./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 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire --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-30e01a7 [2023-11-23 20:33:27,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:27,329 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:33:27,337 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:27,338 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:27,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:27,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:27,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:27,382 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:27,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:27,388 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:27,389 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:27,390 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:27,392 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:33:27,392 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:27,393 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:27,393 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:33:27,394 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:33:27,394 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:27,395 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:33:27,396 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:33:27,396 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:33:27,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:27,399 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:27,399 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:33:27,400 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:27,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:33:27,401 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:27,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:27,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:27,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:27,404 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:33:27,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:27,404 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:27,405 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:27,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:27,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:27,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:27,406 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:27,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:27,407 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:27,407 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:33:27,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:33:27,408 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:27,409 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:27,409 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:27,409 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:27,410 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_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da2ee77b35405689fc5c65c91bc7d87d5288020b288dd575aada93fb6bdf0f20 [2023-11-23 20:33:27,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:27,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:27,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:27,784 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:27,785 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:27,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i [2023-11-23 20:33:31,073 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:31,356 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:31,357 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i [2023-11-23 20:33:31,368 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/data/4b9d3f64b/a48fe0cc360f49769baa9738fbd25892/FLAG9c8f40b6b [2023-11-23 20:33:31,386 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/data/4b9d3f64b/a48fe0cc360f49769baa9738fbd25892 [2023-11-23 20:33:31,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:31,395 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:31,399 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:31,399 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:31,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:31,406 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@793ba684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31, skipping insertion in model container [2023-11-23 20:33:31,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,450 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:31,658 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_611d9807-af2e-4787-9143-d474a655e65d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i[913,926] [2023-11-23 20:33:31,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:31,713 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:31,726 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_611d9807-af2e-4787-9143-d474a655e65d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i[913,926] [2023-11-23 20:33:31,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:31,767 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:31,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31 WrapperNode [2023-11-23 20:33:31,768 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:31,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:31,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:31,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:31,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,788 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,827 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2023-11-23 20:33:31,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:31,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:31,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:31,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:31,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,857 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,859 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:31,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:31,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:31,882 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:31,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:31,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:31,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:31,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:33:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:33:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:33:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:32,052 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:32,055 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:32,432 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:32,762 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:32,763 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:33:32,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:32 BoogieIcfgContainer [2023-11-23 20:33:32,765 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:32,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:32,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:32,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:32,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:31" (1/3) ... [2023-11-23 20:33:32,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725a10e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:32, skipping insertion in model container [2023-11-23 20:33:32,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (2/3) ... [2023-11-23 20:33:32,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725a10e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:32, skipping insertion in model container [2023-11-23 20:33:32,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:32" (3/3) ... [2023-11-23 20:33:32,778 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-92.i [2023-11-23 20:33:32,800 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:32,800 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:33:32,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:32,863 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;@4f93f462, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:32,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:33:32,868 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) [2023-11-23 20:33:32,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 20:33:32,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:32,880 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] [2023-11-23 20:33:32,880 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:32,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:32,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1156367375, now seen corresponding path program 1 times [2023-11-23 20:33:32,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:32,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154321085] [2023-11-23 20:33:32,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:32,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:33,101 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:33:33,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [174224146] [2023-11-23 20:33:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:33,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:33:33,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:33,105 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:33:33,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:33:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:33:33,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:33:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:33:33,480 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:33:33,484 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:33:33,485 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:33:33,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:33,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 20:33:33,699 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:33:33,702 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:33:33,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:33:33 BoogieIcfgContainer [2023-11-23 20:33:33,829 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:33:33,830 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:33:33,830 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:33:33,830 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:33:33,831 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:32" (3/4) ... [2023-11-23 20:33:33,833 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:33:33,834 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:33:33,836 INFO L158 Benchmark]: Toolchain (without parser) took 2440.60ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 93.5MB in the beginning and 94.1MB in the end (delta: -522.4kB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2023-11-23 20:33:33,836 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 98.6MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:33:33,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.86ms. Allocated memory is still 138.4MB. Free memory was 93.5MB in the beginning and 81.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:33:33,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.27ms. Allocated memory is still 138.4MB. Free memory was 81.0MB in the beginning and 78.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:33:33,838 INFO L158 Benchmark]: Boogie Preprocessor took 35.52ms. Allocated memory is still 138.4MB. Free memory was 78.4MB in the beginning and 76.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:33:33,839 INFO L158 Benchmark]: RCFGBuilder took 883.73ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 76.8MB in the beginning and 130.7MB in the end (delta: -53.9MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2023-11-23 20:33:33,840 INFO L158 Benchmark]: TraceAbstraction took 1061.18ms. Allocated memory is still 174.1MB. Free memory was 130.7MB in the beginning and 94.1MB in the end (delta: 36.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-23 20:33:33,840 INFO L158 Benchmark]: Witness Printer took 4.72ms. Allocated memory is still 174.1MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:33:33,853 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 98.6MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 369.86ms. Allocated memory is still 138.4MB. Free memory was 93.5MB in the beginning and 81.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.27ms. Allocated memory is still 138.4MB. Free memory was 81.0MB in the beginning and 78.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.52ms. Allocated memory is still 138.4MB. Free memory was 78.4MB in the beginning and 76.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 883.73ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 76.8MB in the beginning and 130.7MB in the end (delta: -53.9MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1061.18ms. Allocated memory is still 174.1MB. Free memory was 130.7MB in the beginning and 94.1MB in the end (delta: 36.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.72ms. Allocated memory is still 174.1MB. Free memory is still 94.1MB. 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=3, 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=3, 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=3, 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=3, 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=3, 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=3, 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=3, 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=3, 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=3, 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=3, 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=3, 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=3, 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=3, var_1_4=0, var_1_5=0, var_1_6=2, 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=3, var_1_4=0, var_1_5=0, var_1_6=2, 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=3, var_1_4=0, var_1_5=0, var_1_6=2, 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=3, var_1_4=0, var_1_5=0, var_1_6=2, 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=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8, 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=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8, 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=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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=3, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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=3, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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=3, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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=3, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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=3, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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=3, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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=3, var_1_15=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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=3, var_1_15=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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=3, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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=3, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [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 FALSE !(stepLocal_0 >= var_1_4) [L46] var_1_7 = var_1_9 [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=66, var_1_13=0, var_1_14=3, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=1, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=3, 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=66, var_1_13=0, var_1_14=3, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=1, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=3, 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: 0.9s, 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, 0.2s 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 [2023-11-23 20:33:33,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire --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-30e01a7 [2023-11-23 20:33:36,681 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:36,770 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:33:36,782 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:36,783 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:36,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:36,836 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:36,837 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:36,838 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:36,843 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:36,844 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:36,845 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:36,845 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:36,847 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:36,847 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:36,848 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:36,851 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:36,852 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:36,852 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:33:36,853 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:33:36,854 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:36,854 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:36,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:36,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:36,856 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:33:36,856 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:33:36,856 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:33:36,857 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:33:36,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:36,858 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:36,859 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:36,859 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:33:36,860 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:36,860 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:36,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:36,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:36,861 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:36,861 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:36,862 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:33:36,863 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:36,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:36,863 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:36,863 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:36,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:36,865 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_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da2ee77b35405689fc5c65c91bc7d87d5288020b288dd575aada93fb6bdf0f20 [2023-11-23 20:33:37,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:37,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:37,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:37,324 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:37,325 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:37,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i [2023-11-23 20:33:40,794 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:41,156 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:41,157 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i [2023-11-23 20:33:41,169 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/data/cc31a2ea8/5fcf93bcd44d4ac1a583f6ff4c0b8f34/FLAG5d0c70f57 [2023-11-23 20:33:41,190 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/data/cc31a2ea8/5fcf93bcd44d4ac1a583f6ff4c0b8f34 [2023-11-23 20:33:41,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:41,203 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:41,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:41,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:41,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:41,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:41" (1/1) ... [2023-11-23 20:33:41,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@494fd523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:41, skipping insertion in model container [2023-11-23 20:33:41,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:41" (1/1) ... [2023-11-23 20:33:41,265 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:41,485 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_611d9807-af2e-4787-9143-d474a655e65d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i[913,926] [2023-11-23 20:33:41,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:41,603 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:41,622 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_611d9807-af2e-4787-9143-d474a655e65d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-92.i[913,926] [2023-11-23 20:33:41,667 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:41,703 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:41,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:41 WrapperNode [2023-11-23 20:33:41,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:41,705 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:41,706 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:41,706 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:41,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:41" (1/1) ... [2023-11-23 20:33:41,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:41" (1/1) ... [2023-11-23 20:33:41,812 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2023-11-23 20:33:41,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:41,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:41,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:41,814 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:41,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:41" (1/1) ... [2023-11-23 20:33:41,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:41" (1/1) ... [2023-11-23 20:33:41,845 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:41" (1/1) ... [2023-11-23 20:33:41,849 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:41" (1/1) ... [2023-11-23 20:33:41,861 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:41" (1/1) ... [2023-11-23 20:33:41,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:41" (1/1) ... [2023-11-23 20:33:41,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:41" (1/1) ... [2023-11-23 20:33:41,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:41" (1/1) ... [2023-11-23 20:33:41,886 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:41,887 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:41,887 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:41,888 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:41,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:41" (1/1) ... [2023-11-23 20:33:41,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:41,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:41,923 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:41,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:33:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:33:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:33:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:42,081 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:42,087 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:43,090 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:43,185 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:43,185 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:33:43,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:43 BoogieIcfgContainer [2023-11-23 20:33:43,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:43,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:43,199 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:43,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:43,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:41" (1/3) ... [2023-11-23 20:33:43,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da18527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:43, skipping insertion in model container [2023-11-23 20:33:43,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:41" (2/3) ... [2023-11-23 20:33:43,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da18527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:43, skipping insertion in model container [2023-11-23 20:33:43,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:43" (3/3) ... [2023-11-23 20:33:43,208 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-92.i [2023-11-23 20:33:43,231 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:43,232 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:33:43,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:43,306 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;@3c84efe5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:43,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:33:43,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 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) [2023-11-23 20:33:43,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 20:33:43,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:43,332 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] [2023-11-23 20:33:43,333 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:43,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:43,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1944405470, now seen corresponding path program 1 times [2023-11-23 20:33:43,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:43,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818385375] [2023-11-23 20:33:43,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:43,362 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 [2023-11-23 20:33:43,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:43,365 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:43,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:43,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:33:43,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:43,844 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2023-11-23 20:33:43,844 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:43,845 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:43,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818385375] [2023-11-23 20:33:43,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818385375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:43,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:43,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:33:43,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488954996] [2023-11-23 20:33:43,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:43,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:33:43,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:43,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:33:43,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:33:43,907 INFO L87 Difference]: Start difference. First operand has 47 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 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 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2023-11-23 20:33:44,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:44,116 INFO L93 Difference]: Finished difference Result 91 states and 159 transitions. [2023-11-23 20:33:44,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:33:44,128 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 115 [2023-11-23 20:33:44,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:44,136 INFO L225 Difference]: With dead ends: 91 [2023-11-23 20:33:44,136 INFO L226 Difference]: Without dead ends: 45 [2023-11-23 20:33:44,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:33:44,145 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:44,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 20:33:44,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-23 20:33:44,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-23 20:33:44,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 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) [2023-11-23 20:33:44,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2023-11-23 20:33:44,210 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 66 transitions. Word has length 115 [2023-11-23 20:33:44,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:44,211 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 66 transitions. [2023-11-23 20:33:44,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2023-11-23 20:33:44,213 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2023-11-23 20:33:44,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 20:33:44,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:44,219 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] [2023-11-23 20:33:44,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:44,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:44,427 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:44,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:44,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1324552216, now seen corresponding path program 1 times [2023-11-23 20:33:44,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:44,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650435303] [2023-11-23 20:33:44,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:44,430 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 [2023-11-23 20:33:44,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:44,431 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:44,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:44,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:33:44,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:45,789 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 456 proven. 39 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-23 20:33:45,789 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:46,850 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:46,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650435303] [2023-11-23 20:33:46,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650435303] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:33:46,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [810607281] [2023-11-23 20:33:46,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:46,851 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:46,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:33:46,854 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:33:46,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 20:33:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:47,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 20:33:47,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:48,135 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 456 proven. 39 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-23 20:33:48,135 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:48,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [810607281] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:33:48,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623213017] [2023-11-23 20:33:48,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:48,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:33:48,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:48,628 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:33:48,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 20:33:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:48,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:33:48,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:49,331 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 456 proven. 39 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-23 20:33:49,331 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:49,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623213017] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:33:49,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 20:33:49,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2023-11-23 20:33:49,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093901358] [2023-11-23 20:33:49,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 20:33:49,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 20:33:49,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:49,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 20:33:49,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-23 20:33:49,816 INFO L87 Difference]: Start difference. First operand 45 states and 66 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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) [2023-11-23 20:33:52,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:52,417 INFO L93 Difference]: Finished difference Result 101 states and 141 transitions. [2023-11-23 20:33:52,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 20:33:52,429 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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 115 [2023-11-23 20:33:52,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:52,431 INFO L225 Difference]: With dead ends: 101 [2023-11-23 20:33:52,431 INFO L226 Difference]: Without dead ends: 57 [2023-11-23 20:33:52,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2023-11-23 20:33:52,434 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 37 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:52,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 117 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 20:33:52,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-23 20:33:52,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2023-11-23 20:33:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 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) [2023-11-23 20:33:52,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions. [2023-11-23 20:33:52,449 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 71 transitions. Word has length 115 [2023-11-23 20:33:52,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:52,450 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 71 transitions. [2023-11-23 20:33:52,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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) [2023-11-23 20:33:52,451 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions. [2023-11-23 20:33:52,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 20:33:52,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:52,454 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] [2023-11-23 20:33:52,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:52,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:52,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:53,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:53,070 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:53,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:53,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1381810518, now seen corresponding path program 1 times [2023-11-23 20:33:53,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:53,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522499877] [2023-11-23 20:33:53,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:53,072 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 [2023-11-23 20:33:53,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:53,073 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:53,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:53,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:33:53,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:53,494 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 178 proven. 6 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2023-11-23 20:33:53,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:53,766 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-11-23 20:33:53,767 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:53,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522499877] [2023-11-23 20:33:53,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522499877] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:33:53,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [898358351] [2023-11-23 20:33:53,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:53,768 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:53,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:33:53,769 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:33:53,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-23 20:33:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:54,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:33:54,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:54,617 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 178 proven. 6 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2023-11-23 20:33:54,617 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:54,843 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-11-23 20:33:54,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [898358351] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:33:54,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439256000] [2023-11-23 20:33:54,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:54,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:33:54,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:54,845 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:33:54,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 20:33:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:54,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:33:54,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 178 proven. 6 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2023-11-23 20:33:55,133 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:55,343 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-11-23 20:33:55,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439256000] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:33:55,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 20:33:55,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 8 [2023-11-23 20:33:55,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484097250] [2023-11-23 20:33:55,344 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 20:33:55,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 20:33:55,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:55,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 20:33:55,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 20:33:55,347 INFO L87 Difference]: Start difference. First operand 53 states and 71 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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) [2023-11-23 20:33:56,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:56,298 INFO L93 Difference]: Finished difference Result 115 states and 150 transitions. [2023-11-23 20:33:56,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 20:33:56,311 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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 115 [2023-11-23 20:33:56,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:56,314 INFO L225 Difference]: With dead ends: 115 [2023-11-23 20:33:56,314 INFO L226 Difference]: Without dead ends: 63 [2023-11-23 20:33:56,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 676 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-11-23 20:33:56,317 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 54 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:56,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 75 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 20:33:56,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-23 20:33:56,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 57. [2023-11-23 20:33:56,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 33 states have internal predecessors, (35), 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) [2023-11-23 20:33:56,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 73 transitions. [2023-11-23 20:33:56,332 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 73 transitions. Word has length 115 [2023-11-23 20:33:56,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:56,333 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 73 transitions. [2023-11-23 20:33:56,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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) [2023-11-23 20:33:56,334 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2023-11-23 20:33:56,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 20:33:56,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:56,336 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] [2023-11-23 20:33:56,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:56,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:56,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:56,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:56,954 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:56,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:56,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1381750936, now seen corresponding path program 1 times [2023-11-23 20:33:56,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:56,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175127420] [2023-11-23 20:33:56,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:56,956 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 [2023-11-23 20:33:56,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:56,957 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:56,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611d9807-af2e-4787-9143-d474a655e65d/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:57,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-23 20:33:57,286 INFO L285 TraceCheckSpWp]: Computing forward predicates...