./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-53.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_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-53.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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_02f8fd39-ee95-46c7-803a-958927088cf9/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 b16eba3e66fce8de8f1cc0839c845a3286d9ca06a9269b60c38e05d8e718bf4d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:20:59,162 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:20:59,252 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:20:59,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:20:59,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:20:59,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:20:59,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:20:59,284 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:20:59,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:20:59,286 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:20:59,286 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:20:59,287 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:20:59,287 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:20:59,288 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:20:59,289 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:20:59,289 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:20:59,290 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:20:59,290 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:20:59,291 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:20:59,291 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:20:59,292 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:20:59,294 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:20:59,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:20:59,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:20:59,296 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:20:59,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:20:59,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:20:59,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:20:59,298 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:20:59,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:20:59,299 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:20:59,300 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:20:59,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:20:59,300 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:20:59,300 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:20:59,301 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:20:59,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:20:59,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:20:59,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:20:59,302 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:20:59,302 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:20:59,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:20:59,302 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:20:59,303 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:20:59,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:20:59,303 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_02f8fd39-ee95-46c7-803a-958927088cf9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b16eba3e66fce8de8f1cc0839c845a3286d9ca06a9269b60c38e05d8e718bf4d [2023-11-19 05:20:59,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:20:59,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:20:59,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:20:59,579 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:20:59,579 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:20:59,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-53.i [2023-11-19 05:21:02,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:21:03,114 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:21:03,114 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-53.i [2023-11-19 05:21:03,128 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/data/783609aa5/9ce4b1712d114ceea02e24ec2c5b514a/FLAG3ab25ef4d [2023-11-19 05:21:03,150 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/data/783609aa5/9ce4b1712d114ceea02e24ec2c5b514a [2023-11-19 05:21:03,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:21:03,159 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:21:03,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:21:03,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:21:03,169 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:21:03,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:03" (1/1) ... [2023-11-19 05:21:03,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2618532f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:03, skipping insertion in model container [2023-11-19 05:21:03,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:03" (1/1) ... [2023-11-19 05:21:03,220 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:21:03,435 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_02f8fd39-ee95-46c7-803a-958927088cf9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-53.i[915,928] [2023-11-19 05:21:03,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:21:03,559 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:21:03,579 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_02f8fd39-ee95-46c7-803a-958927088cf9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-53.i[915,928] [2023-11-19 05:21:03,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:21:03,666 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:21:03,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:03 WrapperNode [2023-11-19 05:21:03,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:21:03,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:21:03,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:21:03,669 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:21:03,677 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:03" (1/1) ... [2023-11-19 05:21:03,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:03" (1/1) ... [2023-11-19 05:21:03,745 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 175 [2023-11-19 05:21:03,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:21:03,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:21:03,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:21:03,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:21:03,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:03" (1/1) ... [2023-11-19 05:21:03,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:03" (1/1) ... [2023-11-19 05:21:03,760 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:03" (1/1) ... [2023-11-19 05:21:03,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:03" (1/1) ... [2023-11-19 05:21:03,773 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:03" (1/1) ... [2023-11-19 05:21:03,777 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:03" (1/1) ... [2023-11-19 05:21:03,790 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:03" (1/1) ... [2023-11-19 05:21:03,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:03" (1/1) ... [2023-11-19 05:21:03,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:21:03,813 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:21:03,813 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:21:03,813 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:21:03,814 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:03" (1/1) ... [2023-11-19 05:21:03,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:21:03,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:21:03,854 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:21:03,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:21:03,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:21:03,899 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:21:03,900 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:21:03,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:21:03,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:21:03,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:21:04,054 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:21:04,058 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:21:04,622 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:21:05,056 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:21:05,057 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:21:05,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:21:05 BoogieIcfgContainer [2023-11-19 05:21:05,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:21:05,068 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:21:05,068 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:21:05,072 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:21:05,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:21:03" (1/3) ... [2023-11-19 05:21:05,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792a6254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:21:05, skipping insertion in model container [2023-11-19 05:21:05,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:03" (2/3) ... [2023-11-19 05:21:05,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792a6254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:21:05, skipping insertion in model container [2023-11-19 05:21:05,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:21:05" (3/3) ... [2023-11-19 05:21:05,078 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-53.i [2023-11-19 05:21:05,099 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:21:05,099 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:21:05,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:21:05,173 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;@2abc874a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:21:05,174 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:21:05,180 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 05:21:05,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 05:21:05,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:05,193 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:21:05,194 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:21:05,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:05,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1212341296, now seen corresponding path program 1 times [2023-11-19 05:21:05,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:21:05,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541474147] [2023-11-19 05:21:05,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:05,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:21:05,391 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:21:05,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870508418] [2023-11-19 05:21:05,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:05,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:21:05,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:21:05,397 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:21:05,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:21:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:21:05,926 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:21:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:21:06,233 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:21:06,236 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:21:06,237 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:21:06,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:21:06,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:21:06,451 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:21:06,455 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:21:06,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:21:06 BoogieIcfgContainer [2023-11-19 05:21:06,597 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:21:06,598 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:21:06,598 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:21:06,598 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:21:06,601 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:21:05" (3/4) ... [2023-11-19 05:21:06,603 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:21:06,604 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:21:06,605 INFO L158 Benchmark]: Toolchain (without parser) took 3446.19ms. Allocated memory is still 182.5MB. Free memory was 138.5MB in the beginning and 139.7MB in the end (delta: -1.2MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2023-11-19 05:21:06,606 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 134.2MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:21:06,607 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.53ms. Allocated memory is still 182.5MB. Free memory was 138.2MB in the beginning and 124.3MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 05:21:06,608 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.33ms. Allocated memory is still 182.5MB. Free memory was 124.3MB in the beginning and 121.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:21:06,612 INFO L158 Benchmark]: Boogie Preprocessor took 52.36ms. Allocated memory is still 182.5MB. Free memory was 121.0MB in the beginning and 118.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:21:06,613 INFO L158 Benchmark]: RCFGBuilder took 1250.80ms. Allocated memory is still 182.5MB. Free memory was 118.9MB in the beginning and 94.5MB in the end (delta: 24.5MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2023-11-19 05:21:06,613 INFO L158 Benchmark]: TraceAbstraction took 1529.56ms. Allocated memory is still 182.5MB. Free memory was 94.5MB in the beginning and 139.7MB in the end (delta: -45.2MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2023-11-19 05:21:06,614 INFO L158 Benchmark]: Witness Printer took 6.46ms. Allocated memory is still 182.5MB. Free memory is still 139.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:21:06,616 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 134.2MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.53ms. Allocated memory is still 182.5MB. Free memory was 138.2MB in the beginning and 124.3MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.33ms. Allocated memory is still 182.5MB. Free memory was 124.3MB in the beginning and 121.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.36ms. Allocated memory is still 182.5MB. Free memory was 121.0MB in the beginning and 118.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1250.80ms. Allocated memory is still 182.5MB. Free memory was 118.9MB in the beginning and 94.5MB in the end (delta: 24.5MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1529.56ms. Allocated memory is still 182.5MB. Free memory was 94.5MB in the beginning and 139.7MB in the end (delta: -45.2MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * Witness Printer took 6.46ms. Allocated memory is still 182.5MB. Free memory is still 139.7MB. 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 someBinaryFLOATComparisonOperation at line 61, overapproximation of shiftLeft at line 55, overapproximation of bitwiseAnd at line 75, overapproximation of someBinaryArithmeticFLOAToperation at line 61, overapproximation of someUnaryFLOAToperation at line 61. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_8 = 0; [L24] unsigned long int var_1_9 = 10; [L25] float var_1_10 = 99.5; [L26] float var_1_11 = 5.6; [L27] float var_1_12 = 255.5; [L28] float var_1_13 = 31.25; [L29] signed short int var_1_14 = 32; [L30] unsigned long int var_1_15 = 16; [L31] unsigned char var_1_16 = 1; [L32] unsigned char var_1_17 = 5; [L33] unsigned char var_1_18 = 50; [L34] unsigned char var_1_19 = 50; [L35] signed char var_1_20 = 1; [L36] signed char var_1_21 = -10; [L37] float var_1_22 = 0.5; [L38] signed char var_1_23 = 100; [L39] unsigned char last_1_var_1_1 = 0; [L40] unsigned long int last_1_var_1_9 = 10; [L41] signed short int last_1_var_1_14 = 32; [L42] unsigned char last_1_var_1_16 = 1; [L43] signed char last_1_var_1_20 = 1; [L129] isInitial = 1 [L130] FCALL initially() [L131] int k_loop; [L132] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=28/5, var_1_12=511/2, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=0, var_1_9=10] [L132] COND TRUE k_loop < 1 [L133] CALL updateLastVariables() [L118] last_1_var_1_1 = var_1_1 [L119] last_1_var_1_9 = var_1_9 [L120] last_1_var_1_14 = var_1_14 [L121] last_1_var_1_16 = var_1_16 [L122] last_1_var_1_20 = var_1_20 [L133] RET updateLastVariables() [L134] CALL updateVariables() [L90] var_1_8 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_8 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=28/5, var_1_12=511/2, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_8 >= 1) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=28/5, var_1_12=511/2, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L92] CALL assume_abort_if_not(var_1_8 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=28/5, var_1_12=511/2, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_8 <= 1) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=28/5, var_1_12=511/2, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L93] var_1_11 = __VERIFIER_nondet_float() [L94] CALL assume_abort_if_not((var_1_11 >= -461168.6018427382800e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=511/2, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not((var_1_11 >= -461168.6018427382800e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=511/2, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L95] var_1_12 = __VERIFIER_nondet_float() [L96] CALL assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L97] var_1_13 = __VERIFIER_nondet_float() [L98] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L99] var_1_15 = __VERIFIER_nondet_ulong() [L100] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L101] CALL assume_abort_if_not(var_1_15 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_15 <= 4294967295) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L102] CALL assume_abort_if_not(var_1_15 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_15 != 0) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L103] var_1_17 = __VERIFIER_nondet_uchar() [L104] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L105] CALL assume_abort_if_not(var_1_17 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_17 <= 255) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L106] CALL assume_abort_if_not(var_1_17 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_17 != 0) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L107] var_1_18 = __VERIFIER_nondet_uchar() [L108] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=0, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=0, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L109] CALL assume_abort_if_not(var_1_18 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=0, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_18 <= 254) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=0, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L110] var_1_19 = __VERIFIER_nondet_uchar() [L111] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L112] CALL assume_abort_if_not(var_1_19 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_19 <= 254) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L113] var_1_21 = __VERIFIER_nondet_char() [L114] CALL assume_abort_if_not(var_1_21 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=1, var_1_21=0, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_21 >= -127) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=1, var_1_21=0, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L115] CALL assume_abort_if_not(var_1_21 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=1, var_1_21=0, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_21 <= 126) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=32, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=1, var_1_21=0, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L134] RET updateVariables() [L135] CALL step() [L47] unsigned char stepLocal_1 = last_1_var_1_14 > (last_1_var_1_16 - last_1_var_1_16); [L48] signed long int stepLocal_0 = last_1_var_1_20 * last_1_var_1_20; [L49] COND FALSE !(stepLocal_0 == last_1_var_1_14) [L54] unsigned long int stepLocal_6 = ((((var_1_15) > (last_1_var_1_9)) ? (var_1_15) : (last_1_var_1_9))) / var_1_17; [L55] EXPR 256u << last_1_var_1_16 [L55] COND FALSE !(stepLocal_6 <= (256u << last_1_var_1_16)) [L58] unsigned char stepLocal_5 = var_1_16 != var_1_16; [L59] unsigned char stepLocal_4 = var_1_8; [L60] COND TRUE (! var_1_1) || stepLocal_4 [L61] var_1_10 = (((((var_1_11 + var_1_12)) < (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))))) ? ((var_1_11 + var_1_12)) : (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13)))))) [L69] var_1_20 = var_1_21 [L70] var_1_22 = var_1_12 [L71] var_1_23 = var_1_21 [L72] COND FALSE !(\read(var_1_1)) [L75] EXPR (var_1_16 / var_1_15) & var_1_16 [L75] COND TRUE ((var_1_16 / var_1_15) & var_1_16) >= var_1_20 [L76] var_1_14 = var_1_16 [L81] unsigned char stepLocal_3 = var_1_20 != var_1_14; [L82] signed long int stepLocal_2 = (((var_1_16) < (0)) ? (var_1_16) : (0)); [L83] COND TRUE (var_1_1 || (var_1_16 <= var_1_14)) || stepLocal_3 [L84] COND FALSE !(stepLocal_2 <= (-5 + var_1_16)) [L135] RET step() [L136] CALL, EXPR property() [L125] EXPR (((((last_1_var_1_20 * last_1_var_1_20) == last_1_var_1_14) ? (((last_1_var_1_14 > (last_1_var_1_16 - last_1_var_1_16)) && last_1_var_1_1) ? (var_1_1 == ((unsigned char) var_1_8)) : 1) : 1) && (((var_1_1 || (var_1_16 <= var_1_14)) || (var_1_20 != var_1_14)) ? ((((((var_1_16) < (0)) ? (var_1_16) : (0))) <= (-5 + var_1_16)) ? (var_1_9 == ((unsigned long int) var_1_16)) : 1) : 1)) && (((! var_1_1) || var_1_8) ? (var_1_10 == ((float) (((((var_1_11 + var_1_12)) < (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))))) ? ((var_1_11 + var_1_12)) : (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13)))))))) : (((var_1_11 < var_1_12) || (var_1_16 != var_1_16)) ? (var_1_10 == ((float) var_1_13)) : (var_1_10 == ((float) var_1_12))))) && (var_1_1 ? (var_1_14 == ((signed short int) ((((var_1_23) > (var_1_16)) ? (var_1_23) : (var_1_16))))) : ((((var_1_16 / var_1_15) & var_1_16) >= var_1_20) ? (var_1_14 == ((signed short int) var_1_16)) : (var_1_14 == ((signed short int) -128)))) [L125] EXPR ((((((last_1_var_1_20 * last_1_var_1_20) == last_1_var_1_14) ? (((last_1_var_1_14 > (last_1_var_1_16 - last_1_var_1_16)) && last_1_var_1_1) ? (var_1_1 == ((unsigned char) var_1_8)) : 1) : 1) && (((var_1_1 || (var_1_16 <= var_1_14)) || (var_1_20 != var_1_14)) ? ((((((var_1_16) < (0)) ? (var_1_16) : (0))) <= (-5 + var_1_16)) ? (var_1_9 == ((unsigned long int) var_1_16)) : 1) : 1)) && (((! var_1_1) || var_1_8) ? (var_1_10 == ((float) (((((var_1_11 + var_1_12)) < (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))))) ? ((var_1_11 + var_1_12)) : (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13)))))))) : (((var_1_11 < var_1_12) || (var_1_16 != var_1_16)) ? (var_1_10 == ((float) var_1_13)) : (var_1_10 == ((float) var_1_12))))) && (var_1_1 ? (var_1_14 == ((signed short int) ((((var_1_23) > (var_1_16)) ? (var_1_23) : (var_1_16))))) : ((((var_1_16 / var_1_15) & var_1_16) >= var_1_20) ? (var_1_14 == ((signed short int) var_1_16)) : (var_1_14 == ((signed short int) -128))))) && (((((((var_1_15) > (last_1_var_1_9)) ? (var_1_15) : (last_1_var_1_9))) / var_1_17) <= (256u << last_1_var_1_16)) ? (var_1_16 == ((unsigned char) ((((var_1_18) > (var_1_19)) ? (var_1_18) : (var_1_19))))) : 1) [L125-L126] return (((((((((last_1_var_1_20 * last_1_var_1_20) == last_1_var_1_14) ? (((last_1_var_1_14 > (last_1_var_1_16 - last_1_var_1_16)) && last_1_var_1_1) ? (var_1_1 == ((unsigned char) var_1_8)) : 1) : 1) && (((var_1_1 || (var_1_16 <= var_1_14)) || (var_1_20 != var_1_14)) ? ((((((var_1_16) < (0)) ? (var_1_16) : (0))) <= (-5 + var_1_16)) ? (var_1_9 == ((unsigned long int) var_1_16)) : 1) : 1)) && (((! var_1_1) || var_1_8) ? (var_1_10 == ((float) (((((var_1_11 + var_1_12)) < (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))))) ? ((var_1_11 + var_1_12)) : (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13)))))))) : (((var_1_11 < var_1_12) || (var_1_16 != var_1_16)) ? (var_1_10 == ((float) var_1_13)) : (var_1_10 == ((float) var_1_12))))) && (var_1_1 ? (var_1_14 == ((signed short int) ((((var_1_23) > (var_1_16)) ? (var_1_23) : (var_1_16))))) : ((((var_1_16 / var_1_15) & var_1_16) >= var_1_20) ? (var_1_14 == ((signed short int) var_1_16)) : (var_1_14 == ((signed short int) -128))))) && (((((((var_1_15) > (last_1_var_1_9)) ? (var_1_15) : (last_1_var_1_9))) / var_1_17) <= (256u << last_1_var_1_16)) ? (var_1_16 == ((unsigned char) ((((var_1_18) > (var_1_19)) ? (var_1_18) : (var_1_19))))) : 1)) && (var_1_20 == ((signed char) var_1_21))) && (var_1_22 == ((float) var_1_12))) && (var_1_23 == ((signed char) var_1_21)) ; [L136] RET, EXPR property() [L136] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=5, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=1, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=3, var_1_23=0, var_1_8=1, var_1_9=10] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=5, var_1_11=2, var_1_12=3, var_1_13=4, var_1_14=1, var_1_15=516, var_1_16=1, var_1_17=2, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=3, var_1_23=0, var_1_8=1, var_1_9=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 17, 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=35occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 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 05:21:06,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-53.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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_02f8fd39-ee95-46c7-803a-958927088cf9/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 b16eba3e66fce8de8f1cc0839c845a3286d9ca06a9269b60c38e05d8e718bf4d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:21:09,320 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:21:09,458 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:21:09,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:21:09,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:21:09,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:21:09,516 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:21:09,516 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:21:09,518 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:21:09,523 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:21:09,523 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:21:09,524 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:21:09,524 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:21:09,526 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:21:09,527 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:21:09,527 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:21:09,529 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:21:09,529 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:21:09,530 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:21:09,531 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:21:09,531 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:21:09,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:21:09,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:21:09,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:21:09,534 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:21:09,534 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:21:09,535 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:21:09,535 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:21:09,536 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:21:09,536 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:21:09,538 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:21:09,538 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:21:09,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:21:09,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:21:09,539 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:21:09,540 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:21:09,540 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:21:09,540 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:21:09,541 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:21:09,542 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:21:09,542 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:21:09,543 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:21:09,543 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_02f8fd39-ee95-46c7-803a-958927088cf9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b16eba3e66fce8de8f1cc0839c845a3286d9ca06a9269b60c38e05d8e718bf4d [2023-11-19 05:21:09,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:21:09,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:21:09,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:21:10,000 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:21:10,001 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:21:10,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-53.i [2023-11-19 05:21:13,155 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:21:13,477 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:21:13,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-53.i [2023-11-19 05:21:13,493 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/data/8c224ff0d/ae2a9b94a45a4000a81c74cb5e83f441/FLAG88c4bf218 [2023-11-19 05:21:13,511 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/data/8c224ff0d/ae2a9b94a45a4000a81c74cb5e83f441 [2023-11-19 05:21:13,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:21:13,519 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:21:13,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:21:13,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:21:13,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:21:13,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:13" (1/1) ... [2023-11-19 05:21:13,530 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77540832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:13, skipping insertion in model container [2023-11-19 05:21:13,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:13" (1/1) ... [2023-11-19 05:21:13,578 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:21:13,775 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_02f8fd39-ee95-46c7-803a-958927088cf9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-53.i[915,928] [2023-11-19 05:21:13,872 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:21:13,892 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:21:13,909 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_02f8fd39-ee95-46c7-803a-958927088cf9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-53.i[915,928] [2023-11-19 05:21:13,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:21:13,996 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:21:13,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:13 WrapperNode [2023-11-19 05:21:13,997 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:21:13,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:21:13,999 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:21:13,999 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:21:14,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:13" (1/1) ... [2023-11-19 05:21:14,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:13" (1/1) ... [2023-11-19 05:21:14,067 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 138 [2023-11-19 05:21:14,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:21:14,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:21:14,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:21:14,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:21:14,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:13" (1/1) ... [2023-11-19 05:21:14,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:13" (1/1) ... [2023-11-19 05:21:14,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:13" (1/1) ... [2023-11-19 05:21:14,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:13" (1/1) ... [2023-11-19 05:21:14,095 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:13" (1/1) ... [2023-11-19 05:21:14,099 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:13" (1/1) ... [2023-11-19 05:21:14,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:13" (1/1) ... [2023-11-19 05:21:14,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:13" (1/1) ... [2023-11-19 05:21:14,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:21:14,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:21:14,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:21:14,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:21:14,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:13" (1/1) ... [2023-11-19 05:21:14,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:21:14,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:21:14,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:21:14,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:21:14,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:21:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:21:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:21:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:21:14,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:21:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:21:14,297 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:21:14,300 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:21:15,272 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:21:15,292 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:21:15,292 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:21:15,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:21:15 BoogieIcfgContainer [2023-11-19 05:21:15,299 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:21:15,303 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:21:15,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:21:15,307 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:21:15,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:21:13" (1/3) ... [2023-11-19 05:21:15,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aff8fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:21:15, skipping insertion in model container [2023-11-19 05:21:15,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:13" (2/3) ... [2023-11-19 05:21:15,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aff8fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:21:15, skipping insertion in model container [2023-11-19 05:21:15,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:21:15" (3/3) ... [2023-11-19 05:21:15,313 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-53.i [2023-11-19 05:21:15,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:21:15,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:21:15,426 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:21:15,434 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;@4332f063, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:21:15,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:21:15,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 39 states have (on average 1.358974358974359) internal successors, (53), 40 states have internal predecessors, (53), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 05:21:15,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-19 05:21:15,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:15,467 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:21:15,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:21:15,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:15,481 INFO L85 PathProgramCache]: Analyzing trace with hash -65020561, now seen corresponding path program 1 times [2023-11-19 05:21:15,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:21:15,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796433893] [2023-11-19 05:21:15,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:15,503 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 05:21:15,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:21:15,509 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:15,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:15,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:21:15,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:21:16,039 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2023-11-19 05:21:16,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:21:16,040 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:21:16,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796433893] [2023-11-19 05:21:16,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796433893] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:16,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:16,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:21:16,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718904745] [2023-11-19 05:21:16,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:16,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:21:16,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:21:16,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:21:16,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:21:16,103 INFO L87 Difference]: Start difference. First operand has 59 states, 39 states have (on average 1.358974358974359) internal successors, (53), 40 states have internal predecessors, (53), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 05:21:16,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:16,168 INFO L93 Difference]: Finished difference Result 115 states and 188 transitions. [2023-11-19 05:21:16,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:21:16,171 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 112 [2023-11-19 05:21:16,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:16,182 INFO L225 Difference]: With dead ends: 115 [2023-11-19 05:21:16,183 INFO L226 Difference]: Without dead ends: 55 [2023-11-19 05:21:16,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 111 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 05:21:16,195 INFO L413 NwaCegarLoop]: 84 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, 84 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 05:21:16,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:21:16,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-19 05:21:16,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-19 05:21:16,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 36 states have internal predecessors, (46), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 05:21:16,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2023-11-19 05:21:16,277 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 112 [2023-11-19 05:21:16,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:16,278 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2023-11-19 05:21:16,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 05:21:16,279 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2023-11-19 05:21:16,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-19 05:21:16,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:16,285 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:21:16,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:16,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:16,501 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:21:16,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:16,503 INFO L85 PathProgramCache]: Analyzing trace with hash 978707877, now seen corresponding path program 1 times [2023-11-19 05:21:16,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:21:16,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292580229] [2023-11-19 05:21:16,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:16,506 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 05:21:16,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:21:16,508 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:16,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:16,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:21:16,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:21:16,945 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-19 05:21:16,948 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:21:16,949 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:21:16,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292580229] [2023-11-19 05:21:16,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292580229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:16,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:16,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:21:16,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851581113] [2023-11-19 05:21:16,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:16,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:21:16,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:21:16,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:21:16,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:21:16,962 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 05:21:17,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:17,612 INFO L93 Difference]: Finished difference Result 157 states and 230 transitions. [2023-11-19 05:21:17,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:21:17,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 112 [2023-11-19 05:21:17,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:17,618 INFO L225 Difference]: With dead ends: 157 [2023-11-19 05:21:17,618 INFO L226 Difference]: Without dead ends: 105 [2023-11-19 05:21:17,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 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 05:21:17,621 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 69 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:17,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 202 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 05:21:17,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-19 05:21:17,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2023-11-19 05:21:17,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 66 states have (on average 1.2424242424242424) internal successors, (82), 66 states have internal predecessors, (82), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 05:21:17,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 150 transitions. [2023-11-19 05:21:17,656 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 150 transitions. Word has length 112 [2023-11-19 05:21:17,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:17,657 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 150 transitions. [2023-11-19 05:21:17,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 05:21:17,658 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 150 transitions. [2023-11-19 05:21:17,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 05:21:17,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:17,661 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:21:17,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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)] Ended with exit code 0 [2023-11-19 05:21:17,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:17,871 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:21:17,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:17,872 INFO L85 PathProgramCache]: Analyzing trace with hash 39612838, now seen corresponding path program 1 times [2023-11-19 05:21:17,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:21:17,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495761757] [2023-11-19 05:21:17,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:17,873 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 05:21:17,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:21:17,875 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:17,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:18,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:21:18,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:21:18,742 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-19 05:21:18,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:21:18,742 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:21:18,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495761757] [2023-11-19 05:21:18,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495761757] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:18,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:18,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:21:18,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636432751] [2023-11-19 05:21:18,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:18,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:21:18,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:21:18,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:21:18,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:21:18,746 INFO L87 Difference]: Start difference. First operand 103 states and 150 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 05:21:19,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:19,244 INFO L93 Difference]: Finished difference Result 211 states and 307 transitions. [2023-11-19 05:21:19,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:21:19,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 113 [2023-11-19 05:21:19,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:19,248 INFO L225 Difference]: With dead ends: 211 [2023-11-19 05:21:19,248 INFO L226 Difference]: Without dead ends: 111 [2023-11-19 05:21:19,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 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 05:21:19,252 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 18 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:19,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 140 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 05:21:19,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-19 05:21:19,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2023-11-19 05:21:19,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 72 states have internal predecessors, (89), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 05:21:19,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2023-11-19 05:21:19,284 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 113 [2023-11-19 05:21:19,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:19,286 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2023-11-19 05:21:19,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 05:21:19,286 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2023-11-19 05:21:19,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 05:21:19,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:19,290 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:21:19,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:21:19,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:19,500 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:21:19,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:19,502 INFO L85 PathProgramCache]: Analyzing trace with hash -106051064, now seen corresponding path program 1 times [2023-11-19 05:21:19,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:21:19,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95398655] [2023-11-19 05:21:19,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:19,504 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 05:21:19,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:21:19,505 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:19,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:19,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:21:19,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:21:19,915 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-19 05:21:19,916 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:21:19,916 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:21:19,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95398655] [2023-11-19 05:21:19,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95398655] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:19,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:19,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:21:19,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530865340] [2023-11-19 05:21:19,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:19,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:21:19,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:21:19,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:21:19,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:21:19,934 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 05:21:20,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:20,726 INFO L93 Difference]: Finished difference Result 275 states and 397 transitions. [2023-11-19 05:21:20,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:21:20,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 113 [2023-11-19 05:21:20,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:20,731 INFO L225 Difference]: With dead ends: 275 [2023-11-19 05:21:20,731 INFO L226 Difference]: Without dead ends: 169 [2023-11-19 05:21:20,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 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 05:21:20,735 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 71 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:20,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 211 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 05:21:20,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-11-19 05:21:20,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 111. [2023-11-19 05:21:20,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 74 states have internal predecessors, (91), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 05:21:20,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2023-11-19 05:21:20,776 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 113 [2023-11-19 05:21:20,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:20,777 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2023-11-19 05:21:20,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 05:21:20,778 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2023-11-19 05:21:20,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 05:21:20,780 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:20,781 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:21:20,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:21,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:21,002 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:21:21,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:21,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1668956298, now seen corresponding path program 1 times [2023-11-19 05:21:21,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:21:21,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891297348] [2023-11-19 05:21:21,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:21,005 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 05:21:21,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:21:21,007 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:21,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 (6)] Waiting until timeout for monitored process [2023-11-19 05:21:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:21,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 05:21:21,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:21:21,684 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 05:21:21,685 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:21:22,093 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-11-19 05:21:22,094 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:21:22,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891297348] [2023-11-19 05:21:22,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891297348] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:21:22,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1300190484] [2023-11-19 05:21:22,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:22,095 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:21:22,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:21:22,106 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:21:22,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 05:21:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:23,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 05:21:23,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:21:23,175 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 05:21:23,175 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:21:23,420 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-11-19 05:21:23,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1300190484] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:21:23,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016834583] [2023-11-19 05:21:23,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:23,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:21:23,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:21:23,431 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:21:23,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 05:21:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:23,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 05:21:23,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:21:23,809 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 05:21:23,810 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:21:24,058 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-11-19 05:21:24,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016834583] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:21:24,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-19 05:21:24,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 12 [2023-11-19 05:21:24,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203111292] [2023-11-19 05:21:24,061 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-19 05:21:24,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 05:21:24,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:21:24,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 05:21:24,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:21:24,065 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 05:21:26,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:26,779 INFO L93 Difference]: Finished difference Result 347 states and 486 transitions. [2023-11-19 05:21:26,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-19 05:21:26,780 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 113 [2023-11-19 05:21:26,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:26,784 INFO L225 Difference]: With dead ends: 347 [2023-11-19 05:21:26,784 INFO L226 Difference]: Without dead ends: 239 [2023-11-19 05:21:26,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 662 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2023-11-19 05:21:26,787 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 277 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:26,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 404 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-19 05:21:26,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-11-19 05:21:26,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 117. [2023-11-19 05:21:26,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 78 states have (on average 1.205128205128205) internal successors, (94), 78 states have internal predecessors, (94), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 05:21:26,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 162 transitions. [2023-11-19 05:21:26,833 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 162 transitions. Word has length 113 [2023-11-19 05:21:26,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:26,834 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 162 transitions. [2023-11-19 05:21:26,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 05:21:26,835 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 162 transitions. [2023-11-19 05:21:26,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-19 05:21:26,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:26,838 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:21:26,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-19 05:21:27,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 05:21:27,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 (6)] Forceful destruction successful, exit code 0 [2023-11-19 05:21:27,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:27,445 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:21:27,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:27,446 INFO L85 PathProgramCache]: Analyzing trace with hash 771824035, now seen corresponding path program 1 times [2023-11-19 05:21:27,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:21:27,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279141470] [2023-11-19 05:21:27,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:27,447 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 05:21:27,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:21:27,448 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 05:21:27,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f8fd39-ee95-46c7-803a-958927088cf9/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 (9)] Waiting until timeout for monitored process [2023-11-19 05:21:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:27,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 05:21:27,740 INFO L285 TraceCheckSpWp]: Computing forward predicates...