 garLoopResultBuilder]: At program point L72-2(lines 72 223) the Hoare annotation is: (forall ((|v_ULTIMATE.start_main_~var_32_arg_0~0#1_13| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_0~0#1_13|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~state_24~0#1|)))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |ULTIMATE.start_main_~state_20~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |ULTIMATE.start_main_~state_17~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~state_15~0#1|))))))))))))))))))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_3~0#1|))))) [2023-12-02 14:12:30,946 INFO L899 garLoopResultBuilder]: For program point L72-3(lines 72 223) no Hoare annotation was computed. [2023-12-02 14:12:30,950 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-02 14:12:30,952 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:12:30,962 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (forall v_ULTIMATE.start_main_~var_32_arg_0~0#1_13 : bv8 :: 0bv8 == ~bvand~32(~zero_extend~32~8(~bvand~32(~zero_extend~32~8(v_ULTIMATE.start_main_~var_32_arg_0~0#1_13), ~zero_extend~32~8(~bvnot~32(~zero_extend~32~8(~bvor~32(~zero_extend~32~8(~bvnot~32(~zero_extend~32~8(~state_24~0))[7:0]), ~zero_extend~32~8(~bvnot~32(~zero_extend~32~8(~bvor~32(~zero_extend~32~8(~state_20~0), ~zero_extend~32~8(~bvor~32(~zero_extend~32~8(~state_17~0), ~zero_extend~32~8(~state_15~0))[7:0]))[7:0]))[7:0]))[7:0]))[7:0]))[7:0]), ~zero_extend~32~8(~mask_SORT_3~0))[7:0]) could not be translated [2023-12-02 14:12:30,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:12:30 BoogieIcfgContainer [2023-12-02 14:12:30,963 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:12:30,964 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:12:30,964 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:12:30,964 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:12:30,965 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:12:09" (3/4) ... [2023-12-02 14:12:30,967 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 14:12:30,981 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-12-02 14:12:30,982 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 14:12:30,983 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 14:12:30,984 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 14:12:31,100 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 14:12:31,101 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 14:12:31,101 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:12:31,101 INFO L158 Benchmark]: Toolchain (without parser) took 22137.05ms. Allocated memory was 107.0MB in the beginning and 195.0MB in the end (delta: 88.1MB). Free memory was 82.6MB in the beginning and 131.2MB in the end (delta: -48.6MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2023-12-02 14:12:31,102 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 73.4MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:12:31,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.13ms. Allocated memory is still 107.0MB. Free memory was 82.6MB in the beginning and 67.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 14:12:31,102 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.09ms. Allocated memory is still 107.0MB. Free memory was 67.4MB in the beginning and 64.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 14:12:31,103 INFO L158 Benchmark]: Boogie Preprocessor took 39.09ms. Allocated memory is still 107.0MB. Free memory was 64.7MB in the beginning and 62.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:12:31,103 INFO L158 Benchmark]: RCFGBuilder took 443.60ms. Allocated memory is still 107.0MB. Free memory was 62.6MB in the beginning and 69.2MB in the end (delta: -6.6MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2023-12-02 14:12:31,103 INFO L158 Benchmark]: TraceAbstraction took 21116.79ms. Allocated memory was 107.0MB in the beginning and 195.0MB in the end (delta: 88.1MB). Free memory was 68.8MB in the beginning and 138.6MB in the end (delta: -69.8MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2023-12-02 14:12:31,104 INFO L158 Benchmark]: Witness Printer took 137.13ms. Allocated memory is still 195.0MB. Free memory was 138.6MB in the beginning and 131.2MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 14:12:31,106 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 73.4MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.13ms. Allocated memory is still 107.0MB. Free memory was 82.6MB in the beginning and 67.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.09ms. Allocated memory is still 107.0MB. Free memory was 67.4MB in the beginning and 64.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.09ms. Allocated memory is still 107.0MB. Free memory was 64.7MB in the beginning and 62.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 443.60ms. Allocated memory is still 107.0MB. Free memory was 62.6MB in the beginning and 69.2MB in the end (delta: -6.6MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * TraceAbstraction took 21116.79ms. Allocated memory was 107.0MB in the beginning and 195.0MB in the end (delta: 88.1MB). Free memory was 68.8MB in the beginning and 138.6MB in the end (delta: -69.8MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Witness Printer took 137.13ms. Allocated memory is still 195.0MB. Free memory was 138.6MB in the beginning and 131.2MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (forall v_ULTIMATE.start_main_~var_32_arg_0~0#1_13 : bv8 :: 0bv8 == ~bvand~32(~zero_extend~32~8(~bvand~32(~zero_extend~32~8(v_ULTIMATE.start_main_~var_32_arg_0~0#1_13), ~zero_extend~32~8(~bvnot~32(~zero_extend~32~8(~bvor~32(~zero_extend~32~8(~bvnot~32(~zero_extend~32~8(~state_24~0))[7:0]), ~zero_extend~32~8(~bvnot~32(~zero_extend~32~8(~bvor~32(~zero_extend~32~8(~state_20~0), ~zero_extend~32~8(~bvor~32(~zero_extend~32~8(~state_17~0), ~zero_extend~32~8(~state_15~0))[7:0]))[7:0]))[7:0]))[7:0]))[7:0]))[7:0]), ~zero_extend~32~8(~mask_SORT_3~0))[7:0]) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.0s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 3 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 16.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 38 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 117 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 19.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 15 QuantifiedInterpolants, 1921 SizeOfPredicates, 322 NumberOfNonLiveVariables, 582 ConjunctsInSsa, 307 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-12-02 14:12:31,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c7230-a931-41be-a1e7-5c0b67506829/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE