./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-57.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/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_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/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_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/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 e9e4cb45c95e56f11e60a0a73722f1fb54adee905267e8a641b1bf27c5126193 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:03:45,264 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:03:45,328 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-25 00:03:45,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:03:45,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:03:45,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:03:45,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:03:45,363 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:03:45,364 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:03:45,365 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:03:45,365 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:03:45,366 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:03:45,367 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:03:45,367 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:03:45,368 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:03:45,369 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:03:45,369 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:03:45,370 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:03:45,371 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:03:45,371 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:03:45,372 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:03:45,373 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:03:45,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:03:45,374 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:03:45,375 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:03:45,375 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:03:45,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:03:45,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:03:45,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:03:45,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:03:45,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:03:45,378 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:03:45,379 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:03:45,379 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:03:45,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:03:45,380 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:03:45,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:03:45,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:03:45,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:03:45,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:03:45,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:03:45,382 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:03:45,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:03:45,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:03:45,383 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:03:45,384 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:03:45,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:03:45,384 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_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9e4cb45c95e56f11e60a0a73722f1fb54adee905267e8a641b1bf27c5126193 [2023-11-25 00:03:45,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:03:45,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:03:45,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:03:45,679 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:03:45,680 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:03:45,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-57.i [2023-11-25 00:03:48,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:03:49,009 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:03:49,009 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-57.i [2023-11-25 00:03:49,020 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/data/45ca00b90/6b4eef57fe2947628261188492cc273a/FLAG8b18c9d0f [2023-11-25 00:03:49,034 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/data/45ca00b90/6b4eef57fe2947628261188492cc273a [2023-11-25 00:03:49,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:03:49,038 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:03:49,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:03:49,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:03:49,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:03:49,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:03:49" (1/1) ... [2023-11-25 00:03:49,047 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60761a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:49, skipping insertion in model container [2023-11-25 00:03:49,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:03:49" (1/1) ... [2023-11-25 00:03:49,083 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:03:49,232 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_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-57.i[915,928] [2023-11-25 00:03:49,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:03:49,312 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:03:49,325 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_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-57.i[915,928] [2023-11-25 00:03:49,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:03:49,385 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:03:49,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:49 WrapperNode [2023-11-25 00:03:49,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:03:49,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:03:49,387 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:03:49,387 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:03:49,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:49" (1/1) ... [2023-11-25 00:03:49,407 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:49" (1/1) ... [2023-11-25 00:03:49,460 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 202 [2023-11-25 00:03:49,461 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:03:49,462 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:03:49,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:03:49,462 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:03:49,472 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:49" (1/1) ... [2023-11-25 00:03:49,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:49" (1/1) ... [2023-11-25 00:03:49,481 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:49" (1/1) ... [2023-11-25 00:03:49,481 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:49" (1/1) ... [2023-11-25 00:03:49,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:49" (1/1) ... [2023-11-25 00:03:49,501 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:49" (1/1) ... [2023-11-25 00:03:49,505 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:49" (1/1) ... [2023-11-25 00:03:49,508 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:49" (1/1) ... [2023-11-25 00:03:49,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:03:49,517 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:03:49,517 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:03:49,518 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:03:49,518 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:49" (1/1) ... [2023-11-25 00:03:49,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:03:49,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:49,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:03:49,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:03:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:03:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:03:49,617 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:03:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:03:49,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:03:49,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:03:49,746 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:03:49,749 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:03:50,290 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:03:50,703 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:03:50,703 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:03:50,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:03:50 BoogieIcfgContainer [2023-11-25 00:03:50,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:03:50,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:03:50,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:03:50,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:03:50,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:03:49" (1/3) ... [2023-11-25 00:03:50,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326e68d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:03:50, skipping insertion in model container [2023-11-25 00:03:50,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:49" (2/3) ... [2023-11-25 00:03:50,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326e68d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:03:50, skipping insertion in model container [2023-11-25 00:03:50,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:03:50" (3/3) ... [2023-11-25 00:03:50,721 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-57.i [2023-11-25 00:03:50,742 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:03:50,742 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:03:50,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:03:50,805 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;@a649242, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:03:50,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:03:50,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-25 00:03:50,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-25 00:03:50,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:50,824 INFO L195 NwaCegarLoop]: trace histogram [26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:03:50,824 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:03:50,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:50,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1640428489, now seen corresponding path program 1 times [2023-11-25 00:03:50,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:50,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81835537] [2023-11-25 00:03:50,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:50,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:51,088 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:51,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1685835947] [2023-11-25 00:03:51,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:51,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:51,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:51,098 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:51,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:03:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-11-25 00:03:51,341 WARN L124 FreeRefinementEngine]: Strategy SIFA_TAIPAN was unsuccessful and could not determine trace feasibility [2023-11-25 00:03:51,344 INFO L360 BasicCegarLoop]: Counterexample might be feasible [2023-11-25 00:03:51,352 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-25 00:03:51,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:51,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-25 00:03:51,560 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-25 00:03:51,563 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:03:51,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:03:51 BoogieIcfgContainer [2023-11-25 00:03:51,592 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:03:51,593 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:03:51,593 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:03:51,593 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:03:51,594 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:03:50" (3/4) ... [2023-11-25 00:03:51,596 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:03:51,597 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:03:51,598 INFO L158 Benchmark]: Toolchain (without parser) took 2559.76ms. Allocated memory is still 138.4MB. Free memory was 108.8MB in the beginning and 91.1MB in the end (delta: 17.7MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-11-25 00:03:51,599 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 109.1MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:03:51,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.91ms. Allocated memory is still 138.4MB. Free memory was 108.8MB in the beginning and 94.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-25 00:03:51,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.69ms. Allocated memory is still 138.4MB. Free memory was 94.6MB in the beginning and 90.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-25 00:03:51,601 INFO L158 Benchmark]: Boogie Preprocessor took 52.78ms. Allocated memory is still 138.4MB. Free memory was 90.0MB in the beginning and 87.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:03:51,601 INFO L158 Benchmark]: RCFGBuilder took 1188.38ms. Allocated memory is still 138.4MB. Free memory was 87.5MB in the beginning and 69.6MB in the end (delta: 17.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-25 00:03:51,602 INFO L158 Benchmark]: TraceAbstraction took 882.67ms. Allocated memory is still 138.4MB. Free memory was 68.9MB in the beginning and 91.1MB in the end (delta: -22.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:03:51,602 INFO L158 Benchmark]: Witness Printer took 4.25ms. Allocated memory is still 138.4MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:03:51,605 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 109.1MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.91ms. Allocated memory is still 138.4MB. Free memory was 108.8MB in the beginning and 94.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.69ms. Allocated memory is still 138.4MB. Free memory was 94.6MB in the beginning and 90.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.78ms. Allocated memory is still 138.4MB. Free memory was 90.0MB in the beginning and 87.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1188.38ms. Allocated memory is still 138.4MB. Free memory was 87.5MB in the beginning and 69.6MB in the end (delta: 17.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 882.67ms. Allocated memory is still 138.4MB. Free memory was 68.9MB in the beginning and 91.1MB in the end (delta: -22.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.25ms. Allocated memory is still 138.4MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of someBinaryFLOATComparisonOperation at line 133, overapproximation of someBinaryArithmeticDOUBLEoperation at line 48, overapproximation of bitwiseAnd at line 66, overapproximation of someBinaryDOUBLEComparisonOperation at line 50. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 5; [L23] signed char var_1_2 = -1; [L24] signed char var_1_3 = 10; [L25] signed long int var_1_5 = 5; [L26] unsigned char var_1_6 = 0; [L27] double var_1_7 = 24.8; [L28] double var_1_8 = 500.5; [L29] double var_1_9 = 2.4; [L30] double var_1_10 = 0.4; [L31] double var_1_11 = 255.8; [L32] double var_1_12 = 50.75; [L33] unsigned char var_1_13 = 4; [L34] unsigned char var_1_14 = 200; [L35] unsigned char var_1_15 = 25; [L36] unsigned char var_1_16 = 128; [L37] unsigned char var_1_17 = 64; [L38] unsigned char var_1_18 = 32; [L39] unsigned char var_1_19 = 32; [L40] unsigned long int var_1_20 = 1; [L41] float var_1_21 = 9999999999.2; [L42] double var_1_23 = 10.875; [L137] isInitial = 1 [L138] FCALL initially() [L139] COND TRUE 1 [L140] FCALL updateLastVariables() [L141] CALL updateVariables() [L88] var_1_2 = __VERIFIER_nondet_char() [L89] CALL assume_abort_if_not(var_1_2 >= -1) [L20] COND TRUE !cond [L89] RET assume_abort_if_not(var_1_2 >= -1) [L90] CALL assume_abort_if_not(var_1_2 <= 127) [L20] COND TRUE !cond [L90] RET assume_abort_if_not(var_1_2 <= 127) [L91] var_1_3 = __VERIFIER_nondet_char() [L92] CALL assume_abort_if_not(var_1_3 >= 0) [L20] COND TRUE !cond [L92] RET assume_abort_if_not(var_1_3 >= 0) [L93] CALL assume_abort_if_not(var_1_3 <= 127) [L20] COND TRUE !cond [L93] RET assume_abort_if_not(var_1_3 <= 127) [L94] var_1_5 = __VERIFIER_nondet_long() [L95] CALL assume_abort_if_not(var_1_5 >= -2147483648) [L20] COND TRUE !cond [L95] RET assume_abort_if_not(var_1_5 >= -2147483648) [L96] CALL assume_abort_if_not(var_1_5 <= 2147483647) [L20] COND TRUE !cond [L96] RET assume_abort_if_not(var_1_5 <= 2147483647) [L97] CALL assume_abort_if_not(var_1_5 != 0) [L20] COND TRUE !cond [L97] RET assume_abort_if_not(var_1_5 != 0) [L98] var_1_6 = __VERIFIER_nondet_uchar() [L99] CALL assume_abort_if_not(var_1_6 >= 0) [L20] COND TRUE !cond [L99] RET assume_abort_if_not(var_1_6 >= 0) [L100] CALL assume_abort_if_not(var_1_6 <= 1) [L20] COND TRUE !cond [L100] RET assume_abort_if_not(var_1_6 <= 1) [L101] var_1_8 = __VERIFIER_nondet_double() [L102] CALL assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) [L20] COND TRUE !cond [L102] RET assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) [L103] var_1_9 = __VERIFIER_nondet_double() [L104] CALL assume_abort_if_not((var_1_9 >= -230584.3009213691390e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 2305843.009213691390e+12F && var_1_9 >= 1.0e-20F )) [L20] COND TRUE !cond [L104] RET assume_abort_if_not((var_1_9 >= -230584.3009213691390e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 2305843.009213691390e+12F && var_1_9 >= 1.0e-20F )) [L105] var_1_10 = __VERIFIER_nondet_double() [L106] CALL assume_abort_if_not((var_1_10 >= -230584.3009213691390e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 2305843.009213691390e+12F && var_1_10 >= 1.0e-20F )) [L20] COND TRUE !cond [L106] RET assume_abort_if_not((var_1_10 >= -230584.3009213691390e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 2305843.009213691390e+12F && var_1_10 >= 1.0e-20F )) [L107] var_1_11 = __VERIFIER_nondet_double() [L108] CALL assume_abort_if_not((var_1_11 >= -115292.1504606845700e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 1152921.504606845700e+12F && var_1_11 >= 