./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX --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 da2ee77b35405689fc5c65c91bc7d87d5288020b288dd575aada93fb6bdf0f20 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:55:53,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:55:53,523 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:55:53,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:55:53,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:55:53,558 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:55:53,559 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:55:53,559 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:55:53,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:55:53,561 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:55:53,561 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:55:53,562 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:55:53,562 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:55:53,563 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:55:53,563 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:55:53,564 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:55:53,565 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:55:53,565 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:55:53,566 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:55:53,566 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:55:53,567 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:55:53,568 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:55:53,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:55:53,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:55:53,569 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:55:53,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:55:53,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:55:53,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:55:53,571 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:55:53,572 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:55:53,572 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:55:53,573 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:55:53,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:55:53,573 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:55:53,574 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:55:53,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:55:53,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:53,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:55:53,576 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:55:53,576 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:55:53,577 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:55:53,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:55:53,578 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:55:53,578 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:55:53,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:55:53,579 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_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da2ee77b35405689fc5c65c91bc7d87d5288020b288dd575aada93fb6bdf0f20 [2023-11-12 00:55:53,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:55:53,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:55:53,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:55:53,936 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:55:53,937 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:55:53,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i [2023-11-12 00:55:57,163 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:55:57,498 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:55:57,499 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i [2023-11-12 00:55:57,508 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/data/58c07eced/59c1bc3e8bc543f48dc17c558634436c/FLAGebda39b24 [2023-11-12 00:55:57,816 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/data/58c07eced/59c1bc3e8bc543f48dc17c558634436c [2023-11-12 00:55:57,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:55:57,838 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:55:57,856 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:57,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:55:57,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:55:57,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:57" (1/1) ... [2023-11-12 00:55:57,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756adff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:57, skipping insertion in model container [2023-11-12 00:55:57,877 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:57" (1/1) ... [2023-11-12 00:55:57,926 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:55:58,087 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_522a607b-7390-41cc-8bd6-3b0843ec4a35/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i[913,926] [2023-11-12 00:55:58,126 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:58,139 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:55:58,153 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_522a607b-7390-41cc-8bd6-3b0843ec4a35/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i[913,926] [2023-11-12 00:55:58,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:58,202 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:55:58,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58 WrapperNode [2023-11-12 00:55:58,203 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:58,204 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:58,204 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:55:58,204 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:55:58,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,258 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2023-11-12 00:55:58,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:58,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:55:58,259 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:55:58,259 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:55:58,269 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,282 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,285 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,290 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,294 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:55:58,295 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:55:58,296 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:55:58,296 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:55:58,297 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (1/1) ... [2023-11-12 00:55:58,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:58,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:58,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:55:58,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:55:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:55:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:55:58,379 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:55:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:55:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:55:58,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:55:58,466 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:55:58,468 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:55:58,808 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:55:59,189 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:55:59,189 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:55:59,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:59 BoogieIcfgContainer [2023-11-12 00:55:59,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:55:59,196 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:55:59,197 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:55:59,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:55:59,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:55:57" (1/3) ... [2023-11-12 00:55:59,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5afe5a8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:59, skipping insertion in model container [2023-11-12 00:55:59,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:58" (2/3) ... [2023-11-12 00:55:59,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5afe5a8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:59, skipping insertion in model container [2023-11-12 00:55:59,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:59" (3/3) ... [2023-11-12 00:55:59,207 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-92.i [2023-11-12 00:55:59,228 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:55:59,228 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:55:59,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:55:59,301 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;@7d97911a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:55:59,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:55:59,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 00:55:59,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-12 00:55:59,316 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:59,317 INFO L195 NwaCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:55:59,317 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:59,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:59,322 INFO L85 PathProgramCache]: Analyzing trace with hash -2110596270, now seen corresponding path program 1 times [2023-11-12 00:55:59,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:59,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920107977] [2023-11-12 00:55:59,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:59,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:59,545 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:55:59,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [949593090] [2023-11-12 00:55:59,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:59,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:55:59,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:59,552 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:55:59,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:55:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:55:59,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:55:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:56:00,056 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:56:00,058 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:56:00,060 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:56:00,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:00,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:56:00,273 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:56:00,277 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:56:00,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:56:00 BoogieIcfgContainer [2023-11-12 00:56:00,358 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:56:00,366 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:56:00,366 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:56:00,366 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:56:00,367 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:59" (3/4) ... [2023-11-12 00:56:00,369 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:56:00,370 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:56:00,371 INFO L158 Benchmark]: Toolchain (without parser) took 2533.05ms. Allocated memory is still 134.2MB. Free memory was 102.2MB in the beginning and 61.5MB in the end (delta: 40.8MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2023-11-12 00:56:00,372 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory was 106.8MB in the beginning and 106.6MB in the end (delta: 201.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:56:00,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.23ms. Allocated memory is still 134.2MB. Free memory was 102.2MB in the beginning and 89.8MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:56:00,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.30ms. Allocated memory is still 134.2MB. Free memory was 89.8MB in the beginning and 87.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:56:00,374 INFO L158 Benchmark]: Boogie Preprocessor took 35.63ms. Allocated memory is still 134.2MB. Free memory was 87.4MB in the beginning and 85.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:56:00,375 INFO L158 Benchmark]: RCFGBuilder took 897.57ms. Allocated memory is still 134.2MB. Free memory was 85.7MB in the beginning and 97.7MB in the end (delta: -12.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-12 00:56:00,375 INFO L158 Benchmark]: TraceAbstraction took 1168.42ms. Allocated memory is still 134.2MB. Free memory was 97.1MB in the beginning and 62.1MB in the end (delta: 35.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-12 00:56:00,376 INFO L158 Benchmark]: Witness Printer took 4.60ms. Allocated memory is still 134.2MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:56:00,380 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory was 106.8MB in the beginning and 106.6MB in the end (delta: 201.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.23ms. Allocated memory is still 134.2MB. Free memory was 102.2MB in the beginning and 89.8MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.30ms. Allocated memory is still 134.2MB. Free memory was 89.8MB in the beginning and 87.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.63ms. Allocated memory is still 134.2MB. Free memory was 87.4MB in the beginning and 85.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 897.57ms. Allocated memory is still 134.2MB. Free memory was 85.7MB in the beginning and 97.7MB in the end (delta: -12.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1168.42ms. Allocated memory is still 134.2MB. Free memory was 97.1MB in the beginning and 62.1MB in the end (delta: 35.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.60ms. Allocated memory is still 134.2MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 94, overapproximation of someBinaryFLOATComparisonOperation at line 94, overapproximation of bitwiseAnd at line 42. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] signed char var_1_2 = 2; [L24] signed char var_1_3 = 8; [L25] signed char var_1_4 = 0; [L26] signed char var_1_5 = 32; [L27] signed char var_1_6 = 10; [L28] double var_1_7 = 1000000.625; [L29] double var_1_8 = 16.65; [L30] double var_1_9 = 15.5; [L31] signed short int var_1_10 = 500; [L32] unsigned short int var_1_11 = 8; [L33] unsigned char var_1_13 = 0; [L34] unsigned short int var_1_14 = 100; [L35] unsigned char var_1_15 = 0; [L36] unsigned char var_1_16 = 0; [L37] float var_1_17 = 2.4; [L98] isInitial = 1 [L99] FCALL initially() [L100] COND TRUE 1 [L101] FCALL updateLastVariables() [L102] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_char() [L62] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L63] CALL assume_abort_if_not(var_1_2 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_2 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L64] var_1_3 = __VERIFIER_nondet_char() [L65] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L66] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L67] var_1_4 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L69] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L70] var_1_5 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L72] CALL assume_abort_if_not(var_1_5 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_5 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L73] var_1_6 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L75] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L76] var_1_8 = __VERIFIER_nondet_double() [L77] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=31/2] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=31/2] [L78] var_1_9 = __VERIFIER_nondet_double() [L79] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L80] var_1_14 = __VERIFIER_nondet_ushort() [L81] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L82] CALL assume_abort_if_not(var_1_14 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_14 <= 65535) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L83] CALL assume_abort_if_not(var_1_14 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_14 != 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L84] var_1_15 = __VERIFIER_nondet_uchar() [L85] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L86] CALL assume_abort_if_not(var_1_15 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_15 <= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L87] var_1_16 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L89] CALL assume_abort_if_not(var_1_16 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_16 <= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=8000005/8, var_1_8=2, var_1_9=3] [L102] RET updateVariables() [L103] CALL step() [L41] var_1_1 = ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))) [L42] EXPR var_1_6 & var_1_3 [L42] signed long int stepLocal_0 = (~ var_1_5) * (var_1_6 & var_1_3); [L43] COND TRUE stepLocal_0 >= var_1_4 [L44] var_1_7 = var_1_8 [L48] var_1_10 = ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))) [L49] signed long int stepLocal_1 = var_1_6 / var_1_14; [L50] COND FALSE !(stepLocal_1 < -100) [L53] var_1_13 = (var_1_15 && var_1_16) [L55] var_1_17 = var_1_8 [L56] COND TRUE ! var_1_13 [L57] var_1_11 = (var_1_5 + (((((var_1_6) > (1)) ? (var_1_6) : (1))) + 64)) [L103] RET step() [L104] CALL, EXPR property() [L94] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : (var_1_7 == ((double) var_1_9))) [L94] EXPR var_1_6 & var_1_3 [L94] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : (var_1_7 == ((double) var_1_9))) [L94-L95] return (((((var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : (var_1_7 == ((double) var_1_9)))) && (var_1_10 == ((signed short int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2)))))) && ((! var_1_13) ? (var_1_11 == ((unsigned short int) (var_1_5 + (((((var_1_6) > (1)) ? (var_1_6) : (1))) + 64)))) : 1)) && (((var_1_6 / var_1_14) < -100) ? (var_1_13 == ((unsigned char) (! (! (! var_1_15))))) : (var_1_13 == ((unsigned char) (var_1_15 && var_1_16))))) && (var_1_17 == ((float) var_1_8)) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=69, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=1, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=2, var_1_8=2, var_1_9=3] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=69, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=1, var_1_2=0, var_1_3=6, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=2, var_1_8=2, var_1_9=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 19, 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=38occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 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 [2023-11-12 00:56:00,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX --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 da2ee77b35405689fc5c65c91bc7d87d5288020b288dd575aada93fb6bdf0f20 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:56:03,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:56:03,366 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:56:03,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:56:03,376 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:56:03,428 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:56:03,429 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:56:03,429 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:56:03,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:56:03,436 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:56:03,437 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:56:03,438 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:56:03,438 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:56:03,440 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:56:03,441 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:56:03,441 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:56:03,443 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:56:03,443 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:56:03,444 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:56:03,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:56:03,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:56:03,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:56:03,446 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:56:03,446 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:56:03,447 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:56:03,447 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:56:03,448 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:56:03,448 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:56:03,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:56:03,449 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:56:03,451 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:56:03,451 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:56:03,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:56:03,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:03,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:56:03,453 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:56:03,453 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:56:03,454 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:56:03,454 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:56:03,455 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:56:03,455 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:56:03,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:56:03,456 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_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da2ee77b35405689fc5c65c91bc7d87d5288020b288dd575aada93fb6bdf0f20 [2023-11-12 00:56:03,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:56:03,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:56:03,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:56:03,991 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:56:03,992 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:56:03,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i [2023-11-12 00:56:07,218 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:56:07,536 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:56:07,537 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i [2023-11-12 00:56:07,553 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/data/ff9dc0acb/7d1ad7fa1dee48bebe6ea69a0b807c99/FLAGc0172422d [2023-11-12 00:56:07,573 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/data/ff9dc0acb/7d1ad7fa1dee48bebe6ea69a0b807c99 [2023-11-12 00:56:07,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:56:07,583 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:56:07,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:07,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:56:07,593 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:56:07,594 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:07" (1/1) ... [2023-11-12 00:56:07,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6247094d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:07, skipping insertion in model container [2023-11-12 00:56:07,595 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:07" (1/1) ... [2023-11-12 00:56:07,642 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:56:07,838 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_522a607b-7390-41cc-8bd6-3b0843ec4a35/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i[913,926] [2023-11-12 00:56:07,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:07,948 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:56:07,967 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_522a607b-7390-41cc-8bd6-3b0843ec4a35/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i[913,926] [2023-11-12 00:56:08,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:08,035 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:56:08,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:08 WrapperNode [2023-11-12 00:56:08,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:08,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:08,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:56:08,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:56:08,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:08" (1/1) ... [2023-11-12 00:56:08,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:08" (1/1) ... [2023-11-12 00:56:08,126 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2023-11-12 00:56:08,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:08,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:56:08,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:56:08,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:56:08,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:08" (1/1) ... [2023-11-12 00:56:08,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:08" (1/1) ... [2023-11-12 00:56:08,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:08" (1/1) ... [2023-11-12 00:56:08,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:08" (1/1) ... [2023-11-12 00:56:08,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:08" (1/1) ... [2023-11-12 00:56:08,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:08" (1/1) ... [2023-11-12 00:56:08,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:08" (1/1) ... [2023-11-12 00:56:08,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:08" (1/1) ... [2023-11-12 00:56:08,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:56:08,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:56:08,207 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:56:08,207 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:56:08,208 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:08" (1/1) ... [2023-11-12 00:56:08,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:08,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:08,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:56:08,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:56:08,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:56:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:56:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:56:08,321 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:56:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:56:08,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:56:08,442 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:56:08,445 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:56:09,258 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:56:09,266 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:56:09,268 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:56:09,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:09 BoogieIcfgContainer [2023-11-12 00:56:09,271 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:56:09,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:56:09,275 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:56:09,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:56:09,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:56:07" (1/3) ... [2023-11-12 00:56:09,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e7bf97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:09, skipping insertion in model container [2023-11-12 00:56:09,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:08" (2/3) ... [2023-11-12 00:56:09,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e7bf97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:09, skipping insertion in model container [2023-11-12 00:56:09,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:09" (3/3) ... [2023-11-12 00:56:09,282 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-92.i [2023-11-12 00:56:09,302 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:56:09,302 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:56:09,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:56:09,374 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;@f5270f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:56:09,375 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:56:09,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 00:56:09,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-12 00:56:09,402 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:09,403 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:09,405 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:56:09,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:09,414 INFO L85 PathProgramCache]: Analyzing trace with hash -769796365, now seen corresponding path program 1 times [2023-11-12 00:56:09,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:56:09,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601822686] [2023-11-12 00:56:09,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:09,431 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 [2023-11-12 00:56:09,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:56:09,437 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:56:09,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:56:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:09,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:56:09,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:09,837 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-12 00:56:09,837 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:56:09,838 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:56:09,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601822686] [2023-11-12 00:56:09,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601822686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:09,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:09,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:56:09,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857983075] [2023-11-12 00:56:09,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:09,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:56:09,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:56:09,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:56:09,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:56:09,895 INFO L87 Difference]: Start difference. First operand has 53 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-12 00:56:09,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:09,925 INFO L93 Difference]: Finished difference Result 99 states and 167 transitions. [2023-11-12 00:56:09,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:56:09,928 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 119 [2023-11-12 00:56:09,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:09,936 INFO L225 Difference]: With dead ends: 99 [2023-11-12 00:56:09,937 INFO L226 Difference]: Without dead ends: 49 [2023-11-12 00:56:09,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:56:09,945 INFO L413 NwaCegarLoop]: 70 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, 70 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 [2023-11-12 00:56:09,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:56:09,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-12 00:56:09,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-12 00:56:09,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 00:56:09,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions. [2023-11-12 00:56:09,998 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 70 transitions. Word has length 119 [2023-11-12 00:56:09,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:09,999 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 70 transitions. [2023-11-12 00:56:09,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-12 00:56:09,999 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions. [2023-11-12 00:56:10,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-12 00:56:10,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:10,003 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:10,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:56:10,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:56:10,220 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:56:10,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:10,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1489589241, now seen corresponding path program 1 times [2023-11-12 00:56:10,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:56:10,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73567670] [2023-11-12 00:56:10,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:10,226 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 [2023-11-12 00:56:10,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:56:10,228 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:56:10,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:56:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:10,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 00:56:10,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:11,708 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 456 proven. 39 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-12 00:56:11,708 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:56:13,335 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:56:13,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73567670] [2023-11-12 00:56:13,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73567670] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:56:13,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1315816744] [2023-11-12 00:56:13,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:13,337 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 00:56:13,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 00:56:13,367 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 00:56:13,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-12 00:56:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:14,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 00:56:14,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:14,539 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 456 proven. 39 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-12 00:56:14,540 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:56:15,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1315816744] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:56:15,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152319863] [2023-11-12 00:56:15,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:15,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:15,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:15,136 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:56:15,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 00:56:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:15,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 00:56:15,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 456 proven. 39 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-12 00:56:15,760 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:56:16,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152319863] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:56:16,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:56:16,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2023-11-12 00:56:16,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46651681] [2023-11-12 00:56:16,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:56:16,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 00:56:16,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:56:16,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 00:56:16,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-12 00:56:16,318 INFO L87 Difference]: Start difference. First operand 49 states and 70 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-12 00:56:18,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:18,948 INFO L93 Difference]: Finished difference Result 107 states and 147 transitions. [2023-11-12 00:56:18,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 00:56:18,966 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 119 [2023-11-12 00:56:18,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:18,968 INFO L225 Difference]: With dead ends: 107 [2023-11-12 00:56:18,968 INFO L226 Difference]: Without dead ends: 61 [2023-11-12 00:56:18,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2023-11-12 00:56:18,971 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 59 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:18,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 159 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-12 00:56:18,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-12 00:56:18,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2023-11-12 00:56:18,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 34 states have (on average 1.088235294117647) internal successors, (37), 34 states have internal predecessors, (37), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 00:56:18,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2023-11-12 00:56:18,990 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 119 [2023-11-12 00:56:18,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:18,992 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2023-11-12 00:56:18,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-12 00:56:18,992 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2023-11-12 00:56:18,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-12 00:56:18,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:18,995 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:19,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:19,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:19,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:56:19,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:56:19,601 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:56:19,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:19,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1030370693, now seen corresponding path program 1 times [2023-11-12 00:56:19,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:56:19,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485205191] [2023-11-12 00:56:19,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:19,603 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 [2023-11-12 00:56:19,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:56:19,604 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:56:19,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:56:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:19,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:56:19,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:19,964 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 178 proven. 6 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2023-11-12 00:56:19,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:56:20,163 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-11-12 00:56:20,164 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:56:20,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485205191] [2023-11-12 00:56:20,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485205191] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:56:20,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [299607519] [2023-11-12 00:56:20,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:20,173 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 00:56:20,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 00:56:20,177 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 00:56:20,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-12 00:56:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:21,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 00:56:21,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:21,236 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 178 proven. 6 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2023-11-12 00:56:21,237 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:56:21,410 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-11-12 00:56:21,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [299607519] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:56:21,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241724960] [2023-11-12 00:56:21,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:21,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:21,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:21,414 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:56:21,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 00:56:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:21,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:56:21,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:56:21,738 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 178 proven. 6 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2023-11-12 00:56:21,738 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:56:21,903 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-11-12 00:56:21,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241724960] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:56:21,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-12 00:56:21,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 8 [2023-11-12 00:56:21,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741018641] [2023-11-12 00:56:21,905 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-12 00:56:21,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 00:56:21,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:56:21,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 00:56:21,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:56:21,909 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-12 00:56:23,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:23,290 INFO L93 Difference]: Finished difference Result 121 states and 156 transitions. [2023-11-12 00:56:23,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 00:56:23,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 119 [2023-11-12 00:56:23,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:23,308 INFO L225 Difference]: With dead ends: 121 [2023-11-12 00:56:23,308 INFO L226 Difference]: Without dead ends: 67 [2023-11-12 00:56:23,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 700 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-11-12 00:56:23,311 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 63 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:23,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 93 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-12 00:56:23,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-12 00:56:23,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 61. [2023-11-12 00:56:23,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 37 states have (on average 1.054054054054054) internal successors, (39), 37 states have internal predecessors, (39), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 00:56:23,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2023-11-12 00:56:23,339 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 119 [2023-11-12 00:56:23,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:23,340 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2023-11-12 00:56:23,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-12 00:56:23,341 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2023-11-12 00:56:23,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-12 00:56:23,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:23,344 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:23,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:23,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:56:23,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-12 00:56:23,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt [2023-11-12 00:56:23,958 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:56:23,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:23,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1032217735, now seen corresponding path program 1 times [2023-11-12 00:56:23,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:56:23,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958751891] [2023-11-12 00:56:23,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:23,960 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 [2023-11-12 00:56:23,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:56:23,961 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:56:23,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_522a607b-7390-41cc-8bd6-3b0843ec4a35/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:56:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:24,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-12 00:56:24,363 INFO L285 TraceCheckSpWp]: Computing forward predicates...