./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ --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 32bit --witnessprinter.graph.data.programhash dffb49b583bf1b2953c0c17a06d6fc63bf48c484ad06befbc2660a12f206f89f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:57:09,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:57:09,612 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:57:09,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:57:09,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:57:09,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:57:09,653 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:57:09,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:57:09,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:57:09,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:57:09,657 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:57:09,657 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:57:09,658 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:57:09,659 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:57:09,660 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:57:09,660 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:57:09,661 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:57:09,662 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:57:09,662 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:57:09,663 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:57:09,664 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:57:09,664 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:57:09,665 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:57:09,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:57:09,666 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:57:09,667 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:57:09,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:57:09,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:57:09,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:57:09,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:57:09,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:57:09,670 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:57:09,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:57:09,671 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:57:09,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:57:09,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:57:09,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:09,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:57:09,674 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:57:09,674 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:57:09,674 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:57:09,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:57:09,675 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:57:09,675 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:57:09,676 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:57:09,676 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_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dffb49b583bf1b2953c0c17a06d6fc63bf48c484ad06befbc2660a12f206f89f [2023-11-19 04:57:09,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:57:10,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:57:10,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:57:10,032 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:57:10,032 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:57:10,035 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-10.i [2023-11-19 04:57:13,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:57:14,200 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:57:14,201 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-10.i [2023-11-19 04:57:14,213 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/data/20c1083de/867a72ddd36b4db398e70b36838e8bfa/FLAG85ea90f0a [2023-11-19 04:57:14,232 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/data/20c1083de/867a72ddd36b4db398e70b36838e8bfa [2023-11-19 04:57:14,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:57:14,238 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:57:14,240 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:14,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:57:14,247 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:57:14,248 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:14" (1/1) ... [2023-11-19 04:57:14,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@598452a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:14, skipping insertion in model container [2023-11-19 04:57:14,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:14" (1/1) ... [2023-11-19 04:57:14,289 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:57:14,507 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_280db816-4ee4-4f7b-961c-20305b8e0d2e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-10.i[915,928] [2023-11-19 04:57:14,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:14,601 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:57:14,613 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_280db816-4ee4-4f7b-961c-20305b8e0d2e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-10.i[915,928] [2023-11-19 04:57:14,659 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:14,687 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:57:14,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:14 WrapperNode [2023-11-19 04:57:14,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:14,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:14,690 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:57:14,690 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:57:14,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:14" (1/1) ... [2023-11-19 04:57:14,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:14" (1/1) ... [2023-11-19 04:57:14,787 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 154 [2023-11-19 04:57:14,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:14,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:57:14,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:57:14,789 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:57:14,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:14" (1/1) ... [2023-11-19 04:57:14,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:14" (1/1) ... [2023-11-19 04:57:14,818 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:14" (1/1) ... [2023-11-19 04:57:14,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:14" (1/1) ... [2023-11-19 04:57:14,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:14" (1/1) ... [2023-11-19 04:57:14,838 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:14" (1/1) ... [2023-11-19 04:57:14,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:14" (1/1) ... [2023-11-19 04:57:14,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:14" (1/1) ... [2023-11-19 04:57:14,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:57:14,858 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:57:14,858 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:57:14,858 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:57:14,860 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:14" (1/1) ... [2023-11-19 04:57:14,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:14,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:57:14,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:57:14,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:57:14,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:57:14,991 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:57:14,992 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:57:14,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:57:14,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:57:14,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:57:15,163 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:57:15,167 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:57:15,674 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:57:16,155 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:57:16,156 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:57:16,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:16 BoogieIcfgContainer [2023-11-19 04:57:16,175 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:57:16,180 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:57:16,180 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:57:16,185 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:57:16,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:57:14" (1/3) ... [2023-11-19 04:57:16,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc59319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:16, skipping insertion in model container [2023-11-19 04:57:16,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:14" (2/3) ... [2023-11-19 04:57:16,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc59319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:16, skipping insertion in model container [2023-11-19 04:57:16,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:16" (3/3) ... [2023-11-19 04:57:16,195 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-10.i [2023-11-19 04:57:16,220 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:57:16,220 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:57:16,303 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:57:16,314 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;@4fb380e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:57:16,315 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:57:16,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 04:57:16,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 04:57:16,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:16,335 INFO L195 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:16,335 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:57:16,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:16,342 INFO L85 PathProgramCache]: Analyzing trace with hash 124084634, now seen corresponding path program 1 times [2023-11-19 04:57:16,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:16,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927048634] [2023-11-19 04:57:16,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:16,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:57:17,706 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:57:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:57:18,233 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:57:18,235 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:57:18,237 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:57:18,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:57:18,245 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:57:18,260 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:57:18,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:57:18 BoogieIcfgContainer [2023-11-19 04:57:18,394 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:57:18,397 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:57:18,397 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:57:18,397 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:57:18,398 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:16" (3/4) ... [2023-11-19 04:57:18,401 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:57:18,402 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:57:18,404 INFO L158 Benchmark]: Toolchain (without parser) took 4165.74ms. Allocated memory is still 234.9MB. Free memory was 185.7MB in the beginning and 126.0MB in the end (delta: 59.7MB). Peak memory consumption was 62.4MB. Max. memory is 16.1GB. [2023-11-19 04:57:18,404 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 87.2MB in the end (delta: 134.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:57:18,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.99ms. Allocated memory is still 234.9MB. Free memory was 185.7MB in the beginning and 171.6MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:57:18,407 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.67ms. Allocated memory is still 234.9MB. Free memory was 171.6MB in the beginning and 167.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:57:18,409 INFO L158 Benchmark]: Boogie Preprocessor took 68.19ms. Allocated memory is still 234.9MB. Free memory was 167.4MB in the beginning and 165.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:57:18,414 INFO L158 Benchmark]: RCFGBuilder took 1316.87ms. Allocated memory is still 234.9MB. Free memory was 164.7MB in the beginning and 195.1MB in the end (delta: -30.3MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-19 04:57:18,416 INFO L158 Benchmark]: TraceAbstraction took 2214.60ms. Allocated memory is still 234.9MB. Free memory was 194.0MB in the beginning and 126.0MB in the end (delta: 68.0MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2023-11-19 04:57:18,418 INFO L158 Benchmark]: Witness Printer took 5.63ms. Allocated memory is still 234.9MB. Free memory was 126.0MB in the beginning and 126.0MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:57:18,429 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 87.2MB in the end (delta: 134.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 448.99ms. Allocated memory is still 234.9MB. Free memory was 185.7MB in the beginning and 171.6MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.67ms. Allocated memory is still 234.9MB. Free memory was 171.6MB in the beginning and 167.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.19ms. Allocated memory is still 234.9MB. Free memory was 167.4MB in the beginning and 165.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1316.87ms. Allocated memory is still 234.9MB. Free memory was 164.7MB in the beginning and 195.1MB in the end (delta: -30.3MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2214.60ms. Allocated memory is still 234.9MB. Free memory was 194.0MB in the beginning and 126.0MB in the end (delta: 68.0MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. * Witness Printer took 5.63ms. Allocated memory is still 234.9MB. Free memory was 126.0MB in the beginning and 126.0MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: 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 shiftLeft at line 54. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 4; [L23] unsigned short int var_1_4 = 58792; [L24] unsigned short int var_1_5 = 8; [L25] unsigned short int var_1_6 = 64; [L26] unsigned short int var_1_7 = 16; [L27] unsigned char var_1_8 = 0; [L28] unsigned char var_1_9 = 1; [L29] signed short int var_1_10 = 1000; [L30] signed short int var_1_11 = 1; [L31] signed short int var_1_12 = -25; [L32] signed short int var_1_13 = 25; [L33] unsigned short int var_1_14 = 5; [L34] unsigned short int var_1_16 = 20511; [L35] unsigned long int var_1_17 = 50; [L36] unsigned short int var_1_18 = 10; [L37] unsigned char last_1_var_1_8 = 0; [L121] isInitial = 1 [L122] FCALL initially() [L123] COND TRUE 1 [L124] CALL updateLastVariables() [L114] last_1_var_1_8 = var_1_8 [L124] RET updateLastVariables() [L125] CALL updateVariables() [L85] var_1_4 = __VERIFIER_nondet_ushort() [L86] CALL assume_abort_if_not(var_1_4 >= 49150) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=8, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_4 >= 49150) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=8, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L87] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=8, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=8, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L88] var_1_5 = __VERIFIER_nondet_ushort() [L89] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L90] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L91] var_1_6 = __VERIFIER_nondet_ushort() [L92] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=16, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=16, var_1_8=0, var_1_9=1] [L93] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=16, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=16, var_1_8=0, var_1_9=1] [L94] var_1_7 = __VERIFIER_nondet_ushort() [L95] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L96] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L97] var_1_9 = __VERIFIER_nondet_uchar() [L98] CALL assume_abort_if_not(var_1_9 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_9 >= 1) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L99] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L100] var_1_11 = __VERIFIER_nondet_short() [L101] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L102] CALL assume_abort_if_not(var_1_11 <= 8191) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_11 <= 8191) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L103] var_1_12 = __VERIFIER_nondet_short() [L104] CALL assume_abort_if_not(var_1_12 >= -16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-16383, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_12 >= -16383) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-16383, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L105] CALL assume_abort_if_not(var_1_12 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-16383, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_12 <= 16383) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-16383, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L106] var_1_13 = __VERIFIER_nondet_short() [L107] CALL assume_abort_if_not(var_1_13 >= -32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_13 >= -32767) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L108] CALL assume_abort_if_not(var_1_13 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_13 <= 32766) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L109] var_1_16 = __VERIFIER_nondet_ushort() [L110] CALL assume_abort_if_not(var_1_16 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=26378, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_16 >= 16383) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=26378, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L111] CALL assume_abort_if_not(var_1_16 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=26378, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_16 <= 32767) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=0, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=26378, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=0, var_1_9=1] [L125] RET updateVariables() [L126] CALL step() [L41] unsigned short int stepLocal_1 = var_1_6; [L42] unsigned char stepLocal_0 = last_1_var_1_8; [L43] COND FALSE !(last_1_var_1_8 && stepLocal_0) [L46] COND FALSE !(((((var_1_7) > (var_1_5)) ? (var_1_7) : (var_1_5))) < stepLocal_1) [L50] var_1_8 = (((var_1_7 >= var_1_5) && (var_1_4 >= var_1_1)) || var_1_9) [L51] COND TRUE \read(var_1_8) [L52] var_1_14 = (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) - ((((var_1_5) > ((var_1_16 - var_1_11))) ? (var_1_5) : ((var_1_16 - var_1_11))))) [L54] EXPR var_1_16 << var_1_7 [L54] EXPR ((var_1_13) > ((var_1_16 << var_1_7))) ? (var_1_13) : ((var_1_16 << var_1_7)) [L54] EXPR var_1_16 << var_1_7 [L54] EXPR ((var_1_13) > ((var_1_16 << var_1_7))) ? (var_1_13) : ((var_1_16 << var_1_7)) [L54] signed long int stepLocal_4 = (((var_1_13) > ((var_1_16 << var_1_7))) ? (var_1_13) : ((var_1_16 << var_1_7))); [L55] COND TRUE stepLocal_4 >= var_1_14 [L56] var_1_17 = var_1_11 [L60] unsigned short int stepLocal_5 = var_1_5; [L61] COND FALSE !(stepLocal_5 == var_1_16) [L68] COND TRUE \read(var_1_9) [L69] var_1_18 = 200 [L72] unsigned char stepLocal_3 = var_1_9; [L73] unsigned long int stepLocal_2 = var_1_17; [L74] COND TRUE stepLocal_2 < var_1_6 [L75] COND TRUE (var_1_6 != var_1_5) || stepLocal_3 [L76] var_1_10 = (((10000 - var_1_11) - var_1_5) + ((((var_1_12) < 0 ) ? -(var_1_12) : (var_1_12)))) [L126] RET step() [L127] CALL, EXPR property() [L117] EXPR (((((last_1_var_1_8 && last_1_var_1_8) ? (var_1_1 == ((unsigned short int) ((((((56892) < (var_1_4)) ? (56892) : (var_1_4))) - var_1_5) - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))))) : ((((((var_1_7) > (var_1_5)) ? (var_1_7) : (var_1_5))) < var_1_6) ? (var_1_1 == ((unsigned short int) var_1_5)) : 1)) && (var_1_8 == ((unsigned char) (((var_1_7 >= var_1_5) && (var_1_4 >= var_1_1)) || var_1_9)))) && ((var_1_17 < var_1_6) ? (((var_1_6 != var_1_5) || var_1_9) ? (var_1_10 == ((signed short int) (((10000 - var_1_11) - var_1_5) + ((((var_1_12) < 0 ) ? -(var_1_12) : (var_1_12)))))) : (var_1_10 == ((signed short int) var_1_4))) : (var_1_10 == ((signed short int) var_1_13)))) && (var_1_8 ? (var_1_14 == ((unsigned short int) (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) - ((((var_1_5) > ((var_1_16 - var_1_11))) ? (var_1_5) : ((var_1_16 - var_1_11))))))) : 1)) && ((((((var_1_13) > ((var_1_16 << var_1_7))) ? (var_1_13) : ((var_1_16 << var_1_7)))) >= var_1_14) ? (var_1_17 == ((unsigned long int) var_1_11)) : (var_1_17 == ((unsigned long int) (var_1_6 + var_1_5)))) [L117] EXPR var_1_16 << var_1_7 [L117] EXPR ((var_1_13) > ((var_1_16 << var_1_7))) ? (var_1_13) : ((var_1_16 << var_1_7)) [L117] EXPR (((((last_1_var_1_8 && last_1_var_1_8) ? (var_1_1 == ((unsigned short int) ((((((56892) < (var_1_4)) ? (56892) : (var_1_4))) - var_1_5) - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))))) : ((((((var_1_7) > (var_1_5)) ? (var_1_7) : (var_1_5))) < var_1_6) ? (var_1_1 == ((unsigned short int) var_1_5)) : 1)) && (var_1_8 == ((unsigned char) (((var_1_7 >= var_1_5) && (var_1_4 >= var_1_1)) || var_1_9)))) && ((var_1_17 < var_1_6) ? (((var_1_6 != var_1_5) || var_1_9) ? (var_1_10 == ((signed short int) (((10000 - var_1_11) - var_1_5) + ((((var_1_12) < 0 ) ? -(var_1_12) : (var_1_12)))))) : (var_1_10 == ((signed short int) var_1_4))) : (var_1_10 == ((signed short int) var_1_13)))) && (var_1_8 ? (var_1_14 == ((unsigned short int) (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) - ((((var_1_5) > ((var_1_16 - var_1_11))) ? (var_1_5) : ((var_1_16 - var_1_11))))))) : 1)) && ((((((var_1_13) > ((var_1_16 << var_1_7))) ? (var_1_13) : ((var_1_16 << var_1_7)))) >= var_1_14) ? (var_1_17 == ((unsigned long int) var_1_11)) : (var_1_17 == ((unsigned long int) (var_1_6 + var_1_5)))) [L117-L118] return ((((((last_1_var_1_8 && last_1_var_1_8) ? (var_1_1 == ((unsigned short int) ((((((56892) < (var_1_4)) ? (56892) : (var_1_4))) - var_1_5) - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))))) : ((((((var_1_7) > (var_1_5)) ? (var_1_7) : (var_1_5))) < var_1_6) ? (var_1_1 == ((unsigned short int) var_1_5)) : 1)) && (var_1_8 == ((unsigned char) (((var_1_7 >= var_1_5) && (var_1_4 >= var_1_1)) || var_1_9)))) && ((var_1_17 < var_1_6) ? (((var_1_6 != var_1_5) || var_1_9) ? (var_1_10 == ((signed short int) (((10000 - var_1_11) - var_1_5) + ((((var_1_12) < 0 ) ? -(var_1_12) : (var_1_12)))))) : (var_1_10 == ((signed short int) var_1_4))) : (var_1_10 == ((signed short int) var_1_13)))) && (var_1_8 ? (var_1_14 == ((unsigned short int) (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) - ((((var_1_5) > ((var_1_16 - var_1_11))) ? (var_1_5) : ((var_1_16 - var_1_11))))))) : 1)) && ((((((var_1_13) > ((var_1_16 << var_1_7))) ? (var_1_13) : ((var_1_16 << var_1_7)))) >= var_1_14) ? (var_1_17 == ((unsigned long int) var_1_11)) : (var_1_17 == ((unsigned long int) (var_1_6 + var_1_5))))) && ((var_1_5 == var_1_16) ? (var_1_8 ? (var_1_18 == ((unsigned short int) (((((var_1_16 + 30393) - var_1_5) < 0 ) ? -((var_1_16 + 30393) - var_1_5) : ((var_1_16 + 30393) - var_1_5))))) : (var_1_18 == ((unsigned short int) var_1_4))) : (var_1_9 ? (var_1_18 == ((unsigned short int) 200)) : 1)) ; [L127] RET, EXPR property() [L127] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_8=0, var_1_10=26378, var_1_11=0, var_1_12=-16383, var_1_13=32766, var_1_14=32768, var_1_16=26378, var_1_17=0, var_1_18=200, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=1, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_8=0, var_1_10=26378, var_1_11=0, var_1_12=-16383, var_1_13=32766, var_1_14=32768, var_1_16=26378, var_1_17=0, var_1_18=200, var_1_1=4, var_1_4=59146, var_1_5=5, var_1_6=32766, var_1_7=32767, var_1_8=1, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 1, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:57:18,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ --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 32bit --witnessprinter.graph.data.programhash dffb49b583bf1b2953c0c17a06d6fc63bf48c484ad06befbc2660a12f206f89f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:57:21,769 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:57:21,927 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:57:21,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:57:21,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:57:21,996 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:57:21,997 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:57:21,998 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:57:21,999 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:57:22,005 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:57:22,007 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:57:22,008 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:57:22,008 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:57:22,010 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:57:22,011 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:57:22,011 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:57:22,013 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:57:22,013 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:57:22,014 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:57:22,015 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:57:22,016 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:57:22,017 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:57:22,017 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:57:22,018 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:57:22,018 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:57:22,019 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:57:22,019 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:57:22,020 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:57:22,020 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:57:22,021 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:57:22,023 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:57:22,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:57:22,023 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:57:22,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:22,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:57:22,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:57:22,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:57:22,025 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:57:22,025 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:57:22,027 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:57:22,027 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:57:22,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:57:22,028 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_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dffb49b583bf1b2953c0c17a06d6fc63bf48c484ad06befbc2660a12f206f89f [2023-11-19 04:57:22,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:57:22,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:57:22,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:57:22,592 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:57:22,592 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:57:22,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-10.i [2023-11-19 04:57:26,018 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:57:26,328 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:57:26,329 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-10.i [2023-11-19 04:57:26,346 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/data/65f8aa480/92788b3c365d47c48e826b0a629bcff4/FLAGa4333fb90 [2023-11-19 04:57:26,366 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/data/65f8aa480/92788b3c365d47c48e826b0a629bcff4 [2023-11-19 04:57:26,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:57:26,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:57:26,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:26,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:57:26,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:57:26,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:26" (1/1) ... [2023-11-19 04:57:26,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a828a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:26, skipping insertion in model container [2023-11-19 04:57:26,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:26" (1/1) ... [2023-11-19 04:57:26,436 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:57:26,613 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_280db816-4ee4-4f7b-961c-20305b8e0d2e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-10.i[915,928] [2023-11-19 04:57:26,693 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:26,714 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:57:26,731 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_280db816-4ee4-4f7b-961c-20305b8e0d2e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-10.i[915,928] [2023-11-19 04:57:26,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:26,804 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:57:26,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:26 WrapperNode [2023-11-19 04:57:26,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:26,807 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:26,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:57:26,807 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:57:26,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:26" (1/1) ... [2023-11-19 04:57:26,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:26" (1/1) ... [2023-11-19 04:57:26,872 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2023-11-19 04:57:26,872 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:26,873 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:57:26,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:57:26,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:57:26,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:26" (1/1) ... [2023-11-19 04:57:26,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:26" (1/1) ... [2023-11-19 04:57:26,904 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:26" (1/1) ... [2023-11-19 04:57:26,904 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:26" (1/1) ... [2023-11-19 04:57:26,918 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:26" (1/1) ... [2023-11-19 04:57:26,923 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:26" (1/1) ... [2023-11-19 04:57:26,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:26" (1/1) ... [2023-11-19 04:57:26,929 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:26" (1/1) ... [2023-11-19 04:57:26,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:57:26,936 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:57:26,936 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:57:26,936 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:57:26,937 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:26" (1/1) ... [2023-11-19 04:57:26,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:26,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:57:26,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:57:27,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:57:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:57:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:57:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:57:27,043 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:57:27,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:57:27,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:57:27,146 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:57:27,149 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:57:27,690 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:57:27,700 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:57:27,701 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:57:27,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:27 BoogieIcfgContainer [2023-11-19 04:57:27,706 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:57:27,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:57:27,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:57:27,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:57:27,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:57:26" (1/3) ... [2023-11-19 04:57:27,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9628be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:27, skipping insertion in model container [2023-11-19 04:57:27,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:26" (2/3) ... [2023-11-19 04:57:27,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9628be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:27, skipping insertion in model container [2023-11-19 04:57:27,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:27" (3/3) ... [2023-11-19 04:57:27,719 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-10.i [2023-11-19 04:57:27,745 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:57:27,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:57:27,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:57:27,836 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;@49e6b6bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:57:27,837 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:57:27,844 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 04:57:27,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-19 04:57:27,868 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:27,869 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:27,870 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:57:27,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:27,878 INFO L85 PathProgramCache]: Analyzing trace with hash -218280069, now seen corresponding path program 1 times [2023-11-19 04:57:27,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:57:27,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954818552] [2023-11-19 04:57:27,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:27,898 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 [2023-11-19 04:57:27,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:57:27,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:57:27,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:57:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:28,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:57:28,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:57:28,275 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-19 04:57:28,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:57:28,277 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:57:28,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [954818552] [2023-11-19 04:57:28,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [954818552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:28,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:28,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:57:28,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160800707] [2023-11-19 04:57:28,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:28,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:57:28,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:57:28,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:57:28,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:57:28,328 INFO L87 Difference]: Start difference. First operand has 59 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 04:57:28,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:28,373 INFO L93 Difference]: Finished difference Result 111 states and 188 transitions. [2023-11-19 04:57:28,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:57:28,376 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 118 [2023-11-19 04:57:28,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:28,385 INFO L225 Difference]: With dead ends: 111 [2023-11-19 04:57:28,385 INFO L226 Difference]: Without dead ends: 55 [2023-11-19 04:57:28,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:57:28,395 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:28,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:57:28,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-19 04:57:28,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-19 04:57:28,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 04:57:28,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 81 transitions. [2023-11-19 04:57:28,465 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 81 transitions. Word has length 118 [2023-11-19 04:57:28,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:28,465 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 81 transitions. [2023-11-19 04:57:28,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 04:57:28,466 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 81 transitions. [2023-11-19 04:57:28,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-19 04:57:28,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:28,471 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:28,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:57:28,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:57:28,673 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:57:28,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:28,674 INFO L85 PathProgramCache]: Analyzing trace with hash -2032458181, now seen corresponding path program 1 times [2023-11-19 04:57:28,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:57:28,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654396561] [2023-11-19 04:57:28,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:28,676 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 [2023-11-19 04:57:28,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:57:28,678 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:57:28,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:57:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:28,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:57:28,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:57:29,251 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 04:57:29,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:57:29,253 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:57:29,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654396561] [2023-11-19 04:57:29,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654396561] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:29,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:29,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:57:29,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987175084] [2023-11-19 04:57:29,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:29,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:57:29,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:57:29,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:57:29,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:57:29,266 INFO L87 Difference]: Start difference. First operand 55 states and 81 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 04:57:29,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:29,521 INFO L93 Difference]: Finished difference Result 191 states and 281 transitions. [2023-11-19 04:57:29,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:57:29,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 118 [2023-11-19 04:57:29,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:29,527 INFO L225 Difference]: With dead ends: 191 [2023-11-19 04:57:29,527 INFO L226 Difference]: Without dead ends: 139 [2023-11-19 04:57:29,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:57:29,529 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 85 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:29,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 257 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:57:29,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-19 04:57:29,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 102. [2023-11-19 04:57:29,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 63 states have (on average 1.253968253968254) internal successors, (79), 63 states have internal predecessors, (79), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 04:57:29,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 151 transitions. [2023-11-19 04:57:29,580 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 151 transitions. Word has length 118 [2023-11-19 04:57:29,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:29,583 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 151 transitions. [2023-11-19 04:57:29,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 04:57:29,583 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 151 transitions. [2023-11-19 04:57:29,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-19 04:57:29,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:29,591 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:29,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:57:29,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:57:29,796 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:57:29,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:29,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1986650346, now seen corresponding path program 1 times [2023-11-19 04:57:29,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:57:29,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762264945] [2023-11-19 04:57:29,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:29,799 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 [2023-11-19 04:57:29,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:57:29,800 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:57:29,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280db816-4ee4-4f7b-961c-20305b8e0d2e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 04:57:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:30,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-19 04:57:30,031 INFO L285 TraceCheckSpWp]: Computing forward predicates...