./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 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_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:14:45,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:14:46,103 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:14:46,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:14:46,108 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:14:46,150 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:14:46,151 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:14:46,151 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:14:46,152 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:14:46,153 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:14:46,154 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:14:46,155 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:14:46,155 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:14:46,156 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:14:46,157 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:14:46,157 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:14:46,158 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:14:46,158 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:14:46,159 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:14:46,160 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:14:46,160 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:14:46,161 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:14:46,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:14:46,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:14:46,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:14:46,163 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:14:46,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:14:46,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:14:46,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:14:46,165 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:14:46,166 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:14:46,166 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:14:46,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:14:46,167 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:14:46,167 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:14:46,167 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:14:46,168 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:14:46,168 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:14:46,168 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:14:46,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:14:46,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:14:46,170 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:14:46,170 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:14:46,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:14:46,171 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:14:46,171 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:14:46,171 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_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 [2023-11-12 00:14:46,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:14:46,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:14:46,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:14:46,497 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:14:46,497 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:14:46,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2023-11-12 00:14:49,684 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:14:50,078 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:14:50,082 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2023-11-12 00:14:50,109 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/data/613b2e0a1/086f79f4610e4c5fa5bd537516068246/FLAGcc1a14048 [2023-11-12 00:14:50,126 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/data/613b2e0a1/086f79f4610e4c5fa5bd537516068246 [2023-11-12 00:14:50,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:14:50,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:14:50,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:14:50,138 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:14:50,143 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:14:50,144 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:14:50" (1/1) ... [2023-11-12 00:14:50,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4f331b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:50, skipping insertion in model container [2023-11-12 00:14:50,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:14:50" (1/1) ... [2023-11-12 00:14:50,216 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:14:50,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:14:50,663 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:14:50,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:14:50,781 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:50,781 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:50,789 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:14:50,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:50 WrapperNode [2023-11-12 00:14:50,789 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:14:50,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:14:50,791 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:14:50,791 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:14:50,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:50" (1/1) ... [2023-11-12 00:14:50,824 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:50" (1/1) ... [2023-11-12 00:14:50,869 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 176 [2023-11-12 00:14:50,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:14:50,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:14:50,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:14:50,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:14:50,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:50" (1/1) ... [2023-11-12 00:14:50,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:50" (1/1) ... [2023-11-12 00:14:50,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:50" (1/1) ... [2023-11-12 00:14:50,886 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:50" (1/1) ... [2023-11-12 00:14:50,897 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:50" (1/1) ... [2023-11-12 00:14:50,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:50" (1/1) ... [2023-11-12 00:14:50,902 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:50" (1/1) ... [2023-11-12 00:14:50,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:50" (1/1) ... [2023-11-12 00:14:50,910 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:14:50,911 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:14:50,911 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:14:50,912 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:14:50,912 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:50" (1/1) ... [2023-11-12 00:14:50,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:14:50,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:14:50,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:14:51,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:14:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:14:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:14:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:14:51,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:14:51,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:14:51,057 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 00:14:51,058 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 00:14:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 00:14:51,059 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 00:14:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:14:51,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:14:51,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:14:51,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:14:51,062 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:14:51,239 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:14:51,241 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:14:51,679 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:14:52,018 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:14:52,020 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:14:52,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:14:52 BoogieIcfgContainer [2023-11-12 00:14:52,023 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:14:52,025 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:14:52,025 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:14:52,029 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:14:52,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:14:50" (1/3) ... [2023-11-12 00:14:52,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a63e113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:14:52, skipping insertion in model container [2023-11-12 00:14:52,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:50" (2/3) ... [2023-11-12 00:14:52,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a63e113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:14:52, skipping insertion in model container [2023-11-12 00:14:52,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:14:52" (3/3) ... [2023-11-12 00:14:52,037 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2023-11-12 00:14:52,058 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:14:52,058 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-12 00:14:52,059 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:14:52,143 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:14:52,188 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:14:52,211 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 108 transitions, 224 flow [2023-11-12 00:14:52,217 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 108 transitions, 224 flow [2023-11-12 00:14:52,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 108 transitions, 224 flow [2023-11-12 00:14:52,293 INFO L124 PetriNetUnfolderBase]: 3/106 cut-off events. [2023-11-12 00:14:52,294 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:14:52,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 106 events. 