./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 087f53d60a69a89d74f854e09dec49f6677e36a3379c1213b60b4862ed153ba1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:24:03,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:24:03,673 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:24:03,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:24:03,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:24:03,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:24:03,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:24:03,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:24:03,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:24:03,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:24:03,732 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:24:03,732 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:24:03,732 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:24:03,734 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:24:03,735 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:24:03,735 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:24:03,736 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:24:03,736 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:24:03,737 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:24:03,737 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:24:03,737 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:24:03,738 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:24:03,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:24:03,740 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:24:03,740 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:24:03,741 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:24:03,741 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:24:03,741 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:24:03,742 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:24:03,742 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:24:03,743 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:24:03,744 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:24:03,744 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:24:03,744 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:24:03,745 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:24:03,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:24:03,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:03,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:24:03,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:24:03,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:24:03,746 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:24:03,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:24:03,747 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:24:03,747 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:24:03,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:24:03,748 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_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 087f53d60a69a89d74f854e09dec49f6677e36a3379c1213b60b4862ed153ba1 [2023-11-19 05:24:04,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:24:04,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:24:04,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:24:04,109 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:24:04,110 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:24:04,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i [2023-11-19 05:24:07,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:24:07,598 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:24:07,598 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i [2023-11-19 05:24:07,607 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/data/89c76fbf9/6ebdf1010c2146419350bf95377e4cd7/FLAGc6fb916c6 [2023-11-19 05:24:07,621 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/data/89c76fbf9/6ebdf1010c2146419350bf95377e4cd7 [2023-11-19 05:24:07,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:24:07,626 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:24:07,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:07,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:24:07,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:24:07,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:07" (1/1) ... [2023-11-19 05:24:07,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18cc92c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:07, skipping insertion in model container [2023-11-19 05:24:07,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:07" (1/1) ... [2023-11-19 05:24:07,661 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:24:07,891 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_2e9e1492-98ee-4162-877c-6a302f74d944/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i[914,927] [2023-11-19 05:24:07,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:07,931 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:24:07,944 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_2e9e1492-98ee-4162-877c-6a302f74d944/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i[914,927] [2023-11-19 05:24:07,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:07,974 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:24:07,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:07 WrapperNode [2023-11-19 05:24:07,975 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:07,976 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:07,976 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:24:07,976 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:24:07,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:07" (1/1) ... [2023-11-19 05:24:07,991 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:07" (1/1) ... [2023-11-19 05:24:08,023 INFO L138 Inliner]: procedures = 26, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 68 [2023-11-19 05:24:08,024 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:08,025 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:24:08,025 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:24:08,025 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:24:08,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:07" (1/1) ... [2023-11-19 05:24:08,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:07" (1/1) ... [2023-11-19 05:24:08,040 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:07" (1/1) ... [2023-11-19 05:24:08,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:07" (1/1) ... [2023-11-19 05:24:08,046 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:07" (1/1) ... [2023-11-19 05:24:08,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:07" (1/1) ... [2023-11-19 05:24:08,052 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:07" (1/1) ... [2023-11-19 05:24:08,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:07" (1/1) ... [2023-11-19 05:24:08,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:24:08,075 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:24:08,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:24:08,076 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:24:08,077 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:07" (1/1) ... [2023-11-19 05:24:08,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:08,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:08,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:24:08,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:24:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:24:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:24:08,139 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:24:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:24:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:24:08,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:24:08,205 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:24:08,207 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:24:08,383 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:24:08,523 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:24:08,524 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:24:08,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:08 BoogieIcfgContainer [2023-11-19 05:24:08,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:24:08,538 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:24:08,538 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:24:08,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:24:08,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:24:07" (1/3) ... [2023-11-19 05:24:08,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6600f7f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:08, skipping insertion in model container [2023-11-19 05:24:08,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:07" (2/3) ... [2023-11-19 05:24:08,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6600f7f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:08, skipping insertion in model container [2023-11-19 05:24:08,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:08" (3/3) ... [2023-11-19 05:24:08,544 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-4.i [2023-11-19 05:24:08,565 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:24:08,566 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:24:08,619 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:24:08,627 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;@28174527, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:24:08,628 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:24:08,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 05:24:08,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 05:24:08,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:08,645 INFO L195 NwaCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:24:08,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:08,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:08,653 INFO L85 PathProgramCache]: Analyzing trace with hash -364586101, now seen corresponding path program 1 times [2023-11-19 05:24:08,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:24:08,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565729655] [2023-11-19 05:24:08,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:08,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:24:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:24:08,855 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:24:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:24:08,992 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:24:08,994 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:24:08,996 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:24:08,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:24:09,004 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:24:09,017 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:24:09,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:24:09 BoogieIcfgContainer [2023-11-19 05:24:09,053 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:24:09,054 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:24:09,054 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:24:09,054 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:24:09,055 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:08" (3/4) ... [2023-11-19 05:24:09,057 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:24:09,059 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:24:09,060 INFO L158 Benchmark]: Toolchain (without parser) took 1433.78ms. Allocated memory is still 146.8MB. Free memory was 107.7MB in the beginning and 72.4MB in the end (delta: 35.3MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2023-11-19 05:24:09,060 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:24:09,061 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.72ms. Allocated memory is still 146.8MB. Free memory was 107.6MB in the beginning and 110.7MB in the end (delta: -3.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 05:24:09,062 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.33ms. Allocated memory is still 146.8MB. Free memory was 110.7MB in the beginning and 108.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:24:09,062 INFO L158 Benchmark]: Boogie Preprocessor took 49.15ms. Allocated memory is still 146.8MB. Free memory was 108.6MB in the beginning and 107.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:24:09,063 INFO L158 Benchmark]: RCFGBuilder took 460.03ms. Allocated memory is still 146.8MB. Free memory was 107.5MB in the beginning and 92.5MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 05:24:09,064 INFO L158 Benchmark]: TraceAbstraction took 515.43ms. Allocated memory is still 146.8MB. Free memory was 91.9MB in the beginning and 72.4MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 05:24:09,064 INFO L158 Benchmark]: Witness Printer took 4.93ms. Allocated memory is still 146.8MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:24:09,068 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.72ms. Allocated memory is still 146.8MB. Free memory was 107.6MB in the beginning and 110.7MB in the end (delta: -3.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.33ms. Allocated memory is still 146.8MB. Free memory was 110.7MB in the beginning and 108.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.15ms. Allocated memory is still 146.8MB. Free memory was 108.6MB in the beginning and 107.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 460.03ms. Allocated memory is still 146.8MB. Free memory was 107.5MB in the beginning and 92.5MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 515.43ms. Allocated memory is still 146.8MB. Free memory was 91.9MB in the beginning and 72.4MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.93ms. Allocated memory is still 146.8MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 56. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -16; [L23] signed short int var_1_2 = 16; [L24] signed short int var_1_3 = 25; [L25] signed long int var_1_4 = -32; [L26] unsigned char var_1_5 = 1; [L27] float var_1_6 = 0.6599999999999999; [L28] float var_1_7 = 256.6; [L60] isInitial = 1 [L61] FCALL initially() [L62] COND TRUE 1 [L63] FCALL updateLastVariables() [L64] CALL updateVariables() [L41] var_1_2 = __VERIFIER_nondet_short() [L42] CALL assume_abort_if_not(var_1_2 >= -32768) VAL [\old(cond)=1, isInitial=1, var_1_1=-16, var_1_2=-32768, var_1_3=25, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L20] COND FALSE !(!cond) [L42] RET assume_abort_if_not(var_1_2 >= -32768) VAL [isInitial=1, var_1_1=-16, var_1_2=-32768, var_1_3=25, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L43] CALL assume_abort_if_not(var_1_2 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=-16, var_1_2=-32768, var_1_3=25, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L20] COND FALSE !(!cond) [L43] RET assume_abort_if_not(var_1_2 <= 32767) VAL [isInitial=1, var_1_1=-16, var_1_2=-32768, var_1_3=25, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L44] var_1_3 = __VERIFIER_nondet_short() [L45] CALL assume_abort_if_not(var_1_3 >= -32768) VAL [\old(cond)=1, isInitial=1, var_1_1=-16, var_1_2=-32768, var_1_3=-32719, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L20] COND FALSE !(!cond) [L45] RET assume_abort_if_not(var_1_3 >= -32768) VAL [isInitial=1, var_1_1=-16, var_1_2=-32768, var_1_3=-32719, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L46] CALL assume_abort_if_not(var_1_3 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=-16, var_1_2=-32768, var_1_3=-32719, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L20] COND FALSE !(!cond) [L46] RET assume_abort_if_not(var_1_3 <= 32767) VAL [isInitial=1, var_1_1=-16, var_1_2=-32768, var_1_3=-32719, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L47] var_1_4 = __VERIFIER_nondet_long() [L48] CALL assume_abort_if_not(var_1_4 >= -2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=-16, var_1_2=-32768, var_1_3=-32719, var_1_4=-2147483647, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L20] COND FALSE !(!cond) [L48] RET assume_abort_if_not(var_1_4 >= -2147483647) VAL [isInitial=1, var_1_1=-16, var_1_2=-32768, var_1_3=-32719, var_1_4=-2147483647, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L49] CALL assume_abort_if_not(var_1_4 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_1=-16, var_1_2=-32768, var_1_3=-32719, var_1_4=-2147483647, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L20] COND FALSE !(!cond) [L49] RET assume_abort_if_not(var_1_4 <= 2147483646) VAL [isInitial=1, var_1_1=-16, var_1_2=-32768, var_1_3=-32719, var_1_4=-2147483647, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L50] var_1_7 = __VERIFIER_nondet_float() [L51] CALL assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=-16, var_1_2=-32768, var_1_3=-32719, var_1_4=-2147483647, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=261] [L20] COND FALSE !(!cond) [L51] RET assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=-16, var_1_2=-32768, var_1_3=-32719, var_1_4=-2147483647, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=261] [L64] RET updateVariables() [L65] CALL step() [L32] COND TRUE var_1_2 <= var_1_3 [L33] var_1_1 = ((((var_1_2) < ((var_1_3 + -50))) ? (var_1_2) : ((var_1_3 + -50)))) [L37] var_1_5 = 0 [L38] var_1_6 = var_1_7 [L65] RET step() [L66] CALL, EXPR property() [L56-L57] return (((var_1_2 <= var_1_3) ? (var_1_1 == ((signed long int) ((((var_1_2) < ((var_1_3 + -50))) ? (var_1_2) : ((var_1_3 + -50)))))) : (var_1_1 == ((signed long int) ((((var_1_4) > (((((var_1_3) < (var_1_2)) ? (var_1_3) : (var_1_2))))) ? (var_1_4) : (((((var_1_3) < (var_1_2)) ? (var_1_3) : (var_1_2))))))))) && (var_1_5 == ((unsigned char) 0))) && (var_1_6 == ((float) var_1_7)) ; [L66] RET, EXPR property() [L66] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=-32769, var_1_2=-32768, var_1_3=-32719, var_1_4=-2147483647, var_1_5=0, var_1_6=261, var_1_7=261] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=-32769, var_1_2=-32768, var_1_3=-32719, var_1_4=-2147483647, var_1_5=0, var_1_6=261, var_1_7=261] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 05:24:09,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 087f53d60a69a89d74f854e09dec49f6677e36a3379c1213b60b4862ed153ba1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:24:11,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:24:11,923 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:24:11,929 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:24:11,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:24:11,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:24:11,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:24:11,957 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:24:11,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:24:11,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:24:11,959 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:24:11,959 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:24:11,960 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:24:11,960 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:24:11,961 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:24:11,961 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:24:11,962 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:24:11,963 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:24:11,963 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:24:11,964 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:24:11,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:24:11,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:24:11,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:24:11,965 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:24:11,966 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:24:11,966 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:24:11,967 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:24:11,967 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:24:11,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:24:11,968 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:24:11,969 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:24:11,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:24:11,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:24:11,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:11,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:24:11,971 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:24:11,971 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:24:11,972 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:24:11,972 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:24:11,973 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:24:11,973 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:24:11,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:24:11,974 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_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 087f53d60a69a89d74f854e09dec49f6677e36a3379c1213b60b4862ed153ba1 [2023-11-19 05:24:12,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:24:12,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:24:12,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:24:12,387 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:24:12,388 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:24:12,390 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i [2023-11-19 05:24:15,781 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:24:16,076 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:24:16,078 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i [2023-11-19 05:24:16,092 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/data/0b4234d13/5c4bd552fbe2445da761456758230689/FLAG8324d8d8f [2023-11-19 05:24:16,114 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/data/0b4234d13/5c4bd552fbe2445da761456758230689 [2023-11-19 05:24:16,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:24:16,124 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:24:16,127 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:16,127 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:24:16,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:24:16,134 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:16" (1/1) ... [2023-11-19 05:24:16,135 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f9c9854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:16, skipping insertion in model container [2023-11-19 05:24:16,136 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:16" (1/1) ... [2023-11-19 05:24:16,173 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:24:16,391 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_2e9e1492-98ee-4162-877c-6a302f74d944/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i[914,927] [2023-11-19 05:24:16,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:16,477 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:24:16,495 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_2e9e1492-98ee-4162-877c-6a302f74d944/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i[914,927] [2023-11-19 05:24:16,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:16,550 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:24:16,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:16 WrapperNode [2023-11-19 05:24:16,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:16,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:16,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:24:16,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:24:16,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:16" (1/1) ... [2023-11-19 05:24:16,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:16" (1/1) ... [2023-11-19 05:24:16,621 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 65 [2023-11-19 05:24:16,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:16,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:24:16,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:24:16,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:24:16,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:16" (1/1) ... [2023-11-19 05:24:16,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:16" (1/1) ... [2023-11-19 05:24:16,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:16" (1/1) ... [2023-11-19 05:24:16,644 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:16" (1/1) ... [2023-11-19 05:24:16,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:16" (1/1) ... [2023-11-19 05:24:16,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:16" (1/1) ... [2023-11-19 05:24:16,672 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:16" (1/1) ... [2023-11-19 05:24:16,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:16" (1/1) ... [2023-11-19 05:24:16,677 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:24:16,678 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:24:16,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:24:16,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:24:16,680 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:16" (1/1) ... [2023-11-19 05:24:16,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:16,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:16,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:24:16,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:24:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:24:16,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:24:16,774 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:24:16,774 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:24:16,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:24:16,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:24:16,866 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:24:16,868 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:24:17,121 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:24:17,134 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:24:17,134 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:24:17,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:17 BoogieIcfgContainer [2023-11-19 05:24:17,138 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:24:17,140 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:24:17,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:24:17,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:24:17,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:24:16" (1/3) ... [2023-11-19 05:24:17,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450995fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:17, skipping insertion in model container [2023-11-19 05:24:17,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:16" (2/3) ... [2023-11-19 05:24:17,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450995fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:17, skipping insertion in model container [2023-11-19 05:24:17,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:17" (3/3) ... [2023-11-19 05:24:17,151 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-4.i [2023-11-19 05:24:17,173 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:24:17,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:24:17,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:24:17,256 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;@1d2a7134, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:24:17,256 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:24:17,261 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 05:24:17,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 05:24:17,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:17,275 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:24:17,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:17,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:17,286 INFO L85 PathProgramCache]: Analyzing trace with hash 2083022097, now seen corresponding path program 1 times [2023-11-19 05:24:17,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:17,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387583237] [2023-11-19 05:24:17,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:17,311 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:24:17,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:17,314 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:24:17,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 05:24:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:17,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:24:17,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 05:24:17,560 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:24:17,561 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:24:17,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387583237] [2023-11-19 05:24:17,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387583237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:17,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:17,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:24:17,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825498243] [2023-11-19 05:24:17,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:17,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:24:17,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:24:17,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:24:17,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:24:17,602 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 05:24:17,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:17,626 INFO L93 Difference]: Finished difference Result 57 states and 85 transitions. [2023-11-19 05:24:17,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:24:17,629 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2023-11-19 05:24:17,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:17,636 INFO L225 Difference]: With dead ends: 57 [2023-11-19 05:24:17,636 INFO L226 Difference]: Without dead ends: 28 [2023-11-19 05:24:17,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:24:17,644 INFO L413 NwaCegarLoop]: 35 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, 35 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:17,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:24:17,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-19 05:24:17,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-19 05:24:17,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 05:24:17,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2023-11-19 05:24:17,686 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 50 [2023-11-19 05:24:17,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:17,687 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2023-11-19 05:24:17,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 05:24:17,688 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2023-11-19 05:24:17,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 05:24:17,690 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:17,691 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:24:17,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:24:17,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:24:17,911 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:17,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:17,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1362863631, now seen corresponding path program 1 times [2023-11-19 05:24:17,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:17,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370226423] [2023-11-19 05:24:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:17,914 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:24:17,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:17,949 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:24:17,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 05:24:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:18,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 05:24:18,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:32,041 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-19 05:24:32,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:24:32,042 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:24:32,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370226423] [2023-11-19 05:24:32,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370226423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:32,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:32,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 05:24:32,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31590995] [2023-11-19 05:24:32,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:32,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:24:32,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:24:32,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:24:32,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:24:32,047 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-19 05:24:34,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:34,367 INFO L93 Difference]: Finished difference Result 59 states and 73 transitions. [2023-11-19 05:24:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 05:24:34,368 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 50 [2023-11-19 05:24:34,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:34,370 INFO L225 Difference]: With dead ends: 59 [2023-11-19 05:24:34,370 INFO L226 Difference]: Without dead ends: 57 [2023-11-19 05:24:34,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-11-19 05:24:34,373 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 50 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:34,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 170 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-19 05:24:34,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-19 05:24:34,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 36. [2023-11-19 05:24:34,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 05:24:34,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2023-11-19 05:24:34,388 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 50 [2023-11-19 05:24:34,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:34,389 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2023-11-19 05:24:34,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-19 05:24:34,390 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2023-11-19 05:24:34,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 05:24:34,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:34,392 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:24:34,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 05:24:34,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:24:34,601 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:34,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:34,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1305605329, now seen corresponding path program 1 times [2023-11-19 05:24:34,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:34,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333693995] [2023-11-19 05:24:34,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:34,603 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:24:34,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:34,604 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:24:34,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 05:24:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:34,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 05:24:34,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:45,002 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-19 05:24:45,003 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:24:45,003 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:24:45,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333693995] [2023-11-19 05:24:45,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333693995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:45,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:45,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 05:24:45,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681164703] [2023-11-19 05:24:45,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:45,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:24:45,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:24:45,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:24:45,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:24:45,007 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-19 05:24:47,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:47,004 INFO L93 Difference]: Finished difference Result 57 states and 71 transitions. [2023-11-19 05:24:47,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 05:24:47,006 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 50 [2023-11-19 05:24:47,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:47,007 INFO L225 Difference]: With dead ends: 57 [2023-11-19 05:24:47,007 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 05:24:47,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-11-19 05:24:47,010 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 52 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:47,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 159 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 05:24:47,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 05:24:47,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 05:24:47,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:24:47,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 05:24:47,014 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2023-11-19 05:24:47,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:47,014 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 05:24:47,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-19 05:24:47,015 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 05:24:47,015 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 05:24:47,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:24:47,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-19 05:24:47,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:24:47,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 05:24:48,381 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 39) no Hoare annotation was computed. [2023-11-19 05:24:48,381 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-19 05:24:48,381 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-19 05:24:48,382 INFO L895 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_7~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_7~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_7~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_7~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))))) [2023-11-19 05:24:48,382 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-19 05:24:48,382 INFO L895 garLoopResultBuilder]: At program point L48-1(line 48) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_7~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_7~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_7~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_7~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))))) [2023-11-19 05:24:48,383 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 59 70) no Hoare annotation was computed. [2023-11-19 05:24:48,383 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 36) no Hoare annotation was computed. [2023-11-19 05:24:48,383 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 05:24:48,383 INFO L899 garLoopResultBuilder]: For program point L32-2(lines 32 36) no Hoare annotation was computed. [2023-11-19 05:24:48,383 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 05:24:48,384 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-19 05:24:48,384 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 54) no Hoare annotation was computed. [2023-11-19 05:24:48,384 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-11-19 05:24:48,384 INFO L899 garLoopResultBuilder]: For program point property_returnLabel#1(lines 55 58) no Hoare annotation was computed. [2023-11-19 05:24:48,385 INFO L895 garLoopResultBuilder]: At program point L45(line 45) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_7~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_7~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_7~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_7~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))))) [2023-11-19 05:24:48,385 INFO L895 garLoopResultBuilder]: At program point L45-1(line 45) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_7~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_7~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_7~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_7~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))))) [2023-11-19 05:24:48,385 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 05:24:48,385 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 30) no Hoare annotation was computed. [2023-11-19 05:24:48,386 INFO L895 garLoopResultBuilder]: At program point L62-2(lines 62 68) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_7~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_7~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_7~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_7~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))))) [2023-11-19 05:24:48,386 INFO L899 garLoopResultBuilder]: For program point L62-3(lines 62 68) no Hoare annotation was computed. [2023-11-19 05:24:48,386 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-11-19 05:24:48,386 INFO L895 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_7~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_7~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_7~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_7~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))))) [2023-11-19 05:24:48,387 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 05:24:48,387 INFO L895 garLoopResultBuilder]: At program point L42-1(line 42) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_7~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_7~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_7~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_7~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))))) [2023-11-19 05:24:48,387 INFO L902 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: true [2023-11-19 05:24:48,387 INFO L899 garLoopResultBuilder]: For program point L51-1(lines 40 52) no Hoare annotation was computed. [2023-11-19 05:24:48,388 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2023-11-19 05:24:48,388 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-19 05:24:48,388 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-19 05:24:48,388 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-19 05:24:48,388 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-19 05:24:48,392 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 05:24:48,394 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:24:48,403 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.leq~32(~var_1_7~0, ~to_fp~32(currentRoundingMode, 9.2233720368547656E18)) && ~fp.geq~32(~var_1_7~0, ~to_fp~32(currentRoundingMode, 1/100000000000000000000))) could not be translated [2023-11-19 05:24:48,404 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.geq~32(~var_1_7~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 9.2233720368547656E18))) && ~fp.leq~32(~var_1_7~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1/100000000000000000000)))) could not be translated [2023-11-19 05:24:48,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:24:48 BoogieIcfgContainer [2023-11-19 05:24:48,405 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:24:48,406 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:24:48,406 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:24:48,406 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:24:48,407 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:17" (3/4) ... [2023-11-19 05:24:48,409 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 05:24:48,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 05:24:48,417 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-19 05:24:48,418 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 05:24:48,418 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 05:24:48,418 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:24:48,508 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:24:48,509 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 05:24:48,509 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:24:48,510 INFO L158 Benchmark]: Toolchain (without parser) took 32386.54ms. Allocated memory was 90.2MB in the beginning and 541.1MB in the end (delta: 450.9MB). Free memory was 65.9MB in the beginning and 328.0MB in the end (delta: -262.2MB). Peak memory consumption was 189.5MB. Max. memory is 16.1GB. [2023-11-19 05:24:48,510 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 65.0MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:24:48,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.50ms. Allocated memory is still 90.2MB. Free memory was 65.6MB in the beginning and 53.8MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:24:48,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.27ms. Allocated memory is still 90.2MB. Free memory was 53.8MB in the beginning and 51.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:24:48,512 INFO L158 Benchmark]: Boogie Preprocessor took 54.60ms. Allocated memory is still 90.2MB. Free memory was 51.9MB in the beginning and 50.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:24:48,512 INFO L158 Benchmark]: RCFGBuilder took 459.61ms. Allocated memory is still 90.2MB. Free memory was 50.4MB in the beginning and 62.0MB in the end (delta: -11.6MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2023-11-19 05:24:48,513 INFO L158 Benchmark]: TraceAbstraction took 31264.98ms. Allocated memory was 90.2MB in the beginning and 541.1MB in the end (delta: 450.9MB). Free memory was 61.0MB in the beginning and 333.3MB in the end (delta: -272.3MB). Peak memory consumption was 179.1MB. Max. memory is 16.1GB. [2023-11-19 05:24:48,513 INFO L158 Benchmark]: Witness Printer took 103.45ms. Allocated memory is still 541.1MB. Free memory was 333.3MB in the beginning and 328.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:24:48,515 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 65.0MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 424.50ms. Allocated memory is still 90.2MB. Free memory was 65.6MB in the beginning and 53.8MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.27ms. Allocated memory is still 90.2MB. Free memory was 53.8MB in the beginning and 51.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.60ms. Allocated memory is still 90.2MB. Free memory was 51.9MB in the beginning and 50.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 459.61ms. Allocated memory is still 90.2MB. Free memory was 50.4MB in the beginning and 62.0MB in the end (delta: -11.6MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * TraceAbstraction took 31264.98ms. Allocated memory was 90.2MB in the beginning and 541.1MB in the end (delta: 450.9MB). Free memory was 61.0MB in the beginning and 333.3MB in the end (delta: -272.3MB). Peak memory consumption was 179.1MB. Max. memory is 16.1GB. * Witness Printer took 103.45ms. Allocated memory is still 541.1MB. Free memory was 333.3MB in the beginning and 328.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.leq~32(~var_1_7~0, ~to_fp~32(currentRoundingMode, 9.2233720368547656E18)) && ~fp.geq~32(~var_1_7~0, ~to_fp~32(currentRoundingMode, 1/100000000000000000000))) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.geq~32(~var_1_7~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 9.2233720368547656E18))) && ~fp.leq~32(~var_1_7~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1/100000000000000000000)))) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 31.2s, OverallIterations: 3, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 364 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 254 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 404 IncrementalHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 110 mSDtfsCounter, 404 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=2, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 21 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 29 PreInvPairs, 45 NumberOfFragments, 191 HoareAnnotationTreeSize, 29 FomulaSimplifications, 1216 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 802 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 24.2s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 147 ConstructedInterpolants, 8 QuantifiedInterpolants, 511 SizeOfPredicates, 24 NumberOfNonLiveVariables, 264 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 252/252 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-19 05:24:48,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9e1492-98ee-4162-877c-6a302f74d944/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE