./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-66.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_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 ee1d4ab2254e09ab1c7ffa7d0c8fe840fd7239014a5c1c2ca5c976023f5a71b5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:17:37,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:17:37,882 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:17:37,893 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:17:37,894 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:17:37,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:17:37,924 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:17:37,925 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:17:37,926 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:17:37,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:17:37,928 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:17:37,929 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:17:37,930 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:17:37,933 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:17:37,933 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:17:37,934 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:17:37,934 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:17:37,940 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:17:37,941 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:17:37,942 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:17:37,942 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:17:37,943 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:17:37,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:17:37,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:17:37,944 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:17:37,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:17:37,945 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:17:37,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:17:37,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:17:37,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:17:37,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:17:37,948 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:17:37,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:17:37,949 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:17:37,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:17:37,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:17:37,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:37,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:17:37,951 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:17:37,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:17:37,951 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:17:37,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:17:37,952 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:17:37,952 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:17:37,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:17:37,953 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_50d4b2c3-3b38-43be-af02-260b573e9d9c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee1d4ab2254e09ab1c7ffa7d0c8fe840fd7239014a5c1c2ca5c976023f5a71b5 [2023-11-19 05:17:38,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:17:38,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:17:38,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:17:38,289 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:17:38,289 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:17:38,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-66.i [2023-11-19 05:17:41,305 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:17:41,555 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:17:41,556 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-66.i [2023-11-19 05:17:41,574 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/data/f9f947a6f/10dc9742caf844cb8916408d51fe46fb/FLAGf68d008b1 [2023-11-19 05:17:41,588 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/data/f9f947a6f/10dc9742caf844cb8916408d51fe46fb [2023-11-19 05:17:41,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:17:41,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:17:41,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:41,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:17:41,599 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:17:41,600 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:41" (1/1) ... [2023-11-19 05:17:41,601 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8998ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:41, skipping insertion in model container [2023-11-19 05:17:41,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:41" (1/1) ... [2023-11-19 05:17:41,635 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:17:41,878 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_50d4b2c3-3b38-43be-af02-260b573e9d9c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-66.i[919,932] [2023-11-19 05:17:41,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:41,956 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:17:41,970 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_50d4b2c3-3b38-43be-af02-260b573e9d9c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-66.i[919,932] [2023-11-19 05:17:42,005 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:42,024 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:17:42,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:42 WrapperNode [2023-11-19 05:17:42,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:42,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:42,026 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:17:42,026 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:17:42,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:42" (1/1) ... [2023-11-19 05:17:42,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:42" (1/1) ... [2023-11-19 05:17:42,111 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 186 [2023-11-19 05:17:42,112 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:42,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:17:42,113 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:17:42,113 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:17:42,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:42" (1/1) ... [2023-11-19 05:17:42,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:42" (1/1) ... [2023-11-19 05:17:42,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:42" (1/1) ... [2023-11-19 05:17:42,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:42" (1/1) ... [2023-11-19 05:17:42,148 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:42" (1/1) ... [2023-11-19 05:17:42,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:42" (1/1) ... [2023-11-19 05:17:42,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:42" (1/1) ... [2023-11-19 05:17:42,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:42" (1/1) ... [2023-11-19 05:17:42,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:17:42,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:17:42,194 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:17:42,194 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:17:42,195 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:42" (1/1) ... [2023-11-19 05:17:42,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:42,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:17:42,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:17:42,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:17:42,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:17:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:17:42,277 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:17:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:17:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:17:42,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:17:42,409 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:17:42,414 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:17:42,841 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:17:43,166 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:17:43,166 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:17:43,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:43 BoogieIcfgContainer [2023-11-19 05:17:43,172 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:17:43,176 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:17:43,176 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:17:43,179 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:17:43,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:17:41" (1/3) ... [2023-11-19 05:17:43,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7659f9eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:17:43, skipping insertion in model container [2023-11-19 05:17:43,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:42" (2/3) ... [2023-11-19 05:17:43,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7659f9eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:17:43, skipping insertion in model container [2023-11-19 05:17:43,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:43" (3/3) ... [2023-11-19 05:17:43,185 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-66.i [2023-11-19 05:17:43,204 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:17:43,204 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:17:43,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:17:43,269 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;@19b97a5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:17:43,269 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:17:43,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 05:17:43,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 05:17:43,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:43,286 INFO L195 NwaCegarLoop]: trace histogram [24, 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 05:17:43,287 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:43,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:43,292 INFO L85 PathProgramCache]: Analyzing trace with hash 479445581, now seen corresponding path program 1 times [2023-11-19 05:17:43,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:43,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369792310] [2023-11-19 05:17:43,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:43,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:43,505 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:17:43,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [697447720] [2023-11-19 05:17:43,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:43,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:17:43,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:17:43,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:17:43,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:17:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:17:43,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:17:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:17:43,962 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:17:43,965 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:17:43,966 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:17:43,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:17:44,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:17:44,192 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:17:44,196 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:17:44,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:17:44 BoogieIcfgContainer [2023-11-19 05:17:44,305 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:17:44,305 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:17:44,305 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:17:44,306 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:17:44,306 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:43" (3/4) ... [2023-11-19 05:17:44,309 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:17:44,311 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:17:44,312 INFO L158 Benchmark]: Toolchain (without parser) took 2719.54ms. Allocated memory is still 172.0MB. Free memory was 139.3MB in the beginning and 88.7MB in the end (delta: 50.7MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2023-11-19 05:17:44,313 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 130.0MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:17:44,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.03ms. Allocated memory is still 172.0MB. Free memory was 139.3MB in the beginning and 130.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 05:17:44,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.60ms. Allocated memory is still 172.0MB. Free memory was 130.5MB in the beginning and 127.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:17:44,317 INFO L158 Benchmark]: Boogie Preprocessor took 79.65ms. Allocated memory is still 172.0MB. Free memory was 127.2MB in the beginning and 125.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:17:44,318 INFO L158 Benchmark]: RCFGBuilder took 979.28ms. Allocated memory is still 172.0MB. Free memory was 125.1MB in the beginning and 138.0MB in the end (delta: -12.8MB). Peak memory consumption was 75.2MB. Max. memory is 16.1GB. [2023-11-19 05:17:44,319 INFO L158 Benchmark]: TraceAbstraction took 1129.18ms. Allocated memory is still 172.0MB. Free memory was 136.9MB in the beginning and 88.7MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-11-19 05:17:44,321 INFO L158 Benchmark]: Witness Printer took 5.74ms. Allocated memory is still 172.0MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:17:44,324 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 130.0MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.03ms. Allocated memory is still 172.0MB. Free memory was 139.3MB in the beginning and 130.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.60ms. Allocated memory is still 172.0MB. Free memory was 130.5MB in the beginning and 127.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.65ms. Allocated memory is still 172.0MB. Free memory was 127.2MB in the beginning and 125.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 979.28ms. Allocated memory is still 172.0MB. Free memory was 125.1MB in the beginning and 138.0MB in the end (delta: -12.8MB). Peak memory consumption was 75.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1129.18ms. Allocated memory is still 172.0MB. Free memory was 136.9MB in the beginning and 88.7MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Witness Printer took 5.74ms. Allocated memory is still 172.0MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someUnaryDOUBLEoperation at line 81. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 50; [L23] signed char var_1_3 = 8; [L24] signed char var_1_4 = 10; [L25] double var_1_5 = 16.5; [L26] signed char var_1_6 = 64; [L27] signed char var_1_7 = 2; [L28] unsigned short int var_1_8 = 256; [L29] unsigned short int var_1_10 = 63583; [L30] unsigned short int var_1_11 = 33789; [L31] unsigned char var_1_12 = 1; [L32] unsigned char var_1_14 = 0; [L33] signed long int var_1_15 = 8; [L34] signed short int var_1_16 = -16; [L35] signed short int var_1_18 = 16; [L36] signed short int var_1_19 = 25; [L37] signed short int var_1_20 = 25; [L38] signed short int var_1_21 = 50; [L39] signed long int var_1_22 = -8; [L40] unsigned long int var_1_26 = 10; [L41] signed long int var_1_28 = -10000; [L42] signed long int var_1_29 = -1263929197; [L43] signed short int var_1_31 = 1; [L44] unsigned char var_1_36 = 32; [L45] unsigned char var_1_38 = 2; [L46] double var_1_39 = 3.6; [L47] double var_1_40 = 24.25; [L48] double var_1_41 = 31.25; [L49] unsigned long int var_1_42 = 10; [L50] unsigned char last_1_var_1_12 = 1; [L186] isInitial = 1 [L187] FCALL initially() [L188] COND TRUE 1 [L189] CALL updateLastVariables() [L179] last_1_var_1_12 = var_1_12 [L189] RET updateLastVariables() [L190] CALL updateVariables() [L140] var_1_3 = __VERIFIER_nondet_char() [L141] CALL assume_abort_if_not(var_1_3 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_3 >= -63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L142] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L143] var_1_4 = __VERIFIER_nondet_char() [L144] CALL assume_abort_if_not(var_1_4 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not(var_1_4 >= -63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L145] CALL assume_abort_if_not(var_1_4 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_4 <= 63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L146] var_1_6 = __VERIFIER_nondet_char() [L147] CALL assume_abort_if_not(var_1_6 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_6 >= -1) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=2, var_1_8=256] [L148] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=2, var_1_8=256] [L149] var_1_7 = __VERIFIER_nondet_char() [L150] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L151] CALL assume_abort_if_not(var_1_7 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_7 <= 127) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L152] var_1_10 = __VERIFIER_nondet_ushort() [L153] CALL assume_abort_if_not(var_1_10 >= 49150) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not(var_1_10 >= 49150) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L154] CALL assume_abort_if_not(var_1_10 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not(var_1_10 <= 65534) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L155] var_1_11 = __VERIFIER_nondet_ushort() [L156] CALL assume_abort_if_not(var_1_11 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not(var_1_11 >= 32767) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L157] CALL assume_abort_if_not(var_1_11 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not(var_1_11 <= 65534) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L158] var_1_14 = __VERIFIER_nondet_uchar() [L159] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L160] CALL assume_abort_if_not(var_1_14 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not(var_1_14 <= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L161] var_1_20 = __VERIFIER_nondet_short() [L162] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L163] CALL assume_abort_if_not(var_1_20 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L163] RET assume_abort_if_not(var_1_20 <= 16383) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L164] var_1_21 = __VERIFIER_nondet_short() [L165] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L165] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L166] CALL assume_abort_if_not(var_1_21 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not(var_1_21 <= 16383) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L167] var_1_29 = __VERIFIER_nondet_long() [L168] CALL assume_abort_if_not(var_1_29 >= -2147483646) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_29 >= -2147483646) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L169] CALL assume_abort_if_not(var_1_29 <= -1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L169] RET assume_abort_if_not(var_1_29 <= -1073741823) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_38=2, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L170] var_1_38 = __VERIFIER_nondet_uchar() [L171] CALL assume_abort_if_not(var_1_38 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_38=0, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L171] RET assume_abort_if_not(var_1_38 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_38=0, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L172] CALL assume_abort_if_not(var_1_38 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_38=0, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L172] RET assume_abort_if_not(var_1_38 <= 254) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_38=0, var_1_39=18/5, var_1_3=-12, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L173] var_1_40 = __VERIFIER_nondet_double() [L174] CALL assume_abort_if_not((var_1_40 >= -922337.2036854765600e+13F && var_1_40 <= -1.0e-20F) || (var_1_40 <= 9223372.036854765600e+12F && var_1_40 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_38=0, var_1_39=18/5, var_1_3=-12, var_1_40=2, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L174] RET assume_abort_if_not((var_1_40 >= -922337.2036854765600e+13F && var_1_40 <= -1.0e-20F) || (var_1_40 <= 9223372.036854765600e+12F && var_1_40 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_38=0, var_1_39=18/5, var_1_3=-12, var_1_40=2, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L175] var_1_41 = __VERIFIER_nondet_double() [L176] CALL assume_abort_if_not((var_1_41 >= -922337.2036854765600e+13F && var_1_41 <= -1.0e-20F) || (var_1_41 <= 9223372.036854765600e+12F && var_1_41 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_38=0, var_1_39=18/5, var_1_3=-12, var_1_40=2, var_1_41=3, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) [L176] RET assume_abort_if_not((var_1_41 >= -922337.2036854765600e+13F && var_1_41 <= -1.0e-20F) || (var_1_41 <= 9223372.036854765600e+12F && var_1_41 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_38=0, var_1_39=18/5, var_1_3=-12, var_1_40=2, var_1_41=3, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L190] RET updateVariables() [L191] CALL step() [L54] COND FALSE !(var_1_16 > var_1_18) [L59] var_1_26 = var_1_8 [L60] COND FALSE !(((((-256) < 0 ) ? -(-256) : (-256))) < var_1_19) [L63] var_1_28 = var_1_29 [L65] COND TRUE var_1_8 > var_1_18 [L66] COND TRUE var_1_29 < var_1_18 [L67] COND TRUE var_1_29 <= (-64 & var_1_19) [L68] var_1_31 = ((((var_1_1) > (((((8) < (var_1_1)) ? (8) : (var_1_1))))) ? (var_1_1) : (((((8) < (var_1_1)) ? (8) : (var_1_1)))))) [L74] COND FALSE !(((((((((var_1_8) > (var_1_15)) ? (var_1_8) : (var_1_15)))) > (var_1_1)) ? (((((var_1_8) > (var_1_15)) ? (var_1_8) : (var_1_15)))) : (var_1_1))) > var_1_8) [L79] var_1_36 = var_1_38 [L81] var_1_39 = ((((((((var_1_40) < 0 ) ? -(var_1_40) : (var_1_40)))) > (((((var_1_41) < (100.75)) ? (var_1_41) : (100.75))))) ? (((((var_1_40) < 0 ) ? -(var_1_40) : (var_1_40)))) : (((((var_1_41) < (100.75)) ? (var_1_41) : (100.75)))))) [L82] COND FALSE !(var_1_8 <= (~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))))) [L93] var_1_42 = var_1_38 [L95] signed char stepLocal_1 = var_1_6; [L96] unsigned char stepLocal_0 = last_1_var_1_12; [L97] COND FALSE !(-25 == stepLocal_1) [L102] var_1_8 = ((((var_1_7) > (var_1_11)) ? (var_1_7) : (var_1_11))) [L104] signed char stepLocal_2 = var_1_7; [L105] COND TRUE var_1_8 >= stepLocal_2 [L106] var_1_12 = (! var_1_14) [L108] COND TRUE \read(var_1_12) [L109] var_1_1 = (var_1_3 + var_1_4) [L111] COND TRUE var_1_4 >= (var_1_6 - var_1_7) [L112] COND TRUE \read(var_1_12) [L113] var_1_5 = 8.25 [L116] signed char stepLocal_4 = var_1_6; [L117] COND TRUE var_1_1 < stepLocal_4 [L118] var_1_18 = (var_1_6 - var_1_7) [L122] COND TRUE \read(var_1_12) [L123] var_1_19 = ((var_1_7 - ((((var_1_20) < (var_1_21)) ? (var_1_20) : (var_1_21)))) + var_1_6) [L125] COND TRUE -64 > (var_1_6 + var_1_19) [L126] var_1_15 = (var_1_11 - var_1_7) [L134] signed long int stepLocal_3 = ((((var_1_11) > (var_1_18)) ? (var_1_11) : (var_1_18))) + (var_1_15 / var_1_10); [L135] COND FALSE !(var_1_19 > stepLocal_3) [L191] RET step() [L192] CALL, EXPR property() [L182-L183] return (((((((var_1_12 ? (var_1_1 == ((signed char) (var_1_3 + var_1_4))) : 1) && ((var_1_4 >= (var_1_6 - var_1_7)) ? (var_1_12 ? (var_1_5 == ((double) 8.25)) : 1) : 1)) && ((-25 == var_1_6) ? ((last_1_var_1_12 && last_1_var_1_12) ? (var_1_8 == ((unsigned short int) ((((((var_1_10 - 10) - 16)) > ((var_1_11 - var_1_7))) ? (((var_1_10 - 10) - 16)) : ((var_1_11 - var_1_7)))))) : 1) : (var_1_8 == ((unsigned short int) ((((var_1_7) > (var_1_11)) ? (var_1_7) : (var_1_11))))))) && ((var_1_8 >= var_1_7) ? (var_1_12 == ((unsigned char) (! var_1_14))) : 1)) && ((-64 > (var_1_6 + var_1_19)) ? (var_1_15 == ((signed long int) (var_1_11 - var_1_7))) : ((! var_1_12) ? (var_1_12 ? (var_1_15 == ((signed long int) 4)) : 1) : 1))) && ((var_1_19 > (((((var_1_11) > (var_1_18)) ? (var_1_11) : (var_1_18))) + (var_1_15 / var_1_10))) ? (var_1_16 == ((signed short int) var_1_4)) : 1)) && ((var_1_1 < var_1_6) ? (var_1_18 == ((signed short int) (var_1_6 - var_1_7))) : (var_1_18 == ((signed short int) (((((var_1_6 + var_1_4)) < (var_1_1)) ? ((var_1_6 + var_1_4)) : (var_1_1))))))) && (var_1_12 ? (var_1_19 == ((signed short int) ((var_1_7 - ((((var_1_20) < (var_1_21)) ? (var_1_20) : (var_1_21)))) + var_1_6))) : 1) ; [L192] RET, EXPR property() [L192] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=32640, var_1_16=-16, var_1_18=0, var_1_19=-192, var_1_1=51, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=256, var_1_28=-1073741823, var_1_29=-1073741823, var_1_31=50, var_1_36=0, var_1_38=0, var_1_39=4, var_1_3=-12, var_1_40=2, var_1_41=3, var_1_42=0, var_1_4=63, var_1_5=33/4, var_1_6=127, var_1_7=127, var_1_8=32767] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=32767, var_1_12=1, var_1_14=0, var_1_15=32640, var_1_16=-16, var_1_18=0, var_1_19=-192, var_1_1=51, var_1_20=446, var_1_21=446, var_1_22=-8, var_1_26=256, var_1_28=-1073741823, var_1_29=-1073741823, var_1_31=50, var_1_36=0, var_1_38=0, var_1_39=4, var_1_3=-12, var_1_40=2, var_1_41=3, var_1_42=0, var_1_4=63, var_1_5=33/4, var_1_6=127, var_1_7=127, var_1_8=32767] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 24, 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=46occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 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 05:17:44,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 ee1d4ab2254e09ab1c7ffa7d0c8fe840fd7239014a5c1c2ca5c976023f5a71b5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:17:46,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:17:47,055 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:17:47,070 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:17:47,071 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:17:47,100 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:17:47,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:17:47,103 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:17:47,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:17:47,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:17:47,108 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:17:47,109 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:17:47,109 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:17:47,111 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:17:47,112 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:17:47,113 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:17:47,114 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:17:47,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:17:47,119 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:17:47,119 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:17:47,120 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:17:47,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:17:47,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:17:47,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:17:47,122 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:17:47,122 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:17:47,123 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:17:47,123 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:17:47,124 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:17:47,124 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:17:47,126 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:17:47,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:17:47,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:17:47,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:47,127 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:17:47,127 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:17:47,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:17:47,128 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:17:47,128 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:17:47,129 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:17:47,130 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:17:47,130 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:17:47,130 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_50d4b2c3-3b38-43be-af02-260b573e9d9c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee1d4ab2254e09ab1c7ffa7d0c8fe840fd7239014a5c1c2ca5c976023f5a71b5 [2023-11-19 05:17:47,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:17:47,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:17:47,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:17:47,561 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:17:47,561 