./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-61.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-61.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70761ec11e58c10698e5aa0cf29d007b987b034e5642b1a07232bb0cab676aec --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:42:27,403 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:42:27,528 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:42:27,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:42:27,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:42:27,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:42:27,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:42:27,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:42:27,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:42:27,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:42:27,588 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:42:27,589 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:42:27,589 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:42:27,591 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:42:27,591 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:42:27,592 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:42:27,592 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:42:27,593 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:42:27,595 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:42:27,595 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:42:27,596 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:42:27,596 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:42:27,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:42:27,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:42:27,599 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:42:27,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:42:27,599 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:42:27,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:42:27,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:42:27,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:42:27,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:42:27,602 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:42:27,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:42:27,603 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:42:27,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:42:27,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:42:27,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:42:27,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:42:27,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:42:27,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:42:27,605 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:42:27,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:42:27,606 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:42:27,606 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:42:27,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:42:27,607 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_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70761ec11e58c10698e5aa0cf29d007b987b034e5642b1a07232bb0cab676aec [2023-11-12 00:42:27,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:42:27,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:42:27,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:42:27,915 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:42:27,916 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:42:27,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-61.i [2023-11-12 00:42:31,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:42:31,311 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:42:31,312 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-61.i [2023-11-12 00:42:31,325 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/data/0ac5fb337/232b68c1443d4b99b4cc1043c4390098/FLAG00b08609c [2023-11-12 00:42:31,338 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/data/0ac5fb337/232b68c1443d4b99b4cc1043c4390098 [2023-11-12 00:42:31,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:42:31,342 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:42:31,344 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:42:31,344 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:42:31,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:42:31,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:42:31" (1/1) ... [2023-11-12 00:42:31,358 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de46c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:31, skipping insertion in model container [2023-11-12 00:42:31,358 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:42:31" (1/1) ... [2023-11-12 00:42:31,391 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:42:31,558 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_83764b62-8815-442d-8a74-2c269bd87308/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-61.i[915,928] [2023-11-12 00:42:31,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:42:31,635 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:42:31,648 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_83764b62-8815-442d-8a74-2c269bd87308/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-61.i[915,928] [2023-11-12 00:42:31,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:42:31,697 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:42:31,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:31 WrapperNode [2023-11-12 00:42:31,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:42:31,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:42:31,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:42:31,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:42:31,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:31" (1/1) ... [2023-11-12 00:42:31,717 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:31" (1/1) ... [2023-11-12 00:42:31,760 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 164 [2023-11-12 00:42:31,760 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:42:31,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:42:31,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:42:31,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:42:31,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:31" (1/1) ... [2023-11-12 00:42:31,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:31" (1/1) ... [2023-11-12 00:42:31,775 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:31" (1/1) ... [2023-11-12 00:42:31,775 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:31" (1/1) ... [2023-11-12 00:42:31,785 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:31" (1/1) ... [2023-11-12 00:42:31,789 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:31" (1/1) ... [2023-11-12 00:42:31,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:31" (1/1) ... [2023-11-12 00:42:31,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:31" (1/1) ... [2023-11-12 00:42:31,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:42:31,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:42:31,799 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:42:31,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:42:31,800 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:31" (1/1) ... [2023-11-12 00:42:31,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:42:31,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:42:31,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:42:31,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:42:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:42:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:42:31,894 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:42:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:42:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:42:31,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:42:32,021 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:42:32,024 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:42:32,466 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:42:32,937 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:42:32,938 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:42:32,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:42:32 BoogieIcfgContainer [2023-11-12 00:42:32,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:42:32,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:42:32,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:42:32,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:42:32,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:42:31" (1/3) ... [2023-11-12 00:42:32,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d5b22c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:42:32, skipping insertion in model container [2023-11-12 00:42:32,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:31" (2/3) ... [2023-11-12 00:42:32,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d5b22c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:42:32, skipping insertion in model container [2023-11-12 00:42:32,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:42:32" (3/3) ... [2023-11-12 00:42:32,954 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-61.i [2023-11-12 00:42:32,974 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:42:32,975 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:42:33,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:42:33,040 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;@2e85bf79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:42:33,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:42:33,045 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 00:42:33,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-12 00:42:33,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:42:33,058 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:42:33,058 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:42:33,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:42:33,067 INFO L85 PathProgramCache]: Analyzing trace with hash -12865173, now seen corresponding path program 1 times [2023-11-12 00:42:33,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:42:33,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406211369] [2023-11-12 00:42:33,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:42:33,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:42:33,250 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:42:33,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1460092461] [2023-11-12 00:42:33,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:42:33,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:42:33,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:42:33,259 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:42:33,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:42:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:42:34,047 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:42:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:42:34,205 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:42:34,208 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:42:34,209 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:42:34,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:42:34,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:42:34,434 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:42:34,437 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:42:34,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:42:34 BoogieIcfgContainer [2023-11-12 00:42:34,524 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:42:34,525 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:42:34,525 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:42:34,525 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:42:34,526 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:42:32" (3/4) ... [2023-11-12 00:42:34,528 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:42:34,529 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:42:34,531 INFO L158 Benchmark]: Toolchain (without parser) took 3188.09ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 101.0MB in the beginning and 87.3MB in the end (delta: 13.7MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2023-11-12 00:42:34,531 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 146.8MB. Free memory was 93.2MB in the beginning and 93.0MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:42:34,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.93ms. Allocated memory is still 146.8MB. Free memory was 100.7MB in the beginning and 87.2MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:42:34,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.14ms. Allocated memory is still 146.8MB. Free memory was 87.2MB in the beginning and 84.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:42:34,533 INFO L158 Benchmark]: Boogie Preprocessor took 36.72ms. Allocated memory is still 146.8MB. Free memory was 84.5MB in the beginning and 82.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:42:34,534 INFO L158 Benchmark]: RCFGBuilder took 1142.20ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 82.7MB in the beginning and 128.2MB in the end (delta: -45.5MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-11-12 00:42:34,534 INFO L158 Benchmark]: TraceAbstraction took 1579.22ms. Allocated memory is still 192.9MB. Free memory was 127.2MB in the beginning and 87.3MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-12 00:42:34,535 INFO L158 Benchmark]: Witness Printer took 4.25ms. Allocated memory is still 192.9MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:42:34,545 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 146.8MB. Free memory was 93.2MB in the beginning and 93.0MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.93ms. Allocated memory is still 146.8MB. Free memory was 100.7MB in the beginning and 87.2MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.14ms. Allocated memory is still 146.8MB. Free memory was 87.2MB in the beginning and 84.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.72ms. Allocated memory is still 146.8MB. Free memory was 84.5MB in the beginning and 82.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1142.20ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 82.7MB in the beginning and 128.2MB in the end (delta: -45.5MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1579.22ms. Allocated memory is still 192.9MB. Free memory was 127.2MB in the beginning and 87.3MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 4.25ms. Allocated memory is still 192.9MB. Free memory is still 87.3MB. 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 129, overapproximation of bitwiseOr at line 59, overapproximation of someBinaryArithmeticDOUBLEoperation at line 55, overapproximation of someBinaryDOUBLEComparisonOperation at line 129. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 8.5; [L23] unsigned long int var_1_4 = 1; [L24] unsigned long int var_1_5 = 50; [L25] unsigned long int var_1_6 = 4; [L26] float var_1_7 = 15.8; [L27] float var_1_8 = 64.25; [L28] signed long int var_1_9 = -50; [L29] unsigned char var_1_13 = 1; [L30] unsigned long int var_1_14 = 3207304078; [L31] unsigned long int var_1_15 = 50; [L32] unsigned long int var_1_16 = 25; [L33] unsigned char var_1_17 = 1; [L34] unsigned char var_1_18 = 0; [L35] unsigned char var_1_19 = 0; [L36] unsigned short int var_1_20 = 1; [L37] unsigned long int var_1_21 = 50; [L38] signed char var_1_22 = -4; [L39] signed char var_1_23 = -10; [L40] signed long int last_1_var_1_9 = -50; [L133] isInitial = 1 [L134] FCALL initially() [L135] COND TRUE 1 [L136] CALL updateLastVariables() [L126] last_1_var_1_9 = var_1_9 [L136] RET updateLastVariables() [L137] CALL updateVariables() [L94] var_1_5 = __VERIFIER_nondet_ulong() [L95] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_6=4, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_6=4, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L96] CALL assume_abort_if_not(var_1_5 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=4, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_5 <= 4294967294) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=4, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L97] var_1_6 = __VERIFIER_nondet_ulong() [L98] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L99] CALL assume_abort_if_not(var_1_6 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_6 <= 4294967294) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L100] var_1_8 = __VERIFIER_nondet_float() [L101] 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, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L101] 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, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L102] var_1_14 = __VERIFIER_nondet_ulong() [L103] CALL assume_abort_if_not(var_1_14 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_14 >= 2147483647) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L104] CALL assume_abort_if_not(var_1_14 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_14 <= 4294967295) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L105] var_1_15 = __VERIFIER_nondet_ulong() [L106] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L107] CALL assume_abort_if_not(var_1_15 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_15 <= 2147483647) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L108] var_1_16 = __VERIFIER_nondet_ulong() [L109] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L110] CALL assume_abort_if_not(var_1_16 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_16 <= 2147483647) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L111] var_1_17 = __VERIFIER_nondet_uchar() [L112] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L113] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L114] var_1_18 = __VERIFIER_nondet_uchar() [L115] CALL assume_abort_if_not(var_1_18 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_18 >= 1) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L116] CALL assume_abort_if_not(var_1_18 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_18 <= 1) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L117] var_1_20 = __VERIFIER_nondet_ushort() [L118] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=2, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=2, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L119] CALL assume_abort_if_not(var_1_20 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=2, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not(var_1_20 <= 65535) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=2, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L120] CALL assume_abort_if_not(var_1_20 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=2, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(var_1_20 != 0) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=2, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L121] var_1_23 = __VERIFIER_nondet_char() [L122] CALL assume_abort_if_not(var_1_23 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=2, var_1_21=50, var_1_22=-4, var_1_23=-126, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not(var_1_23 >= -127) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=2, var_1_21=50, var_1_22=-4, var_1_23=-126, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L123] CALL assume_abort_if_not(var_1_23 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=2, var_1_21=50, var_1_22=-4, var_1_23=-126, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) [L123] RET assume_abort_if_not(var_1_23 <= 126) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=2, var_1_21=50, var_1_22=-4, var_1_23=-126, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L137] RET updateVariables() [L138] CALL step() [L44] signed long int stepLocal_0 = last_1_var_1_9; [L45] COND FALSE !(stepLocal_0 < last_1_var_1_9) [L48] var_1_21 = var_1_6 [L49] var_1_22 = var_1_23 [L50] unsigned long int stepLocal_4 = 4256310412u - 128u; [L51] COND FALSE !(var_1_4 >= stepLocal_4) [L54] COND FALSE !((var_1_21 / ((((64u) < 0 ) ? -(64u) : (64u)))) == var_1_4) [L57] signed long int stepLocal_3 = var_1_9; [L58] unsigned long int stepLocal_2 = (((var_1_21) > (var_1_5)) ? (var_1_21) : (var_1_5)); [L59] EXPR var_1_21 ^ 4u [L59] unsigned long int stepLocal_1 = var_1_21 ^ 4u; [L60] COND FALSE !(var_1_9 <= stepLocal_2) [L69] var_1_7 = var_1_8 [L71] COND FALSE !(var_1_21 >= (var_1_14 - ((((var_1_15) < (var_1_16)) ? (var_1_15) : (var_1_16))))) [L78] var_1_13 = var_1_18 [L80] signed long int stepLocal_5 = (var_1_22 / 2) / var_1_20; [L81] COND TRUE stepLocal_5 >= (~ 100) [L82] COND TRUE \read(var_1_13) [L83] var_1_19 = (var_1_17 && var_1_18) [L138] RET step() [L139] CALL, EXPR property() [L129] EXPR ((((var_1_21 / ((((64u) < 0 ) ? -(64u) : (64u)))) == var_1_4) ? (var_1_1 == ((double) (8.8 - 255.2))) : 1) && ((last_1_var_1_9 < last_1_var_1_9) ? (var_1_4 == ((unsigned long int) ((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) : 1)) && ((var_1_9 <= ((((var_1_21) > (var_1_5)) ? (var_1_21) : (var_1_5)))) ? ((var_1_9 < var_1_5) ? ((var_1_9 >= (var_1_21 ^ 4u)) ? (var_1_7 == ((float) var_1_8)) : 1) : (var_1_7 == ((float) var_1_8))) : (var_1_7 == ((float) var_1_8))) [L129] EXPR (var_1_9 <= ((((var_1_21) > (var_1_5)) ? (var_1_21) : (var_1_5)))) ? ((var_1_9 < var_1_5) ? ((var_1_9 >= (var_1_21 ^ 4u)) ? (var_1_7 == ((float) var_1_8)) : 1) : (var_1_7 == ((float) var_1_8))) : (var_1_7 == ((float) var_1_8)) [L129] EXPR ((((var_1_21 / ((((64u) < 0 ) ? -(64u) : (64u)))) == var_1_4) ? (var_1_1 == ((double) (8.8 - 255.2))) : 1) && ((last_1_var_1_9 < last_1_var_1_9) ? (var_1_4 == ((unsigned long int) ((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) : 1)) && ((var_1_9 <= ((((var_1_21) > (var_1_5)) ? (var_1_21) : (var_1_5)))) ? ((var_1_9 < var_1_5) ? ((var_1_9 >= (var_1_21 ^ 4u)) ? (var_1_7 == ((float) var_1_8)) : 1) : (var_1_7 == ((float) var_1_8))) : (var_1_7 == ((float) var_1_8))) [L129-L130] return (((((((((var_1_21 / ((((64u) < 0 ) ? -(64u) : (64u)))) == var_1_4) ? (var_1_1 == ((double) (8.8 - 255.2))) : 1) && ((last_1_var_1_9 < last_1_var_1_9) ? (var_1_4 == ((unsigned long int) ((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) : 1)) && ((var_1_9 <= ((((var_1_21) > (var_1_5)) ? (var_1_21) : (var_1_5)))) ? ((var_1_9 < var_1_5) ? ((var_1_9 >= (var_1_21 ^ 4u)) ? (var_1_7 == ((float) var_1_8)) : 1) : (var_1_7 == ((float) var_1_8))) : (var_1_7 == ((float) var_1_8)))) && ((var_1_4 >= (4256310412u - 128u)) ? (var_1_9 == ((signed long int) (((((var_1_22 + var_1_22) < 0 ) ? -(var_1_22 + var_1_22) : (var_1_22 + var_1_22))) + var_1_22))) : 1)) && ((var_1_21 >= (var_1_14 - ((((var_1_15) < (var_1_16)) ? (var_1_15) : (var_1_16))))) ? ((var_1_16 < var_1_9) ? (var_1_13 == ((unsigned char) var_1_17)) : (var_1_13 == ((unsigned char) var_1_17))) : (var_1_13 == ((unsigned char) var_1_18)))) && ((((var_1_22 / 2) / var_1_20) >= (~ 100)) ? (var_1_13 ? (var_1_19 == ((unsigned char) (var_1_17 && var_1_18))) : 1) : (var_1_17 ? (var_1_19 == ((unsigned char) var_1_18)) : (var_1_19 == ((unsigned char) var_1_18))))) && (var_1_21 == ((unsigned long int) var_1_6))) && (var_1_22 == ((signed char) var_1_23)) ; [L139] RET, EXPR property() [L139] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=17/2, var_1_20=2, var_1_21=0, var_1_22=-126, var_1_23=-126, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=2, var_1_8=2, var_1_9=-50] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483648, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=17/2, var_1_20=2, var_1_21=0, var_1_22=-126, var_1_23=-126, var_1_4=1, var_1_5=4294967245, var_1_6=0, var_1_7=2, var_1_8=2, var_1_9=-50] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 1, TraceHistogramMax: 20, 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=39occurred 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, 0.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 00:42:34,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-61.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70761ec11e58c10698e5aa0cf29d007b987b034e5642b1a07232bb0cab676aec --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:42:37,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:42:37,335 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:42:37,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:42:37,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:42:37,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:42:37,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:42:37,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:42:37,401 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:42:37,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:42:37,407 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:42:37,407 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:42:37,408 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:42:37,410 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:42:37,410 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:42:37,411 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:42:37,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:42:37,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:42:37,413 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:42:37,414 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:42:37,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:42:37,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:42:37,417 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:42:37,417 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:42:37,418 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:42:37,418 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:42:37,419 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:42:37,419 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:42:37,420 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:42:37,420 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:42:37,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:42:37,422 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:42:37,422 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:42:37,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:42:37,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:42:37,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:42:37,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:42:37,424 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:42:37,425 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:42:37,426 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:42:37,426 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:42:37,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:42:37,427 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_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70761ec11e58c10698e5aa0cf29d007b987b034e5642b1a07232bb0cab676aec [2023-11-12 00:42:37,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:42:37,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:42:37,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:42:37,912 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:42:37,913 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:42:37,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-61.i [2023-11-12 00:42:41,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:42:41,453 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:42:41,455 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-61.i [2023-11-12 00:42:41,468 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/data/91a7c09b1/e5e3d1a896984751999313affda2499b/FLAG43ff120c5 [2023-11-12 00:42:41,483 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/data/91a7c09b1/e5e3d1a896984751999313affda2499b [2023-11-12 00:42:41,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:42:41,488 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:42:41,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:42:41,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:42:41,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:42:41,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:42:41" (1/1) ... [2023-11-12 00:42:41,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c71cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:41, skipping insertion in model container [2023-11-12 00:42:41,497 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:42:41" (1/1) ... [2023-11-12 00:42:41,530 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:42:41,730 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_83764b62-8815-442d-8a74-2c269bd87308/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-61.i[915,928] [2023-11-12 00:42:41,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:42:41,846 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:42:41,870 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_83764b62-8815-442d-8a74-2c269bd87308/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-61.i[915,928] [2023-11-12 00:42:41,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:42:41,935 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:42:41,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:41 WrapperNode [2023-11-12 00:42:41,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:42:41,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:42:41,938 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:42:41,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:42:41,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:41" (1/1) ... [2023-11-12 00:42:41,957 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:41" (1/1) ... [2023-11-12 00:42:42,004 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2023-11-12 00:42:42,006 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:42:42,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:42:42,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:42:42,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:42:42,018 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:41" (1/1) ... [2023-11-12 00:42:42,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:41" (1/1) ... [2023-11-12 00:42:42,023 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:41" (1/1) ... [2023-11-12 00:42:42,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:41" (1/1) ... [2023-11-12 00:42:42,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:41" (1/1) ... [2023-11-12 00:42:42,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:41" (1/1) ... [2023-11-12 00:42:42,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:41" (1/1) ... [2023-11-12 00:42:42,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:41" (1/1) ... [2023-11-12 00:42:42,071 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:42:42,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:42:42,072 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:42:42,072 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:42:42,073 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:41" (1/1) ... [2023-11-12 00:42:42,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:42:42,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:42:42,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:42:42,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:42:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:42:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:42:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:42:42,162 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:42:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:42:42,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:42:42,297 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:42:42,299 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:42:43,120 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:42:43,126 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:42:43,127 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:42:43,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:42:43 BoogieIcfgContainer [2023-11-12 00:42:43,129 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:42:43,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:42:43,153 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:42:43,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:42:43,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:42:41" (1/3) ... [2023-11-12 00:42:43,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c2e94c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:42:43, skipping insertion in model container [2023-11-12 00:42:43,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:41" (2/3) ... [2023-11-12 00:42:43,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c2e94c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:42:43, skipping insertion in model container [2023-11-12 00:42:43,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:42:43" (3/3) ... [2023-11-12 00:42:43,160 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-61.i [2023-11-12 00:42:43,177 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:42:43,177 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:42:43,227 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:42:43,234 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;@e77c4f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:42:43,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:42:43,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 40 states have (on average 1.4) internal successors, (56), 41 states have internal predecessors, (56), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 00:42:43,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-12 00:42:43,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:42:43,255 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:42:43,256 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:42:43,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:42:43,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1292719543, now seen corresponding path program 1 times [2023-11-12 00:42:43,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:42:43,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99439944] [2023-11-12 00:42:43,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:42:43,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:42:43,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:42:43,288 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:42:43,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 00:42:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:42:43,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:42:43,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:42:43,769 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2023-11-12 00:42:43,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:42:43,771 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:42:43,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99439944] [2023-11-12 00:42:43,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99439944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:42:43,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:42:43,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:42:43,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043379312] [2023-11-12 00:42:43,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:42:43,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:42:43,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:42:43,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:42:43,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:42:43,823 INFO L87 Difference]: Start difference. First operand has 63 states, 40 states have (on average 1.4) internal successors, (56), 41 states have internal predecessors, (56), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 00:42:43,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:42:43,870 INFO L93 Difference]: Finished difference Result 119 states and 206 transitions. [2023-11-12 00:42:43,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:42:43,872 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 129 [2023-11-12 00:42:43,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:42:43,881 INFO L225 Difference]: With dead ends: 119 [2023-11-12 00:42:43,881 INFO L226 Difference]: Without dead ends: 59 [2023-11-12 00:42:43,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:42:43,890 INFO L413 NwaCegarLoop]: 89 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, 89 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:42:43,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:42:43,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-12 00:42:43,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-12 00:42:43,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 37 states have internal predecessors, (49), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 00:42:43,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 89 transitions. [2023-11-12 00:42:43,944 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 89 transitions. Word has length 129 [2023-11-12 00:42:43,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:42:43,945 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 89 transitions. [2023-11-12 00:42:43,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 00:42:43,945 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 89 transitions. [2023-11-12 00:42:43,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-12 00:42:43,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:42:43,950 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:42:43,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:42:44,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:42:44,168 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:42:44,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:42:44,169 INFO L85 PathProgramCache]: Analyzing trace with hash 283948599, now seen corresponding path program 1 times [2023-11-12 00:42:44,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:42:44,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930596462] [2023-11-12 00:42:44,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:42:44,171 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:42:44,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:42:44,172 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:42:44,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 00:42:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:42:44,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:42:44,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:42:45,171 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-12 00:42:45,171 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:42:45,171 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:42:45,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930596462] [2023-11-12 00:42:45,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930596462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:42:45,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:42:45,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:42:45,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944990876] [2023-11-12 00:42:45,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:42:45,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:42:45,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:42:45,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:42:45,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:42:45,177 INFO L87 Difference]: Start difference. First operand 59 states and 89 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 00:42:46,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:42:46,041 INFO L93 Difference]: Finished difference Result 189 states and 288 transitions. [2023-11-12 00:42:46,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:42:46,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 129 [2023-11-12 00:42:46,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:42:46,062 INFO L225 Difference]: With dead ends: 189 [2023-11-12 00:42:46,062 INFO L226 Difference]: Without dead ends: 133 [2023-11-12 00:42:46,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:42:46,065 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 76 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:42:46,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 308 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-12 00:42:46,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-12 00:42:46,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 113. [2023-11-12 00:42:46,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 70 states have internal predecessors, (93), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-12 00:42:46,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 173 transitions. [2023-11-12 00:42:46,105 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 173 transitions. Word has length 129 [2023-11-12 00:42:46,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:42:46,106 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 173 transitions. [2023-11-12 00:42:46,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 00:42:46,107 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 173 transitions. [2023-11-12 00:42:46,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-12 00:42:46,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:42:46,110 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:42:46,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:42:46,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:42:46,328 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:42:46,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:42:46,329 INFO L85 PathProgramCache]: Analyzing trace with hash -727168651, now seen corresponding path program 1 times [2023-11-12 00:42:46,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:42:46,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470238710] [2023-11-12 00:42:46,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:42:46,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:42:46,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:42:46,332 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:42:46,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-12 00:42:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:42:46,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:42:46,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:42:47,071 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-12 00:42:47,078 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:42:47,078 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:42:47,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470238710] [2023-11-12 00:42:47,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470238710] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:42:47,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:42:47,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:42:47,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517942359] [2023-11-12 00:42:47,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:42:47,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:42:47,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:42:47,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:42:47,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:42:47,086 INFO L87 Difference]: Start difference. First operand 113 states and 173 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 00:42:47,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:42:47,519 INFO L93 Difference]: Finished difference Result 115 states and 174 transitions. [2023-11-12 00:42:47,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:42:47,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 129 [2023-11-12 00:42:47,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:42:47,536 INFO L225 Difference]: With dead ends: 115 [2023-11-12 00:42:47,537 INFO L226 Difference]: Without dead ends: 59 [2023-11-12 00:42:47,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:42:47,539 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 27 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:42:47,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 105 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 00:42:47,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-12 00:42:47,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-12 00:42:47,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 37 states have internal predecessors, (47), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 00:42:47,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 87 transitions. [2023-11-12 00:42:47,563 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 87 transitions. Word has length 129 [2023-11-12 00:42:47,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:42:47,564 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 87 transitions. [2023-11-12 00:42:47,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 00:42:47,565 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 87 transitions. [2023-11-12 00:42:47,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-12 00:42:47,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:42:47,569 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:42:47,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:42:47,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:42:47,784 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:42:47,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:42:47,785 INFO L85 PathProgramCache]: Analyzing trace with hash -469003213, now seen corresponding path program 1 times [2023-11-12 00:42:47,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:42:47,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299970079] [2023-11-12 00:42:47,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:42:47,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:42:47,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:42:47,788 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:42:47,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83764b62-8815-442d-8a74-2c269bd87308/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-12 00:42:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:42:48,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-12 00:42:48,098 INFO L285 TraceCheckSpWp]: Computing forward predicates...