1.0e-20F )) [L20] COND TRUE !cond [L108] RET assume_abort_if_not((var_1_11 >= -115292.1504606845700e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 1152921.504606845700e+12F && var_1_11 >= 1.0e-20F )) [L109] var_1_12 = __VERIFIER_nondet_double() [L110] CALL assume_abort_if_not((var_1_12 >= -115292.1504606845700e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 1152921.504606845700e+12F && var_1_12 >= 1.0e-20F )) [L20] COND TRUE !cond [L110] RET assume_abort_if_not((var_1_12 >= -115292.1504606845700e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 1152921.504606845700e+12F && var_1_12 >= 1.0e-20F )) [L111] var_1_14 = __VERIFIER_nondet_uchar() [L112] CALL assume_abort_if_not(var_1_14 >= 190) [L20] COND TRUE !cond [L112] RET assume_abort_if_not(var_1_14 >= 190) [L113] CALL assume_abort_if_not(var_1_14 <= 254) [L20] COND TRUE !cond [L113] RET assume_abort_if_not(var_1_14 <= 254) [L114] var_1_15 = __VERIFIER_nondet_uchar() [L115] CALL assume_abort_if_not(var_1_15 >= 0) [L20] COND TRUE !cond [L115] RET assume_abort_if_not(var_1_15 >= 0) [L116] CALL assume_abort_if_not(var_1_15 <= 63) [L20] COND TRUE !cond [L116] RET assume_abort_if_not(var_1_15 <= 63) [L117] var_1_16 = __VERIFIER_nondet_uchar() [L118] CALL assume_abort_if_not(var_1_16 >= 127) [L20] COND TRUE !cond [L118] RET assume_abort_if_not(var_1_16 >= 127) [L119] CALL assume_abort_if_not(var_1_16 <= 254) [L20] COND TRUE !cond [L119] RET assume_abort_if_not(var_1_16 <= 254) [L120] var_1_17 = __VERIFIER_nondet_uchar() [L121] CALL assume_abort_if_not(var_1_17 >= 0) [L20] COND TRUE !cond [L121] RET assume_abort_if_not(var_1_17 >= 0) [L122] CALL assume_abort_if_not(var_1_17 <= 64) [L20] COND TRUE !cond [L122] RET assume_abort_if_not(var_1_17 <= 64) [L123] var_1_18 = __VERIFIER_nondet_uchar() [L124] CALL assume_abort_if_not(var_1_18 >= 0) [L20] COND TRUE !cond [L124] RET assume_abort_if_not(var_1_18 >= 0) [L125] CALL assume_abort_if_not(var_1_18 <= 63) [L20] COND TRUE !cond [L125] RET assume_abort_if_not(var_1_18 <= 63) [L126] var_1_19 = __VERIFIER_nondet_uchar() [L127] CALL assume_abort_if_not(var_1_19 >= 0) [L20] COND TRUE !cond [L127] RET assume_abort_if_not(var_1_19 >= 0) [L128] CALL assume_abort_if_not(var_1_19 <= 63) [L20] COND TRUE !cond [L128] RET assume_abort_if_not(var_1_19 <= 63) [L141] RET updateVariables() [L142] CALL step() [L46] signed char stepLocal_0 = var_1_2; [L47] COND TRUE -256 <= stepLocal_0 [L48] var_1_7 = (var_1_8 + (((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))) + (var_1_11 + var_1_12))) [L54] COND FALSE !(var_1_11 <= var_1_9) [L57] COND TRUE (var_1_2 - var_1_3) > (var_1_13 / var_1_5) [L58] var_1_1 = (128 - var_1_3) [L66] EXPR (var_1_2 * var_1_13) & var_1_1 [L66] signed long int stepLocal_1 = (var_1_2 * var_1_13) & var_1_1; [L67] COND FALSE !(var_1_3 < stepLocal_1) [L70] EXPR var_1_1 & var_1_3 [L70] signed long int stepLocal_2 = var_1_1 & var_1_3; [L71] COND FALSE !((((((var_1_1) > (var_1_5)) ? (var_1_1) : (var_1_5))) + (var_1_1 / var_1_14)) <= stepLocal_2) [L78] var_1_21 = var_1_12 [L80] unsigned long int stepLocal_3 = var_1_20; [L81] COND TRUE var_1_1 > stepLocal_3 [L82] COND FALSE !(! (! var_1_6)) [L142] RET step() [L143] CALL, EXPR property() [L133] EXPR (((((var_1_2 - var_1_3) > (var_1_13 / var_1_5)) ? (var_1_1 == ((unsigned char) (128 - var_1_3))) : ((! var_1_6) ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3)))) && ((-256 <= var_1_2) ? (var_1_7 == ((double) (var_1_8 + (((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))) + (var_1_11 + var_1_12))))) : ((var_1_11 == var_1_9) ? (var_1_7 == ((double) var_1_8)) : 1))) && ((var_1_11 <= var_1_9) ? (var_1_13 == ((unsigned char) ((((((var_1_14 - var_1_15)) > (var_1_16)) ? ((var_1_14 - var_1_15)) : (var_1_16))) - (var_1_17 + ((((var_1_18) > (var_1_19)) ? (var_1_18) : (var_1_19))))))) : 1)) && ((var_1_3 < ((var_1_2 * var_1_13) & var_1_1)) ? (var_1_20 == ((unsigned long int) (((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18))) + var_1_14))) : 1) [L133] EXPR ((((((var_1_2 - var_1_3) > (var_1_13 / var_1_5)) ? (var_1_1 == ((unsigned char) (128 - var_1_3))) : ((! var_1_6) ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3)))) && ((-256 <= var_1_2) ? (var_1_7 == ((double) (var_1_8 + (((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))) + (var_1_11 + var_1_12))))) : ((var_1_11 == var_1_9) ? (var_1_7 == ((double) var_1_8)) : 1))) && ((var_1_11 <= var_1_9) ? (var_1_13 == ((unsigned char) ((((((var_1_14 - var_1_15)) > (var_1_16)) ? ((var_1_14 - var_1_15)) : (var_1_16))) - (var_1_17 + ((((var_1_18) > (var_1_19)) ? (var_1_18) : (var_1_19))))))) : 1)) && ((var_1_3 < ((var_1_2 * var_1_13) & var_1_1)) ? (var_1_20 == ((unsigned long int) (((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18))) + var_1_14))) : 1)) && (((((((var_1_1) > (var_1_5)) ? (var_1_1) : (var_1_5))) + (var_1_1 / var_1_14)) <= (var_1_1 & var_1_3)) ? (var_1_6 ? (var_1_21 == ((float) var_1_12)) : (var_1_21 == ((float) var_1_10))) : (var_1_21 == ((float) var_1_12))) [L133] EXPR var_1_1 & var_1_3 [L133] EXPR ((((((var_1_2 - var_1_3) > (var_1_13 / var_1_5)) ? (var_1_1 == ((unsigned char) (128 - var_1_3))) : ((! var_1_6) ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3)))) && ((-256 <= var_1_2) ? (var_1_7 == ((double) (var_1_8 + (((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))) + (var_1_11 + var_1_12))))) : ((var_1_11 == var_1_9) ? (var_1_7 == ((double) var_1_8)) : 1))) && ((var_1_11 <= var_1_9) ? (var_1_13 == ((unsigned char) ((((((var_1_14 - var_1_15)) > (var_1_16)) ? ((var_1_14 - var_1_15)) : (var_1_16))) - (var_1_17 + ((((var_1_18) > (var_1_19)) ? (var_1_18) : (var_1_19))))))) : 1)) && ((var_1_3 < ((var_1_2 * var_1_13) & var_1_1)) ? (var_1_20 == ((unsigned long int) (((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18))) + var_1_14))) : 1)) && (((((((var_1_1) > (var_1_5)) ? (var_1_1) : (var_1_5))) + (var_1_1 / var_1_14)) <= (var_1_1 & var_1_3)) ? (var_1_6 ? (var_1_21 == ((float) var_1_12)) : (var_1_21 == ((float) var_1_10))) : (var_1_21 == ((float) var_1_12))) [L133-L134] return (((((((var_1_2 - var_1_3) > (var_1_13 / var_1_5)) ? (var_1_1 == ((unsigned char) (128 - var_1_3))) : ((! var_1_6) ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3)))) && ((-256 <= var_1_2) ? (var_1_7 == ((double) (var_1_8 + (((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))) + (var_1_11 + var_1_12))))) : ((var_1_11 == var_1_9) ? (var_1_7 == ((double) var_1_8)) : 1))) && ((var_1_11 <= var_1_9) ? (var_1_13 == ((unsigned char) ((((((var_1_14 - var_1_15)) > (var_1_16)) ? ((var_1_14 - var_1_15)) : (var_1_16))) - (var_1_17 + ((((var_1_18) > (var_1_19)) ? (var_1_18) : (var_1_19))))))) : 1)) && ((var_1_3 < ((var_1_2 * var_1_13) & var_1_1)) ? (var_1_20 == ((unsigned long int) (((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18))) + var_1_14))) : 1)) && (((((((var_1_1) > (var_1_5)) ? (var_1_1) : (var_1_5))) + (var_1_1 / var_1_14)) <= (var_1_1 & var_1_3)) ? (var_1_6 ? (var_1_21 == ((float) var_1_12)) : (var_1_21 == ((float) var_1_10))) : (var_1_21 == ((float) var_1_12)))) && ((var_1_1 > var_1_20) ? ((! (! var_1_6)) ? (var_1_23 == ((double) var_1_8)) : 1) : 1) ; [L143] RET, EXPR property() [L143] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 26, 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=50occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 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 [2023-11-25 00:03:51,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/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_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/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_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/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 e9e4cb45c95e56f11e60a0a73722f1fb54adee905267e8a641b1bf27c5126193 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:03:54,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:03:54,321 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-25 00:03:54,330 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:03:54,331 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:03:54,371 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:03:54,372 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:03:54,372 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:03:54,373 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:03:54,378 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:03:54,379 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:03:54,379 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:03:54,380 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:03:54,381 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:03:54,382 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:03:54,382 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:03:54,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:03:54,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:03:54,384 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:03:54,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:03:54,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:03:54,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:03:54,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:03:54,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:03:54,386 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:03:54,387 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-25 00:03:54,387 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-25 00:03:54,387 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:03:54,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:03:54,388 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:03:54,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:03:54,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-25 00:03:54,390 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:03:54,390 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:03:54,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:03:54,391 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:03:54,391 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:03:54,391 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:03:54,391 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-25 00:03:54,392 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-25 00:03:54,393 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:03:54,393 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:03:54,393 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:03:54,393 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:03:54,394 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_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9e4cb45c95e56f11e60a0a73722f1fb54adee905267e8a641b1bf27c5126193 [2023-11-25 00:03:54,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:03:54,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:03:54,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:03:54,822 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:03:54,823 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:03:54,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-57.i [2023-11-25 00:03:58,161 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:03:58,484 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:03:58,486 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-57.i [2023-11-25 00:03:58,499 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/data/da4c9bc74/f9d68d7d518d4def8c11c4b34e6857e0/FLAGee9bb374d [2023-11-25 00:03:58,520 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/data/da4c9bc74/f9d68d7d518d4def8c11c4b34e6857e0 [2023-11-25 00:03:58,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:03:58,527 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:03:58,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:03:58,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:03:58,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:03:58,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:03:58" (1/1) ... [2023-11-25 00:03:58,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0de030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:58, skipping insertion in model container [2023-11-25 00:03:58,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:03:58" (1/1) ... [2023-11-25 00:03:58,586 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:03:58,760 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_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-57.i[915,928] [2023-11-25 00:03:58,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:03:58,890 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:03:58,910 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_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-57.i[915,928] [2023-11-25 00:03:58,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:03:58,987 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:03:58,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:58 WrapperNode [2023-11-25 00:03:58,988 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:03:58,989 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:03:58,989 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:03:58,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:03:58,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:58" (1/1) ... [2023-11-25 00:03:59,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:58" (1/1) ... [2023-11-25 00:03:59,068 INFO L138 Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 151 [2023-11-25 00:03:59,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:03:59,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:03:59,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:03:59,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:03:59,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:58" (1/1) ... [2023-11-25 00:03:59,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:58" (1/1) ... [2023-11-25 00:03:59,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:58" (1/1) ... [2023-11-25 00:03:59,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:58" (1/1) ... [2023-11-25 00:03:59,097 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:58" (1/1) ... [2023-11-25 00:03:59,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:58" (1/1) ... [2023-11-25 00:03:59,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:58" (1/1) ... [2023-11-25 00:03:59,107 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:58" (1/1) ... [2023-11-25 00:03:59,112 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:03:59,114 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:03:59,114 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:03:59,114 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:03:59,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:58" (1/1) ... [2023-11-25 00:03:59,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:03:59,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:59,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:03:59,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:03:59,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:03:59,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-25 00:03:59,219 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:03:59,219 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:03:59,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:03:59,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:03:59,310 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:03:59,314 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:04:03,643 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:04:03,700 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:04:03,700 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:04:03,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:03 BoogieIcfgContainer [2023-11-25 00:04:03,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:04:03,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:04:03,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:04:03,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:04:03,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:03:58" (1/3) ... [2023-11-25 00:04:03,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7348dccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:04:03, skipping insertion in model container [2023-11-25 00:04:03,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:03:58" (2/3) ... [2023-11-25 00:04:03,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7348dccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:04:03, skipping insertion in model container [2023-11-25 00:04:03,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:03" (3/3) ... [2023-11-25 00:04:03,711 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-57.i [2023-11-25 00:04:03,727 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:04:03,727 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:04:03,790 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:04:03,797 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;@80324e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:04:03,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:04:03,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-25 00:04:03,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-25 00:04:03,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:04:03,819 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:04:03,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:04:03,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:04:03,826 INFO L85 PathProgramCache]: Analyzing trace with hash 2189041, now seen corresponding path program 1 times [2023-11-25 00:04:03,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:04:03,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508893273] [2023-11-25 00:04:03,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:04:03,841 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 [2023-11-25 00:04:03,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:04:03,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/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) [2023-11-25 00:04:03,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48b7e8c-bd5d-4d13-8f3c-11a3ddb4aa9b/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 [2023-11-25 00:04:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:04:04,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-25 00:04:04,826 INFO L285 TraceCheckSpWp]: Computing forward predicates...