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:17:47,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-66.i [2023-11-19 05:17:50,651 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:17:50,982 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:17:50,982 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-66.i [2023-11-19 05:17:50,996 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/data/54416e1b5/bf2647ca2b3840fdb00a4d6f1c76a8ca/FLAG296266236 [2023-11-19 05:17:51,016 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/data/54416e1b5/bf2647ca2b3840fdb00a4d6f1c76a8ca [2023-11-19 05:17:51,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:17:51,024 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:17:51,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:51,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:17:51,035 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:17:51,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:51" (1/1) ... [2023-11-19 05:17:51,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544051d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:51, skipping insertion in model container [2023-11-19 05:17:51,039 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:51" (1/1) ... [2023-11-19 05:17:51,088 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:17:51,274 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_50d4b2c3-3b38-43be-af02-260b573e9d9c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-66.i[919,932] [2023-11-19 05:17:51,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:51,365 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:17:51,377 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_50d4b2c3-3b38-43be-af02-260b573e9d9c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-66.i[919,932] [2023-11-19 05:17:51,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:51,435 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:17:51,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:51 WrapperNode [2023-11-19 05:17:51,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:51,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:51,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:17:51,437 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:17:51,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:51" (1/1) ... [2023-11-19 05:17:51,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:51" (1/1) ... [2023-11-19 05:17:51,512 INFO L138 Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 179 [2023-11-19 05:17:51,513 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:51,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:17:51,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:17:51,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:17:51,533 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:51" (1/1) ... [2023-11-19 05:17:51,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:51" (1/1) ... [2023-11-19 05:17:51,539 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:51" (1/1) ... [2023-11-19 05:17:51,539 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:51" (1/1) ... [2023-11-19 05:17:51,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:51" (1/1) ... [2023-11-19 05:17:51,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:51" (1/1) ... [2023-11-19 05:17:51,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:51" (1/1) ... [2023-11-19 05:17:51,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:51" (1/1) ... [2023-11-19 05:17:51,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:17:51,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:17:51,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:17:51,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:17:51,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:51" (1/1) ... [2023-11-19 05:17:51,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:51,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:17:51,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:17:51,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:17:51,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:17:51,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:17:51,720 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:17:51,720 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:17:51,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:17:51,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:17:51,814 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:17:51,816 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:17:52,398 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:17:52,413 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:17:52,422 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:17:52,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:52 BoogieIcfgContainer [2023-11-19 05:17:52,429 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:17:52,432 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:17:52,433 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:17:52,436 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:17:52,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:17:51" (1/3) ... [2023-11-19 05:17:52,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cee6cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:17:52, skipping insertion in model container [2023-11-19 05:17:52,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:51" (2/3) ... [2023-11-19 05:17:52,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cee6cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:17:52, skipping insertion in model container [2023-11-19 05:17:52,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:52" (3/3) ... [2023-11-19 05:17:52,442 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-66.i [2023-11-19 05:17:52,467 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:17:52,467 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:17:52,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:17:52,589 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;@2d33f8de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:17:52,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:17:52,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 58 states have (on average 1.4827586206896552) internal successors, (86), 59 states have internal predecessors, (86), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 05:17:52,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-19 05:17:52,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:52,628 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 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, 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 05:17:52,632 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:52,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:52,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1675600109, now seen corresponding path program 1 times [2023-11-19 05:17:52,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:17:52,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185642804] [2023-11-19 05:17:52,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:52,672 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 05:17:52,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:17:52,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 05:17:52,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 05:17:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:53,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:17:53,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:17:53,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2023-11-19 05:17:53,142 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:17:53,143 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:17:53,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185642804] [2023-11-19 05:17:53,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185642804] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:53,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:53,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:17:53,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280003182] [2023-11-19 05:17:53,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:53,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:17:53,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:17:53,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:17:53,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:17:53,182 INFO L87 Difference]: Start difference. First operand has 85 states, 58 states have (on average 1.4827586206896552) internal successors, (86), 59 states have internal predecessors, (86), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-19 05:17:53,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:53,217 INFO L93 Difference]: Finished difference Result 163 states and 286 transitions. [2023-11-19 05:17:53,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:17:53,219 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 161 [2023-11-19 05:17:53,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:53,228 INFO L225 Difference]: With dead ends: 163 [2023-11-19 05:17:53,228 INFO L226 Difference]: Without dead ends: 81 [2023-11-19 05:17:53,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 160 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 05:17:53,236 INFO L413 NwaCegarLoop]: 127 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, 127 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 05:17:53,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:17:53,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-19 05:17:53,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2023-11-19 05:17:53,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 55 states have internal predecessors, (79), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 05:17:53,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 127 transitions. [2023-11-19 05:17:53,286 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 127 transitions. Word has length 161 [2023-11-19 05:17:53,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:53,287 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 127 transitions. [2023-11-19 05:17:53,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-19 05:17:53,288 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 127 transitions. [2023-11-19 05:17:53,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-19 05:17:53,292 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:53,292 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 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, 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 05:17:53,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 05:17:53,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 05:17:53,501 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:53,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:53,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1970234289, now seen corresponding path program 1 times [2023-11-19 05:17:53,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:17:53,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196280773] [2023-11-19 05:17:53,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:53,503 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 05:17:53,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:17:53,505 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 05:17:53,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 05:17:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:53,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:17:53,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:17:54,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-19 05:17:54,198 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:17:54,198 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:17:54,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196280773] [2023-11-19 05:17:54,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196280773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:54,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:54,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:17:54,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129197677] [2023-11-19 05:17:54,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:54,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:17:54,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:17:54,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:17:54,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:54,203 INFO L87 Difference]: Start difference. First operand 81 states and 127 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 05:17:54,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:54,313 INFO L93 Difference]: Finished difference Result 237 states and 375 transitions. [2023-11-19 05:17:54,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:17:54,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 161 [2023-11-19 05:17:54,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:54,318 INFO L225 Difference]: With dead ends: 237 [2023-11-19 05:17:54,319 INFO L226 Difference]: Without dead ends: 159 [2023-11-19 05:17:54,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:54,322 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 54 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:54,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 248 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:17:54,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-19 05:17:54,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2023-11-19 05:17:54,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 106 states have (on average 1.4433962264150944) internal successors, (153), 106 states have internal predecessors, (153), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-19 05:17:54,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 249 transitions. [2023-11-19 05:17:54,357 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 249 transitions. Word has length 161 [2023-11-19 05:17:54,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:54,358 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 249 transitions. [2023-11-19 05:17:54,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 05:17:54,359 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 249 transitions. [2023-11-19 05:17:54,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-19 05:17:54,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:54,362 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 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, 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 05:17:54,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 05:17:54,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 05:17:54,568 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:54,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:54,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1902031181, now seen corresponding path program 1 times [2023-11-19 05:17:54,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:17:54,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793714767] [2023-11-19 05:17:54,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:54,571 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 05:17:54,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:17:54,577 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 05:17:54,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 05:17:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:54,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:17:54,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:17:55,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-19 05:17:55,728 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:17:55,729 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:17:55,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793714767] [2023-11-19 05:17:55,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793714767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:55,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:55,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:17:55,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022174997] [2023-11-19 05:17:55,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:55,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:17:55,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:17:55,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:17:55,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:55,746 INFO L87 Difference]: Start difference. First operand 157 states and 249 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 05:17:55,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:55,922 INFO L93 Difference]: Finished difference Result 375 states and 597 transitions. [2023-11-19 05:17:55,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:17:55,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 161 [2023-11-19 05:17:55,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:55,927 INFO L225 Difference]: With dead ends: 375 [2023-11-19 05:17:55,927 INFO L226 Difference]: Without dead ends: 221 [2023-11-19 05:17:55,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:55,930 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 25 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:55,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 226 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:17:55,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-19 05:17:55,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 216. [2023-11-19 05:17:56,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 140 states have (on average 1.3857142857142857) internal successors, (194), 140 states have internal predecessors, (194), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-19 05:17:56,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 338 transitions. [2023-11-19 05:17:56,009 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 338 transitions. Word has length 161 [2023-11-19 05:17:56,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:56,010 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 338 transitions. [2023-11-19 05:17:56,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-19 05:17:56,011 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 338 transitions. [2023-11-19 05:17:56,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-19 05:17:56,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:56,023 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 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, 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 05:17:56,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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)] Ended with exit code 0 [2023-11-19 05:17:56,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 05:17:56,230 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:56,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:56,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1667471603, now seen corresponding path program 1 times [2023-11-19 05:17:56,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:17:56,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11212388] [2023-11-19 05:17:56,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:56,233 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 05:17:56,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:17:56,234 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 05:17:56,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 (5)] Waiting until timeout for monitored process [2023-11-19 05:17:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:56,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:17:56,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:17:56,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 365 proven. 12 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2023-11-19 05:17:56,998 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:17:57,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 57 proven. 12 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-19 05:17:57,238 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:17:57,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11212388] [2023-11-19 05:17:57,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11212388] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:17:57,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [548063274] [2023-11-19 05:17:57,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:57,240 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:17:57,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:17:57,245 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:17:57,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 05:17:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:57,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:17:57,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:17:58,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 365 proven. 12 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2023-11-19 05:17:58,453 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:17:58,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 57 proven. 12 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-19 05:17:58,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [548063274] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:17:58,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836932704] [2023-11-19 05:17:58,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:58,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:17:58,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:17:58,649 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:17:58,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 05:17:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:58,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:17:58,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:17:59,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 365 proven. 12 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2023-11-19 05:17:59,248 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:17:59,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 57 proven. 12 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-19 05:17:59,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836932704] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:17:59,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-19 05:17:59,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2023-11-19 05:17:59,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482860080] [2023-11-19 05:17:59,419 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-19 05:17:59,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:17:59,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:17:59,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:17:59,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:17:59,422 INFO L87 Difference]: Start difference. First operand 216 states and 338 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2023-11-19 05:18:00,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:18:00,533 INFO L93 Difference]: Finished difference Result 485 states and 750 transitions. [2023-11-19 05:18:00,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 05:18:00,537 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 162 [2023-11-19 05:18:00,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:18:00,542 INFO L225 Difference]: With dead ends: 485 [2023-11-19 05:18:00,542 INFO L226 Difference]: Without dead ends: 322 [2023-11-19 05:18:00,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 972 GetRequests, 959 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=127, Unknown=0, NotChecked=0, Total=210 [2023-11-19 05:18:00,544 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 291 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:18:00,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 280 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 05:18:00,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-11-19 05:18:00,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 310. [2023-11-19 05:18:00,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 195 states have (on average 1.3384615384615384) internal successors, (261), 197 states have internal predecessors, (261), 108 states have call successors, (108), 6 states have call predecessors, (108), 6 states have return successors, (108), 106 states have call predecessors, (108), 108 states have call successors, (108) [2023-11-19 05:18:00,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 477 transitions. [2023-11-19 05:18:00,607 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 477 transitions. Word has length 162 [2023-11-19 05:18:00,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:18:00,608 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 477 transitions. [2023-11-19 05:18:00,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2023-11-19 05:18:00,609 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 477 transitions. [2023-11-19 05:18:00,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-19 05:18:00,613 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:18:00,613 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 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, 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 05:18:00,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 (5)] Forceful destruction successful, exit code 0 [2023-11-19 05:18:00,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 05:18:01,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-19 05:18:01,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 05:18:01,221 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:18:01,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:18:01,221 INFO L85 PathProgramCache]: Analyzing trace with hash 326167326, now seen corresponding path program 1 times [2023-11-19 05:18:01,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:18:01,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549544065] [2023-11-19 05:18:01,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:01,222 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 05:18:01,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:18:01,224 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 05:18:01,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/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 (8)] Waiting until timeout for monitored process [2023-11-19 05:18:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:18:01,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 05:18:01,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:18:03,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 616 proven. 132 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2023-11-19 05:18:03,737 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:18:11,575 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:18:11,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549544065] [2023-11-19 05:18:11,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549544065] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:18:11,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1029274592] [2023-11-19 05:18:11,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:11,576 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:18:11,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:18:11,577 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:18:11,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-19 05:18:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:18:12,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 05:18:12,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:18:21,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 598 proven. 126 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-11-19 05:18:21,213 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:18:30,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1029274592] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:18:30,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233659139] [2023-11-19 05:18:30,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:30,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:18:30,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:18:30,293 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:18:30,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d4b2c3-3b38-43be-af02-260b573e9d9c/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 05:18:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:18:30,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 05:18:30,466 INFO L285 TraceCheckSpWp]: Computing forward predicates...