./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-4.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_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/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_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/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_bb81e05b-d2db-4c6e-9a7d-732f201452d1/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 d641f0fce6003e45544d7b313fe1ff9fa273efb3a1cdf3caa63db5b3b8db2e1d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:51:13,357 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:51:13,473 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:51:13,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:51:13,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:51:13,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:51:13,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:51:13,535 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:51:13,536 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:51:13,541 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:51:13,541 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:51:13,543 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:51:13,543 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:51:13,545 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:51:13,545 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:51:13,546 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:51:13,546 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:51:13,547 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:51:13,547 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:51:13,548 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:51:13,548 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:51:13,549 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:51:13,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:51:13,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:51:13,551 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:51:13,552 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:51:13,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:51:13,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:51:13,553 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:51:13,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:51:13,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:51:13,555 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:51:13,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:51:13,556 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:51:13,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:51:13,556 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:51:13,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:51:13,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:51:13,557 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:51:13,557 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:51:13,558 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:51:13,558 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:51:13,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:51:13,559 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:51:13,559 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:51:13,560 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:51:13,560 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:51:13,560 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_bb81e05b-d2db-4c6e-9a7d-732f201452d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d641f0fce6003e45544d7b313fe1ff9fa273efb3a1cdf3caa63db5b3b8db2e1d [2023-11-24 23:51:13,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:51:13,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:51:13,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:51:13,867 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:51:13,868 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:51:13,869 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-4.i [2023-11-24 23:51:17,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:51:17,374 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:51:17,374 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-4.i [2023-11-24 23:51:17,384 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/data/b7ead49de/3a94dea1d95b48dcbc6304ef6a884e15/FLAG0ea43d360 [2023-11-24 23:51:17,399 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/data/b7ead49de/3a94dea1d95b48dcbc6304ef6a884e15 [2023-11-24 23:51:17,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:51:17,404 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:51:17,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:51:17,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:51:17,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:51:17,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:51:17" (1/1) ... [2023-11-24 23:51:17,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d89e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:17, skipping insertion in model container [2023-11-24 23:51:17,414 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:51:17" (1/1) ... [2023-11-24 23:51:17,442 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:51:17,601 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_bb81e05b-d2db-4c6e-9a7d-732f201452d1/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-4.i[915,928] [2023-11-24 23:51:17,649 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:17,662 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:51:17,672 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_bb81e05b-d2db-4c6e-9a7d-732f201452d1/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-4.i[915,928] [2023-11-24 23:51:17,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:17,718 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:51:17,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:17 WrapperNode [2023-11-24 23:51:17,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:51:17,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:17,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:51:17,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:51:17,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:17" (1/1) ... [2023-11-24 23:51:17,741 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:17" (1/1) ... [2023-11-24 23:51:17,811 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2023-11-24 23:51:17,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:17,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:51:17,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:51:17,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:51:17,823 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:17" (1/1) ... [2023-11-24 23:51:17,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:17" (1/1) ... [2023-11-24 23:51:17,826 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:17" (1/1) ... [2023-11-24 23:51:17,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:17" (1/1) ... [2023-11-24 23:51:17,835 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:17" (1/1) ... [2023-11-24 23:51:17,839 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:17" (1/1) ... [2023-11-24 23:51:17,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:17" (1/1) ... [2023-11-24 23:51:17,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:17" (1/1) ... [2023-11-24 23:51:17,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:51:17,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:51:17,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:51:17,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:51:17,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:17" (1/1) ... [2023-11-24 23:51:17,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:51:17,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:51:17,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:51:17,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:51:17,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:51:17,941 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:51:17,941 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:51:17,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:51:17,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:51:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:51:18,071 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:51:18,073 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:51:18,406 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:51:18,630 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:51:18,630 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:51:18,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:18 BoogieIcfgContainer [2023-11-24 23:51:18,632 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:51:18,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:51:18,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:51:18,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:51:18,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:51:17" (1/3) ... [2023-11-24 23:51:18,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1f6a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:18, skipping insertion in model container [2023-11-24 23:51:18,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:17" (2/3) ... [2023-11-24 23:51:18,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1f6a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:18, skipping insertion in model container [2023-11-24 23:51:18,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:18" (3/3) ... [2023-11-24 23:51:18,653 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-4.i [2023-11-24 23:51:18,674 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:51:18,675 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:51:18,740 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:51:18,748 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;@5f30c188, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:51:18,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:51:18,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-24 23:51:18,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-24 23:51:18,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:18,766 INFO L195 NwaCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:51:18,767 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:51:18,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:18,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1193405605, now seen corresponding path program 1 times [2023-11-24 23:51:18,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:51:18,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076106298] [2023-11-24 23:51:18,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:18,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:51:18,937 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:51:18,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481927289] [2023-11-24 23:51:18,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:18,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:51:18,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:51:18,944 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:51:18,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:51:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:51:19,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:51:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:51:19,563 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:51:19,566 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:51:19,567 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:51:19,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:51:19,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-24 23:51:19,780 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:51:19,784 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:51:19,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:51:19 BoogieIcfgContainer [2023-11-24 23:51:19,858 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:51:19,858 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:51:19,858 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:51:19,859 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:51:19,859 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:18" (3/4) ... [2023-11-24 23:51:19,861 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:51:19,863 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:51:19,864 INFO L158 Benchmark]: Toolchain (without parser) took 2459.99ms. Allocated memory is still 155.2MB. Free memory was 110.0MB in the beginning and 87.8MB in the end (delta: 22.2MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2023-11-24 23:51:19,864 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:51:19,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.26ms. Allocated memory is still 155.2MB. Free memory was 110.0MB in the beginning and 96.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:51:19,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.88ms. Allocated memory is still 155.2MB. Free memory was 96.9MB in the beginning and 93.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:51:19,866 INFO L158 Benchmark]: Boogie Preprocessor took 34.89ms. Allocated memory is still 155.2MB. Free memory was 93.8MB in the beginning and 92.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:51:19,867 INFO L158 Benchmark]: RCFGBuilder took 784.19ms. Allocated memory is still 155.2MB. Free memory was 92.2MB in the beginning and 121.6MB in the end (delta: -29.4MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2023-11-24 23:51:19,867 INFO L158 Benchmark]: TraceAbstraction took 1222.86ms. Allocated memory is still 155.2MB. Free memory was 120.6MB in the beginning and 88.3MB in the end (delta: 32.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-24 23:51:19,868 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 155.2MB. Free memory was 88.3MB in the beginning and 87.8MB in the end (delta: 461.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:51:19,872 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.26ms. Allocated memory is still 155.2MB. Free memory was 110.0MB in the beginning and 96.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.88ms. Allocated memory is still 155.2MB. Free memory was 96.9MB in the beginning and 93.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.89ms. Allocated memory is still 155.2MB. Free memory was 93.8MB in the beginning and 92.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 784.19ms. Allocated memory is still 155.2MB. Free memory was 92.2MB in the beginning and 121.6MB in the end (delta: -29.4MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1222.86ms. Allocated memory is still 155.2MB. Free memory was 120.6MB in the beginning and 88.3MB in the end (delta: 32.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 155.2MB. Free memory was 88.3MB in the beginning and 87.8MB in the end (delta: 461.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 5; [L23] signed short int var_1_3 = -25; [L24] unsigned short int var_1_7 = 4; [L25] unsigned char var_1_8 = 4; [L26] unsigned char var_1_10 = 4; [L27] unsigned char var_1_11 = 8; [L28] unsigned long int var_1_12 = 10; [L29] signed long int var_1_13 = 99; [L30] signed long int var_1_14 = 127; [L31] signed long int var_1_15 = 16; [L32] signed long int var_1_16 = 256; [L33] unsigned long int var_1_17 = 4288034294; [L34] unsigned char var_1_18 = 0; [L35] unsigned long int last_1_var_1_12 = 10; [L36] unsigned char last_1_var_1_18 = 0; [L99] isInitial = 1 [L100] FCALL initially() [L101] COND TRUE 1 [L102] CALL updateLastVariables() [L91] last_1_var_1_12 = var_1_12 [L92] last_1_var_1_18 = var_1_18 [L102] RET updateLastVariables() [L103] CALL updateVariables() [L62] var_1_3 = __VERIFIER_nondet_short() [L63] CALL assume_abort_if_not(var_1_3 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=4, var_1_11=8, var_1_12=10, var_1_13=99, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_3 >= -32768) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=4, var_1_11=8, var_1_12=10, var_1_13=99, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L64] CALL assume_abort_if_not(var_1_3 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=4, var_1_11=8, var_1_12=10, var_1_13=99, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_3 <= 32767) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=4, var_1_11=8, var_1_12=10, var_1_13=99, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L65] CALL assume_abort_if_not(var_1_3 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=4, var_1_11=8, var_1_12=10, var_1_13=99, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_3 != 0) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=4, var_1_11=8, var_1_12=10, var_1_13=99, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L66] var_1_10 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_11=8, var_1_12=10, var_1_13=99, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_11=8, var_1_12=10, var_1_13=99, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L68] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=8, var_1_12=10, var_1_13=99, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=8, var_1_12=10, var_1_13=99, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L69] var_1_11 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_12=10, var_1_13=99, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_12=10, var_1_13=99, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L71] CALL assume_abort_if_not(var_1_11 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=99, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_11 <= 254) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=99, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L72] var_1_13 = __VERIFIER_nondet_long() [L73] CALL assume_abort_if_not(var_1_13 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_13 >= -2147483648) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L74] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=127, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L75] var_1_14 = __VERIFIER_nondet_long() [L76] CALL assume_abort_if_not(var_1_14 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_14 >= -2147483648) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L77] CALL assume_abort_if_not(var_1_14 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_14 <= 2147483647) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=16, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L78] var_1_15 = __VERIFIER_nondet_long() [L79] CALL assume_abort_if_not(var_1_15 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_15 >= -2147483648) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L80] CALL assume_abort_if_not(var_1_15 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_15 <= 2147483647) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L81] CALL assume_abort_if_not(var_1_15 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_15 != 0) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=256, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L82] var_1_16 = __VERIFIER_nondet_long() [L83] CALL assume_abort_if_not(var_1_16 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=-2147483648, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_16 >= -2147483648) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=-2147483648, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L84] CALL assume_abort_if_not(var_1_16 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=-2147483648, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_16 <= 2147483647) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=-2147483648, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L85] CALL assume_abort_if_not(var_1_16 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=-2147483648, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_16 != 0) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=-2147483648, var_1_17=4288034294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L86] var_1_17 = __VERIFIER_nondet_ulong() [L87] CALL assume_abort_if_not(var_1_17 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=-2147483648, var_1_17=4294967294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_17 >= 2147483647) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=-2147483648, var_1_17=4294967294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L88] CALL assume_abort_if_not(var_1_17 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=-2147483648, var_1_17=4294967294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_17 <= 4294967294) VAL [isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=10, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=-2147483648, var_1_17=4294967294, var_1_18=0, var_1_1=5, var_1_3=-1, var_1_7=4, var_1_8=4] [L103] RET updateVariables() [L104] CALL step() [L40] unsigned long int stepLocal_2 = last_1_var_1_12 / var_1_3; [L41] COND TRUE stepLocal_2 != (last_1_var_1_18 - 64) [L42] var_1_8 = ((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11))) [L46] COND FALSE !((- (var_1_13 / 0.6f)) > ((var_1_14 + 3.25f) / ((((var_1_15) < (var_1_16)) ? (var_1_15) : (var_1_16))))) [L49] var_1_12 = (var_1_17 - var_1_10) [L51] var_1_18 = var_1_11 [L52] var_1_7 = var_1_18 [L53] signed long int stepLocal_1 = - var_1_3; [L54] signed long int stepLocal_0 = var_1_7 / var_1_3; [L55] COND FALSE !(stepLocal_0 >= var_1_7) [L104] RET step() [L105] CALL, EXPR property() [L95-L96] return ((((((var_1_7 / var_1_3) >= var_1_7) ? (((- var_1_3) > var_1_7) ? (var_1_1 == ((unsigned short int) ((((var_1_8) < (var_1_18)) ? (var_1_8) : (var_1_18))))) : 1) : 1) && (var_1_7 == ((unsigned short int) var_1_18))) && (((last_1_var_1_12 / var_1_3) != (last_1_var_1_18 - 64)) ? (var_1_8 == ((unsigned char) ((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11))))) : (var_1_8 == ((unsigned char) ((((var_1_11) < (var_1_10)) ? (var_1_11) : (var_1_10))))))) && (((- (var_1_13 / 0.6f)) > ((var_1_14 + 3.25f) / ((((var_1_15) < (var_1_16)) ? (var_1_15) : (var_1_16))))) ? (var_1_12 == ((unsigned long int) (500u + ((((var_1_10) < (var_1_8)) ? (var_1_10) : (var_1_8)))))) : (var_1_12 == ((unsigned long int) (var_1_17 - var_1_10))))) && (var_1_18 == ((unsigned char) var_1_11)) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=4294967040, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=-2147483648, var_1_17=4294967294, var_1_18=1, var_1_1=5, var_1_3=-1, var_1_7=1, var_1_8=254] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=10, last_1_var_1_18=0, var_1_10=254, var_1_11=1, var_1_12=4294967040, var_1_13=-2147483648, var_1_14=-2147483648, var_1_15=2147483647, var_1_16=-2147483648, var_1_17=4294967294, var_1_18=1, var_1_1=5, var_1_3=-1, var_1_7=1, var_1_8=254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 19, 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=36occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 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 23:51:19,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/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_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/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_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/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_bb81e05b-d2db-4c6e-9a7d-732f201452d1/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 d641f0fce6003e45544d7b313fe1ff9fa273efb3a1cdf3caa63db5b3b8db2e1d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:51:22,594 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:51:22,721 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:51:22,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:51:22,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:51:22,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:51:22,754 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:51:22,755 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:51:22,755 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:51:22,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:51:22,757 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:51:22,757 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:51:22,758 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:51:22,759 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:51:22,759 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:51:22,760 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:51:22,761 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:51:22,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:51:22,762 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:51:22,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:51:22,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:51:22,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:51:22,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:51:22,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:51:22,766 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:51:22,766 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:51:22,767 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:51:22,767 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:51:22,768 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:51:22,769 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:51:22,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:51:22,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:51:22,770 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:51:22,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:51:22,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:51:22,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:51:22,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:51:22,771 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:51:22,771 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:51:22,772 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:51:22,772 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:51:22,772 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:51:22,773 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:51:22,773 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:51:22,773 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_bb81e05b-d2db-4c6e-9a7d-732f201452d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d641f0fce6003e45544d7b313fe1ff9fa273efb3a1cdf3caa63db5b3b8db2e1d [2023-11-24 23:51:23,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:51:23,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:51:23,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:51:23,209 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:51:23,209 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:51:23,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-4.i [2023-11-24 23:51:26,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:51:26,772 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:51:26,773 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-4.i [2023-11-24 23:51:26,785 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/data/42b0131fa/73ca21b177b146e29b402c9e70e36909/FLAG4bb78ced4 [2023-11-24 23:51:26,806 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/data/42b0131fa/73ca21b177b146e29b402c9e70e36909 [2023-11-24 23:51:26,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:51:26,814 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:51:26,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:51:26,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:51:26,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:51:26,823 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:51:26" (1/1) ... [2023-11-24 23:51:26,824 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@237f72cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:26, skipping insertion in model container [2023-11-24 23:51:26,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:51:26" (1/1) ... [2023-11-24 23:51:26,862 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:51:27,060 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_bb81e05b-d2db-4c6e-9a7d-732f201452d1/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-4.i[915,928] [2023-11-24 23:51:27,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:27,161 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:51:27,176 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_bb81e05b-d2db-4c6e-9a7d-732f201452d1/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-4.i[915,928] [2023-11-24 23:51:27,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:27,238 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:51:27,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27 WrapperNode [2023-11-24 23:51:27,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:51:27,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:27,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:51:27,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:51:27,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,316 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 108 [2023-11-24 23:51:27,317 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:27,318 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:51:27,320 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:51:27,320 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:51:27,330 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,352 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:51:27,388 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:51:27,388 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:51:27,388 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:51:27,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:51:27,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:51:27,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:51:27,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:51:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:51:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:51:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:51:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:51:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:51:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:51:27,584 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:51:27,587 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:51:34,279 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:51:34,337 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:51:34,338 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:51:34,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:34 BoogieIcfgContainer [2023-11-24 23:51:34,339 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:51:34,341 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:51:34,342 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:51:34,345 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:51:34,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:51:26" (1/3) ... [2023-11-24 23:51:34,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216fd8ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:34, skipping insertion in model container [2023-11-24 23:51:34,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (2/3) ... [2023-11-24 23:51:34,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216fd8ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:34, skipping insertion in model container [2023-11-24 23:51:34,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:34" (3/3) ... [2023-11-24 23:51:34,349 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-4.i [2023-11-24 23:51:34,370 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:51:34,370 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:51:34,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:51:34,428 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;@7e9fb628, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:51:34,428 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:51:34,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-24 23:51:34,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-24 23:51:34,447 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:34,448 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:51:34,449 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:51:34,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:34,455 INFO L85 PathProgramCache]: Analyzing trace with hash -420194955, now seen corresponding path program 1 times [2023-11-24 23:51:34,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:51:34,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086998782] [2023-11-24 23:51:34,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:34,470 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 23:51:34,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:51:34,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/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 23:51:34,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/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 23:51:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:51:35,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:51:35,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:51:35,382 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2023-11-24 23:51:35,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:51:35,384 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:51:35,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086998782] [2023-11-24 23:51:35,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2086998782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:51:35,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:51:35,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:51:35,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139992825] [2023-11-24 23:51:35,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:51:35,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:51:35,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:51:35,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:51:35,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:51:35,436 INFO L87 Difference]: Start difference. First operand has 45 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-24 23:51:38,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:51:38,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:51:38,160 INFO L93 Difference]: Finished difference Result 87 states and 157 transitions. [2023-11-24 23:51:38,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:51:38,284 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 112 [2023-11-24 23:51:38,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:51:38,293 INFO L225 Difference]: With dead ends: 87 [2023-11-24 23:51:38,293 INFO L226 Difference]: Without dead ends: 43 [2023-11-24 23:51:38,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 111 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 23:51:38,301 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-24 23:51:38,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2023-11-24 23:51:38,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-24 23:51:38,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-24 23:51:38,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-24 23:51:38,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 65 transitions. [2023-11-24 23:51:38,348 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 65 transitions. Word has length 112 [2023-11-24 23:51:38,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:51:38,349 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 65 transitions. [2023-11-24 23:51:38,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-24 23:51:38,349 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 65 transitions. [2023-11-24 23:51:38,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-24 23:51:38,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:38,353 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:51:38,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/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)] Forceful destruction successful, exit code 0 [2023-11-24 23:51:38,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/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 23:51:38,565 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:51:38,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:38,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2019897041, now seen corresponding path program 1 times [2023-11-24 23:51:38,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:51:38,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929383037] [2023-11-24 23:51:38,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:38,567 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 23:51:38,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:51:38,569 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/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 23:51:38,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/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 23:51:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:51:39,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-24 23:51:39,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:51:43,816 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 150 proven. 48 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2023-11-24 23:51:43,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:51:46,578 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:51:46,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929383037] [2023-11-24 23:51:46,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929383037] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:51:46,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [244079313] [2023-11-24 23:51:46,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:46,580 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:51:46,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:51:46,606 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:51:46,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb81e05b-d2db-4c6e-9a7d-732f201452d1/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 23:51:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:51:47,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 23:51:47,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:51:50,648 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-24 23:51:50,648 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:51:50,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [244079313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:51:50,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 23:51:50,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 8 [2023-11-24 23:51:50,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873594326] [2023-11-24 23:51:50,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:51:50,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:51:50,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:51:50,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:51:50,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-24 23:51:50,653 INFO L87 Difference]: Start difference. First operand 43 states and 65 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-24 23:51:55,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:51:58,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:52:00,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:52:02,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:52:05,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:52:07,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:52:10,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:52:12,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:52:14,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []