./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje --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 b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:29:27,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:29:28,028 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:29:28,038 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:29:28,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:29:28,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:29:28,085 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:29:28,086 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:29:28,087 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:29:28,088 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:29:28,089 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:29:28,089 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:29:28,090 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:29:28,091 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:29:28,093 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:29:28,093 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:29:28,093 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:29:28,094 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:29:28,094 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:29:28,094 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:29:28,095 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:29:28,096 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:29:28,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:29:28,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:29:28,097 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:29:28,098 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:29:28,102 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:29:28,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:29:28,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:29:28,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:29:28,103 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:29:28,103 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:29:28,103 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:29:28,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:29:28,104 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:29:28,104 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:29:28,104 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:29:28,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:29:28,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:28,105 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:29:28,107 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:29:28,108 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:29:28,108 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:29:28,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:29:28,109 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:29:28,109 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:29:28,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:29:28,110 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_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 [2024-11-09 04:29:28,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:29:28,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:29:28,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:29:28,461 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:29:28,462 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:29:28,463 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i Unable to find full path for "g++" [2024-11-09 04:29:30,574 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:29:31,072 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:29:31,073 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2024-11-09 04:29:31,114 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/data/59cf3bd24/2de2269100fc4a3eacac8470070def83/FLAGc8ee6d9bf [2024-11-09 04:29:31,177 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/data/59cf3bd24/2de2269100fc4a3eacac8470070def83 [2024-11-09 04:29:31,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:29:31,183 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:29:31,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:31,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:29:31,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:29:31,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:31" (1/1) ... [2024-11-09 04:29:31,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a01f175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:31, skipping insertion in model container [2024-11-09 04:29:31,195 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:31" (1/1) ... [2024-11-09 04:29:31,314 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:29:31,661 WARN L250 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_2c5443e1-c806-4e85-b867-e792691cc168/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i[453,466] [2024-11-09 04:29:33,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:33,493 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:29:33,506 WARN L250 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_2c5443e1-c806-4e85-b867-e792691cc168/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i[453,466] [2024-11-09 04:29:33,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:33,930 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:29:33,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:33 WrapperNode [2024-11-09 04:29:33,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:33,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:29:33,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:29:33,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:29:33,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:33" (1/1) ... [2024-11-09 04:29:34,048 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:33" (1/1) ... [2024-11-09 04:29:34,225 INFO L138 Inliner]: procedures = 472, calls = 2680, calls flagged for inlining = 54, calls inlined = 38, statements flattened = 3392 [2024-11-09 04:29:34,225 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:29:34,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:29:34,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:29:34,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:29:34,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:33" (1/1) ... [2024-11-09 04:29:34,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:33" (1/1) ... [2024-11-09 04:29:34,271 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:33" (1/1) ... [2024-11-09 04:29:34,271 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:33" (1/1) ... [2024-11-09 04:29:34,392 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:33" (1/1) ... [2024-11-09 04:29:34,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:33" (1/1) ... [2024-11-09 04:29:34,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:33" (1/1) ... [2024-11-09 04:29:34,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:33" (1/1) ... [2024-11-09 04:29:34,477 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:29:34,480 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:29:34,480 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:29:34,480 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:29:34,481 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:33" (1/1) ... [2024-11-09 04:29:34,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:34,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:29:34,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:29:34,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:29:34,647 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2024-11-09 04:29:34,647 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2024-11-09 04:29:34,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 04:29:34,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2024-11-09 04:29:34,649 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-09 04:29:34,649 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-09 04:29:34,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:29:34,649 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-09 04:29:34,650 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-09 04:29:34,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 04:29:34,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2024-11-09 04:29:34,650 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2024-11-09 04:29:34,650 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2024-11-09 04:29:34,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:29:34,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:29:34,651 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2024-11-09 04:29:34,651 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2024-11-09 04:29:34,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:29:34,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 04:29:34,652 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 04:29:34,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 04:29:34,652 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2024-11-09 04:29:34,653 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2024-11-09 04:29:34,653 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2024-11-09 04:29:34,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2024-11-09 04:29:34,653 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2024-11-09 04:29:34,654 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2024-11-09 04:29:34,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:29:34,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:29:34,654 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2024-11-09 04:29:34,654 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2024-11-09 04:29:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:29:34,655 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:29:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2024-11-09 04:29:34,655 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2024-11-09 04:29:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:29:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 04:29:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-09 04:29:34,656 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-09 04:29:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2024-11-09 04:29:34,656 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2024-11-09 04:29:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-09 04:29:34,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-09 04:29:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 04:29:34,657 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 04:29:34,657 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 04:29:34,657 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-09 04:29:34,657 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-09 04:29:34,657 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-09 04:29:34,657 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-09 04:29:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2024-11-09 04:29:34,658 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2024-11-09 04:29:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2024-11-09 04:29:34,658 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2024-11-09 04:29:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2024-11-09 04:29:34,658 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2024-11-09 04:29:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:29:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2024-11-09 04:29:34,659 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2024-11-09 04:29:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2024-11-09 04:29:34,659 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2024-11-09 04:29:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-09 04:29:34,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-09 04:29:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-09 04:29:34,659 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-09 04:29:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-09 04:29:34,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-09 04:29:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:29:35,155 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:29:35,158 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:29:41,862 INFO L? ?]: Removed 446 outVars from TransFormulas that were not future-live. [2024-11-09 04:29:41,863 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:29:42,665 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:29:42,667 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:29:42,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:29:42 BoogieIcfgContainer [2024-11-09 04:29:42,668 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:29:42,670 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:29:42,670 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:29:42,674 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:29:42,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:29:31" (1/3) ... [2024-11-09 04:29:42,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd8f62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:29:42, skipping insertion in model container [2024-11-09 04:29:42,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:33" (2/3) ... [2024-11-09 04:29:42,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd8f62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:29:42, skipping insertion in model container [2024-11-09 04:29:42,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:29:42" (3/3) ... [2024-11-09 04:29:42,678 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_outb.i [2024-11-09 04:29:42,697 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:29:42,698 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:29:42,794 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:29:42,802 INFO L333 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, 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;@7515170f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:29:42,802 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:29:42,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 273 states, 167 states have (on average 1.3592814371257484) internal successors, (227), 174 states have internal predecessors, (227), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-09 04:29:42,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 04:29:42,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:42,818 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:29:42,818 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outbErr0ASSERT_VIOLATIONERROR_FUNCTION === [outbErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:29:42,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:42,824 INFO L85 PathProgramCache]: Analyzing trace with hash -833165166, now seen corresponding path program 1 times [2024-11-09 04:29:42,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:29:42,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671794561] [2024-11-09 04:29:42,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:42,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:29:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:48,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:29:48,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:29:48,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671794561] [2024-11-09 04:29:48,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671794561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:29:48,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:29:48,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:29:48,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753159545] [2024-11-09 04:29:48,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:29:48,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:29:48,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:29:48,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:29:48,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:29:48,775 INFO L87 Difference]: Start difference. First operand has 273 states, 167 states have (on average 1.3592814371257484) internal successors, (227), 174 states have internal predecessors, (227), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:29:49,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:49,497 INFO L93 Difference]: Finished difference Result 545 states and 796 transitions. [2024-11-09 04:29:49,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:29:49,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2024-11-09 04:29:49,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:49,515 INFO L225 Difference]: With dead ends: 545 [2024-11-09 04:29:49,515 INFO L226 Difference]: Without dead ends: 271 [2024-11-09 04:29:49,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:29:49,531 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 2 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:49,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 639 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:29:49,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-09 04:29:49,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-09 04:29:49,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 168 states have (on average 1.3392857142857142) internal successors, (225), 175 states have internal predecessors, (225), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-09 04:29:49,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 376 transitions. [2024-11-09 04:29:49,633 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 376 transitions. Word has length 19 [2024-11-09 04:29:49,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:49,635 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 376 transitions. [2024-11-09 04:29:49,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:29:49,636 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 376 transitions. [2024-11-09 04:29:49,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 04:29:49,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:49,637 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:29:49,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:29:49,638 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outbErr0ASSERT_VIOLATIONERROR_FUNCTION === [outbErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:29:49,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:49,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1459605700, now seen corresponding path program 1 times [2024-11-09 04:29:49,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:29:49,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017369777] [2024-11-09 04:29:49,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:49,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:29:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:53,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 04:29:53,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:29:53,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017369777] [2024-11-09 04:29:53,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017369777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:29:53,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805739494] [2024-11-09 04:29:53,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:53,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:29:53,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:29:53,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:29:53,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5443e1-c806-4e85-b867-e792691cc168/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:29:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:58,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 5514 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 04:29:58,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:29:58,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 04:29:58,270 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:29:58,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 04:29:58,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805739494] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:29:58,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [356366083] [2024-11-09 04:29:58,370 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 04:29:58,370 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:29:58,375 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:29:58,382 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:29:58,383 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:32:09,439 WARN L286 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 4265 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 04:33:47,993 WARN L286 SmtUtils]: Spent 7.31s on a formula simplification that was a NOOP. DAG size: 4265 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 04:35:06,021 WARN L286 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 4265 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 04:36:42,342 WARN L286 SmtUtils]: Spent 6.25s on a formula simplification that was a NOOP. DAG size: 4265 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 04:37:24,805 WARN L286 SmtUtils]: Spent 14.23s on a formula simplification that was a NOOP. DAG size: 11412 (called from [L 210] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2024-11-09 04:37:40,475 WARN L286 SmtUtils]: Spent 15.65s on a formula simplification that was a NOOP. DAG size: 11412 (called from [L 210] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2024-11-09 04:38:02,109 WARN L286 SmtUtils]: Spent 21.59s on a formula simplification. DAG size of input: 11413 DAG size of output: 11413 (called from [L 210] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2024-11-09 04:38:16,609 WARN L286 SmtUtils]: Spent 14.49s on a formula simplification that was a NOOP. DAG size: 11412 (called from [L 210] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2024-11-09 04:38:31,586 WARN L286 SmtUtils]: Spent 14.96s on a formula simplification that was a NOOP. DAG size: 11412 (called from [L 210] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2024-11-09 04:38:53,828 WARN L286 SmtUtils]: Spent 22.22s on a formula simplification. DAG size of input: 11413 DAG size of output: 11413 (called from [L 210] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)