./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-32.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-32.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh --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 67d7a7169c3a651986674642d9c97cbbd9936901b5f185205eb535897337bc6e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:37:02,040 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:37:02,105 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:37:02,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:37:02,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:37:02,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:37:02,138 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:37:02,139 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:37:02,139 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:37:02,140 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:37:02,140 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:37:02,141 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:37:02,141 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:37:02,142 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:37:02,142 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:37:02,143 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:37:02,143 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:37:02,144 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:37:02,144 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:37:02,145 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:37:02,145 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:37:02,146 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:37:02,147 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:37:02,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:37:02,148 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:37:02,148 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:37:02,149 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:37:02,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:37:02,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:37:02,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:37:02,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:37:02,151 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:37:02,151 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:37:02,151 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:37:02,151 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:37:02,152 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:37:02,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:37:02,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:37:02,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:37:02,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:37:02,153 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:37:02,153 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:37:02,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:37:02,154 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:37:02,154 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:37:02,154 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:37:02,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:37:02,154 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_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67d7a7169c3a651986674642d9c97cbbd9936901b5f185205eb535897337bc6e [2023-12-02 13:37:02,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:37:02,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:37:02,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:37:02,392 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:37:02,392 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:37:02,394 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-32.i [2023-12-02 13:37:05,187 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:37:05,344 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:37:05,344 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-32.i [2023-12-02 13:37:05,350 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/data/97c7a462b/b68e6c07a35e432eb34e9a5faacc48bc/FLAG5b16f00e5 [2023-12-02 13:37:05,361 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/data/97c7a462b/b68e6c07a35e432eb34e9a5faacc48bc [2023-12-02 13:37:05,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:37:05,365 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:37:05,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:37:05,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:37:05,370 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:37:05,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:37:05" (1/1) ... [2023-12-02 13:37:05,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1114c716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:05, skipping insertion in model container [2023-12-02 13:37:05,372 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:37:05" (1/1) ... [2023-12-02 13:37:05,391 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:37:05,510 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_92535c3e-19d6-4418-a26d-b93515cfaf36/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-32.i[915,928] [2023-12-02 13:37:05,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:37:05,549 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:37:05,560 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_92535c3e-19d6-4418-a26d-b93515cfaf36/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-32.i[915,928] [2023-12-02 13:37:05,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:37:05,586 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:37:05,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:05 WrapperNode [2023-12-02 13:37:05,586 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:37:05,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:37:05,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:37:05,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:37:05,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:05" (1/1) ... [2023-12-02 13:37:05,600 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:05" (1/1) ... [2023-12-02 13:37:05,628 INFO L138 Inliner]: procedures = 26, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 67 [2023-12-02 13:37:05,628 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:37:05,629 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:37:05,629 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:37:05,629 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:37:05,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:05" (1/1) ... [2023-12-02 13:37:05,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:05" (1/1) ... [2023-12-02 13:37:05,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:05" (1/1) ... [2023-12-02 13:37:05,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:05" (1/1) ... [2023-12-02 13:37:05,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:05" (1/1) ... [2023-12-02 13:37:05,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:05" (1/1) ... [2023-12-02 13:37:05,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:05" (1/1) ... [2023-12-02 13:37:05,654 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:05" (1/1) ... [2023-12-02 13:37:05,656 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:37:05,657 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:37:05,657 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:37:05,658 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:37:05,658 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:05" (1/1) ... [2023-12-02 13:37:05,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:37:05,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:37:05,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:37:05,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:37:05,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:37:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:37:05,725 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:37:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:37:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:37:05,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:37:05,802 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:37:05,804 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:37:05,983 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:37:06,049 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:37:06,049 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:37:06,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:37:06 BoogieIcfgContainer [2023-12-02 13:37:06,051 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:37:06,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:37:06,054 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:37:06,057 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:37:06,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:37:05" (1/3) ... [2023-12-02 13:37:06,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663a87cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:37:06, skipping insertion in model container [2023-12-02 13:37:06,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:05" (2/3) ... [2023-12-02 13:37:06,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663a87cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:37:06, skipping insertion in model container [2023-12-02 13:37:06,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:37:06" (3/3) ... [2023-12-02 13:37:06,060 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-32.i [2023-12-02 13:37:06,079 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:37:06,079 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:37:06,127 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:37:06,134 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;@239e78f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:37:06,135 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:37:06,139 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-02 13:37:06,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-02 13:37:06,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:37:06,148 INFO L195 NwaCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:37:06,148 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:37:06,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:37:06,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1023335555, now seen corresponding path program 1 times [2023-12-02 13:37:06,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:37:06,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164592519] [2023-12-02 13:37:06,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:37:06,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:37:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:37:06,352 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:37:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:37:06,438 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 13:37:06,439 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:37:06,440 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:37:06,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:37:06,445 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:37:06,449 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:37:06,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:37:06 BoogieIcfgContainer [2023-12-02 13:37:06,480 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:37:06,481 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:37:06,481 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:37:06,481 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:37:06,482 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:37:06" (3/4) ... [2023-12-02 13:37:06,484 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:37:06,485 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:37:06,486 INFO L158 Benchmark]: Toolchain (without parser) took 1121.08ms. Allocated memory is still 155.2MB. Free memory was 116.5MB in the beginning and 113.9MB in the end (delta: 2.6MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-12-02 13:37:06,487 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 111.1MB. Free memory was 61.8MB in the beginning and 61.6MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:37:06,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.91ms. Allocated memory is still 155.2MB. Free memory was 116.5MB in the beginning and 105.1MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 13:37:06,488 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.42ms. Allocated memory is still 155.2MB. Free memory was 105.1MB in the beginning and 103.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:37:06,488 INFO L158 Benchmark]: Boogie Preprocessor took 27.38ms. Allocated memory is still 155.2MB. Free memory was 103.1MB in the beginning and 101.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:37:06,489 INFO L158 Benchmark]: RCFGBuilder took 393.36ms. Allocated memory is still 155.2MB. Free memory was 101.4MB in the beginning and 85.0MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 13:37:06,489 INFO L158 Benchmark]: TraceAbstraction took 427.06ms. Allocated memory is still 155.2MB. Free memory was 84.6MB in the beginning and 113.9MB in the end (delta: -29.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:37:06,490 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 155.2MB. Free memory is still 113.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:37:06,493 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 111.1MB. Free memory was 61.8MB in the beginning and 61.6MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.91ms. Allocated memory is still 155.2MB. Free memory was 116.5MB in the beginning and 105.1MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.42ms. Allocated memory is still 155.2MB. Free memory was 105.1MB in the beginning and 103.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.38ms. Allocated memory is still 155.2MB. Free memory was 103.1MB in the beginning and 101.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 393.36ms. Allocated memory is still 155.2MB. Free memory was 101.4MB in the beginning and 85.0MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 427.06ms. Allocated memory is still 155.2MB. Free memory was 84.6MB in the beginning and 113.9MB in the end (delta: -29.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 155.2MB. Free memory is still 113.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 56. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 4; [L23] unsigned char var_1_2 = 1; [L24] signed short int var_1_5 = -32475; [L25] float var_1_7 = 7.2; [L26] float var_1_8 = 500.4; [L27] unsigned char var_1_9 = 10; [L28] unsigned char var_1_10 = 16; [L29] unsigned short int var_1_11 = 4; [L60] isInitial = 1 [L61] FCALL initially() [L62] COND TRUE 1 [L63] FCALL updateLastVariables() [L64] CALL updateVariables() [L41] var_1_2 = __VERIFIER_nondet_uchar() [L42] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=4, var_1_1=4, var_1_5=-32475, var_1_7=36/5, var_1_8=2502/5, var_1_9=10] [L20] COND FALSE !(!cond) [L42] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=4, var_1_1=4, var_1_5=-32475, var_1_7=36/5, var_1_8=2502/5, var_1_9=10] [L43] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=4, var_1_1=4, var_1_2=0, var_1_5=-32475, var_1_7=36/5, var_1_8=2502/5, var_1_9=10] [L20] COND FALSE !(!cond) [L43] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=16, var_1_11=4, var_1_1=4, var_1_2=0, var_1_5=-32475, var_1_7=36/5, var_1_8=2502/5, var_1_9=10] [L44] var_1_5 = __VERIFIER_nondet_short() [L45] CALL assume_abort_if_not(var_1_5 >= -32766) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=4, var_1_1=4, var_1_2=0, var_1_5=-32766, var_1_7=36/5, var_1_8=2502/5, var_1_9=10] [L20] COND FALSE !(!cond) [L45] RET assume_abort_if_not(var_1_5 >= -32766) VAL [isInitial=1, var_1_10=16, var_1_11=4, var_1_1=4, var_1_2=0, var_1_5=-32766, var_1_7=36/5, var_1_8=2502/5, var_1_9=10] [L46] CALL assume_abort_if_not(var_1_5 <= -16383) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=4, var_1_1=4, var_1_2=0, var_1_5=-32766, var_1_7=36/5, var_1_8=2502/5, var_1_9=10] [L20] COND FALSE !(!cond) [L46] RET assume_abort_if_not(var_1_5 <= -16383) VAL [isInitial=1, var_1_10=16, var_1_11=4, var_1_1=4, var_1_2=0, var_1_5=-32766, var_1_7=36/5, var_1_8=2502/5, var_1_9=10] [L47] var_1_8 = __VERIFIER_nondet_float() [L48] 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=16, var_1_11=4, var_1_1=4, var_1_2=0, var_1_5=-32766, var_1_7=36/5, var_1_9=10] [L20] COND FALSE !(!cond) [L48] 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=16, var_1_11=4, var_1_1=4, var_1_2=0, var_1_5=-32766, var_1_7=36/5, var_1_9=10] [L49] var_1_10 = __VERIFIER_nondet_uchar() [L50] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=4, var_1_1=4, var_1_2=0, var_1_5=-32766, var_1_7=36/5, var_1_9=10] [L20] COND FALSE !(!cond) [L50] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=4, var_1_1=4, var_1_2=0, var_1_5=-32766, var_1_7=36/5, var_1_9=10] [L51] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=254, var_1_11=4, var_1_1=4, var_1_2=0, var_1_5=-32766, var_1_7=36/5, var_1_9=10] [L20] COND FALSE !(!cond) [L51] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, var_1_10=254, var_1_11=4, var_1_1=4, var_1_2=0, var_1_5=-32766, var_1_7=36/5, var_1_9=10] [L64] RET updateVariables() [L65] CALL step() [L33] var_1_7 = var_1_8 [L34] var_1_9 = var_1_10 [L35] COND FALSE !(\read(var_1_2)) [L38] var_1_11 = var_1_1 [L65] RET step() [L66] CALL, EXPR property() [L56-L57] return (((var_1_2 ? (var_1_1 == ((signed short int) ((((((var_1_9 + 16)) > (var_1_9)) ? ((var_1_9 + 16)) : (var_1_9))) - (((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))) - var_1_9)))) : 1) && (var_1_7 == ((float) var_1_8))) && (var_1_9 == ((unsigned char) var_1_10))) && (var_1_11 == ((unsigned short int) var_1_1)) ; [L66] RET, EXPR property() [L66] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=254, var_1_11=4, var_1_1=4, var_1_2=0, var_1_5=-32766, var_1_7=505, var_1_8=505, var_1_9=254] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=254, var_1_11=4, var_1_1=4, var_1_2=0, var_1_5=-32766, var_1_7=505, var_1_8=505, var_1_9=254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 7, 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=20occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 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 [2023-12-02 13:37:06,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-32.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh --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 67d7a7169c3a651986674642d9c97cbbd9936901b5f185205eb535897337bc6e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:37:08,454 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:37:08,531 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 13:37:08,537 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:37:08,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:37:08,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:37:08,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:37:08,566 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:37:08,567 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:37:08,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:37:08,568 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:37:08,569 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:37:08,569 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:37:08,570 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:37:08,570 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:37:08,571 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:37:08,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:37:08,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:37:08,573 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:37:08,573 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:37:08,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:37:08,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:37:08,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:37:08,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:37:08,575 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 13:37:08,576 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 13:37:08,576 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 13:37:08,576 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:37:08,577 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:37:08,577 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:37:08,578 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:37:08,578 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 13:37:08,578 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:37:08,578 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:37:08,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:37:08,579 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:37:08,579 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:37:08,579 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:37:08,580 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 13:37:08,580 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 13:37:08,580 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:37:08,580 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:37:08,581 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:37:08,581 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:37:08,581 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_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67d7a7169c3a651986674642d9c97cbbd9936901b5f185205eb535897337bc6e [2023-12-02 13:37:08,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:37:08,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:37:08,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:37:08,904 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:37:08,905 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:37:08,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-32.i [2023-12-02 13:37:11,742 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:37:11,930 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:37:11,930 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-32.i [2023-12-02 13:37:11,939 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/data/aa736fd49/aaca539c2b174fbf81f79b77a80e06f3/FLAGdad98cb4f [2023-12-02 13:37:11,954 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/data/aa736fd49/aaca539c2b174fbf81f79b77a80e06f3 [2023-12-02 13:37:11,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:37:11,959 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:37:11,961 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:37:11,961 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:37:11,966 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:37:11,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:37:11" (1/1) ... [2023-12-02 13:37:11,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c243d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:11, skipping insertion in model container [2023-12-02 13:37:11,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:37:11" (1/1) ... [2023-12-02 13:37:11,992 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:37:12,142 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_92535c3e-19d6-4418-a26d-b93515cfaf36/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-32.i[915,928] [2023-12-02 13:37:12,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:37:12,187 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:37:12,200 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_92535c3e-19d6-4418-a26d-b93515cfaf36/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-32.i[915,928] [2023-12-02 13:37:12,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:37:12,230 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:37:12,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:12 WrapperNode [2023-12-02 13:37:12,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:37:12,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:37:12,232 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:37:12,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:37:12,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:12" (1/1) ... [2023-12-02 13:37:12,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:12" (1/1) ... [2023-12-02 13:37:12,273 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 66 [2023-12-02 13:37:12,273 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:37:12,274 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:37:12,274 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:37:12,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:37:12,284 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:12" (1/1) ... [2023-12-02 13:37:12,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:12" (1/1) ... [2023-12-02 13:37:12,288 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:12" (1/1) ... [2023-12-02 13:37:12,289 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:12" (1/1) ... [2023-12-02 13:37:12,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:12" (1/1) ... [2023-12-02 13:37:12,300 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:12" (1/1) ... [2023-12-02 13:37:12,302 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:12" (1/1) ... [2023-12-02 13:37:12,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:12" (1/1) ... [2023-12-02 13:37:12,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:37:12,308 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:37:12,309 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:37:12,309 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:37:12,310 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:12" (1/1) ... [2023-12-02 13:37:12,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:37:12,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:37:12,339 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:37:12,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:37:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:37:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 13:37:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:37:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:37:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:37:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:37:12,457 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:37:12,459 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:37:12,606 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:37:12,658 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:37:12,658 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:37:12,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:37:12 BoogieIcfgContainer [2023-12-02 13:37:12,659 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:37:12,663 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:37:12,663 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:37:12,666 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:37:12,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:37:11" (1/3) ... [2023-12-02 13:37:12,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f508de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:37:12, skipping insertion in model container [2023-12-02 13:37:12,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:12" (2/3) ... [2023-12-02 13:37:12,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f508de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:37:12, skipping insertion in model container [2023-12-02 13:37:12,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:37:12" (3/3) ... [2023-12-02 13:37:12,669 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-32.i [2023-12-02 13:37:12,684 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:37:12,684 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:37:12,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:37:12,735 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;@3ac9cc7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:37:12,735 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:37:12,739 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-02 13:37:12,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 13:37:12,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:37:12,748 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:37:12,748 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:37:12,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:37:12,753 INFO L85 PathProgramCache]: Analyzing trace with hash -927732406, now seen corresponding path program 1 times [2023-12-02 13:37:12,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:37:12,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091440978] [2023-12-02 13:37:12,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:37:12,765 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 [2023-12-02 13:37:12,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:37:12,768 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:37:12,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:37:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:37:12,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 13:37:12,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:37:12,973 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 13:37:12,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:37:12,974 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:37:12,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091440978] [2023-12-02 13:37:12,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1091440978] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:37:12,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:37:12,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:37:12,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736044110] [2023-12-02 13:37:12,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:37:12,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:37:12,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:37:13,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:37:13,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:37:13,016 INFO L87 Difference]: Start difference. First operand has 25 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 13:37:13,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:37:13,052 INFO L93 Difference]: Finished difference Result 47 states and 75 transitions. [2023-12-02 13:37:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:37:13,055 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 45 [2023-12-02 13:37:13,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:37:13,063 INFO L225 Difference]: With dead ends: 47 [2023-12-02 13:37:13,063 INFO L226 Difference]: Without dead ends: 23 [2023-12-02 13:37:13,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:37:13,071 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:37:13,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:37:13,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-12-02 13:37:13,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-12-02 13:37:13,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-02 13:37:13,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2023-12-02 13:37:13,111 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 45 [2023-12-02 13:37:13,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:37:13,112 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2023-12-02 13:37:13,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 13:37:13,112 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2023-12-02 13:37:13,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 13:37:13,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:37:13,115 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:37:13,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:37:13,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:37:13,316 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:37:13,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:37:13,316 INFO L85 PathProgramCache]: Analyzing trace with hash 474599308, now seen corresponding path program 1 times [2023-12-02 13:37:13,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:37:13,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541503761] [2023-12-02 13:37:13,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:37:13,318 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 [2023-12-02 13:37:13,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:37:13,320 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:37:13,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:37:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:37:13,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 13:37:13,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:37:21,144 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 40 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 13:37:21,145 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:37:32,790 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-02 13:37:32,791 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:37:32,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541503761] [2023-12-02 13:37:32,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541503761] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:37:32,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [522852656] [2023-12-02 13:37:32,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:37:32,792 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:37:32,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:37:32,818 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:37:32,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 13:37:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:37:33,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 13:37:33,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:37:37,872 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 13:37:37,872 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:37:46,511 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-02 13:37:46,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [522852656] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:37:46,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361502881] [2023-12-02 13:37:46,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:37:46,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:37:46,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:37:46,514 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:37:46,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:37:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:37:46,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 13:37:46,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:37:51,027 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:37:51,027 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:38:00,607 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-02 13:38:00,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361502881] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:38:00,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 13:38:00,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 21 [2023-12-02 13:38:00,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649121224] [2023-12-02 13:38:00,609 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 13:38:00,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-02 13:38:00,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:38:00,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-02 13:38:00,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2023-12-02 13:38:00,614 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 21 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 21 states have internal predecessors, (43), 5 states have call successors, (16), 3 states have call predecessors, (16), 7 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2023-12-02 13:38:04,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:38:04,866 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2023-12-02 13:38:04,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 13:38:04,867 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 21 states have internal predecessors, (43), 5 states have call successors, (16), 3 states have call predecessors, (16), 7 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 45 [2023-12-02 13:38:04,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:38:04,868 INFO L225 Difference]: With dead ends: 48 [2023-12-02 13:38:04,868 INFO L226 Difference]: Without dead ends: 46 [2023-12-02 13:38:04,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 243 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=325, Invalid=797, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 13:38:04,870 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 98 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:38:04,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 68 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-02 13:38:04,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-12-02 13:38:04,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 39. [2023-12-02 13:38:04,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 25 states have internal predecessors, (26), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-02 13:38:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2023-12-02 13:38:04,881 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 45 [2023-12-02 13:38:04,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:38:04,882 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2023-12-02 13:38:04,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 21 states have internal predecessors, (43), 5 states have call successors, (16), 3 states have call predecessors, (16), 7 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2023-12-02 13:38:04,882 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2023-12-02 13:38:04,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 13:38:04,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:38:04,883 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:38:04,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 13:38:05,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 13:38:05,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 13:38:05,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/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_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:38:05,485 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:38:05,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:38:05,486 INFO L85 PathProgramCache]: Analyzing trace with hash 474539726, now seen corresponding path program 1 times [2023-12-02 13:38:05,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:38:05,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692340430] [2023-12-02 13:38:05,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:38:05,486 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 [2023-12-02 13:38:05,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:38:05,487 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:38:05,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:38:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:38:05,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 13:38:05,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:38:15,809 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 40 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 13:38:15,810 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:38:19,810 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-02 13:38:19,811 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:38:19,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692340430] [2023-12-02 13:38:19,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692340430] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:38:19,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1853304366] [2023-12-02 13:38:19,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:38:19,811 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:38:19,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:38:19,812 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:38:19,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 13:38:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:38:20,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 13:38:20,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:38:25,192 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 53 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-02 13:38:25,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:38:31,270 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-02 13:38:31,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1853304366] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:38:31,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740466753] [2023-12-02 13:38:31,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:38:31,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:38:31,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:38:31,272 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:38:31,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 13:38:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:38:31,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 13:38:31,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:38:41,345 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:38:41,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:38:46,733 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-02 13:38:46,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740466753] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:38:46,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 13:38:46,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 11, 8, 8, 8] total 28 [2023-12-02 13:38:46,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743044473] [2023-12-02 13:38:46,734 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 13:38:46,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:38:46,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:38:46,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:38:46,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=574, Unknown=0, NotChecked=0, Total=756 [2023-12-02 13:38:46,737 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 28 states, 28 states have (on average 2.0) internal successors, (56), 28 states have internal predecessors, (56), 7 states have call successors, (19), 5 states have call predecessors, (19), 9 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-12-02 13:38:52,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:38:52,396 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2023-12-02 13:38:52,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-02 13:38:52,397 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.0) internal successors, (56), 28 states have internal predecessors, (56), 7 states have call successors, (19), 5 states have call predecessors, (19), 9 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 45 [2023-12-02 13:38:52,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:38:52,398 INFO L225 Difference]: With dead ends: 63 [2023-12-02 13:38:52,398 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 13:38:52,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 238 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=736, Invalid=2020, Unknown=0, NotChecked=0, Total=2756 [2023-12-02 13:38:52,401 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 66 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:38:52,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 126 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-02 13:38:52,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 13:38:52,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 13:38:52,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:38:52,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 13:38:52,402 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2023-12-02 13:38:52,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:38:52,402 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 13:38:52,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.0) internal successors, (56), 28 states have internal predecessors, (56), 7 states have call successors, (19), 5 states have call predecessors, (19), 9 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-12-02 13:38:52,403 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 13:38:52,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 13:38:52,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:38:52,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 13:38:52,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 13:38:52,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/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)] Ended with exit code 0 [2023-12-02 13:38:53,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:38:53,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 13:38:55,233 INFO L899 garLoopResultBuilder]: For program point L35-2(lines 35 37) no Hoare annotation was computed. [2023-12-02 13:38:55,234 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-02 13:38:55,234 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-02 13:38:55,234 INFO L895 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: (and (bvsle ((_ sign_extend 16) ~var_1_5~0) (_ bv4294950913 32)) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-02 13:38:55,234 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-02 13:38:55,234 INFO L899 garLoopResultBuilder]: For program point L48-1(line 48) no Hoare annotation was computed. [2023-12-02 13:38:55,235 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-02 13:38:55,235 INFO L895 garLoopResultBuilder]: At program point L45(line 45) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (or (and (fp.leq ~var_1_8~0 .cse0) (fp.geq ~var_1_8~0 .cse1)) (and (fp.leq ~var_1_8~0 (fp.neg .cse1)) (fp.geq ~var_1_8~0 (fp.neg .cse0))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-02 13:38:55,235 INFO L895 garLoopResultBuilder]: At program point L45-1(line 45) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (or (and (fp.leq ~var_1_8~0 .cse0) (fp.geq ~var_1_8~0 .cse1)) (and (fp.leq ~var_1_8~0 (fp.neg .cse1)) (fp.geq ~var_1_8~0 (fp.neg .cse0))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-02 13:38:55,235 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 13:38:55,236 INFO L895 garLoopResultBuilder]: At program point L62-2(lines 62 68) the Hoare annotation is: (and (or (and (= ((_ zero_extend 24) ~var_1_9~0) ((_ zero_extend 24) ~var_1_10~0)) (fp.eq ~var_1_7~0 ~var_1_8~0)) (not (= ~var_1_2~0 (_ bv0 8)))) (bvsle ((_ sign_extend 16) ~var_1_5~0) (_ bv4294950913 32)) (or (exists ((v_subst_1 RoundingMode)) (and (fp.geq ~var_1_8~0 ((_ to_fp 8 24) v_subst_1 (/ 1.0 100000000000000000000.0))) (fp.leq ~var_1_8~0 ((_ to_fp 8 24) v_subst_1 9223372036854765600.0)))) (exists ((v_subst_2 RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) v_subst_2 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) v_subst_2 (/ 1.0 100000000000000000000.0))))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-02 13:38:55,236 INFO L899 garLoopResultBuilder]: For program point L62-3(lines 62 68) no Hoare annotation was computed. [2023-12-02 13:38:55,236 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (and (bvsle ((_ sign_extend 16) ~var_1_5~0) (_ bv4294950913 32)) (or (exists ((v_subst_1 RoundingMode)) (and (fp.geq ~var_1_8~0 ((_ to_fp 8 24) v_subst_1 (/ 1.0 100000000000000000000.0))) (fp.leq ~var_1_8~0 ((_ to_fp 8 24) v_subst_1 9223372036854765600.0)))) (exists ((v_subst_2 RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) v_subst_2 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) v_subst_2 (/ 1.0 100000000000000000000.0))))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-02 13:38:55,236 INFO L895 garLoopResultBuilder]: At program point L50-1(line 50) the Hoare annotation is: (and (bvsle ((_ sign_extend 16) ~var_1_5~0) (_ bv4294950913 32)) (or (exists ((v_subst_1 RoundingMode)) (and (fp.geq ~var_1_8~0 ((_ to_fp 8 24) v_subst_1 (/ 1.0 100000000000000000000.0))) (fp.leq ~var_1_8~0 ((_ to_fp 8 24) v_subst_1 9223372036854765600.0)))) (exists ((v_subst_2 RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) v_subst_2 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) v_subst_2 (/ 1.0 100000000000000000000.0))))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-02 13:38:55,236 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-12-02 13:38:55,237 INFO L895 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (and (bvsle ((_ sign_extend 16) ~var_1_5~0) (_ bv4294950913 32)) (or (exists ((v_subst_1 RoundingMode)) (and (fp.geq ~var_1_8~0 ((_ to_fp 8 24) v_subst_1 (/ 1.0 100000000000000000000.0))) (fp.leq ~var_1_8~0 ((_ to_fp 8 24) v_subst_1 9223372036854765600.0)))) (exists ((v_subst_2 RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) v_subst_2 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) v_subst_2 (/ 1.0 100000000000000000000.0))))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-02 13:38:55,237 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 13:38:55,237 INFO L895 garLoopResultBuilder]: At program point L42-1(line 42) the Hoare annotation is: (and (bvsle ((_ sign_extend 16) ~var_1_5~0) (_ bv4294950913 32)) (or (exists ((v_subst_1 RoundingMode)) (and (fp.geq ~var_1_8~0 ((_ to_fp 8 24) v_subst_1 (/ 1.0 100000000000000000000.0))) (fp.leq ~var_1_8~0 ((_ to_fp 8 24) v_subst_1 9223372036854765600.0)))) (exists ((v_subst_2 RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) v_subst_2 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) v_subst_2 (/ 1.0 100000000000000000000.0))))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-02 13:38:55,237 INFO L899 garLoopResultBuilder]: For program point L51(lines 40 52) no Hoare annotation was computed. [2023-12-02 13:38:55,237 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2023-12-02 13:38:55,237 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 37) no Hoare annotation was computed. [2023-12-02 13:38:55,237 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-02 13:38:55,237 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-02 13:38:55,238 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-02 13:38:55,238 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-02 13:38:55,241 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-02 13:38:55,242 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:38:55,252 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2023-12-02 13:38:55,253 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_subst_1 : FloatRoundingMode :: ~fp.geq~32(~var_1_8~0, ~to_fp~32(v_subst_1, 1/100000000000000000000)) && ~fp.leq~32(~var_1_8~0, ~to_fp~32(v_subst_1, 9.2233720368547656E18))) could not be translated [2023-12-02 13:38:55,253 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_subst_2 : FloatRoundingMode :: ~fp.geq~32(~var_1_8~0, ~fp.neg~32(~to_fp~32(v_subst_2, 9.2233720368547656E18))) && ~fp.leq~32(~var_1_8~0, ~fp.neg~32(~to_fp~32(v_subst_2, 1/100000000000000000000)))) could not be translated [2023-12-02 13:38:55,253 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-12-02 13:38:55,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:38:55 BoogieIcfgContainer [2023-12-02 13:38:55,254 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:38:55,254 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:38:55,254 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:38:55,255 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:38:55,255 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:37:12" (3/4) ... [2023-12-02 13:38:55,256 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 13:38:55,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-02 13:38:55,267 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-12-02 13:38:55,267 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-12-02 13:38:55,267 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 13:38:55,268 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 13:38:55,364 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 13:38:55,364 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 13:38:55,364 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:38:55,365 INFO L158 Benchmark]: Toolchain (without parser) took 103405.72ms. Allocated memory was 75.5MB in the beginning and 690.0MB in the end (delta: 614.5MB). Free memory was 47.1MB in the beginning and 655.8MB in the end (delta: -608.7MB). Peak memory consumption was 383.0MB. Max. memory is 16.1GB. [2023-12-02 13:38:55,365 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 75.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:38:55,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.80ms. Allocated memory is still 75.5MB. Free memory was 46.8MB in the beginning and 35.1MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 13:38:55,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.43ms. Allocated memory is still 75.5MB. Free memory was 34.9MB in the beginning and 33.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:38:55,366 INFO L158 Benchmark]: Boogie Preprocessor took 33.35ms. Allocated memory is still 75.5MB. Free memory was 33.4MB in the beginning and 31.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:38:55,367 INFO L158 Benchmark]: RCFGBuilder took 351.15ms. Allocated memory was 75.5MB in the beginning and 111.1MB in the end (delta: 35.7MB). Free memory was 31.5MB in the beginning and 77.0MB in the end (delta: -45.5MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2023-12-02 13:38:55,367 INFO L158 Benchmark]: TraceAbstraction took 102591.33ms. Allocated memory was 111.1MB in the beginning and 690.0MB in the end (delta: 578.8MB). Free memory was 76.6MB in the beginning and 281.8MB in the end (delta: -205.2MB). Peak memory consumption was 372.8MB. Max. memory is 16.1GB. [2023-12-02 13:38:55,367 INFO L158 Benchmark]: Witness Printer took 110.07ms. Allocated memory is still 690.0MB. Free memory was 281.8MB in the beginning and 655.8MB in the end (delta: -374.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 13:38:55,369 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 75.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.80ms. Allocated memory is still 75.5MB. Free memory was 46.8MB in the beginning and 35.1MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.43ms. Allocated memory is still 75.5MB. Free memory was 34.9MB in the beginning and 33.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.35ms. Allocated memory is still 75.5MB. Free memory was 33.4MB in the beginning and 31.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 351.15ms. Allocated memory was 75.5MB in the beginning and 111.1MB in the end (delta: 35.7MB). Free memory was 31.5MB in the beginning and 77.0MB in the end (delta: -45.5MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * TraceAbstraction took 102591.33ms. Allocated memory was 111.1MB in the beginning and 690.0MB in the end (delta: 578.8MB). Free memory was 76.6MB in the beginning and 281.8MB in the end (delta: -205.2MB). Peak memory consumption was 372.8MB. Max. memory is 16.1GB. * Witness Printer took 110.07ms. Allocated memory is still 690.0MB. Free memory was 281.8MB in the beginning and 655.8MB in the end (delta: -374.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_subst_1 : FloatRoundingMode :: ~fp.geq~32(~var_1_8~0, ~to_fp~32(v_subst_1, 1/100000000000000000000)) && ~fp.leq~32(~var_1_8~0, ~to_fp~32(v_subst_1, 9.2233720368547656E18))) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_subst_2 : FloatRoundingMode :: ~fp.geq~32(~var_1_8~0, ~fp.neg~32(~to_fp~32(v_subst_2, 9.2233720368547656E18))) && ~fp.leq~32(~var_1_8~0, ~fp.neg~32(~to_fp~32(v_subst_2, 1/100000000000000000000)))) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 102.5s, OverallIterations: 3, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 164 mSDsluCounter, 221 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 147 mSDsCounter, 97 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 593 IncrementalHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 97 mSolverCounterUnsat, 74 mSDtfsCounter, 593 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 614 GetRequests, 525 SyntacticMatches, 6 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 17.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=2, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 28 PreInvPairs, 44 NumberOfFragments, 256 HoareAnnotationTreeSize, 28 FomulaSimplifications, 577 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 3289 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 87.6s InterpolantComputationTime, 315 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 572 ConstructedInterpolants, 20 QuantifiedInterpolants, 13874 SizeOfPredicates, 107 NumberOfNonLiveVariables, 598 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 916/1092 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (((var_1_9 == var_1_10) || !((var_1_2 == 0))) && (var_1_5 <= -16383)) RESULT: Ultimate proved your program to be correct! [2023-12-02 13:38:55,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92535c3e-19d6-4418-a26d-b93515cfaf36/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE