./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire --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 a8e8864fbe413b3462ae8de456d5394de90101cbca5bf1017bcb2949274e710c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:32:21,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:32:21,492 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:32:21,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:32:21,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:32:21,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:32:21,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:32:21,545 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:32:21,546 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:32:21,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:32:21,551 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:32:21,552 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:32:21,552 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:32:21,554 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:32:21,554 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:32:21,555 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:32:21,555 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:32:21,556 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:32:21,556 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:32:21,556 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:32:21,557 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:32:21,557 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:32:21,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:32:21,559 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:32:21,559 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:32:21,559 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:32:21,560 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:32:21,560 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:32:21,561 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:32:21,561 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:32:21,562 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:32:21,562 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:32:21,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:32:21,563 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:32:21,563 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:32:21,563 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:32:21,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:32:21,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:21,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:32:21,564 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:32:21,565 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:32:21,565 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:32:21,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:32:21,565 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:32:21,566 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:32:21,566 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:32:21,566 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:32:21,566 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_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8e8864fbe413b3462ae8de456d5394de90101cbca5bf1017bcb2949274e710c [2023-11-23 21:32:21,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:32:21,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:32:21,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:32:21,925 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:32:21,926 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:32:21,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i [2023-11-23 21:32:24,951 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:32:25,164 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:32:25,165 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i [2023-11-23 21:32:25,174 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/data/40608a53d/64dc23214b63466dbba58ae1af657ae6/FLAG363745afb [2023-11-23 21:32:25,188 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/data/40608a53d/64dc23214b63466dbba58ae1af657ae6 [2023-11-23 21:32:25,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:32:25,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:32:25,194 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:25,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:32:25,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:32:25,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:25" (1/1) ... [2023-11-23 21:32:25,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1722a250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:25, skipping insertion in model container [2023-11-23 21:32:25,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:25" (1/1) ... [2023-11-23 21:32:25,256 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:32:25,399 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_e603bace-9b0d-42a4-86ce-5667394090e2/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i[916,929] [2023-11-23 21:32:25,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:25,466 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:32:25,479 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_e603bace-9b0d-42a4-86ce-5667394090e2/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i[916,929] [2023-11-23 21:32:25,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:25,529 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:32:25,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:25 WrapperNode [2023-11-23 21:32:25,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:25,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:25,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:32:25,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:32:25,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:25" (1/1) ... [2023-11-23 21:32:25,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:25" (1/1) ... [2023-11-23 21:32:25,589 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 172 [2023-11-23 21:32:25,590 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:25,591 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:32:25,591 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:32:25,591 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:32:25,601 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:25" (1/1) ... [2023-11-23 21:32:25,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:25" (1/1) ... [2023-11-23 21:32:25,604 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:25" (1/1) ... [2023-11-23 21:32:25,604 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:25" (1/1) ... [2023-11-23 21:32:25,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:25" (1/1) ... [2023-11-23 21:32:25,618 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:25" (1/1) ... [2023-11-23 21:32:25,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:25" (1/1) ... [2023-11-23 21:32:25,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:25" (1/1) ... [2023-11-23 21:32:25,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:32:25,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:32:25,645 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:32:25,645 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:32:25,646 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:25" (1/1) ... [2023-11-23 21:32:25,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:25,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:25,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:32:25,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:32:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:32:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:32:25,721 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:32:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:32:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:32:25,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:32:25,805 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:32:25,806 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:32:26,281 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:32:26,639 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:32:26,639 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:32:26,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:26 BoogieIcfgContainer [2023-11-23 21:32:26,642 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:32:26,646 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:32:26,646 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:32:26,650 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:32:26,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:32:25" (1/3) ... [2023-11-23 21:32:26,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e1ed0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:26, skipping insertion in model container [2023-11-23 21:32:26,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:25" (2/3) ... [2023-11-23 21:32:26,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e1ed0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:26, skipping insertion in model container [2023-11-23 21:32:26,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:26" (3/3) ... [2023-11-23 21:32:26,655 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-9.i [2023-11-23 21:32:26,677 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:32:26,678 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:32:26,732 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:32:26,739 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;@65984ada, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:32:26,739 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:32:26,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 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) [2023-11-23 21:32:26,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-23 21:32:26,755 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:26,755 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, 1] [2023-11-23 21:32:26,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:26,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:26,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1783709694, now seen corresponding path program 1 times [2023-11-23 21:32:26,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:26,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493888065] [2023-11-23 21:32:26,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:26,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:26,910 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:32:26,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1153982339] [2023-11-23 21:32:26,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:26,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:32:26,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:26,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:32:26,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:32:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:32:27,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:32:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:32:27,274 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:32:27,276 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:32:27,278 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:32:27,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:32:27,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:32:27,502 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:32:27,506 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:32:27,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:32:27 BoogieIcfgContainer [2023-11-23 21:32:27,624 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:32:27,624 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:32:27,624 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:32:27,625 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:32:27,625 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:26" (3/4) ... [2023-11-23 21:32:27,627 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:32:27,628 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:32:27,632 INFO L158 Benchmark]: Toolchain (without parser) took 2439.42ms. Allocated memory was 157.3MB in the beginning and 190.8MB in the end (delta: 33.6MB). Free memory was 109.3MB in the beginning and 94.2MB in the end (delta: 15.0MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2023-11-23 21:32:27,633 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 157.3MB. Free memory is still 129.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:32:27,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.38ms. Allocated memory is still 157.3MB. Free memory was 109.3MB in the beginning and 96.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:32:27,636 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.19ms. Allocated memory is still 157.3MB. Free memory was 96.0MB in the beginning and 93.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:32:27,641 INFO L158 Benchmark]: Boogie Preprocessor took 52.70ms. Allocated memory is still 157.3MB. Free memory was 93.1MB in the beginning and 91.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:32:27,643 INFO L158 Benchmark]: RCFGBuilder took 997.75ms. Allocated memory was 157.3MB in the beginning and 190.8MB in the end (delta: 33.6MB). Free memory was 91.3MB in the beginning and 134.1MB in the end (delta: -42.7MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2023-11-23 21:32:27,644 INFO L158 Benchmark]: TraceAbstraction took 977.48ms. Allocated memory is still 190.8MB. Free memory was 134.1MB in the beginning and 94.2MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-23 21:32:27,645 INFO L158 Benchmark]: Witness Printer took 4.09ms. Allocated memory is still 190.8MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:32:27,654 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 157.3MB. Free memory is still 129.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.38ms. Allocated memory is still 157.3MB. Free memory was 109.3MB in the beginning and 96.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.19ms. Allocated memory is still 157.3MB. Free memory was 96.0MB in the beginning and 93.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.70ms. Allocated memory is still 157.3MB. Free memory was 93.1MB in the beginning and 91.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 997.75ms. Allocated memory was 157.3MB in the beginning and 190.8MB in the end (delta: 33.6MB). Free memory was 91.3MB in the beginning and 134.1MB in the end (delta: -42.7MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * TraceAbstraction took 977.48ms. Allocated memory is still 190.8MB. Free memory was 134.1MB in the beginning and 94.2MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 4.09ms. Allocated memory is still 190.8MB. Free memory is still 94.2MB. 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 someBinaryDOUBLEComparisonOperation at line 46, overapproximation of shiftRight at line 42, overapproximation of shiftLeft at line 43. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 5.5; [L23] signed char var_1_2 = 100; [L24] signed short int var_1_3 = 1; [L25] signed long int var_1_4 = -16; [L26] signed long int var_1_5 = -64; [L27] signed char var_1_6 = 10; [L28] signed char var_1_7 = 5; [L29] double var_1_8 = 16.25; [L30] double var_1_9 = 1.8; [L31] unsigned char var_1_10 = 32; [L32] unsigned char var_1_11 = 64; [L33] unsigned short int var_1_12 = 16; [L34] unsigned long int var_1_13 = 128; [L35] unsigned char var_1_15 = 1; [L36] unsigned short int var_1_16 = 256; [L37] unsigned short int var_1_17 = 8; [L38] signed char var_1_18 = -2; [L129] isInitial = 1 [L130] FCALL initially() [L131] COND TRUE 1 [L132] FCALL updateLastVariables() [L133] CALL updateVariables() [L89] var_1_2 = __VERIFIER_nondet_char() [L90] CALL assume_abort_if_not(var_1_2 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_2 >= -128) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L91] CALL assume_abort_if_not(var_1_2 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_2 <= 127) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L92] var_1_3 = __VERIFIER_nondet_short() [L93] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L94] CALL assume_abort_if_not(var_1_3 <= 8) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_3 <= 8) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L95] var_1_4 = __VERIFIER_nondet_long() [L96] CALL assume_abort_if_not(var_1_4 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_4 >= -2147483648) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L97] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L98] var_1_5 = __VERIFIER_nondet_long() [L99] CALL assume_abort_if_not(var_1_5 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_5 >= -2147483648) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L100] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L101] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L102] var_1_6 = __VERIFIER_nondet_char() [L103] CALL assume_abort_if_not(var_1_6 >= 6) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_6 >= 6) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L104] CALL assume_abort_if_not(var_1_6 <= 12) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_6 <= 12) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L105] var_1_7 = __VERIFIER_nondet_char() [L106] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L107] CALL assume_abort_if_not(var_1_7 <= 6) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_7 <= 6) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L108] var_1_8 = __VERIFIER_nondet_double() [L109] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0, var_1_9=9/5] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0, var_1_9=9/5] [L110] var_1_9 = __VERIFIER_nondet_double() [L111] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0] [L112] var_1_11 = __VERIFIER_nondet_uchar() [L113] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=32, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0] [L114] CALL assume_abort_if_not(var_1_11 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=1, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_11 <= 254) VAL [isInitial=1, var_1_10=32, var_1_11=1, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0] [L115] var_1_15 = __VERIFIER_nondet_uchar() [L116] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=1, var_1_12=16, var_1_13=128, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=1, var_1_12=16, var_1_13=128, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0] [L117] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=1, var_1_12=16, var_1_13=128, var_1_15=0, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=32, var_1_11=1, var_1_12=16, var_1_13=128, var_1_15=0, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0] [L118] var_1_17 = __VERIFIER_nondet_ushort() [L119] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=1, var_1_12=16, var_1_13=128, var_1_15=0, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=1, var_1_12=16, var_1_13=128, var_1_15=0, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0] [L120] CALL assume_abort_if_not(var_1_17 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=1, var_1_12=16, var_1_13=128, var_1_15=0, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(var_1_17 <= 65535) VAL [isInitial=1, var_1_10=32, var_1_11=1, var_1_12=16, var_1_13=128, var_1_15=0, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0] [L133] RET updateVariables() [L134] CALL step() [L42] EXPR var_1_2 >> var_1_3 [L42] signed long int stepLocal_1 = var_1_2 >> var_1_3; [L43] EXPR var_1_3 << (var_1_6 - var_1_7) [L43] signed long int stepLocal_0 = var_1_3 << (var_1_6 - var_1_7); [L44] COND TRUE stepLocal_1 == (var_1_4 / var_1_5) [L45] COND FALSE !(stepLocal_0 > ((var_1_4 & 0) * var_1_5)) [L48] var_1_1 = var_1_8 [L51] signed char stepLocal_2 = var_1_6; [L52] COND FALSE !(stepLocal_2 <= (var_1_4 + var_1_7)) [L55] var_1_10 = (var_1_3 + var_1_7) [L57] COND FALSE !(((var_1_6 >> 2) * var_1_10) > var_1_4) [L60] EXPR 1 << var_1_2 [L60] COND TRUE (1 << var_1_2) != (-500 / -100) [L61] COND FALSE !((var_1_6 - var_1_3) >= (var_1_10 + 256)) [L64] var_1_13 = var_1_12 [L69] signed long int stepLocal_4 = (((var_1_11) > ((var_1_12 * -64))) ? (var_1_11) : ((var_1_12 * -64))); [L70] unsigned short int stepLocal_3 = var_1_17; [L71] COND TRUE (- var_1_9) <= var_1_8 [L72] COND FALSE !(\read(var_1_15)) [L81] var_1_16 = var_1_3 [L86] var_1_18 = var_1_3 [L134] RET step() [L135] CALL, EXPR property() [L125] EXPR var_1_2 >> var_1_3 [L125] EXPR ((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1 [L125] EXPR var_1_3 << (var_1_6 - var_1_7) [L125] EXPR ((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1 [L125] EXPR (((((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (var_1_4 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * var_1_10) > var_1_4) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_2) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_10 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6))) [L125-L126] return (((((((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (var_1_4 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * var_1_10) > var_1_4) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_2) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_10 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6)))) && (((- var_1_9) <= var_1_8) ? (var_1_15 ? ((((((var_1_11) > ((var_1_12 * -64))) ? (var_1_11) : ((var_1_12 * -64)))) < var_1_2) ? ((var_1_17 == var_1_10) ? (var_1_16 == ((unsigned short int) var_1_11)) : 1) : (var_1_16 == ((unsigned short int) 256))) : (var_1_16 == ((unsigned short int) var_1_3))) : (var_1_16 == ((unsigned short int) var_1_10)))) && (var_1_18 == ((signed char) var_1_3)) ; [L135] RET, EXPR property() [L135] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=16, var_1_13=16, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0, var_1_8=2, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=16, var_1_13=16, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=2, var_1_6=6, var_1_7=0, var_1_8=2, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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=41occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 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 [2023-11-23 21:32:27,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/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_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire --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 a8e8864fbe413b3462ae8de456d5394de90101cbca5bf1017bcb2949274e710c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:32:30,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:32:30,465 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:32:30,474 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:32:30,474 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:32:30,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:32:30,522 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:32:30,522 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:32:30,523 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:32:30,528 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:32:30,528 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:32:30,529 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:32:30,529 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:32:30,531 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:32:30,531 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:32:30,532 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:32:30,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:32:30,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:32:30,534 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:32:30,535 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:32:30,535 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:32:30,536 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:32:30,536 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:32:30,537 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:32:30,537 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:32:30,538 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:32:30,538 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:32:30,538 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:32:30,539 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:32:30,539 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:32:30,541 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:32:30,541 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:32:30,541 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:32:30,542 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:32:30,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:30,542 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:32:30,543 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:32:30,543 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:32:30,543 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:32:30,544 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:32:30,544 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:32:30,545 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:32:30,545 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:32:30,545 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:32:30,546 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_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8e8864fbe413b3462ae8de456d5394de90101cbca5bf1017bcb2949274e710c [2023-11-23 21:32:30,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:32:30,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:32:30,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:32:30,968 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:32:30,969 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:32:30,971 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i [2023-11-23 21:32:34,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:32:34,421 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:32:34,423 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i [2023-11-23 21:32:34,434 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/data/0e0066f4f/1ec407244baf43d9ab65562b0d547474/FLAG50d297d0b [2023-11-23 21:32:34,448 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/data/0e0066f4f/1ec407244baf43d9ab65562b0d547474 [2023-11-23 21:32:34,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:32:34,452 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:32:34,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:34,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:32:34,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:32:34,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:34" (1/1) ... [2023-11-23 21:32:34,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@298ca485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:34, skipping insertion in model container [2023-11-23 21:32:34,467 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:34" (1/1) ... [2023-11-23 21:32:34,500 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:32:34,699 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_e603bace-9b0d-42a4-86ce-5667394090e2/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i[916,929] [2023-11-23 21:32:34,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:34,810 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:32:34,832 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_e603bace-9b0d-42a4-86ce-5667394090e2/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i[916,929] [2023-11-23 21:32:34,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:34,926 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:32:34,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:34 WrapperNode [2023-11-23 21:32:34,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:34,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:34,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:32:34,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:32:34,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:34" (1/1) ... [2023-11-23 21:32:34,948 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:34" (1/1) ... [2023-11-23 21:32:34,992 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133 [2023-11-23 21:32:34,992 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:35,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:32:35,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:32:35,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:32:35,045 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:34" (1/1) ... [2023-11-23 21:32:35,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:34" (1/1) ... [2023-11-23 21:32:35,050 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:34" (1/1) ... [2023-11-23 21:32:35,050 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:34" (1/1) ... [2023-11-23 21:32:35,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:34" (1/1) ... [2023-11-23 21:32:35,064 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:34" (1/1) ... [2023-11-23 21:32:35,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:34" (1/1) ... [2023-11-23 21:32:35,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:34" (1/1) ... [2023-11-23 21:32:35,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:32:35,075 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:32:35,075 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:32:35,075 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:32:35,076 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:34" (1/1) ... [2023-11-23 21:32:35,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:35,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:35,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:32:35,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:32:35,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:32:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:32:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:32:35,163 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:32:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:32:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:32:35,290 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:32:35,293 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:32:35,776 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:32:35,848 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:32:35,848 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:32:35,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:35 BoogieIcfgContainer [2023-11-23 21:32:35,849 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:32:35,853 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:32:35,853 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:32:35,857 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:32:35,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:32:34" (1/3) ... [2023-11-23 21:32:35,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29043bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:35, skipping insertion in model container [2023-11-23 21:32:35,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:34" (2/3) ... [2023-11-23 21:32:35,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29043bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:35, skipping insertion in model container [2023-11-23 21:32:35,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:35" (3/3) ... [2023-11-23 21:32:35,860 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-9.i [2023-11-23 21:32:35,882 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:32:35,882 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:32:35,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:32:35,943 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;@2df6bc97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:32:35,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:32:35,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 34 states have internal predecessors, (48), 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) [2023-11-23 21:32:35,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-23 21:32:35,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:35,966 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, 1, 1, 1] [2023-11-23 21:32:35,966 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:35,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:35,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1555967757, now seen corresponding path program 1 times [2023-11-23 21:32:35,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:32:35,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625149081] [2023-11-23 21:32:35,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:35,993 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 [2023-11-23 21:32:35,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:32:35,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:32:36,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:32:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:36,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:32:36,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:36,421 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2023-11-23 21:32:36,421 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:32:36,422 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:32:36,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625149081] [2023-11-23 21:32:36,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625149081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:36,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:36,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:32:36,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433622926] [2023-11-23 21:32:36,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:36,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:32:36,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:32:36,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:32:36,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:32:36,498 INFO L87 Difference]: Start difference. First operand has 57 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 34 states have internal predecessors, (48), 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 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 21:32:36,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:36,603 INFO L93 Difference]: Finished difference Result 111 states and 199 transitions. [2023-11-23 21:32:36,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:32:36,610 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 128 [2023-11-23 21:32:36,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:36,618 INFO L225 Difference]: With dead ends: 111 [2023-11-23 21:32:36,618 INFO L226 Difference]: Without dead ends: 55 [2023-11-23 21:32:36,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:32:36,626 INFO L413 NwaCegarLoop]: 81 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, 81 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:36,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:32:36,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-23 21:32:36,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-23 21:32:36,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 32 states have (on average 1.3125) internal successors, (42), 32 states have internal predecessors, (42), 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) [2023-11-23 21:32:36,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 84 transitions. [2023-11-23 21:32:36,674 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 84 transitions. Word has length 128 [2023-11-23 21:32:36,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:36,675 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 84 transitions. [2023-11-23 21:32:36,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 21:32:36,675 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 84 transitions. [2023-11-23 21:32:36,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-23 21:32:36,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:36,679 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, 1, 1, 1, 1] [2023-11-23 21:32:36,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:32:36,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:32:36,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:36,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:36,887 INFO L85 PathProgramCache]: Analyzing trace with hash 644699078, now seen corresponding path program 1 times [2023-11-23 21:32:36,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:32:36,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540928894] [2023-11-23 21:32:36,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:36,888 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 [2023-11-23 21:32:36,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:32:36,913 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:32:36,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e603bace-9b0d-42a4-86ce-5667394090e2/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:32:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:37,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-23 21:32:37,160 INFO L285 TraceCheckSpWp]: Computing forward predicates...