./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.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_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/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_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/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_1fbf1e47-d902-458d-badb-f754c766d52c/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 52ed361cdf08860b8c7c7d564ef95393de2d3a38663ac135cf0da9ded1f39b3f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:38:59,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:38:59,247 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:38:59,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:38:59,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:38:59,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:38:59,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:38:59,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:38:59,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:38:59,301 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:38:59,302 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:38:59,302 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:38:59,303 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:38:59,303 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:38:59,306 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:38:59,306 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:38:59,307 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:38:59,308 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:38:59,308 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:38:59,309 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:38:59,309 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:38:59,314 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:38:59,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:38:59,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:38:59,316 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:38:59,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:38:59,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:38:59,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:38:59,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:38:59,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:38:59,321 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:38:59,321 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:38:59,322 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:38:59,322 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:38:59,322 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:38:59,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:38:59,323 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:38:59,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:38:59,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:38:59,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:38:59,324 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:38:59,325 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:38:59,325 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:38:59,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:38:59,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:38:59,326 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:38:59,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:38:59,327 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_1fbf1e47-d902-458d-badb-f754c766d52c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52ed361cdf08860b8c7c7d564ef95393de2d3a38663ac135cf0da9ded1f39b3f [2024-11-09 06:38:59,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:38:59,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:38:59,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:38:59,716 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:38:59,716 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:38:59,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i Unable to find full path for "g++" [2024-11-09 06:39:02,034 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:39:02,436 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:39:02,436 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2024-11-09 06:39:02,456 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/data/6b9880eaf/84914a6c91e84dff94c3fc3bf5af66b7/FLAGd8d7a0db8 [2024-11-09 06:39:02,673 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/data/6b9880eaf/84914a6c91e84dff94c3fc3bf5af66b7 [2024-11-09 06:39:02,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:39:02,677 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:39:02,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:39:02,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:39:02,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:39:02,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:39:02" (1/1) ... [2024-11-09 06:39:02,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@509e716c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:02, skipping insertion in model container [2024-11-09 06:39:02,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:39:02" (1/1) ... [2024-11-09 06:39:02,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:39:03,326 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_1fbf1e47-d902-458d-badb-f754c766d52c/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26271,26284] [2024-11-09 06:39:03,333 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_1fbf1e47-d902-458d-badb-f754c766d52c/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26396,26409] [2024-11-09 06:39:03,335 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_1fbf1e47-d902-458d-badb-f754c766d52c/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26511,26524] [2024-11-09 06:39:03,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:39:03,377 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:39:03,458 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_1fbf1e47-d902-458d-badb-f754c766d52c/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26271,26284] [2024-11-09 06:39:03,461 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_1fbf1e47-d902-458d-badb-f754c766d52c/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26396,26409] [2024-11-09 06:39:03,462 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_1fbf1e47-d902-458d-badb-f754c766d52c/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26511,26524] [2024-11-09 06:39:03,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:39:03,523 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:39:03,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:03 WrapperNode [2024-11-09 06:39:03,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:39:03,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:39:03,524 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:39:03,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:39:03,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:03" (1/1) ... [2024-11-09 06:39:03,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:03" (1/1) ... [2024-11-09 06:39:03,577 INFO L138 Inliner]: procedures = 142, calls = 63, calls flagged for inlining = 14, calls inlined = 13, statements flattened = 183 [2024-11-09 06:39:03,578 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:39:03,578 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:39:03,579 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:39:03,579 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:39:03,591 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:03" (1/1) ... [2024-11-09 06:39:03,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:03" (1/1) ... [2024-11-09 06:39:03,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:03" (1/1) ... [2024-11-09 06:39:03,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:03" (1/1) ... [2024-11-09 06:39:03,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:03" (1/1) ... [2024-11-09 06:39:03,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:03" (1/1) ... [2024-11-09 06:39:03,637 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:03" (1/1) ... [2024-11-09 06:39:03,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:03" (1/1) ... [2024-11-09 06:39:03,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:39:03,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:39:03,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:39:03,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:39:03,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:03" (1/1) ... [2024-11-09 06:39:03,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:39:03,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:39:03,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:39:03,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:39:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2024-11-09 06:39:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2024-11-09 06:39:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2024-11-09 06:39:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2024-11-09 06:39:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:39:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:39:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:39:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2024-11-09 06:39:03,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2024-11-09 06:39:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:39:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:39:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 06:39:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2024-11-09 06:39:03,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2024-11-09 06:39:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:39:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2024-11-09 06:39:03,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2024-11-09 06:39:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:39:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:39:04,027 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:39:04,031 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:39:04,514 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-09 06:39:04,514 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:39:04,673 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:39:04,674 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:39:04,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:39:04 BoogieIcfgContainer [2024-11-09 06:39:04,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:39:04,677 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:39:04,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:39:04,681 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:39:04,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:39:02" (1/3) ... [2024-11-09 06:39:04,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de335d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:39:04, skipping insertion in model container [2024-11-09 06:39:04,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:03" (2/3) ... [2024-11-09 06:39:04,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de335d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:39:04, skipping insertion in model container [2024-11-09 06:39:04,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:39:04" (3/3) ... [2024-11-09 06:39:04,684 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-2.i [2024-11-09 06:39:04,704 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:39:04,704 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 06:39:04,776 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:39:04,783 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;@1a60fbf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:39:04,783 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-09 06:39:04,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 49 states have internal predecessors, (65), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 06:39:04,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 06:39:04,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:04,796 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:04,797 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:39:04,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:04,803 INFO L85 PathProgramCache]: Analyzing trace with hash 78058804, now seen corresponding path program 1 times [2024-11-09 06:39:04,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:04,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220644842] [2024-11-09 06:39:04,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:04,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:04,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:05,173 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 06:39:05,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:05,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220644842] [2024-11-09 06:39:05,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220644842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:39:05,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:39:05,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:39:05,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30544397] [2024-11-09 06:39:05,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:39:05,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:39:05,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:39:05,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:39:05,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:39:05,216 INFO L87 Difference]: Start difference. First operand has 65 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 49 states have internal predecessors, (65), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:05,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:05,518 INFO L93 Difference]: Finished difference Result 175 states and 233 transitions. [2024-11-09 06:39:05,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:39:05,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 06:39:05,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:05,531 INFO L225 Difference]: With dead ends: 175 [2024-11-09 06:39:05,532 INFO L226 Difference]: Without dead ends: 112 [2024-11-09 06:39:05,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:39:05,540 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 60 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:05,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 170 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:39:05,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-09 06:39:05,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 92. [2024-11-09 06:39:05,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 73 states have internal predecessors, (97), 13 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:39:05,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 123 transitions. [2024-11-09 06:39:05,627 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 123 transitions. Word has length 9 [2024-11-09 06:39:05,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:05,628 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 123 transitions. [2024-11-09 06:39:05,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:05,629 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 123 transitions. [2024-11-09 06:39:05,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 06:39:05,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:05,632 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:05,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:39:05,633 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:39:05,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:05,634 INFO L85 PathProgramCache]: Analyzing trace with hash -709196171, now seen corresponding path program 1 times [2024-11-09 06:39:05,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:05,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705489662] [2024-11-09 06:39:05,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:05,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:05,843 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 06:39:05,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:05,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705489662] [2024-11-09 06:39:05,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705489662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:39:05,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:39:05,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:39:05,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662869135] [2024-11-09 06:39:05,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:39:05,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:39:05,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:39:05,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:39:05,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:39:05,850 INFO L87 Difference]: Start difference. First operand 92 states and 123 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:39:06,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:06,084 INFO L93 Difference]: Finished difference Result 157 states and 203 transitions. [2024-11-09 06:39:06,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:39:06,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-11-09 06:39:06,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:06,086 INFO L225 Difference]: With dead ends: 157 [2024-11-09 06:39:06,087 INFO L226 Difference]: Without dead ends: 73 [2024-11-09 06:39:06,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:39:06,089 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 13 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:06,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 172 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:39:06,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-09 06:39:06,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2024-11-09 06:39:06,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 48 states have (on average 1.3125) internal successors, (63), 51 states have internal predecessors, (63), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:39:06,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 85 transitions. [2024-11-09 06:39:06,104 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 85 transitions. Word has length 14 [2024-11-09 06:39:06,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:06,104 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 85 transitions. [2024-11-09 06:39:06,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:39:06,105 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 85 transitions. [2024-11-09 06:39:06,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 06:39:06,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:06,106 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 06:39:06,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:39:06,107 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:39:06,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:06,108 INFO L85 PathProgramCache]: Analyzing trace with hash -222458741, now seen corresponding path program 1 times [2024-11-09 06:39:06,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:06,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459433291] [2024-11-09 06:39:06,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:06,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:06,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:06,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:06,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459433291] [2024-11-09 06:39:06,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459433291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:39:06,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146434060] [2024-11-09 06:39:06,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:06,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:39:06,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:39:06,851 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:39:06,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:39:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:07,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-09 06:39:07,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:07,359 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 06:39:07,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-09 06:39:07,755 INFO L349 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2024-11-09 06:39:07,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 236 [2024-11-09 06:39:07,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-09 06:39:07,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-09 06:39:07,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-09 06:39:08,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:08,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:39:08,947 INFO L349 Elim1Store]: treesize reduction 111, result has 26.5 percent of original size [2024-11-09 06:39:08,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 398 treesize of output 412 [2024-11-09 06:39:09,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 06:39:09,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 06:39:09,219 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-09 06:39:09,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 06:39:09,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 06:39:09,724 INFO L349 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2024-11-09 06:39:09,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 163 treesize of output 129 [2024-11-09 06:39:10,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-11-09 06:39:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:10,055 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:39:10,458 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:39:10,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 708 treesize of output 699 [2024-11-09 06:39:10,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 638 treesize of output 606 [2024-11-09 06:39:10,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 570 treesize of output 554 [2024-11-09 06:39:10,992 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:39:10,994 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:39:11,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:11,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2024-11-09 06:39:11,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:11,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:11,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:11,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146434060] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:39:11,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [747666634] [2024-11-09 06:39:11,255 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-09 06:39:11,255 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:39:11,260 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:39:11,268 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:39:11,269 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:39:13,213 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 96 for LOIs [2024-11-09 06:39:13,291 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_list_add with input of size 31 for LOIs [2024-11-09 06:39:13,427 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 39 for LOIs [2024-11-09 06:39:13,436 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:39:24,970 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '935#(and (= |~#drvlist~0.offset| 0) (<= 1 |#StackHeapBarrier|) (or (not (= (select (select |#memory_$Pointer$.base| 3) 0) 3)) (not (= (select (select |#memory_$Pointer$.offset| 3) 0) 0))) (= |~#mutexes~0.base| 3) (= |~#mutexes~0.offset| 0) (= (select (select |#memory_$Pointer$.offset| 4) 0) 0) (= (select (select |#memory_$Pointer$.base| 4) 0) 4) (= 4 |~#drvlist~0.base|))' at error location [2024-11-09 06:39:24,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:39:24,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:39:24,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 32 [2024-11-09 06:39:24,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813572529] [2024-11-09 06:39:24,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:39:24,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 06:39:24,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:39:24,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 06:39:24,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=2323, Unknown=2, NotChecked=0, Total=2550 [2024-11-09 06:39:24,976 INFO L87 Difference]: Start difference. First operand 68 states and 85 transitions. Second operand has 32 states, 20 states have (on average 2.05) internal successors, (41), 25 states have internal predecessors, (41), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:39:28,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:28,936 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2024-11-09 06:39:28,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 06:39:28,937 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 20 states have (on average 2.05) internal successors, (41), 25 states have internal predecessors, (41), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 23 [2024-11-09 06:39:28,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:28,938 INFO L225 Difference]: With dead ends: 160 [2024-11-09 06:39:28,939 INFO L226 Difference]: Without dead ends: 131 [2024-11-09 06:39:28,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 889 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=503, Invalid=4187, Unknown=2, NotChecked=0, Total=4692 [2024-11-09 06:39:28,942 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 500 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:28,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 689 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 06:39:28,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-09 06:39:28,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 108. [2024-11-09 06:39:28,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 79 states have (on average 1.3670886075949367) internal successors, (108), 84 states have internal predecessors, (108), 16 states have call successors, (16), 10 states have call predecessors, (16), 10 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 06:39:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 140 transitions. [2024-11-09 06:39:28,965 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 140 transitions. Word has length 23 [2024-11-09 06:39:28,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:28,965 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 140 transitions. [2024-11-09 06:39:28,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 20 states have (on average 2.05) internal successors, (41), 25 states have internal predecessors, (41), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:39:28,966 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 140 transitions. [2024-11-09 06:39:28,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 06:39:28,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:28,967 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, 1, 1, 1, 1, 1] [2024-11-09 06:39:28,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:39:29,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:39:29,168 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:39:29,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:29,169 INFO L85 PathProgramCache]: Analyzing trace with hash -359920258, now seen corresponding path program 1 times [2024-11-09 06:39:29,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:29,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362355387] [2024-11-09 06:39:29,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:29,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:29,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:39:29,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:29,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362355387] [2024-11-09 06:39:29,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362355387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:39:29,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:39:29,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:39:29,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089550356] [2024-11-09 06:39:29,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:39:29,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:39:29,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:39:29,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:39:29,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:39:29,293 INFO L87 Difference]: Start difference. First operand 108 states and 140 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:39:29,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:29,411 INFO L93 Difference]: Finished difference Result 120 states and 156 transitions. [2024-11-09 06:39:29,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:39:29,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2024-11-09 06:39:29,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:29,416 INFO L225 Difference]: With dead ends: 120 [2024-11-09 06:39:29,416 INFO L226 Difference]: Without dead ends: 118 [2024-11-09 06:39:29,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:39:29,420 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:29,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 206 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:39:29,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-09 06:39:29,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2024-11-09 06:39:29,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 85 states have (on average 1.3411764705882352) internal successors, (114), 90 states have internal predecessors, (114), 16 states have call successors, (16), 10 states have call predecessors, (16), 12 states have return successors, (21), 15 states have call predecessors, (21), 16 states have call successors, (21) [2024-11-09 06:39:29,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 151 transitions. [2024-11-09 06:39:29,449 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 151 transitions. Word has length 28 [2024-11-09 06:39:29,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:29,449 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 151 transitions. [2024-11-09 06:39:29,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:39:29,450 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 151 transitions. [2024-11-09 06:39:29,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 06:39:29,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:29,451 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, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:29,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:39:29,451 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:39:29,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:29,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1050732893, now seen corresponding path program 1 times [2024-11-09 06:39:29,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:29,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748929972] [2024-11-09 06:39:29,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:29,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:31,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:31,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:31,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748929972] [2024-11-09 06:39:31,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748929972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:39:31,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038746299] [2024-11-09 06:39:31,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:31,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:39:31,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:39:31,918 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:39:31,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbf1e47-d902-458d-badb-f754c766d52c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:39:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:32,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 93 conjuncts are in the unsatisfiable core [2024-11-09 06:39:32,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:32,622 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 06:39:32,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-09 06:39:33,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 22 [2024-11-09 06:39:34,085 INFO L349 Elim1Store]: treesize reduction 36, result has 49.3 percent of original size [2024-11-09 06:39:34,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 165 [2024-11-09 06:39:34,461 INFO L349 Elim1Store]: treesize reduction 72, result has 48.9 percent of original size [2024-11-09 06:39:34,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 111 treesize of output 174 [2024-11-09 06:39:34,714 INFO L349 Elim1Store]: treesize reduction 164, result has 18.8 percent of original size [2024-11-09 06:39:34,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 162 treesize of output 195 [2024-11-09 06:39:34,949 INFO L349 Elim1Store]: treesize reduction 166, result has 18.2 percent of original size [2024-11-09 06:39:34,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 114 treesize of output 156 [2024-11-09 06:39:35,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-09 06:39:35,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 06:39:35,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-09 06:39:35,504 INFO L349 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2024-11-09 06:39:35,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2024-11-09 06:39:35,585 INFO L349 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2024-11-09 06:39:35,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2024-11-09 06:39:35,677 INFO L349 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2024-11-09 06:39:35,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2024-11-09 06:39:38,571 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2024-11-09 06:39:38,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 23 [2024-11-09 06:39:38,861 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2024-11-09 06:39:38,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2024-11-09 06:39:39,535 INFO L349 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2024-11-09 06:39:39,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 182 treesize of output 195 [2024-11-09 06:39:39,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 59 [2024-11-09 06:39:39,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 55 [2024-11-09 06:39:39,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:39,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2024-11-09 06:39:40,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:40,285 INFO L349 Elim1Store]: treesize reduction 151, result has 16.1 percent of original size [2024-11-09 06:39:40,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 364 treesize of output 427 [2024-11-09 06:39:40,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 184 [2024-11-09 06:39:40,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 180 [2024-11-09 06:39:40,878 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:39:40,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:40,890 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:39:40,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-09 06:39:41,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2024-11-09 06:39:43,629 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-09 06:39:43,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:43,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:39:45,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:45,478 INFO L349 Elim1Store]: treesize reduction 161, result has 29.4 percent of original size [2024-11-09 06:39:45,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 716 treesize of output 922 [2024-11-09 06:39:45,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 537 treesize of output 540 [2024-11-09 06:39:45,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 534 treesize of output 537 [2024-11-09 06:39:51,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:51,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 9 [2024-11-09 06:39:51,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:51,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2024-11-09 06:39:52,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:52,336 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2024-11-09 06:39:52,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 30 [2024-11-09 06:39:52,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:52,998 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2024-11-09 06:39:52,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 30 [2024-11-09 06:39:53,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:53,199 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2024-11-09 06:39:53,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 30 [2024-11-09 06:39:53,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:53,336 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2024-11-09 06:39:53,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 30 [2024-11-09 06:39:57,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:57,476 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2024-11-09 06:39:57,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 30 [2024-11-09 06:39:57,609 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2024-11-09 06:39:57,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 30 [2024-11-09 06:39:57,853 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2024-11-09 06:39:57,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 30 [2024-11-09 06:39:57,993 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2024-11-09 06:39:57,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 30 [2024-11-09 06:39:58,133 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2024-11-09 06:39:58,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 30 [2024-11-09 06:39:58,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2024-11-09 06:39:58,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2024-11-09 06:39:58,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:58,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2024-11-09 06:39:58,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2024-11-09 06:39:58,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2024-11-09 06:39:58,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2024-11-09 06:39:58,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2024-11-09 06:39:59,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:59,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2024-11-09 06:39:59,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:59,177 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2024-11-09 06:39:59,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 30 [2024-11-09 06:39:59,300 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2024-11-09 06:39:59,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 30 [2024-11-09 06:39:59,526 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2024-11-09 06:39:59,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 30 [2024-11-09 06:39:59,660 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2024-11-09 06:39:59,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 30 [2024-11-09 06:39:59,783 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2024-11-09 06:39:59,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 30 [2024-11-09 06:39:59,956 INFO L349 Elim1Store]: treesize reduction 36, result has 18.2 percent of original size [2024-11-09 06:39:59,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 22 [2024-11-09 06:40:00,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 9 [2024-11-09 06:40:00,865 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:00,866 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:00,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:40:00,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18 [2024-11-09 06:40:01,547 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:01,548 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:01,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:40:01,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18 [2024-11-09 06:40:02,820 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:02,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 37 [2024-11-09 06:40:03,707 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:03,709 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:03,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:40:03,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18 [2024-11-09 06:40:03,978 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:03,979 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:03,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:40:03,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18 [2024-11-09 06:40:05,193 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:05,194 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:05,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:40:05,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18 [2024-11-09 06:40:06,124 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:06,125 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:06,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:40:06,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18 [2024-11-09 06:40:06,550 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-11-09 06:40:06,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-09 06:40:06,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:40:06,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2024-11-09 06:40:06,729 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-11-09 06:40:06,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-09 06:40:07,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:40:07,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2024-11-09 06:40:07,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:07,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 23 [2024-11-09 06:40:07,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:40:07,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2024-11-09 06:40:07,994 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:07,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 23 [2024-11-09 06:40:08,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:40:08,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2024-11-09 06:40:08,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:40:08,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2024-11-09 06:40:08,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:40:08,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2024-11-09 06:40:08,778 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:08,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 317 treesize of output 315 [2024-11-09 06:40:09,664 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2024-11-09 06:40:09,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 192 treesize of output 180 [2024-11-09 06:40:09,952 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2024-11-09 06:40:09,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 236 treesize of output 224 [2024-11-09 06:40:10,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:40:13,012 INFO L349 Elim1Store]: treesize reduction 908, result has 13.4 percent of original size [2024-11-09 06:40:13,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 42 case distinctions, treesize of input 802 treesize of output 999 [2024-11-09 06:47:10,924 WARN L286 SmtUtils]: Spent 8.87s on a formula simplification. DAG size of input: 5771 DAG size of output: 5774 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:47:11,746 INFO L349 Elim1Store]: treesize reduction 190, result has 39.9 percent of original size [2024-11-09 06:47:11,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 457 treesize of output 555 [2024-11-09 06:48:24,350 WARN L286 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 1060 DAG size of output: 1186 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:48:34,474 WARN L286 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 942 DAG size of output: 1235 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:49:00,620 WARN L286 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 941 DAG size of output: 967 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)