./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-25.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_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/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_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/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_e72815a2-39ae-4b45-aa26-a07f1cfa496a/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 cbb57c0f29593d448f6879a3daeafb96125f4bb18be9c5e7e39686d9980eafd0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:07:09,650 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:07:09,745 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-25 00:07:09,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:07:09,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:07:09,782 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:07:09,782 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:07:09,783 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:07:09,784 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:07:09,784 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:07:09,785 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:07:09,786 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:07:09,786 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:07:09,787 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:07:09,787 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:07:09,788 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:07:09,788 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:07:09,789 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:07:09,790 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:07:09,790 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:07:09,791 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:07:09,796 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:07:09,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:07:09,798 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:07:09,798 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:07:09,799 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:07:09,799 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:07:09,800 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:07:09,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:07:09,803 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:07:09,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:07:09,804 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:07:09,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:07:09,805 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:07:09,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:07:09,806 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:07:09,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:07:09,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:07:09,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:07:09,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:07:09,808 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:07:09,810 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:07:09,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:07:09,810 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:07:09,811 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:07:09,811 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:07:09,811 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:07:09,811 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_e72815a2-39ae-4b45-aa26-a07f1cfa496a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbb57c0f29593d448f6879a3daeafb96125f4bb18be9c5e7e39686d9980eafd0 [2023-11-25 00:07:10,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:07:10,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:07:10,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:07:10,221 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:07:10,221 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:07:10,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-25.i [2023-11-25 00:07:13,395 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:07:13,723 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:07:13,724 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-25.i [2023-11-25 00:07:13,740 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/data/cc535d32c/141b5afc18874a97aa93cba16a0c303e/FLAG31abea2ab [2023-11-25 00:07:13,757 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/data/cc535d32c/141b5afc18874a97aa93cba16a0c303e [2023-11-25 00:07:13,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:07:13,767 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:07:13,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:07:13,771 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:07:13,777 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:07:13,779 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:07:13" (1/1) ... [2023-11-25 00:07:13,780 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e21aa5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:13, skipping insertion in model container [2023-11-25 00:07:13,781 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:07:13" (1/1) ... [2023-11-25 00:07:13,831 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:07:14,024 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_e72815a2-39ae-4b45-aa26-a07f1cfa496a/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-25.i[917,930] [2023-11-25 00:07:14,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:07:14,161 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:07:14,179 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_e72815a2-39ae-4b45-aa26-a07f1cfa496a/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-25.i[917,930] [2023-11-25 00:07:14,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:07:14,243 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:07:14,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:14 WrapperNode [2023-11-25 00:07:14,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:07:14,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:07:14,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:07:14,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:07:14,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:14" (1/1) ... [2023-11-25 00:07:14,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:14" (1/1) ... [2023-11-25 00:07:14,304 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 157 [2023-11-25 00:07:14,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:07:14,306 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:07:14,306 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:07:14,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:07:14,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:14" (1/1) ... [2023-11-25 00:07:14,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:14" (1/1) ... [2023-11-25 00:07:14,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:14" (1/1) ... [2023-11-25 00:07:14,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:14" (1/1) ... [2023-11-25 00:07:14,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:14" (1/1) ... [2023-11-25 00:07:14,333 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:14" (1/1) ... [2023-11-25 00:07:14,336 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:14" (1/1) ... [2023-11-25 00:07:14,338 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:14" (1/1) ... [2023-11-25 00:07:14,343 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:07:14,344 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:07:14,344 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:07:14,344 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:07:14,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:14" (1/1) ... [2023-11-25 00:07:14,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:07:14,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:14,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:07:14,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:07:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:07:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:07:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:07:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:07:14,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:07:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:07:14,539 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:07:14,542 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:07:14,952 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:07:15,226 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:07:15,226 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:07:15,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:07:15 BoogieIcfgContainer [2023-11-25 00:07:15,229 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:07:15,232 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:07:15,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:07:15,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:07:15,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:07:13" (1/3) ... [2023-11-25 00:07:15,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe5b357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:07:15, skipping insertion in model container [2023-11-25 00:07:15,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:14" (2/3) ... [2023-11-25 00:07:15,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe5b357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:07:15, skipping insertion in model container [2023-11-25 00:07:15,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:07:15" (3/3) ... [2023-11-25 00:07:15,240 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-25.i [2023-11-25 00:07:15,263 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:07:15,263 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:07:15,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:07:15,332 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;@41249208, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:07:15,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:07:15,337 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-25 00:07:15,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-25 00:07:15,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:15,353 INFO L195 NwaCegarLoop]: trace histogram [23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:07:15,354 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:07:15,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:15,360 INFO L85 PathProgramCache]: Analyzing trace with hash -708147400, now seen corresponding path program 1 times [2023-11-25 00:07:15,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:15,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498036601] [2023-11-25 00:07:15,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:15,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:15,614 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:15,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1652396473] [2023-11-25 00:07:15,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:15,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:15,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:15,620 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:15,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:07:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:07:15,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:07:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:07:15,993 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-25 00:07:15,996 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:07:15,997 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-25 00:07:16,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:07:16,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-25 00:07:16,210 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-25 00:07:16,213 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:07:16,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:07:16 BoogieIcfgContainer [2023-11-25 00:07:16,318 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:07:16,319 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:07:16,319 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:07:16,319 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:07:16,320 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:07:15" (3/4) ... [2023-11-25 00:07:16,324 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:07:16,325 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:07:16,328 INFO L158 Benchmark]: Toolchain (without parser) took 2559.97ms. Allocated memory was 140.5MB in the beginning and 174.1MB in the end (delta: 33.6MB). Free memory was 93.8MB in the beginning and 86.1MB in the end (delta: 7.6MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2023-11-25 00:07:16,328 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory was 89.0MB in the beginning and 88.8MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:07:16,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.66ms. Allocated memory is still 140.5MB. Free memory was 93.5MB in the beginning and 79.1MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-25 00:07:16,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.68ms. Allocated memory is still 140.5MB. Free memory was 79.1MB in the beginning and 76.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:07:16,338 INFO L158 Benchmark]: Boogie Preprocessor took 37.48ms. Allocated memory is still 140.5MB. Free memory was 76.2MB in the beginning and 74.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:07:16,339 INFO L158 Benchmark]: RCFGBuilder took 884.79ms. Allocated memory was 140.5MB in the beginning and 174.1MB in the end (delta: 33.6MB). Free memory was 74.3MB in the beginning and 127.0MB in the end (delta: -52.7MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2023-11-25 00:07:16,340 INFO L158 Benchmark]: TraceAbstraction took 1086.30ms. Allocated memory is still 174.1MB. Free memory was 127.0MB in the beginning and 86.1MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-25 00:07:16,341 INFO L158 Benchmark]: Witness Printer took 6.59ms. Allocated memory is still 174.1MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:07:16,350 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory was 89.0MB in the beginning and 88.8MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 473.66ms. Allocated memory is still 140.5MB. Free memory was 93.5MB in the beginning and 79.1MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.68ms. Allocated memory is still 140.5MB. Free memory was 79.1MB in the beginning and 76.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.48ms. Allocated memory is still 140.5MB. Free memory was 76.2MB in the beginning and 74.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 884.79ms. Allocated memory was 140.5MB in the beginning and 174.1MB in the end (delta: 33.6MB). Free memory was 74.3MB in the beginning and 127.0MB in the end (delta: -52.7MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1086.30ms. Allocated memory is still 174.1MB. Free memory was 127.0MB in the beginning and 86.1MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 6.59ms. Allocated memory is still 174.1MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 66, overapproximation of someBinaryFLOATComparisonOperation at line 74, overapproximation of someBinaryArithmeticFLOAToperation at line 79. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -256; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_3 = 5; [L25] unsigned char var_1_4 = 5; [L26] signed short int var_1_5 = -256; [L27] unsigned char var_1_6 = 1; [L28] double var_1_7 = 256.25; [L29] double var_1_8 = 127.8; [L30] double var_1_9 = 100.5; [L31] unsigned char var_1_10 = 0; [L32] unsigned char var_1_11 = 0; [L33] float var_1_12 = 999.75; [L34] float var_1_13 = 64.5; [L35] float var_1_14 = 127.25; [L36] signed char var_1_15 = -32; [L37] float var_1_16 = 32.7; [L38] unsigned char var_1_17 = 16; [L39] unsigned char var_1_18 = 32; [L40] unsigned short int var_1_19 = 5; [L41] unsigned char var_1_20 = 0; [L42] signed long int var_1_21 = 100; [L43] signed short int var_1_22 = 50; [L44] double var_1_23 = 1000000.75; [L148] isInitial = 1 [L149] FCALL initially() [L150] COND TRUE 1 [L151] FCALL updateLastVariables() [L152] CALL updateVariables() [L103] var_1_2 = __VERIFIER_nondet_uchar() [L104] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_3=5, var_1_4=5, var_1_5=-256, var_1_6=1, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_3=5, var_1_4=5, var_1_5=-256, var_1_6=1, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L105] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_3=5, var_1_4=5, var_1_5=-256, var_1_6=1, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_3=5, var_1_4=5, var_1_5=-256, var_1_6=1, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L106] var_1_3 = __VERIFIER_nondet_uchar() [L107] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_4=5, var_1_5=-256, var_1_6=1, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_4=5, var_1_5=-256, var_1_6=1, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L108] CALL assume_abort_if_not(var_1_3 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_4=5, var_1_5=-256, var_1_6=1, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_3 <= 255) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_4=5, var_1_5=-256, var_1_6=1, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L109] var_1_4 = __VERIFIER_nondet_uchar() [L110] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=1, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=1, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L111] CALL assume_abort_if_not(var_1_4 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=1, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_4 <= 255) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=1, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L112] var_1_6 = __VERIFIER_nondet_uchar() [L113] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L114] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0, var_1_7=1025/4, var_1_8=639/5, var_1_9=201/2] [L115] var_1_7 = __VERIFIER_nondet_double() [L116] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0, var_1_8=639/5, var_1_9=201/2] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0, var_1_8=639/5, var_1_9=201/2] [L117] var_1_8 = __VERIFIER_nondet_double() [L118] CALL assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0, var_1_9=201/2] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0, var_1_9=201/2] [L119] var_1_9 = __VERIFIER_nondet_double() [L120] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L121] var_1_11 = __VERIFIER_nondet_uchar() [L122] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L123] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L20] COND FALSE !(!cond) [L123] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_13=129/2, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L124] var_1_13 = __VERIFIER_nondet_float() [L125] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L20] COND FALSE !(!cond) [L125] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_14=509/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L126] var_1_14 = __VERIFIER_nondet_float() [L127] CALL assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L20] COND FALSE !(!cond) [L127] RET assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=-32, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L128] var_1_15 = __VERIFIER_nondet_char() [L129] CALL assume_abort_if_not(var_1_15 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not(var_1_15 >= -128) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L130] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L20] COND FALSE !(!cond) [L130] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L131] CALL assume_abort_if_not(var_1_15 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L20] COND FALSE !(!cond) [L131] RET assume_abort_if_not(var_1_15 != 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_16=327/10, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L132] var_1_16 = __VERIFIER_nondet_float() [L133] CALL assume_abort_if_not((var_1_16 >= -461168.6018427382800e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L20] COND FALSE !(!cond) [L133] RET assume_abort_if_not((var_1_16 >= -461168.6018427382800e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_17=16, var_1_18=32, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L134] var_1_18 = __VERIFIER_nondet_uchar() [L135] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_17=16, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L20] COND FALSE !(!cond) [L135] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_17=16, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L136] CALL assume_abort_if_not(var_1_18 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_17=16, var_1_18=0, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L20] COND FALSE !(!cond) [L136] RET assume_abort_if_not(var_1_18 <= 254) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_17=16, var_1_18=0, var_1_19=5, var_1_1=-256, var_1_20=0, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L137] var_1_20 = __VERIFIER_nondet_uchar() [L138] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_17=16, var_1_18=0, var_1_19=5, var_1_1=-256, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L20] COND FALSE !(!cond) [L138] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_17=16, var_1_18=0, var_1_19=5, var_1_1=-256, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L139] CALL assume_abort_if_not(var_1_20 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_17=16, var_1_18=0, var_1_19=5, var_1_1=-256, var_1_20=1, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_20 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=3999/4, var_1_15=2, var_1_17=16, var_1_18=0, var_1_19=5, var_1_1=-256, var_1_20=1, var_1_21=100, var_1_22=50, var_1_23=4000003/4, var_1_2=0, var_1_5=-256, var_1_6=0] [L152] RET updateVariables() [L153] CALL step() [L48] signed long int stepLocal_2 = 256; [L49] unsigned char stepLocal_1 = var_1_3 >= var_1_4; [L50] unsigned char stepLocal_0 = var_1_4; [L51] COND FALSE !(var_1_2 && stepLocal_1) [L56] COND TRUE stepLocal_0 >= var_1_3 [L57] var_1_1 = var_1_3 [L62] unsigned char stepLocal_3 = var_1_2; [L63] COND FALSE !(stepLocal_3 && var_1_6) [L66] COND TRUE (var_1_7 - var_1_8) > var_1_9 [L67] var_1_5 = var_1_3 [L72] var_1_10 = (var_1_6 && var_1_11) [L73] COND FALSE !(! (var_1_9 <= var_1_7)) [L76] COND TRUE (((((var_1_1) > (var_1_5)) ? (var_1_1) : (var_1_5))) / var_1_15) < var_1_4 [L77] var_1_12 = var_1_13 [L82] COND FALSE !(var_1_8 != ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)))) [L87] unsigned char stepLocal_5 = var_1_18; [L88] unsigned char stepLocal_4 = var_1_20 || var_1_10; [L89] COND FALSE !(var_1_4 < stepLocal_5) [L92] COND TRUE stepLocal_4 || var_1_6 [L93] var_1_19 = var_1_3 [L98] var_1_21 = var_1_4 [L99] var_1_22 = var_1_17 [L100] var_1_23 = var_1_14 [L153] RET step() [L154] CALL, EXPR property() [L144-L145] return (((((((((var_1_2 && (var_1_3 >= var_1_4)) ? ((256 != var_1_3) ? (var_1_1 == ((signed long int) (var_1_4 + var_1_3))) : 1) : ((var_1_4 >= var_1_3) ? (var_1_1 == ((signed long int) var_1_3)) : (var_1_1 == ((signed long int) var_1_4)))) && ((var_1_2 && var_1_6) ? (var_1_5 == ((signed short int) ((((var_1_4) < (-100)) ? (var_1_4) : (-100))))) : (((var_1_7 - var_1_8) > var_1_9) ? (var_1_5 == ((signed short int) var_1_3)) : (var_1_5 == ((signed short int) var_1_4))))) && (var_1_10 == ((unsigned char) (var_1_6 && var_1_11)))) && ((! (var_1_9 <= var_1_7)) ? (var_1_12 == ((float) ((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14))))) : (((((((var_1_1) > (var_1_5)) ? (var_1_1) : (var_1_5))) / var_1_15) < var_1_4) ? (var_1_12 == ((float) var_1_13)) : (var_1_12 == ((float) (var_1_16 + 49.6f)))))) && ((var_1_8 != ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)))) ? (var_1_2 ? (var_1_17 == ((unsigned char) var_1_18)) : 1) : 1)) && ((var_1_4 < var_1_18) ? (var_1_19 == ((unsigned short int) var_1_3)) : (((var_1_20 || var_1_10) || var_1_6) ? (var_1_19 == ((unsigned short int) var_1_3)) : (var_1_19 == ((unsigned short int) var_1_4))))) && (var_1_21 == ((signed long int) var_1_4))) && (var_1_22 == ((signed short int) var_1_17))) && (var_1_23 == ((double) var_1_14)) ; [L154] RET, EXPR property() [L154] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=2, var_1_14=3, var_1_15=2, var_1_17=16, var_1_18=0, var_1_19=255, var_1_1=255, var_1_20=1, var_1_21=255, var_1_22=16, var_1_23=3, var_1_2=0, var_1_3=255, var_1_4=255, var_1_5=255, var_1_6=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=2, var_1_14=3, var_1_15=2, var_1_17=16, var_1_18=0, var_1_19=255, var_1_1=255, var_1_20=1, var_1_21=255, var_1_22=16, var_1_23=3, var_1_2=0, var_1_3=255, var_1_4=255, var_1_5=255, var_1_6=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 23, 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=46occurred 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, 87 NumberOfCodeBlocks, 87 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 00:07:16,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/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_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/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_e72815a2-39ae-4b45-aa26-a07f1cfa496a/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 cbb57c0f29593d448f6879a3daeafb96125f4bb18be9c5e7e39686d9980eafd0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:07:19,027 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:07:19,108 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-25 00:07:19,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:07:19,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:07:19,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:07:19,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:07:19,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:07:19,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:07:19,164 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:07:19,164 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:07:19,165 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:07:19,165 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:07:19,166 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:07:19,167 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:07:19,167 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:07:19,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:07:19,169 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:07:19,169 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:07:19,170 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:07:19,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:07:19,171 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:07:19,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:07:19,172 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:07:19,172 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:07:19,173 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-25 00:07:19,173 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-25 00:07:19,174 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:07:19,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:07:19,175 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:07:19,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:07:19,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-25 00:07:19,176 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:07:19,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:07:19,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:07:19,178 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:07:19,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:07:19,179 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:07:19,179 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-25 00:07:19,179 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-25 00:07:19,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:07:19,180 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:07:19,181 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:07:19,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:07:19,182 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_e72815a2-39ae-4b45-aa26-a07f1cfa496a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbb57c0f29593d448f6879a3daeafb96125f4bb18be9c5e7e39686d9980eafd0 [2023-11-25 00:07:19,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:07:19,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:07:19,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:07:19,644 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:07:19,645 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:07:19,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-25.i [2023-11-25 00:07:23,006 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:07:23,289 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:07:23,290 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-25.i [2023-11-25 00:07:23,300 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/data/181372672/807ddd82aea244ecb724cfc35f6b7c82/FLAG54edbe0ed [2023-11-25 00:07:23,326 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/data/181372672/807ddd82aea244ecb724cfc35f6b7c82 [2023-11-25 00:07:23,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:07:23,337 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:07:23,338 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:07:23,338 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:07:23,343 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:07:23,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:07:23" (1/1) ... [2023-11-25 00:07:23,344 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b36bb69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:23, skipping insertion in model container [2023-11-25 00:07:23,345 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:07:23" (1/1) ... [2023-11-25 00:07:23,398 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:07:23,580 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_e72815a2-39ae-4b45-aa26-a07f1cfa496a/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-25.i[917,930] [2023-11-25 00:07:23,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:07:23,659 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:07:23,671 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_e72815a2-39ae-4b45-aa26-a07f1cfa496a/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-25.i[917,930] [2023-11-25 00:07:23,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:07:23,727 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:07:23,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:23 WrapperNode [2023-11-25 00:07:23,728 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:07:23,729 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:07:23,729 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:07:23,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:07:23,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:23" (1/1) ... [2023-11-25 00:07:23,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:23" (1/1) ... [2023-11-25 00:07:23,789 INFO L138 Inliner]: procedures = 27, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 156 [2023-11-25 00:07:23,789 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:07:23,790 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:07:23,790 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:07:23,791 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:07:23,801 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:23" (1/1) ... [2023-11-25 00:07:23,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:23" (1/1) ... [2023-11-25 00:07:23,808 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:23" (1/1) ... [2023-11-25 00:07:23,808 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:23" (1/1) ... [2023-11-25 00:07:23,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:23" (1/1) ... [2023-11-25 00:07:23,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:23" (1/1) ... [2023-11-25 00:07:23,835 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:23" (1/1) ... [2023-11-25 00:07:23,837 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:23" (1/1) ... [2023-11-25 00:07:23,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:07:23,843 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:07:23,844 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:07:23,844 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:07:23,845 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:23" (1/1) ... [2023-11-25 00:07:23,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:07:23,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:23,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:07:23,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:07:23,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:07:23,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-25 00:07:23,950 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:07:23,950 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:07:23,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:07:23,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:07:24,086 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:07:24,090 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:07:26,069 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:07:26,136 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:07:26,136 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:07:26,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:07:26 BoogieIcfgContainer [2023-11-25 00:07:26,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:07:26,140 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:07:26,140 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:07:26,144 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:07:26,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:07:23" (1/3) ... [2023-11-25 00:07:26,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2860b341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:07:26, skipping insertion in model container [2023-11-25 00:07:26,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:23" (2/3) ... [2023-11-25 00:07:26,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2860b341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:07:26, skipping insertion in model container [2023-11-25 00:07:26,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:07:26" (3/3) ... [2023-11-25 00:07:26,147 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-25.i [2023-11-25 00:07:26,168 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:07:26,169 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:07:26,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:07:26,271 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;@63e97932, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:07:26,272 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:07:26,278 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 39 states have internal predecessors, (54), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-25 00:07:26,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-25 00:07:26,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:26,305 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:07:26,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:07:26,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:26,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1534348085, now seen corresponding path program 1 times [2023-11-25 00:07:26,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:07:26,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552987812] [2023-11-25 00:07:26,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:26,335 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 00:07:26,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:07:26,343 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/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 00:07:26,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/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 00:07:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:26,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-25 00:07:26,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:26,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 524 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2023-11-25 00:07:26,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:07:26,924 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:07:26,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552987812] [2023-11-25 00:07:26,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552987812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:26,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:07:26,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:07:26,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376439543] [2023-11-25 00:07:26,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:26,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-25 00:07:26,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:07:26,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-25 00:07:26,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:07:26,974 INFO L87 Difference]: Start difference. First operand has 64 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 39 states have internal predecessors, (54), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-25 00:07:28,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-25 00:07:28,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:28,280 INFO L93 Difference]: Finished difference Result 125 states and 221 transitions. [2023-11-25 00:07:28,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-25 00:07:28,305 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 143 [2023-11-25 00:07:28,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:28,314 INFO L225 Difference]: With dead ends: 125 [2023-11-25 00:07:28,314 INFO L226 Difference]: Without dead ends: 62 [2023-11-25 00:07:28,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:07:28,324 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:28,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-25 00:07:28,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-25 00:07:28,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-25 00:07:28,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 37 states have internal predecessors, (49), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-25 00:07:28,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 95 transitions. [2023-11-25 00:07:28,372 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 95 transitions. Word has length 143 [2023-11-25 00:07:28,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:28,373 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 95 transitions. [2023-11-25 00:07:28,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-25 00:07:28,374 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 95 transitions. [2023-11-25 00:07:28,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-25 00:07:28,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:28,378 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:07:28,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:07:28,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:07:28,579 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:07:28,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:28,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1606972873, now seen corresponding path program 1 times [2023-11-25 00:07:28,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:07:28,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1094513730] [2023-11-25 00:07:28,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:28,582 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 00:07:28,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:07:28,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/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 00:07:28,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72815a2-39ae-4b45-aa26-a07f1cfa496a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-25 00:07:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:29,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-25 00:07:29,045 INFO L285 TraceCheckSpWp]: Computing forward predicates...