./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-17.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_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-17.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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 21420ec07872ebdf13b6707327ac11dfce6dd5da26c087213f4c675ac808eb5c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:15:32,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:15:32,613 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:15:32,623 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:15:32,624 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:15:32,665 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:15:32,666 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:15:32,666 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:15:32,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:15:32,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:15:32,673 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:15:32,675 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:15:32,675 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:15:32,677 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:15:32,678 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:15:32,678 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:15:32,679 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:15:32,679 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:15:32,680 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:15:32,681 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:15:32,681 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:15:32,682 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:15:32,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:15:32,684 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:15:32,684 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:15:32,685 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:15:32,685 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:15:32,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:15:32,686 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:15:32,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:15:32,688 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:15:32,689 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:15:32,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:15:32,690 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:15:32,690 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:15:32,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:15:32,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:15:32,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:15:32,692 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:15:32,692 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:15:32,693 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:15:32,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:15:32,693 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:15:32,694 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:15:32,694 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:15:32,695 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_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21420ec07872ebdf13b6707327ac11dfce6dd5da26c087213f4c675ac808eb5c [2023-11-19 04:15:33,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:15:33,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:15:33,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:15:33,046 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:15:33,047 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:15:33,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-17.i [2023-11-19 04:15:36,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:15:36,478 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:15:36,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-17.i [2023-11-19 04:15:36,487 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/data/abbc5d802/581a84a32ceb420ea5eacd7085689cc7/FLAGf654f9504 [2023-11-19 04:15:36,501 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/data/abbc5d802/581a84a32ceb420ea5eacd7085689cc7 [2023-11-19 04:15:36,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:15:36,506 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:15:36,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:15:36,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:15:36,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:15:36,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:15:36" (1/1) ... [2023-11-19 04:15:36,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48be38f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:36, skipping insertion in model container [2023-11-19 04:15:36,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:15:36" (1/1) ... [2023-11-19 04:15:36,551 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:15:36,687 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_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-17.i[915,928] [2023-11-19 04:15:36,717 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:15:36,731 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:15:36,745 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_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-17.i[915,928] [2023-11-19 04:15:36,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:15:36,776 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:15:36,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:36 WrapperNode [2023-11-19 04:15:36,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:15:36,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:15:36,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:15:36,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:15:36,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:36" (1/1) ... [2023-11-19 04:15:36,798 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:36" (1/1) ... [2023-11-19 04:15:36,823 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2023-11-19 04:15:36,824 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:15:36,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:15:36,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:15:36,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:15:36,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:36" (1/1) ... [2023-11-19 04:15:36,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:36" (1/1) ... [2023-11-19 04:15:36,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:36" (1/1) ... [2023-11-19 04:15:36,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:36" (1/1) ... [2023-11-19 04:15:36,842 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:36" (1/1) ... [2023-11-19 04:15:36,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:36" (1/1) ... [2023-11-19 04:15:36,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:36" (1/1) ... [2023-11-19 04:15:36,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:36" (1/1) ... [2023-11-19 04:15:36,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:15:36,865 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:15:36,865 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:15:36,866 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:15:36,867 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:36" (1/1) ... [2023-11-19 04:15:36,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:15:36,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:15:36,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:15:36,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:15:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:15:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:15:36,930 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:15:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:15:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:15:36,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:15:37,005 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:15:37,007 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:15:37,245 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:15:37,373 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:15:37,373 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:15:37,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:15:37 BoogieIcfgContainer [2023-11-19 04:15:37,378 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:15:37,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:15:37,381 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:15:37,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:15:37,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:15:36" (1/3) ... [2023-11-19 04:15:37,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755404fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:15:37, skipping insertion in model container [2023-11-19 04:15:37,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:36" (2/3) ... [2023-11-19 04:15:37,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755404fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:15:37, skipping insertion in model container [2023-11-19 04:15:37,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:15:37" (3/3) ... [2023-11-19 04:15:37,389 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-17.i [2023-11-19 04:15:37,407 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:15:37,407 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:15:37,473 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:15:37,482 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;@732a1be7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:15:37,482 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:15:37,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 04:15:37,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 04:15:37,518 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:15:37,519 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:15:37,520 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:15:37,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:15:37,526 INFO L85 PathProgramCache]: Analyzing trace with hash 2060368808, now seen corresponding path program 1 times [2023-11-19 04:15:37,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:15:37,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557517000] [2023-11-19 04:15:37,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:15:37,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:15:37,751 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:15:37,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1889764544] [2023-11-19 04:15:37,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:15:37,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:15:37,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:15:37,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:15:37,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:15:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:15:37,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:15:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:15:37,971 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:15:37,973 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:15:37,975 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:15:38,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 04:15:38,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:15:38,194 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:15:38,198 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:15:38,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:15:38 BoogieIcfgContainer [2023-11-19 04:15:38,244 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:15:38,245 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:15:38,245 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:15:38,245 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:15:38,246 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:15:37" (3/4) ... [2023-11-19 04:15:38,248 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:15:38,249 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:15:38,251 INFO L158 Benchmark]: Toolchain (without parser) took 1744.76ms. Allocated memory is still 155.2MB. Free memory was 111.8MB in the beginning and 105.0MB in the end (delta: 6.7MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2023-11-19 04:15:38,251 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 155.2MB. Free memory is still 132.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:15:38,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.98ms. Allocated memory is still 155.2MB. Free memory was 111.6MB in the beginning and 100.0MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:15:38,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.12ms. Allocated memory is still 155.2MB. Free memory was 100.0MB in the beginning and 98.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:15:38,253 INFO L158 Benchmark]: Boogie Preprocessor took 40.14ms. Allocated memory is still 155.2MB. Free memory was 98.2MB in the beginning and 96.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:15:38,254 INFO L158 Benchmark]: RCFGBuilder took 513.08ms. Allocated memory is still 155.2MB. Free memory was 96.8MB in the beginning and 78.1MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 04:15:38,255 INFO L158 Benchmark]: TraceAbstraction took 863.44ms. Allocated memory is still 155.2MB. Free memory was 77.5MB in the beginning and 105.5MB in the end (delta: -28.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:15:38,255 INFO L158 Benchmark]: Witness Printer took 4.55ms. Allocated memory is still 155.2MB. Free memory was 105.5MB in the beginning and 105.0MB in the end (delta: 504.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:15:38,259 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 155.2MB. Free memory is still 132.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.98ms. Allocated memory is still 155.2MB. Free memory was 111.6MB in the beginning and 100.0MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.12ms. Allocated memory is still 155.2MB. Free memory was 100.0MB in the beginning and 98.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.14ms. Allocated memory is still 155.2MB. Free memory was 98.2MB in the beginning and 96.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 513.08ms. Allocated memory is still 155.2MB. Free memory was 96.8MB in the beginning and 78.1MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 863.44ms. Allocated memory is still 155.2MB. Free memory was 77.5MB in the beginning and 105.5MB in the end (delta: -28.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.55ms. Allocated memory is still 155.2MB. Free memory was 105.5MB in the beginning and 105.0MB in the end (delta: 504.1kB). 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 75. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 3.6; [L23] signed char var_1_2 = 5; [L24] signed char var_1_3 = -25; [L25] signed long int var_1_4 = -8; [L26] unsigned char var_1_5 = 1; [L27] signed long int var_1_6 = 256; [L28] unsigned char var_1_7 = 0; [L29] float var_1_8 = 4.6; [L79] isInitial = 1 [L80] FCALL initially() [L81] COND TRUE 1 [L82] FCALL updateLastVariables() [L83] CALL updateVariables() [L50] var_1_2 = __VERIFIER_nondet_char() [L51] CALL assume_abort_if_not(var_1_2 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=-25, var_1_4=-8, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L20] COND FALSE !(!cond) [L51] RET assume_abort_if_not(var_1_2 >= -128) VAL [isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=-25, var_1_4=-8, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L52] CALL assume_abort_if_not(var_1_2 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=-25, var_1_4=-8, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L20] COND FALSE !(!cond) [L52] RET assume_abort_if_not(var_1_2 <= 127) VAL [isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=-25, var_1_4=-8, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L53] var_1_3 = __VERIFIER_nondet_char() [L54] CALL assume_abort_if_not(var_1_3 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=-8, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L20] COND FALSE !(!cond) [L54] RET assume_abort_if_not(var_1_3 >= -128) VAL [isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=-8, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L55] CALL assume_abort_if_not(var_1_3 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=-8, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L20] COND FALSE !(!cond) [L55] RET assume_abort_if_not(var_1_3 <= 127) VAL [isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=-8, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L56] CALL assume_abort_if_not(var_1_3 != 0) VAL [\old(cond)=1, isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=-8, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L20] COND FALSE !(!cond) [L56] RET assume_abort_if_not(var_1_3 != 0) VAL [isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=-8, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L57] var_1_4 = __VERIFIER_nondet_long() [L58] CALL assume_abort_if_not(var_1_4 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L20] COND FALSE !(!cond) [L58] RET assume_abort_if_not(var_1_4 >= -2147483648) VAL [isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L59] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L20] COND FALSE !(!cond) [L59] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L60] var_1_5 = __VERIFIER_nondet_uchar() [L61] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L62] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=256, var_1_7=0, var_1_8=23/5] [L63] var_1_6 = __VERIFIER_nondet_long() [L64] CALL assume_abort_if_not(var_1_6 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=23/5] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_6 >= -2147483648) VAL [isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=23/5] [L65] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=23/5] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=23/5] [L66] var_1_7 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=23/5] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=23/5] [L68] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=23/5] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=23/5] [L69] var_1_8 = __VERIFIER_nondet_float() [L70] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=2] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=18/5, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=2] [L83] RET updateVariables() [L84] CALL step() [L33] COND TRUE (var_1_2 / var_1_3) < var_1_4 [L34] COND TRUE \read(var_1_5) [L35] COND FALSE !(var_1_4 <= ((((var_1_3) < ((var_1_2 * var_1_6))) ? (var_1_3) : ((var_1_2 * var_1_6))))) [L42] var_1_1 = var_1_8 [L84] RET step() [L85] CALL, EXPR property() [L75-L76] return ((var_1_2 / var_1_3) < var_1_4) ? (var_1_5 ? ((var_1_4 <= ((((var_1_3) < ((var_1_2 * var_1_6))) ? (var_1_3) : ((var_1_2 * var_1_6))))) ? (var_1_7 ? (var_1_1 == ((float) var_1_8)) : (var_1_1 == ((float) var_1_8))) : (var_1_1 == ((float) var_1_8))) : 1) : (var_1_1 == ((float) var_1_8)) ; [L85] RET, EXPR property() [L85] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=2, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=2, var_1_2=0, var_1_3=2, var_1_4=1, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 14, 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=30occurred 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, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:15:38,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-17.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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 21420ec07872ebdf13b6707327ac11dfce6dd5da26c087213f4c675ac808eb5c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:15:41,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:15:41,225 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:15:41,234 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:15:41,235 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:15:41,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:15:41,288 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:15:41,289 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:15:41,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:15:41,295 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:15:41,296 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:15:41,297 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:15:41,297 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:15:41,299 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:15:41,299 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:15:41,300 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:15:41,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:15:41,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:15:41,302 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:15:41,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:15:41,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:15:41,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:15:41,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:15:41,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:15:41,306 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:15:41,307 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:15:41,307 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:15:41,308 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:15:41,308 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:15:41,309 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:15:41,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:15:41,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:15:41,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:15:41,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:15:41,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:15:41,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:15:41,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:15:41,313 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:15:41,313 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:15:41,314 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:15:41,314 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:15:41,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:15:41,315 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_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21420ec07872ebdf13b6707327ac11dfce6dd5da26c087213f4c675ac808eb5c [2023-11-19 04:15:41,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:15:41,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:15:41,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:15:41,785 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:15:41,786 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:15:41,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-17.i [2023-11-19 04:15:45,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:15:45,455 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:15:45,455 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-17.i [2023-11-19 04:15:45,463 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/data/f08d34571/d6a84013bb4c408cb667e255d342f248/FLAG6d524c25b [2023-11-19 04:15:45,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/data/f08d34571/d6a84013bb4c408cb667e255d342f248 [2023-11-19 04:15:45,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:15:45,480 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:15:45,482 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:15:45,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:15:45,487 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:15:45,488 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:15:45" (1/1) ... [2023-11-19 04:15:45,489 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@131a3882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:45, skipping insertion in model container [2023-11-19 04:15:45,489 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:15:45" (1/1) ... [2023-11-19 04:15:45,513 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:15:45,681 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_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-17.i[915,928] [2023-11-19 04:15:45,736 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:15:45,765 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:15:45,803 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_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-17.i[915,928] [2023-11-19 04:15:45,827 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:15:45,852 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:15:45,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:45 WrapperNode [2023-11-19 04:15:45,853 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:15:45,855 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:15:45,855 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:15:45,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:15:45,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:45" (1/1) ... [2023-11-19 04:15:45,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:45" (1/1) ... [2023-11-19 04:15:45,926 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 85 [2023-11-19 04:15:45,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:15:45,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:15:45,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:15:45,928 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:15:45,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:45" (1/1) ... [2023-11-19 04:15:45,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:45" (1/1) ... [2023-11-19 04:15:45,949 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:45" (1/1) ... [2023-11-19 04:15:45,949 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:45" (1/1) ... [2023-11-19 04:15:45,969 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:45" (1/1) ... [2023-11-19 04:15:45,977 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:45" (1/1) ... [2023-11-19 04:15:45,985 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:45" (1/1) ... [2023-11-19 04:15:45,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:45" (1/1) ... [2023-11-19 04:15:45,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:15:45,998 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:15:45,999 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:15:45,999 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:15:46,000 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:45" (1/1) ... [2023-11-19 04:15:46,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:15:46,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:15:46,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:15:46,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:15:46,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:15:46,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:15:46,084 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:15:46,084 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:15:46,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:15:46,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:15:46,184 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:15:46,187 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:15:46,569 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:15:46,580 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:15:46,580 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:15:46,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:15:46 BoogieIcfgContainer [2023-11-19 04:15:46,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:15:46,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:15:46,588 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:15:46,591 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:15:46,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:15:45" (1/3) ... [2023-11-19 04:15:46,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a9426e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:15:46, skipping insertion in model container [2023-11-19 04:15:46,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:45" (2/3) ... [2023-11-19 04:15:46,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a9426e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:15:46, skipping insertion in model container [2023-11-19 04:15:46,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:15:46" (3/3) ... [2023-11-19 04:15:46,595 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-17.i [2023-11-19 04:15:46,617 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:15:46,617 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:15:46,671 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:15:46,678 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;@77fdd2d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:15:46,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:15:46,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 04:15:46,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-19 04:15:46,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:15:46,698 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:15:46,698 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:15:46,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:15:46,705 INFO L85 PathProgramCache]: Analyzing trace with hash 755130548, now seen corresponding path program 1 times [2023-11-19 04:15:46,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:15:46,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152521500] [2023-11-19 04:15:46,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:15:46,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:15:46,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:15:46,726 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:15:46,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:15:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:15:47,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:15:47,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:15:47,063 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-19 04:15:47,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:15:47,064 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:15:47,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152521500] [2023-11-19 04:15:47,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152521500] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:15:47,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:15:47,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:15:47,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144951351] [2023-11-19 04:15:47,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:15:47,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:15:47,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:15:47,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:15:47,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:15:47,105 INFO L87 Difference]: Start difference. First operand has 44 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 04:15:47,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:15:47,135 INFO L93 Difference]: Finished difference Result 81 states and 136 transitions. [2023-11-19 04:15:47,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:15:47,137 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2023-11-19 04:15:47,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:15:47,146 INFO L225 Difference]: With dead ends: 81 [2023-11-19 04:15:47,146 INFO L226 Difference]: Without dead ends: 40 [2023-11-19 04:15:47,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:15:47,154 INFO L413 NwaCegarLoop]: 57 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, 57 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:15:47,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:15:47,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-19 04:15:47,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-19 04:15:47,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 04:15:47,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 57 transitions. [2023-11-19 04:15:47,200 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 57 transitions. Word has length 87 [2023-11-19 04:15:47,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:15:47,201 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 57 transitions. [2023-11-19 04:15:47,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 04:15:47,201 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 57 transitions. [2023-11-19 04:15:47,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-19 04:15:47,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:15:47,206 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:15:47,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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 04:15:47,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:15:47,412 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:15:47,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:15:47,413 INFO L85 PathProgramCache]: Analyzing trace with hash -297627592, now seen corresponding path program 1 times [2023-11-19 04:15:47,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:15:47,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982219297] [2023-11-19 04:15:47,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:15:47,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:15:47,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:15:47,417 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:15:47,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:15:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:15:47,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 04:15:47,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:15:49,034 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-19 04:15:49,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:15:49,035 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:15:49,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982219297] [2023-11-19 04:15:49,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982219297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:15:49,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:15:49,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 04:15:49,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353206809] [2023-11-19 04:15:49,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:15:49,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:15:49,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:15:49,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:15:49,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:15:49,039 INFO L87 Difference]: Start difference. First operand 40 states and 57 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 04:15:55,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:15:55,211 INFO L93 Difference]: Finished difference Result 81 states and 115 transitions. [2023-11-19 04:15:55,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 04:15:55,212 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2023-11-19 04:15:55,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:15:55,214 INFO L225 Difference]: With dead ends: 81 [2023-11-19 04:15:55,215 INFO L226 Difference]: Without dead ends: 79 [2023-11-19 04:15:55,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-11-19 04:15:55,216 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 76 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:15:55,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 256 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-19 04:15:55,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-19 04:15:55,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 47. [2023-11-19 04:15:55,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 04:15:55,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 63 transitions. [2023-11-19 04:15:55,238 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 63 transitions. Word has length 87 [2023-11-19 04:15:55,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:15:55,239 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 63 transitions. [2023-11-19 04:15:55,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 04:15:55,240 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2023-11-19 04:15:55,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-19 04:15:55,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:15:55,244 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:15:55,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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 04:15:55,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:15:55,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:15:55,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:15:55,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1213783843, now seen corresponding path program 1 times [2023-11-19 04:15:55,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:15:55,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071087292] [2023-11-19 04:15:55,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:15:55,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:15:55,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:15:55,454 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:15:55,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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 04:15:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:15:55,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 04:15:55,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:15:56,108 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 04:15:56,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:15:56,108 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:15:56,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071087292] [2023-11-19 04:15:56,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071087292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:15:56,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:15:56,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:15:56,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292827109] [2023-11-19 04:15:56,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:15:56,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:15:56,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:15:56,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:15:56,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:15:56,111 INFO L87 Difference]: Start difference. First operand 47 states and 63 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 04:15:58,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:15:58,238 INFO L93 Difference]: Finished difference Result 86 states and 120 transitions. [2023-11-19 04:15:58,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:15:58,242 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 88 [2023-11-19 04:15:58,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:15:58,245 INFO L225 Difference]: With dead ends: 86 [2023-11-19 04:15:58,245 INFO L226 Difference]: Without dead ends: 84 [2023-11-19 04:15:58,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:15:58,247 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 38 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:15:58,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 392 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-19 04:15:58,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-19 04:15:58,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 47. [2023-11-19 04:15:58,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 04:15:58,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 63 transitions. [2023-11-19 04:15:58,264 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 63 transitions. Word has length 88 [2023-11-19 04:15:58,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:15:58,265 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 63 transitions. [2023-11-19 04:15:58,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 04:15:58,265 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2023-11-19 04:15:58,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 04:15:58,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:15:58,269 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:15:58,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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 04:15:58,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:15:58,474 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:15:58,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:15:58,475 INFO L85 PathProgramCache]: Analyzing trace with hash 619147791, now seen corresponding path program 1 times [2023-11-19 04:15:58,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:15:58,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149434203] [2023-11-19 04:15:58,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:15:58,476 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:15:58,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:15:58,479 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:15:58,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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 (5)] Waiting until timeout for monitored process [2023-11-19 04:15:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:15:58,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 04:15:58,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:16:01,508 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-19 04:16:01,508 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:16:01,508 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:16:01,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149434203] [2023-11-19 04:16:01,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149434203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:16:01,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:16:01,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 04:16:01,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637216288] [2023-11-19 04:16:01,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:16:01,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 04:16:01,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:16:01,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 04:16:01,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-19 04:16:01,512 INFO L87 Difference]: Start difference. First operand 47 states and 63 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 04:16:09,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:16:09,457 INFO L93 Difference]: Finished difference Result 86 states and 120 transitions. [2023-11-19 04:16:09,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 04:16:09,462 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 89 [2023-11-19 04:16:09,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:16:09,463 INFO L225 Difference]: With dead ends: 86 [2023-11-19 04:16:09,463 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:16:09,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-11-19 04:16:09,466 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 81 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:16:09,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 266 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-11-19 04:16:09,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:16:09,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:16:09,468 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 04:16:09,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:16:09,469 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2023-11-19 04:16:09,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:16:09,469 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:16:09,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 04:16:09,470 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:16:09,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:16:09,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:16:09,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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 (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:16:09,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:16:09,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 04:16:12,219 INFO L895 garLoopResultBuilder]: At program point L64(line 64) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-19 04:16:12,220 INFO L895 garLoopResultBuilder]: At program point L64-1(line 64) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-19 04:16:12,220 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2023-11-19 04:16:12,220 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2023-11-19 04:16:12,220 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-19 04:16:12,221 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-19 04:16:12,221 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-19 04:16:12,221 INFO L895 garLoopResultBuilder]: At program point L81-2(lines 81 87) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-19 04:16:12,221 INFO L899 garLoopResultBuilder]: For program point L81-3(lines 81 87) no Hoare annotation was computed. [2023-11-19 04:16:12,221 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 78 89) no Hoare annotation was computed. [2023-11-19 04:16:12,221 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 40) no Hoare annotation was computed. [2023-11-19 04:16:12,222 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2023-11-19 04:16:12,222 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 48) no Hoare annotation was computed. [2023-11-19 04:16:12,222 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 04:16:12,223 INFO L895 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-19 04:16:12,223 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 04:16:12,223 INFO L895 garLoopResultBuilder]: At program point L61-1(line 61) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-19 04:16:12,223 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-19 04:16:12,224 INFO L899 garLoopResultBuilder]: For program point property_returnLabel#1(lines 74 77) no Hoare annotation was computed. [2023-11-19 04:16:12,224 INFO L902 garLoopResultBuilder]: At program point L70(line 70) the Hoare annotation is: true [2023-11-19 04:16:12,224 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 49 71) no Hoare annotation was computed. [2023-11-19 04:16:12,224 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 47) no Hoare annotation was computed. [2023-11-19 04:16:12,224 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 04:16:12,225 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2023-11-19 04:16:12,225 INFO L895 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-19 04:16:12,225 INFO L895 garLoopResultBuilder]: At program point L58-1(line 58) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-19 04:16:12,226 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-19 04:16:12,226 INFO L895 garLoopResultBuilder]: At program point L54-1(line 54) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-19 04:16:12,226 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 04:16:12,226 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-19 04:16:12,227 INFO L895 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-19 04:16:12,227 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 44) no Hoare annotation was computed. [2023-11-19 04:16:12,227 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 31) no Hoare annotation was computed. [2023-11-19 04:16:12,227 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-11-19 04:16:12,228 INFO L895 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-19 04:16:12,228 INFO L895 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-19 04:16:12,228 INFO L895 garLoopResultBuilder]: At program point L51-1(line 51) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-19 04:16:12,228 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2023-11-19 04:16:12,229 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2023-11-19 04:16:12,229 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 43) no Hoare annotation was computed. [2023-11-19 04:16:12,229 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-19 04:16:12,229 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-19 04:16:12,230 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-19 04:16:12,230 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-19 04:16:12,233 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 04:16:12,236 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:16:12,246 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.geq~32(~var_1_8~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 9.2233720368547656E18))) && ~fp.leq~32(~var_1_8~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1/100000000000000000000)))) could not be translated [2023-11-19 04:16:12,247 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.leq~32(~var_1_8~0, ~to_fp~32(currentRoundingMode, 9.2233720368547656E18)) && ~fp.geq~32(~var_1_8~0, ~to_fp~32(currentRoundingMode, 1/100000000000000000000))) could not be translated [2023-11-19 04:16:12,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:16:12 BoogieIcfgContainer [2023-11-19 04:16:12,248 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:16:12,249 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:16:12,249 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:16:12,250 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:16:12,250 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:15:46" (3/4) ... [2023-11-19 04:16:12,252 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:16:12,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 04:16:12,263 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-19 04:16:12,263 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 04:16:12,264 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:16:12,264 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:16:12,441 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:16:12,442 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:16:12,442 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:16:12,443 INFO L158 Benchmark]: Toolchain (without parser) took 26962.73ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 35.9MB in the beginning and 68.7MB in the end (delta: -32.8MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2023-11-19 04:16:12,444 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 67.1MB. Free memory was 43.8MB in the beginning and 43.7MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:16:12,444 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.87ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 35.9MB in the beginning and 72.5MB in the end (delta: -36.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2023-11-19 04:16:12,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.70ms. Allocated memory is still 94.4MB. Free memory was 72.5MB in the beginning and 70.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:16:12,445 INFO L158 Benchmark]: Boogie Preprocessor took 70.49ms. Allocated memory is still 94.4MB. Free memory was 70.7MB in the beginning and 69.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:16:12,445 INFO L158 Benchmark]: RCFGBuilder took 586.44ms. Allocated memory is still 94.4MB. Free memory was 69.0MB in the beginning and 56.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:16:12,446 INFO L158 Benchmark]: TraceAbstraction took 25661.01ms. Allocated memory is still 94.4MB. Free memory was 56.0MB in the beginning and 64.6MB in the end (delta: -8.6MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2023-11-19 04:16:12,446 INFO L158 Benchmark]: Witness Printer took 193.28ms. Allocated memory is still 94.4MB. Free memory was 64.6MB in the beginning and 68.7MB in the end (delta: -4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:16:12,449 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 67.1MB. Free memory was 43.8MB in the beginning and 43.7MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.87ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 35.9MB in the beginning and 72.5MB in the end (delta: -36.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.70ms. Allocated memory is still 94.4MB. Free memory was 72.5MB in the beginning and 70.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.49ms. Allocated memory is still 94.4MB. Free memory was 70.7MB in the beginning and 69.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 586.44ms. Allocated memory is still 94.4MB. Free memory was 69.0MB in the beginning and 56.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 25661.01ms. Allocated memory is still 94.4MB. Free memory was 56.0MB in the beginning and 64.6MB in the end (delta: -8.6MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Witness Printer took 193.28ms. Allocated memory is still 94.4MB. Free memory was 64.6MB in the beginning and 68.7MB in the end (delta: -4.1MB). 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.geq~32(~var_1_8~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 9.2233720368547656E18))) && ~fp.leq~32(~var_1_8~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1/100000000000000000000)))) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.leq~32(~var_1_8~0, ~to_fp~32(currentRoundingMode, 9.2233720368547656E18)) && ~fp.geq~32(~var_1_8~0, ~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, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.6s, OverallIterations: 4, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 237 SdHoareTripleChecker+Valid, 11.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 195 mSDsluCounter, 971 SdHoareTripleChecker+Invalid, 10.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 688 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 745 IncrementalHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 283 mSDtfsCounter, 745 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=2, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 69 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 57 PreInvPairs, 88 NumberOfFragments, 380 HoareAnnotationTreeSize, 57 FomulaSimplifications, 4724 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 16 FomulaSimplificationsInter, 1232 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 351 NumberOfCodeBlocks, 351 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 347 ConstructedInterpolants, 8 QuantifiedInterpolants, 646 SizeOfPredicates, 31 NumberOfNonLiveVariables, 558 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 1456/1456 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: 81]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-19 04:16:12,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d61120-b5b4-4cb0-b4fa-b0345b9dacf3/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 Writing output log to file Ultimate.log Result: TRUE