./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-48.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-48.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 19044d04f5d29bc0e023ff07562dabdd7e4e4454670557ac2919985198246885 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:14:29,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:14:29,572 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:14:29,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:14:29,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:14:29,621 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:14:29,622 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:14:29,623 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:14:29,624 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:14:29,629 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:14:29,629 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:14:29,630 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:14:29,631 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:14:29,633 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:14:29,633 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:14:29,633 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:14:29,634 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:14:29,634 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:14:29,635 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:14:29,635 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:14:29,636 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:14:29,636 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:14:29,637 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:14:29,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:14:29,638 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:14:29,638 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:14:29,638 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:14:29,639 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:14:29,639 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:14:29,640 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:14:29,641 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:14:29,641 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:14:29,641 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:14:29,642 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:14:29,642 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:14:29,642 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:14:29,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:14:29,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:14:29,643 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:14:29,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:14:29,643 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:14:29,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:14:29,644 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:14:29,644 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:14:29,645 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:14:29,645 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_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19044d04f5d29bc0e023ff07562dabdd7e4e4454670557ac2919985198246885 [2023-11-19 04:14:29,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:14:29,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:14:29,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:14:29,945 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:14:29,945 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:14:29,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-48.i [2023-11-19 04:14:33,057 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:14:33,264 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:14:33,265 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-48.i [2023-11-19 04:14:33,274 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/data/d5d161ba0/0098940cbb1e48ea908239aa985f9725/FLAG84687de2c [2023-11-19 04:14:33,288 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/data/d5d161ba0/0098940cbb1e48ea908239aa985f9725 [2023-11-19 04:14:33,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:14:33,293 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:14:33,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:33,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:14:33,301 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:14:33,301 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:33" (1/1) ... [2023-11-19 04:14:33,302 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c66e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:33, skipping insertion in model container [2023-11-19 04:14:33,303 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:33" (1/1) ... [2023-11-19 04:14:33,349 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:14:33,481 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_2c7c100b-c445-46fc-a6e8-b84f5b04e310/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-48.i[915,928] [2023-11-19 04:14:33,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:33,537 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:14:33,550 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_2c7c100b-c445-46fc-a6e8-b84f5b04e310/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-48.i[915,928] [2023-11-19 04:14:33,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:33,600 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:14:33,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:33 WrapperNode [2023-11-19 04:14:33,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:33,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:14:33,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:14:33,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:14:33,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:33" (1/1) ... [2023-11-19 04:14:33,624 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:33" (1/1) ... [2023-11-19 04:14:33,658 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2023-11-19 04:14:33,658 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:14:33,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:14:33,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:14:33,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:14:33,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:33" (1/1) ... [2023-11-19 04:14:33,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:33" (1/1) ... [2023-11-19 04:14:33,672 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:33" (1/1) ... [2023-11-19 04:14:33,672 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:33" (1/1) ... [2023-11-19 04:14:33,681 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:33" (1/1) ... [2023-11-19 04:14:33,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:33" (1/1) ... [2023-11-19 04:14:33,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:33" (1/1) ... [2023-11-19 04:14:33,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:33" (1/1) ... [2023-11-19 04:14:33,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:14:33,693 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:14:33,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:14:33,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:14:33,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:33" (1/1) ... [2023-11-19 04:14:33,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:14:33,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:14:33,739 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:14:33,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:14:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:14:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:14:33,798 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:14:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:14:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:14:33,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:14:33,931 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:14:33,933 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:14:34,273 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:14:34,475 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:14:34,481 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:14:34,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:34 BoogieIcfgContainer [2023-11-19 04:14:34,509 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:14:34,512 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:14:34,512 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:14:34,516 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:14:34,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:14:33" (1/3) ... [2023-11-19 04:14:34,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f4daf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:34, skipping insertion in model container [2023-11-19 04:14:34,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:33" (2/3) ... [2023-11-19 04:14:34,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f4daf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:34, skipping insertion in model container [2023-11-19 04:14:34,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:34" (3/3) ... [2023-11-19 04:14:34,519 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-48.i [2023-11-19 04:14:34,541 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:14:34,541 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:14:34,604 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:14:34,610 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;@70b5494, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:14:34,610 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:14:34,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 04:14:34,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-19 04:14:34,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:34,626 INFO L195 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:14:34,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:14:34,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:34,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1272166837, now seen corresponding path program 1 times [2023-11-19 04:14:34,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:34,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735488696] [2023-11-19 04:14:34,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:34,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:34,797 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:14:34,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1648344969] [2023-11-19 04:14:34,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:34,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:14:34,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:14:34,807 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:14:34,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:14:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:14:35,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:14:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:14:35,205 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:14:35,208 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:14:35,209 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:14:35,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:14:35,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 04:14:35,423 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:14:35,439 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:14:35,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:14:35 BoogieIcfgContainer [2023-11-19 04:14:35,584 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:14:35,585 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:14:35,585 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:14:35,585 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:14:35,586 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:34" (3/4) ... [2023-11-19 04:14:35,588 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:14:35,589 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:14:35,591 INFO L158 Benchmark]: Toolchain (without parser) took 2297.79ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 104.1MB in the beginning and 118.1MB in the end (delta: -14.0MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2023-11-19 04:14:35,591 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:14:35,593 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.32ms. Allocated memory is still 151.0MB. Free memory was 104.1MB in the beginning and 91.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:14:35,594 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.94ms. Allocated memory is still 151.0MB. Free memory was 91.3MB in the beginning and 88.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:14:35,600 INFO L158 Benchmark]: Boogie Preprocessor took 33.76ms. Allocated memory is still 151.0MB. Free memory was 88.9MB in the beginning and 87.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:14:35,602 INFO L158 Benchmark]: RCFGBuilder took 815.65ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 87.4MB in the beginning and 152.0MB in the end (delta: -64.6MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2023-11-19 04:14:35,603 INFO L158 Benchmark]: TraceAbstraction took 1072.08ms. Allocated memory is still 182.5MB. Free memory was 151.3MB in the beginning and 119.2MB in the end (delta: 32.1MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2023-11-19 04:14:35,603 INFO L158 Benchmark]: Witness Printer took 4.73ms. Allocated memory is still 182.5MB. Free memory was 119.2MB in the beginning and 118.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:14:35,613 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.32ms. Allocated memory is still 151.0MB. Free memory was 104.1MB in the beginning and 91.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.94ms. Allocated memory is still 151.0MB. Free memory was 91.3MB in the beginning and 88.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.76ms. Allocated memory is still 151.0MB. Free memory was 88.9MB in the beginning and 87.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 815.65ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 87.4MB in the beginning and 152.0MB in the end (delta: -64.6MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1072.08ms. Allocated memory is still 182.5MB. Free memory was 151.3MB in the beginning and 119.2MB in the end (delta: 32.1MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * Witness Printer took 4.73ms. Allocated memory is still 182.5MB. Free memory was 119.2MB in the beginning and 118.1MB in the end (delta: 1.0MB). 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 43, overapproximation of someBinaryArithmeticFLOAToperation at line 60. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 32.8; [L23] float var_1_2 = 255.675; [L24] float var_1_3 = 5.5; [L25] float var_1_4 = 128.75; [L26] float var_1_5 = 4.5; [L27] float var_1_6 = 9.25; [L28] float var_1_7 = 3.75; [L29] float var_1_8 = 127.6; [L30] float var_1_9 = 256.5; [L31] float var_1_10 = 49.5; [L32] unsigned short int var_1_11 = 8; [L33] unsigned char var_1_12 = 0; [L34] unsigned short int var_1_13 = 256; [L35] unsigned char var_1_14 = 64; [L36] signed long int var_1_15 = -8; [L37] unsigned char var_1_16 = 10; [L38] float last_1_var_1_1 = 32.8; [L39] unsigned char last_1_var_1_14 = 64; [L108] isInitial = 1 [L109] FCALL initially() [L110] COND TRUE 1 [L111] CALL updateLastVariables() [L100] last_1_var_1_1 = var_1_1 [L101] last_1_var_1_14 = var_1_14 [L111] RET updateLastVariables() [L112] CALL updateVariables() [L67] var_1_2 = __VERIFIER_nondet_float() [L68] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=11/2, var_1_4=515/4, var_1_5=9/2, var_1_6=37/4, var_1_7=15/4, var_1_8=638/5, var_1_9=513/2] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=11/2, var_1_4=515/4, var_1_5=9/2, var_1_6=37/4, var_1_7=15/4, var_1_8=638/5, var_1_9=513/2] [L69] var_1_3 = __VERIFIER_nondet_float() [L70] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=515/4, var_1_5=9/2, var_1_6=37/4, var_1_7=15/4, var_1_8=638/5, var_1_9=513/2] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=515/4, var_1_5=9/2, var_1_6=37/4, var_1_7=15/4, var_1_8=638/5, var_1_9=513/2] [L71] var_1_4 = __VERIFIER_nondet_float() [L72] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=9/2, var_1_6=37/4, var_1_7=15/4, var_1_8=638/5, var_1_9=513/2] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=9/2, var_1_6=37/4, var_1_7=15/4, var_1_8=638/5, var_1_9=513/2] [L73] var_1_5 = __VERIFIER_nondet_float() [L74] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=37/4, var_1_7=15/4, var_1_8=638/5, var_1_9=513/2] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=37/4, var_1_7=15/4, var_1_8=638/5, var_1_9=513/2] [L75] var_1_6 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_6 >= -922337.2036854765600e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=15/4, var_1_8=638/5, var_1_9=513/2] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_6 >= -922337.2036854765600e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=15/4, var_1_8=638/5, var_1_9=513/2] [L77] var_1_7 = __VERIFIER_nondet_float() [L78] CALL assume_abort_if_not((var_1_7 >= -461168.6018427382800e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=638/5, var_1_9=513/2] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not((var_1_7 >= -461168.6018427382800e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=638/5, var_1_9=513/2] [L79] var_1_8 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=513/2] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=513/2] [L81] var_1_9 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=99/2, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L83] var_1_10 = __VERIFIER_nondet_float() [L84] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=0, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L85] var_1_12 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L87] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=256, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L88] var_1_13 = __VERIFIER_nondet_ushort() [L89] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L90] CALL assume_abort_if_not(var_1_13 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_13 <= 65534) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=-8, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L91] var_1_15 = __VERIFIER_nondet_long() [L92] CALL assume_abort_if_not(var_1_15 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=2, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_15 >= -2147483648) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=2, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L93] CALL assume_abort_if_not(var_1_15 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=2, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_15 <= 2147483647) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=2, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L94] CALL assume_abort_if_not(var_1_15 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=2, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_15 != 0) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=2, var_1_16=10, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L95] var_1_16 = __VERIFIER_nondet_uchar() [L96] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=2, var_1_16=0, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=2, var_1_16=0, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L97] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=2, var_1_16=0, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=8, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=2, var_1_16=0, var_1_1=164/5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L112] RET updateVariables() [L113] CALL step() [L43] COND TRUE ! ((var_1_4 - var_1_10) < last_1_var_1_1) [L44] COND TRUE \read(var_1_12) [L45] var_1_11 = last_1_var_1_14 [L48] signed long int stepLocal_0 = var_1_13 / var_1_15; [L49] COND FALSE !(stepLocal_0 <= (-8 + var_1_11)) [L56] COND TRUE var_1_2 <= var_1_3 [L57] COND TRUE var_1_3 < ((var_1_4 - var_1_5) + 1.395f) [L58] var_1_1 = var_1_6 [L113] RET step() [L114] CALL, EXPR property() [L104-L105] return (((var_1_2 <= var_1_3) ? ((var_1_3 < ((var_1_4 - var_1_5) + 1.395f)) ? (var_1_1 == ((float) var_1_6)) : (var_1_1 == ((float) (((((var_1_7) > (var_1_8)) ? (var_1_7) : (var_1_8))) + (var_1_9 - var_1_10))))) : (var_1_1 == ((float) var_1_7))) && ((! ((var_1_4 - var_1_10) < last_1_var_1_1)) ? (var_1_12 ? (var_1_11 == ((unsigned short int) last_1_var_1_14)) : 1) : 1)) && (((var_1_13 / var_1_15) <= (-8 + var_1_11)) ? ((! (64 < var_1_11)) ? (var_1_14 == ((unsigned char) var_1_16)) : (var_1_14 == ((unsigned char) var_1_16))) : 1) ; [L114] RET, EXPR property() [L114] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=64, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=2, var_1_16=0, var_1_1=5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=64, last_1_var_1_1=164/5, var_1_10=8, var_1_11=64, var_1_12=1, var_1_13=114, var_1_14=64, var_1_15=2, var_1_16=0, var_1_1=5, var_1_3=2, var_1_4=3, var_1_5=4, var_1_6=5, var_1_7=5, var_1_8=6, var_1_9=7] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 18, 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=40occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:14:35,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-48.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 19044d04f5d29bc0e023ff07562dabdd7e4e4454670557ac2919985198246885 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:14:38,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:14:38,392 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:14:38,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:14:38,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:14:38,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:14:38,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:14:38,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:14:38,456 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:14:38,461 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:14:38,462 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:14:38,462 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:14:38,463 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:14:38,465 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:14:38,465 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:14:38,466 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:14:38,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:14:38,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:14:38,468 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:14:38,468 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:14:38,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:14:38,469 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:14:38,470 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:14:38,470 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:14:38,470 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:14:38,471 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:14:38,471 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:14:38,472 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:14:38,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:14:38,473 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:14:38,474 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:14:38,474 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:14:38,475 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:14:38,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:14:38,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:14:38,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:14:38,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:14:38,476 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:14:38,477 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:14:38,478 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:14:38,478 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:14:38,478 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:14:38,479 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_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19044d04f5d29bc0e023ff07562dabdd7e4e4454670557ac2919985198246885 [2023-11-19 04:14:38,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:14:38,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:14:38,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:14:38,949 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:14:38,949 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:14:38,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-48.i [2023-11-19 04:14:42,066 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:14:42,343 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:14:42,349 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-48.i [2023-11-19 04:14:42,362 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/data/1083098aa/18bec3a1b2064c10bc3f9f26f32030cc/FLAGc9cc1fd42 [2023-11-19 04:14:42,380 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/data/1083098aa/18bec3a1b2064c10bc3f9f26f32030cc [2023-11-19 04:14:42,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:14:42,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:14:42,394 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:42,394 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:14:42,399 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:14:42,400 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:42" (1/1) ... [2023-11-19 04:14:42,401 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cfd5b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:42, skipping insertion in model container [2023-11-19 04:14:42,401 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:42" (1/1) ... [2023-11-19 04:14:42,448 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:14:42,640 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_2c7c100b-c445-46fc-a6e8-b84f5b04e310/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-48.i[915,928] [2023-11-19 04:14:42,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:42,738 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:14:42,754 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_2c7c100b-c445-46fc-a6e8-b84f5b04e310/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-48.i[915,928] [2023-11-19 04:14:42,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:42,818 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:14:42,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:42 WrapperNode [2023-11-19 04:14:42,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:42,820 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:14:42,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:14:42,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:14:42,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:42" (1/1) ... [2023-11-19 04:14:42,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:42" (1/1) ... [2023-11-19 04:14:42,899 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 124 [2023-11-19 04:14:42,899 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:14:42,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:14:42,900 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:14:42,900 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:14:42,912 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:42" (1/1) ... [2023-11-19 04:14:42,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:42" (1/1) ... [2023-11-19 04:14:42,934 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:42" (1/1) ... [2023-11-19 04:14:42,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:42" (1/1) ... [2023-11-19 04:14:42,944 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:42" (1/1) ... [2023-11-19 04:14:42,948 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:42" (1/1) ... [2023-11-19 04:14:42,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:42" (1/1) ... [2023-11-19 04:14:42,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:42" (1/1) ... [2023-11-19 04:14:42,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:14:42,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:14:42,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:14:42,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:14:42,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:42" (1/1) ... [2023-11-19 04:14:42,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:14:43,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:14:43,039 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:14:43,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:14:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:14:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:14:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:14:43,112 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:14:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:14:43,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:14:43,197 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:14:43,199 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:14:45,724 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:14:45,732 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:14:45,732 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:14:45,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:45 BoogieIcfgContainer [2023-11-19 04:14:45,736 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:14:45,739 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:14:45,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:14:45,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:14:45,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:14:42" (1/3) ... [2023-11-19 04:14:45,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbbcbd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:45, skipping insertion in model container [2023-11-19 04:14:45,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:42" (2/3) ... [2023-11-19 04:14:45,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbbcbd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:45, skipping insertion in model container [2023-11-19 04:14:45,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:45" (3/3) ... [2023-11-19 04:14:45,746 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-48.i [2023-11-19 04:14:45,764 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:14:45,765 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:14:45,824 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:14:45,831 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;@4ef9d5dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:14:45,831 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:14:45,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 37 states have internal predecessors, (47), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 04:14:45,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-19 04:14:45,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:45,855 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:14:45,858 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:14:45,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:45,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1082007897, now seen corresponding path program 1 times [2023-11-19 04:14:45,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:14:45,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472448624] [2023-11-19 04:14:45,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:45,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:45,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:14:45,886 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:14:45,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:14:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:46,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:14:46,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:14:46,468 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-19 04:14:46,468 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:14:46,469 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:14:46,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472448624] [2023-11-19 04:14:46,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1472448624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:46,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:46,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:14:46,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103450883] [2023-11-19 04:14:46,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:46,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:14:46,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:14:46,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:14:46,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:14:46,516 INFO L87 Difference]: Start difference. First operand has 57 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 37 states have internal predecessors, (47), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 04:14:46,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:46,547 INFO L93 Difference]: Finished difference Result 107 states and 178 transitions. [2023-11-19 04:14:46,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:14:46,549 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 116 [2023-11-19 04:14:46,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:46,557 INFO L225 Difference]: With dead ends: 107 [2023-11-19 04:14:46,557 INFO L226 Difference]: Without dead ends: 53 [2023-11-19 04:14:46,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:14:46,565 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:46,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:14:46,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-19 04:14:46,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-19 04:14:46,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 04:14:46,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2023-11-19 04:14:46,614 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 116 [2023-11-19 04:14:46,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:46,615 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2023-11-19 04:14:46,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 04:14:46,615 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2023-11-19 04:14:46,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-19 04:14:46,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:46,619 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:14:46,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 04:14:46,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:46,831 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:14:46,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:46,832 INFO L85 PathProgramCache]: Analyzing trace with hash 505023597, now seen corresponding path program 1 times [2023-11-19 04:14:46,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:14:46,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068829908] [2023-11-19 04:14:46,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:46,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:46,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:14:46,836 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:14:46,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c7c100b-c445-46fc-a6e8-b84f5b04e310/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:14:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:47,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 04:14:47,437 INFO L285 TraceCheckSpWp]: Computing forward predicates...