3/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-11-12 00:14:52,304 INFO L119 LiptonReduction]: Number of co-enabled transitions 1708 [2023-11-12 00:14:59,372 INFO L134 LiptonReduction]: Checked pairs total: 5372 [2023-11-12 00:14:59,373 INFO L136 LiptonReduction]: Total number of compositions: 110 [2023-11-12 00:14:59,381 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 29 transitions, 66 flow [2023-11-12 00:14:59,444 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 334 states, 325 states have (on average 2.686153846153846) internal successors, (873), 333 states have internal predecessors, (873), 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) [2023-11-12 00:14:59,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:14:59,470 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@44303338, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:14:59,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-12 00:14:59,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 334 states, 325 states have (on average 2.686153846153846) internal successors, (873), 333 states have internal predecessors, (873), 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) [2023-11-12 00:14:59,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-12 00:14:59,479 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:59,480 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-12 00:14:59,481 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 00:14:59,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:59,486 INFO L85 PathProgramCache]: Analyzing trace with hash 578, now seen corresponding path program 1 times [2023-11-12 00:14:59,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:59,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133527226] [2023-11-12 00:14:59,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:59,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:59,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:14:59,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:59,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133527226] [2023-11-12 00:14:59,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133527226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:59,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:14:59,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 00:14:59,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382887856] [2023-11-12 00:14:59,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:59,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:14:59,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:59,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:14:59,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:14:59,700 INFO L87 Difference]: Start difference. First operand has 334 states, 325 states have (on average 2.686153846153846) internal successors, (873), 333 states have internal predecessors, (873), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-11-12 00:14:59,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:14:59,799 INFO L93 Difference]: Finished difference Result 320 states and 801 transitions. [2023-11-12 00:14:59,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:14:59,802 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2023-11-12 00:14:59,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:14:59,815 INFO L225 Difference]: With dead ends: 320 [2023-11-12 00:14:59,816 INFO L226 Difference]: Without dead ends: 320 [2023-11-12 00:14:59,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:14:59,821 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:14:59,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:14:59,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-11-12 00:14:59,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2023-11-12 00:14:59,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 2.5428571428571427) internal successors, (801), 319 states have internal predecessors, (801), 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) [2023-11-12 00:14:59,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 801 transitions. [2023-11-12 00:14:59,889 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 801 transitions. Word has length 1 [2023-11-12 00:14:59,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:59,889 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 801 transitions. [2023-11-12 00:14:59,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-11-12 00:14:59,890 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 801 transitions. [2023-11-12 00:14:59,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 00:14:59,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:59,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 00:14:59,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:14:59,892 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 00:14:59,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:59,893 INFO L85 PathProgramCache]: Analyzing trace with hash -152476280, now seen corresponding path program 1 times [2023-11-12 00:14:59,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:59,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22814586] [2023-11-12 00:14:59,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:59,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:00,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:00,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:00,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22814586] [2023-11-12 00:15:00,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22814586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:00,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:00,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:15:00,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134729427] [2023-11-12 00:15:00,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:00,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:15:00,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:00,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:15:00,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:15:00,269 INFO L87 Difference]: Start difference. First operand 320 states and 801 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-12 00:15:00,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:00,373 INFO L93 Difference]: Finished difference Result 278 states and 688 transitions. [2023-11-12 00:15:00,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:15:00,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-12 00:15:00,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:00,377 INFO L225 Difference]: With dead ends: 278 [2023-11-12 00:15:00,378 INFO L226 Difference]: Without dead ends: 266 [2023-11-12 00:15:00,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:15:00,380 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:00,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:15:00,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-11-12 00:15:00,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2023-11-12 00:15:00,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 264 states have (on average 2.5) internal successors, (660), 265 states have internal predecessors, (660), 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) [2023-11-12 00:15:00,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 660 transitions. [2023-11-12 00:15:00,401 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 660 transitions. Word has length 6 [2023-11-12 00:15:00,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:00,402 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 660 transitions. [2023-11-12 00:15:00,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-12 00:15:00,402 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 660 transitions. [2023-11-12 00:15:00,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:15:00,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:00,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:00,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:15:00,404 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 00:15:00,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:00,405 INFO L85 PathProgramCache]: Analyzing trace with hash -431754284, now seen corresponding path program 1 times [2023-11-12 00:15:00,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:00,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962517118] [2023-11-12 00:15:00,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:00,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:00,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:00,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:00,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962517118] [2023-11-12 00:15:00,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962517118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:00,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:00,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:15:00,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267085090] [2023-11-12 00:15:00,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:00,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:15:00,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:00,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:15:00,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:15:00,799 INFO L87 Difference]: Start difference. First operand 266 states and 660 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-12 00:15:00,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:00,881 INFO L93 Difference]: Finished difference Result 242 states and 592 transitions. [2023-11-12 00:15:00,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:15:00,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-11-12 00:15:00,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:00,887 INFO L225 Difference]: With dead ends: 242 [2023-11-12 00:15:00,887 INFO L226 Difference]: Without dead ends: 242 [2023-11-12 00:15:00,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:15:00,889 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:00,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:15:00,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-11-12 00:15:00,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2023-11-12 00:15:00,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 240 states have (on average 2.466666666666667) internal successors, (592), 241 states have internal predecessors, (592), 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) [2023-11-12 00:15:00,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 592 transitions. [2023-11-12 00:15:00,907 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 592 transitions. Word has length 7 [2023-11-12 00:15:00,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:00,907 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 592 transitions. [2023-11-12 00:15:00,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-12 00:15:00,908 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 592 transitions. [2023-11-12 00:15:00,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:15:00,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:00,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:00,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:15:00,910 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 00:15:00,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:00,910 INFO L85 PathProgramCache]: Analyzing trace with hash -499480448, now seen corresponding path program 1 times [2023-11-12 00:15:00,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:00,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153812100] [2023-11-12 00:15:00,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:00,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:01,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:01,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:01,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153812100] [2023-11-12 00:15:01,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153812100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:01,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:01,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:15:01,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258825425] [2023-11-12 00:15:01,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:01,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:15:01,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:01,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:15:01,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:15:01,279 INFO L87 Difference]: Start difference. First operand 242 states and 592 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-12 00:15:01,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:01,483 INFO L93 Difference]: Finished difference Result 200 states and 479 transitions. [2023-11-12 00:15:01,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:15:01,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2023-11-12 00:15:01,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:01,485 INFO L225 Difference]: With dead ends: 200 [2023-11-12 00:15:01,485 INFO L226 Difference]: Without dead ends: 158 [2023-11-12 00:15:01,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:15:01,487 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 28 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:01,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 9 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:15:01,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-12 00:15:01,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2023-11-12 00:15:01,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 2.3312101910828025) internal successors, (366), 157 states have internal predecessors, (366), 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) [2023-11-12 00:15:01,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 366 transitions. [2023-11-12 00:15:01,498 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 366 transitions. Word has length 8 [2023-11-12 00:15:01,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:01,498 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 366 transitions. [2023-11-12 00:15:01,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-12 00:15:01,499 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 366 transitions. [2023-11-12 00:15:01,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 00:15:01,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:01,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:01,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:15:01,501 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 00:15:01,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:01,502 INFO L85 PathProgramCache]: Analyzing trace with hash -280794855, now seen corresponding path program 1 times [2023-11-12 00:15:01,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:01,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134619299] [2023-11-12 00:15:01,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:01,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:02,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:02,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:02,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134619299] [2023-11-12 00:15:02,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134619299] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:02,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:02,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:15:02,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887556571] [2023-11-12 00:15:02,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:02,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:15:02,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:02,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:15:02,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:15:02,638 INFO L87 Difference]: Start difference. First operand 158 states and 366 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-12 00:15:02,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:02,738 INFO L93 Difference]: Finished difference Result 155 states and 358 transitions. [2023-11-12 00:15:02,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:15:02,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2023-11-12 00:15:02,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:02,740 INFO L225 Difference]: With dead ends: 155 [2023-11-12 00:15:02,740 INFO L226 Difference]: Without dead ends: 155 [2023-11-12 00:15:02,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:15:02,742 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:02,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:15:02,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-11-12 00:15:02,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-11-12 00:15:02,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 2.324675324675325) internal successors, (358), 154 states have internal predecessors, (358), 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) [2023-11-12 00:15:02,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 358 transitions. [2023-11-12 00:15:02,751 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 358 transitions. Word has length 11 [2023-11-12 00:15:02,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:02,752 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 358 transitions. [2023-11-12 00:15:02,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-12 00:15:02,752 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 358 transitions. [2023-11-12 00:15:02,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 00:15:02,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:02,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:02,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:15:02,755 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 00:15:02,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:02,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1061792836, now seen corresponding path program 1 times [2023-11-12 00:15:02,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:02,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195317186] [2023-11-12 00:15:02,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:02,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:03,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:03,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:03,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195317186] [2023-11-12 00:15:03,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195317186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:03,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:03,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:15:03,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080078325] [2023-11-12 00:15:03,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:03,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:15:03,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:03,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:15:03,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:15:03,043 INFO L87 Difference]: Start difference. First operand 155 states and 358 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-12 00:15:03,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:03,185 INFO L93 Difference]: Finished difference Result 129 states and 255 transitions. [2023-11-12 00:15:03,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:15:03,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2023-11-12 00:15:03,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:03,186 INFO L225 Difference]: With dead ends: 129 [2023-11-12 00:15:03,187 INFO L226 Difference]: Without dead ends: 87 [2023-11-12 00:15:03,187 INFO L412 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 [2023-11-12 00:15:03,188 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 30 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:03,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 5 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:15:03,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-12 00:15:03,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-11-12 00:15:03,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.7906976744186047) internal successors, (154), 86 states have internal predecessors, (154), 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) [2023-11-12 00:15:03,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 154 transitions. [2023-11-12 00:15:03,192 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 154 transitions. Word has length 12 [2023-11-12 00:15:03,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:03,192 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 154 transitions. [2023-11-12 00:15:03,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-12 00:15:03,193 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 154 transitions. [2023-11-12 00:15:03,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:15:03,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:03,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:03,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:15:03,195 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 00:15:03,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:03,195 INFO L85 PathProgramCache]: Analyzing trace with hash 4094404, now seen corresponding path program 1 times [2023-11-12 00:15:03,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:03,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668836150] [2023-11-12 00:15:03,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:03,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:05,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:05,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:05,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668836150] [2023-11-12 00:15:05,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668836150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:05,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:05,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 00:15:05,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296125000] [2023-11-12 00:15:05,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:05,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 00:15:05,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:05,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 00:15:05,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:15:05,436 INFO L87 Difference]: Start difference. First operand 87 states and 154 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2023-11-12 00:15:05,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:05,765 INFO L93 Difference]: Finished difference Result 136 states and 236 transitions. [2023-11-12 00:15:05,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:15:05,766 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 14 [2023-11-12 00:15:05,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:05,767 INFO L225 Difference]: With dead ends: 136 [2023-11-12 00:15:05,767 INFO L226 Difference]: Without dead ends: 126 [2023-11-12 00:15:05,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 00:15:05,768 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 27 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:05,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 10 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:15:05,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-12 00:15:05,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 119. [2023-11-12 00:15:05,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 118 states have (on average 1.771186440677966) internal successors, (209), 118 states have internal predecessors, (209), 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) [2023-11-12 00:15:05,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 209 transitions. [2023-11-12 00:15:05,776 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 209 transitions. Word has length 14 [2023-11-12 00:15:05,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:05,776 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 209 transitions. [2023-11-12 00:15:05,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2023-11-12 00:15:05,777 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 209 transitions. [2023-11-12 00:15:05,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:15:05,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:05,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:05,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 00:15:05,783 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 00:15:05,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:05,783 INFO L85 PathProgramCache]: Analyzing trace with hash 2127450268, now seen corresponding path program 2 times [2023-11-12 00:15:05,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:05,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922470309] [2023-11-12 00:15:05,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:05,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:06,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:06,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:06,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922470309] [2023-11-12 00:15:06,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922470309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:06,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:06,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:15:06,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739359864] [2023-11-12 00:15:06,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:06,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:15:06,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:06,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:15:06,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:15:06,094 INFO L87 Difference]: Start difference. First operand 119 states and 209 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-12 00:15:06,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:06,226 INFO L93 Difference]: Finished difference Result 97 states and 163 transitions. [2023-11-12 00:15:06,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:15:06,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2023-11-12 00:15:06,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:06,227 INFO L225 Difference]: With dead ends: 97 [2023-11-12 00:15:06,227 INFO L226 Difference]: Without dead ends: 65 [2023-11-12 00:15:06,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:15:06,228 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 31 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:06,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 5 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:15:06,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-12 00:15:06,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2023-11-12 00:15:06,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.6346153846153846) internal successors, (85), 52 states have internal predecessors, (85), 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) [2023-11-12 00:15:06,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 85 transitions. [2023-11-12 00:15:06,232 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 85 transitions. Word has length 14 [2023-11-12 00:15:06,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:06,232 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 85 transitions. [2023-11-12 00:15:06,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-12 00:15:06,232 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 85 transitions. [2023-11-12 00:15:06,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:15:06,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:06,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:06,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 00:15:06,233 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 00:15:06,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:06,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1646658749, now seen corresponding path program 1 times [2023-11-12 00:15:06,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:06,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008351332] [2023-11-12 00:15:06,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:06,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:09,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:09,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:09,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008351332] [2023-11-12 00:15:09,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008351332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:09,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:09,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 00:15:09,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918566868] [2023-11-12 00:15:09,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:09,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 00:15:09,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:09,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 00:15:09,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-12 00:15:09,748 INFO L87 Difference]: Start difference. First operand 53 states and 85 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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) [2023-11-12 00:15:10,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:10,539 INFO L93 Difference]: Finished difference Result 84 states and 134 transitions. [2023-11-12 00:15:10,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 00:15:10,540 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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 18 [2023-11-12 00:15:10,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:10,541 INFO L225 Difference]: With dead ends: 84 [2023-11-12 00:15:10,541 INFO L226 Difference]: Without dead ends: 63 [2023-11-12 00:15:10,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2023-11-12 00:15:10,542 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 43 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:10,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 19 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 00:15:10,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-12 00:15:10,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 57. [2023-11-12 00:15:10,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.6071428571428572) internal successors, (90), 56 states have internal predecessors, (90), 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) [2023-11-12 00:15:10,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 90 transitions. [2023-11-12 00:15:10,545 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 90 transitions. Word has length 18 [2023-11-12 00:15:10,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:10,545 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 90 transitions. [2023-11-12 00:15:10,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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) [2023-11-12 00:15:10,546 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 90 transitions. [2023-11-12 00:15:10,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:15:10,546 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:10,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:10,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 00:15:10,547 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 00:15:10,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:10,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1754944549, now seen corresponding path program 2 times [2023-11-12 00:15:10,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:10,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755905538] [2023-11-12 00:15:10,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:10,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:12,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:12,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:12,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755905538] [2023-11-12 00:15:12,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755905538] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:12,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:12,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 00:15:12,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759638795] [2023-11-12 00:15:12,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:12,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 00:15:12,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:12,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 00:15:12,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-12 00:15:12,537 INFO L87 Difference]: Start difference. First operand 57 states and 90 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2023-11-12 00:15:12,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:12,850 INFO L93 Difference]: Finished difference Result 79 states and 123 transitions. [2023-11-12 00:15:12,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 00:15:12,851 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 18 [2023-11-12 00:15:12,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:12,852 INFO L225 Difference]: With dead ends: 79 [2023-11-12 00:15:12,852 INFO L226 Difference]: Without dead ends: 55 [2023-11-12 00:15:12,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-12 00:15:12,853 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 19 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:12,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 16 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:15:12,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-12 00:15:12,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 46. [2023-11-12 00:15:12,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.5333333333333334) internal successors, (69), 45 states have internal predecessors, (69), 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) [2023-11-12 00:15:12,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 69 transitions. [2023-11-12 00:15:12,856 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 69 transitions. Word has length 18 [2023-11-12 00:15:12,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:12,857 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 69 transitions. [2023-11-12 00:15:12,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2023-11-12 00:15:12,857 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 69 transitions. [2023-11-12 00:15:12,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:15:12,857 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:12,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:12,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 00:15:12,858 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 00:15:12,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:12,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1294409725, now seen corresponding path program 3 times [2023-11-12 00:15:12,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:12,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977517063] [2023-11-12 00:15:12,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:12,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:13,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:13,717 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:13,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977517063] [2023-11-12 00:15:13,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977517063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:13,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:13,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:15:13,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271026553] [2023-11-12 00:15:13,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:13,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:15:13,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:13,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:15:13,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:15:13,719 INFO L87 Difference]: Start difference. First operand 46 states and 69 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2023-11-12 00:15:13,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:13,897 INFO L93 Difference]: Finished difference Result 45 states and 68 transitions. [2023-11-12 00:15:13,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:15:13,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2023-11-12 00:15:13,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:13,899 INFO L225 Difference]: With dead ends: 45 [2023-11-12 00:15:13,899 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:15:13,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:15:13,900 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:13,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 0 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:15:13,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:15:13,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:15:13,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-11-12 00:15:13,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:15:13,901 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2023-11-12 00:15:13,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:13,901 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:15:13,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2023-11-12 00:15:13,902 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:15:13,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:15:13,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2023-11-12 00:15:13,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 10 remaining) [2023-11-12 00:15:13,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2023-11-12 00:15:13,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2023-11-12 00:15:13,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2023-11-12 00:15:13,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (4 of 10 remaining) [2023-11-12 00:15:13,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2023-11-12 00:15:13,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2023-11-12 00:15:13,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2023-11-12 00:15:13,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2023-11-12 00:15:13,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 00:15:13,910 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:13,916 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 00:15:13,916 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:15:13,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:15:13 BasicIcfg [2023-11-12 00:15:13,919 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:15:13,920 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:15:13,920 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:15:13,920 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:15:13,921 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:14:52" (3/4) ... [2023-11-12 00:15:13,923 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:15:13,926 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 00:15:13,926 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 00:15:13,932 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-11-12 00:15:13,933 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-12 00:15:13,933 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:15:13,934 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:15:14,028 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:15:14,043 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:15:14,043 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:15:14,044 INFO L158 Benchmark]: Toolchain (without parser) took 23909.80ms. Allocated memory was 153.1MB in the beginning and 406.8MB in the end (delta: 253.8MB). Free memory was 120.0MB in the beginning and 313.8MB in the end (delta: -193.8MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2023-11-12 00:15:14,044 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:15:14,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 652.50ms. Allocated memory is still 153.1MB. Free memory was 120.0MB in the beginning and 94.2MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-12 00:15:14,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.21ms. Allocated memory is still 153.1MB. Free memory was 94.2MB in the beginning and 90.7MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:15:14,045 INFO L158 Benchmark]: Boogie Preprocessor took 40.14ms. Allocated memory is still 153.1MB. Free memory was 90.7MB in the beginning and 88.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:15:14,046 INFO L158 Benchmark]: RCFGBuilder took 1111.75ms. Allocated memory is still 153.1MB. Free memory was 88.6MB in the beginning and 72.5MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:15:14,046 INFO L158 Benchmark]: TraceAbstraction took 21894.35ms. Allocated memory was 153.1MB in the beginning and 406.8MB in the end (delta: 253.8MB). Free memory was 71.4MB in the beginning and 318.0MB in the end (delta: -246.7MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2023-11-12 00:15:14,048 INFO L158 Benchmark]: Witness Printer took 123.09ms. Allocated memory is still 406.8MB. Free memory was 318.0MB in the beginning and 313.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:15:14,051 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 652.50ms. Allocated memory is still 153.1MB. Free memory was 120.0MB in the beginning and 94.2MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.21ms. Allocated memory is still 153.1MB. Free memory was 94.2MB in the beginning and 90.7MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.14ms. Allocated memory is still 153.1MB. Free memory was 90.7MB in the beginning and 88.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1111.75ms. Allocated memory is still 153.1MB. Free memory was 88.6MB in the beginning and 72.5MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 21894.35ms. Allocated memory was 153.1MB in the beginning and 406.8MB in the end (delta: 253.8MB). Free memory was 71.4MB in the beginning and 318.0MB in the end (delta: -246.7MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Witness Printer took 123.09ms. Allocated memory is still 406.8MB. Free memory was 318.0MB in the beginning and 313.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 112 PlacesBefore, 35 PlacesAfterwards, 108 TransitionsBefore, 29 TransitionsAfterwards, 1708 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 110 TotalNumberOfCompositions, 5372 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2321, independent: 2122, independent conditional: 0, independent unconditional: 2122, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1313, independent: 1233, independent conditional: 0, independent unconditional: 1233, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1313, independent: 1206, independent conditional: 0, independent unconditional: 1206, dependent: 107, dependent conditional: 0, dependent unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 107, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1623, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 1584, dependent conditional: 0, dependent unconditional: 1584, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2321, independent: 889, independent conditional: 0, independent unconditional: 889, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 1313, unknown conditional: 0, unknown unconditional: 1313] , Statistics on independence cache: Total cache size (in pairs): 168, Positive cache size: 133, Positive conditional cache size: 0, Positive unconditional cache size: 133, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 833]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 128 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 21.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 215 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 215 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 839 IncrementalHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 20 mSDtfsCounter, 839 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=334occurred in iteration=0, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 34 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 10.7s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 1444 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 00:15:14,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1527d-a79e-45d8-8cc6-fc4d7f66d0e7/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE