./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91 --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 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:49:02,321 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:49:02,389 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:49:02,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:49:02,396 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:49:02,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:49:02,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:49:02,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:49:02,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:49:02,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:49:02,427 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:49:02,427 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:49:02,428 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:49:02,429 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:49:02,429 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:49:02,430 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:49:02,430 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:49:02,431 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:49:02,432 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:49:02,432 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:49:02,433 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:49:02,434 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:49:02,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:49:02,435 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:49:02,436 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:49:02,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:49:02,437 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:49:02,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:49:02,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:49:02,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:49:02,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:49:02,439 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:49:02,439 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:49:02,440 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:49:02,440 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:49:02,441 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:49:02,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:49:02,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:49:02,442 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:49:02,442 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:49:02,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:49:02,443 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:49:02,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:49:02,444 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:49:02,444 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:49:02,445 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:49:02,445 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:49:02,445 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_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c [2023-11-24 23:49:02,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:49:02,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:49:02,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:49:02,799 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:49:02,801 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:49:02,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-24 23:49:05,888 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:49:06,236 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:49:06,237 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-24 23:49:06,247 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/data/c3ec5501d/e1b2e0bcbcf745dba48513f0024ebe09/FLAG8d8345743 [2023-11-24 23:49:06,263 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/data/c3ec5501d/e1b2e0bcbcf745dba48513f0024ebe09 [2023-11-24 23:49:06,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:49:06,275 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:49:06,278 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:49:06,278 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:49:06,284 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:49:06,285 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,286 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dabc80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06, skipping insertion in model container [2023-11-24 23:49:06,287 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,328 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:49:06,536 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_b3ae3db5-fbcf-416c-b63c-1b101afecd14/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i[916,929] [2023-11-24 23:49:06,604 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:49:06,617 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:49:06,631 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_b3ae3db5-fbcf-416c-b63c-1b101afecd14/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i[916,929] [2023-11-24 23:49:06,654 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:49:06,672 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:49:06,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06 WrapperNode [2023-11-24 23:49:06,673 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:49:06,674 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:49:06,674 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:49:06,674 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:49:06,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,765 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 145 [2023-11-24 23:49:06,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:49:06,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:49:06,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:49:06,767 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:49:06,777 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,780 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,780 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,792 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,794 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,796 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,800 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:49:06,801 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:49:06,801 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:49:06,801 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:49:06,802 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:49:06,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:49:06,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:49:06,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:49:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:49:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:49:06,902 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:49:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:49:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:49:06,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:49:06,989 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:49:06,992 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:49:07,285 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:49:07,533 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:49:07,536 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:49:07,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:49:07 BoogieIcfgContainer [2023-11-24 23:49:07,539 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:49:07,558 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:49:07,558 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:49:07,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:49:07,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:49:06" (1/3) ... [2023-11-24 23:49:07,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c942a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:49:07, skipping insertion in model container [2023-11-24 23:49:07,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (2/3) ... [2023-11-24 23:49:07,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c942a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:49:07, skipping insertion in model container [2023-11-24 23:49:07,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:49:07" (3/3) ... [2023-11-24 23:49:07,573 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-24 23:49:07,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:49:07,598 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:49:07,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:49:07,660 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;@4df0f8eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:49:07,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:49:07,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-24 23:49:07,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-24 23:49:07,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:49:07,680 INFO L195 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:49:07,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:49:07,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:07,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1542946712, now seen corresponding path program 1 times [2023-11-24 23:49:07,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:49:07,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174440572] [2023-11-24 23:49:07,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:07,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:49:07,871 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:49:07,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006853523] [2023-11-24 23:49:07,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:07,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:49:07,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:49:07,877 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:49:07,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:49:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:49:08,200 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:49:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:49:08,410 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:49:08,413 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:49:08,414 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:49:08,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:49:08,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-24 23:49:08,628 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:49:08,634 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:49:08,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:49:08 BoogieIcfgContainer [2023-11-24 23:49:08,777 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:49:08,778 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:49:08,778 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:49:08,778 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:49:08,779 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:49:07" (3/4) ... [2023-11-24 23:49:08,782 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:49:08,784 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:49:08,786 INFO L158 Benchmark]: Toolchain (without parser) took 2510.43ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 82.1MB in the beginning and 63.1MB in the end (delta: 19.0MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2023-11-24 23:49:08,786 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 62.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:49:08,788 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.89ms. Allocated memory is still 115.3MB. Free memory was 81.7MB in the beginning and 69.6MB in the end (delta: 12.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 23:49:08,791 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.84ms. Allocated memory is still 115.3MB. Free memory was 69.2MB in the beginning and 66.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:49:08,798 INFO L158 Benchmark]: Boogie Preprocessor took 33.73ms. Allocated memory is still 115.3MB. Free memory was 66.7MB in the beginning and 65.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:49:08,800 INFO L158 Benchmark]: RCFGBuilder took 738.18ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 65.5MB in the beginning and 100.5MB in the end (delta: -35.1MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2023-11-24 23:49:08,801 INFO L158 Benchmark]: TraceAbstraction took 1219.12ms. Allocated memory is still 140.5MB. Free memory was 99.7MB in the beginning and 63.1MB in the end (delta: 36.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-24 23:49:08,801 INFO L158 Benchmark]: Witness Printer took 6.33ms. Allocated memory is still 140.5MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:49:08,804 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 62.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.89ms. Allocated memory is still 115.3MB. Free memory was 81.7MB in the beginning and 69.6MB in the end (delta: 12.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.84ms. Allocated memory is still 115.3MB. Free memory was 69.2MB in the beginning and 66.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.73ms. Allocated memory is still 115.3MB. Free memory was 66.7MB in the beginning and 65.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 738.18ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 65.5MB in the beginning and 100.5MB in the end (delta: -35.1MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1219.12ms. Allocated memory is still 140.5MB. Free memory was 99.7MB in the beginning and 63.1MB in the end (delta: 36.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 6.33ms. Allocated memory is still 140.5MB. Free memory is still 63.1MB. 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 bitwiseAnd at line 42. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] signed char var_1_2 = 2; [L24] signed char var_1_3 = 8; [L25] signed char var_1_4 = 0; [L26] signed char var_1_5 = 32; [L27] signed char var_1_6 = 10; [L28] signed long int var_1_7 = 1000000; [L29] signed long int var_1_8 = 16; [L30] signed long int var_1_9 = 15; [L31] signed short int var_1_10 = 500; [L32] unsigned short int var_1_11 = 8; [L33] unsigned char var_1_13 = 0; [L34] unsigned short int var_1_14 = 100; [L35] unsigned char var_1_15 = 0; [L36] unsigned char var_1_16 = 0; [L37] signed long int var_1_17 = 2; [L100] isInitial = 1 [L101] FCALL initially() [L102] COND TRUE 1 [L103] FCALL updateLastVariables() [L104] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_char() [L62] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L63] CALL assume_abort_if_not(var_1_2 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_2 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L64] var_1_3 = __VERIFIER_nondet_char() [L65] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L66] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L67] var_1_4 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L69] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L70] var_1_5 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L72] CALL assume_abort_if_not(var_1_5 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_5 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L73] var_1_6 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=16, var_1_9=15] [L75] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=16, var_1_9=15] [L76] var_1_8 = __VERIFIER_nondet_long() [L77] CALL assume_abort_if_not(var_1_8 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=15] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_8 >= -2147483648) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=15] [L78] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=15] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=15] [L79] var_1_9 = __VERIFIER_nondet_long() [L80] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L81] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L82] var_1_14 = __VERIFIER_nondet_ushort() [L83] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L84] CALL assume_abort_if_not(var_1_14 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_14 <= 65535) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L85] CALL assume_abort_if_not(var_1_14 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_14 != 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L86] var_1_15 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L88] CALL assume_abort_if_not(var_1_15 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_15 <= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L89] var_1_16 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L91] CALL assume_abort_if_not(var_1_16 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_16 <= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=1000000, var_1_8=-2147483646, var_1_9=-2147483647] [L104] RET updateVariables() [L105] CALL step() [L41] var_1_1 = ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))) [L42] EXPR var_1_6 & var_1_3 [L42] signed long int stepLocal_0 = (~ var_1_5) * (var_1_6 & var_1_3); [L43] COND FALSE !(stepLocal_0 >= var_1_4) [L46] var_1_7 = var_1_9 [L48] var_1_10 = ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))) [L49] signed long int stepLocal_1 = var_1_6 / var_1_14; [L50] COND FALSE !(stepLocal_1 < -100) [L53] var_1_13 = (var_1_15 && var_1_16) [L55] var_1_17 = var_1_8 [L56] COND TRUE ! var_1_13 [L57] var_1_11 = (var_1_5 + (((((var_1_6) > (1)) ? (var_1_6) : (1))) + 64)) [L105] RET step() [L106] CALL, EXPR property() [L96] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((signed long int) var_1_8)) : (var_1_7 == ((signed long int) var_1_9))) [L96] EXPR var_1_6 & var_1_3 [L96] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((signed long int) var_1_8)) : (var_1_7 == ((signed long int) var_1_9))) [L96-L97] return (((((var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((signed long int) var_1_8)) : (var_1_7 == ((signed long int) var_1_9)))) && (var_1_10 == ((signed short int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2)))))) && ((! var_1_13) ? (var_1_11 == ((unsigned short int) (var_1_5 + (((((var_1_6) > (1)) ? (var_1_6) : (1))) + 64)))) : 1)) && (((var_1_6 / var_1_14) < -100) ? (var_1_13 == ((unsigned char) (! (! (! var_1_15))))) : (var_1_13 == ((unsigned char) (var_1_15 && var_1_16))))) && (var_1_17 == ((signed long int) var_1_8)) ; [L106] RET, EXPR property() [L106] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=63, var_1_11=69, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=-2147483646, var_1_1=62, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=-2147483647, var_1_8=-2147483646, var_1_9=-2147483647] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=63, var_1_11=69, var_1_13=0, var_1_14=2, var_1_15=0, var_1_16=0, var_1_17=-2147483646, var_1_1=62, var_1_2=63, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=5, var_1_7=-2147483647, var_1_8=-2147483646, var_1_9=-2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 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 [2023-11-24 23:49:08,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91 --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 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:49:11,847 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:49:11,981 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:49:11,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:49:11,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:49:12,045 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:49:12,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:49:12,047 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:49:12,048 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:49:12,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:49:12,054 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:49:12,055 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:49:12,056 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:49:12,057 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:49:12,058 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:49:12,058 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:49:12,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:49:12,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:49:12,061 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:49:12,062 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:49:12,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:49:12,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:49:12,064 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:49:12,064 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:49:12,065 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:49:12,065 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:49:12,066 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:49:12,066 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:49:12,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:49:12,067 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:49:12,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:49:12,069 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:49:12,069 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:49:12,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:49:12,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:49:12,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:49:12,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:49:12,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:49:12,071 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:49:12,073 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:49:12,073 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:49:12,073 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:49:12,074 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:49:12,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:49:12,074 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_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c [2023-11-24 23:49:12,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:49:12,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:49:12,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:49:12,618 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:49:12,618 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:49:12,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-24 23:49:15,839 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:49:16,215 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:49:16,217 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-24 23:49:16,230 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/data/5675fcf87/bad0f2ee4fc44413885be64a478efb53/FLAG59e166078 [2023-11-24 23:49:16,251 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/data/5675fcf87/bad0f2ee4fc44413885be64a478efb53 [2023-11-24 23:49:16,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:49:16,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:49:16,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:49:16,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:49:16,272 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:49:16,273 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:49:16" (1/1) ... [2023-11-24 23:49:16,275 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@877661e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:16, skipping insertion in model container [2023-11-24 23:49:16,275 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:49:16" (1/1) ... [2023-11-24 23:49:16,326 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:49:16,542 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_b3ae3db5-fbcf-416c-b63c-1b101afecd14/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i[916,929] [2023-11-24 23:49:16,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:49:16,646 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:49:16,669 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_b3ae3db5-fbcf-416c-b63c-1b101afecd14/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i[916,929] [2023-11-24 23:49:16,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:49:16,734 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:49:16,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:16 WrapperNode [2023-11-24 23:49:16,735 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:49:16,736 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:49:16,736 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:49:16,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:49:16,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:16" (1/1) ... [2023-11-24 23:49:16,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:16" (1/1) ... [2023-11-24 23:49:16,816 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2023-11-24 23:49:16,825 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:49:16,826 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:49:16,826 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:49:16,827 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:49:16,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:16" (1/1) ... [2023-11-24 23:49:16,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:16" (1/1) ... [2023-11-24 23:49:16,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:16" (1/1) ... [2023-11-24 23:49:16,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:16" (1/1) ... [2023-11-24 23:49:16,870 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:16" (1/1) ... [2023-11-24 23:49:16,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:16" (1/1) ... [2023-11-24 23:49:16,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:16" (1/1) ... [2023-11-24 23:49:16,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:16" (1/1) ... [2023-11-24 23:49:16,903 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:49:16,904 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:49:16,905 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:49:16,905 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:49:16,906 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:16" (1/1) ... [2023-11-24 23:49:16,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:49:16,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:49:16,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:49:17,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:49:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:49:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:49:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:49:17,040 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:49:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:49:17,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:49:17,135 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:49:17,138 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:49:17,511 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:49:17,568 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:49:17,568 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:49:17,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:49:17 BoogieIcfgContainer [2023-11-24 23:49:17,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:49:17,572 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:49:17,572 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:49:17,576 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:49:17,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:49:16" (1/3) ... [2023-11-24 23:49:17,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f72ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:49:17, skipping insertion in model container [2023-11-24 23:49:17,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:16" (2/3) ... [2023-11-24 23:49:17,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f72ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:49:17, skipping insertion in model container [2023-11-24 23:49:17,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:49:17" (3/3) ... [2023-11-24 23:49:17,579 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-24 23:49:17,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:49:17,600 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:49:17,651 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:49:17,658 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;@428c9cec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:49:17,658 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:49:17,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-24 23:49:17,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-24 23:49:17,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:49:17,679 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:49:17,680 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:49:17,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:17,685 INFO L85 PathProgramCache]: Analyzing trace with hash 573295454, now seen corresponding path program 1 times [2023-11-24 23:49:17,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:49:17,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527713649] [2023-11-24 23:49:17,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:17,706 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 [2023-11-24 23:49:17,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:49:17,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:49:17,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:49:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:49:18,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:49:18,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:49:18,208 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2023-11-24 23:49:18,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:49:18,209 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:49:18,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527713649] [2023-11-24 23:49:18,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527713649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:49:18,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:49:18,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:49:18,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254253807] [2023-11-24 23:49:18,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:49:18,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:49:18,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:49:18,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:49:18,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:49:18,267 INFO L87 Difference]: Start difference. First operand has 49 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-24 23:49:18,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:49:18,363 INFO L93 Difference]: Finished difference Result 95 states and 169 transitions. [2023-11-24 23:49:18,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:49:18,371 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 125 [2023-11-24 23:49:18,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:49:18,379 INFO L225 Difference]: With dead ends: 95 [2023-11-24 23:49:18,380 INFO L226 Difference]: Without dead ends: 47 [2023-11-24 23:49:18,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:49:18,388 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:49:18,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:49:18,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-24 23:49:18,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-24 23:49:18,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-24 23:49:18,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 70 transitions. [2023-11-24 23:49:18,458 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 70 transitions. Word has length 125 [2023-11-24 23:49:18,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:49:18,459 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 70 transitions. [2023-11-24 23:49:18,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-24 23:49:18,460 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 70 transitions. [2023-11-24 23:49:18,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-24 23:49:18,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:49:18,466 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:49:18,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-24 23:49:18,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:49:18,670 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:49:18,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:18,671 INFO L85 PathProgramCache]: Analyzing trace with hash -496600164, now seen corresponding path program 1 times [2023-11-24 23:49:18,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:49:18,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111445858] [2023-11-24 23:49:18,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:18,673 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 [2023-11-24 23:49:18,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:49:18,675 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:49:18,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:49:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:49:18,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:49:18,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:49:19,976 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 560 proven. 45 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-24 23:49:19,977 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:49:21,683 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:49:21,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111445858] [2023-11-24 23:49:21,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111445858] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:49:21,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [479995998] [2023-11-24 23:49:21,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:21,684 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:49:21,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:49:21,688 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:49:21,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 23:49:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:49:22,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-24 23:49:22,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:49:22,496 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 560 proven. 45 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-24 23:49:22,496 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:49:23,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [479995998] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:49:23,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872453977] [2023-11-24 23:49:23,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:23,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:49:23,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:49:23,054 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:49:23,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 23:49:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:49:23,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:49:23,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:49:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 560 proven. 45 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-24 23:49:23,744 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:49:24,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872453977] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:49:24,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 23:49:24,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2023-11-24 23:49:24,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891129497] [2023-11-24 23:49:24,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 23:49:24,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-24 23:49:24,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:49:24,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-24 23:49:24,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-24 23:49:24,346 INFO L87 Difference]: Start difference. First operand 47 states and 70 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-24 23:49:27,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:49:27,077 INFO L93 Difference]: Finished difference Result 105 states and 149 transitions. [2023-11-24 23:49:27,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-24 23:49:27,091 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 125 [2023-11-24 23:49:27,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:49:27,094 INFO L225 Difference]: With dead ends: 105 [2023-11-24 23:49:27,094 INFO L226 Difference]: Without dead ends: 59 [2023-11-24 23:49:27,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2023-11-24 23:49:27,098 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:49:27,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 133 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-24 23:49:27,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-24 23:49:27,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2023-11-24 23:49:27,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-24 23:49:27,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 75 transitions. [2023-11-24 23:49:27,118 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 75 transitions. Word has length 125 [2023-11-24 23:49:27,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:49:27,120 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 75 transitions. [2023-11-24 23:49:27,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-24 23:49:27,120 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 75 transitions. [2023-11-24 23:49:27,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-24 23:49:27,123 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:49:27,123 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:49:27,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:49:27,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-24 23:49:27,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-24 23:49:27,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:49:27,733 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:49:27,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:27,734 INFO L85 PathProgramCache]: Analyzing trace with hash -439341862, now seen corresponding path program 1 times [2023-11-24 23:49:27,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:49:27,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678457095] [2023-11-24 23:49:27,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:27,735 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 [2023-11-24 23:49:27,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:49:27,737 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:49:27,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ae3db5-fbcf-416c-b63c-1b101afecd14/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-24 23:49:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:49:27,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-24 23:49:27,943 INFO L285 TraceCheckSpWp]: Computing forward predicates...