./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe033_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe033_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ --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 03e09f2995f610da86eeaa1f1ee03bc9ee01699bf21a2567d5a1129cd8929582 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:47:24,675 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:47:24,773 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-19 04:47:24,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:47:24,779 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:47:24,806 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:47:24,807 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:47:24,808 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:47:24,809 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:47:24,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:47:24,810 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:47:24,810 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:47:24,811 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:47:24,812 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:47:24,812 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:47:24,813 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:47:24,813 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:47:24,814 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:47:24,815 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:47:24,815 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:47:24,816 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:47:24,817 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:47:24,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:47:24,818 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:47:24,819 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:47:24,820 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:47:24,820 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:47:24,821 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:47:24,821 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:47:24,822 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:47:24,822 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:47:24,823 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:47:24,824 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:47:24,824 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:47:24,825 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:47:24,825 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:47:24,826 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:47:24,826 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:47:24,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:47:24,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:47:24,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:47:24,828 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:47:24,828 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:47:24,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:47:24,829 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:47:24,829 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:47:24,829 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_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03e09f2995f610da86eeaa1f1ee03bc9ee01699bf21a2567d5a1129cd8929582 [2023-11-19 04:47:25,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:47:25,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:47:25,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:47:25,189 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:47:25,190 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:47:25,192 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-wmm/safe033_tso.i [2023-11-19 04:47:28,627 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:47:29,054 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:47:29,059 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/sv-benchmarks/c/pthread-wmm/safe033_tso.i [2023-11-19 04:47:29,075 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/data/760aaa96c/f2bea8a131c0451998645b65de25c86c/FLAG3c761cfec [2023-11-19 04:47:29,093 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/data/760aaa96c/f2bea8a131c0451998645b65de25c86c [2023-11-19 04:47:29,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:47:29,105 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:47:29,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:47:29,108 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:47:29,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:47:29,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:29" (1/1) ... [2023-11-19 04:47:29,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@654712c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:29, skipping insertion in model container [2023-11-19 04:47:29,116 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:29" (1/1) ... [2023-11-19 04:47:29,186 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:47:29,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:47:29,595 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:47:29,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:47:29,720 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:47:29,721 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:47:29,729 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:47:29,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:29 WrapperNode [2023-11-19 04:47:29,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:47:29,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:47:29,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:47:29,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:47:29,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:29" (1/1) ... [2023-11-19 04:47:29,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:29" (1/1) ... [2023-11-19 04:47:29,803 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2023-11-19 04:47:29,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:47:29,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:47:29,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:47:29,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:47:29,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:29" (1/1) ... [2023-11-19 04:47:29,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:29" (1/1) ... [2023-11-19 04:47:29,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:29" (1/1) ... [2023-11-19 04:47:29,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:29" (1/1) ... [2023-11-19 04:47:29,839 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:29" (1/1) ... [2023-11-19 04:47:29,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:29" (1/1) ... [2023-11-19 04:47:29,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:29" (1/1) ... [2023-11-19 04:47:29,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:29" (1/1) ... [2023-11-19 04:47:29,848 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:47:29,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:47:29,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:47:29,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:47:29,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:29" (1/1) ... [2023-11-19 04:47:29,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:47:29,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:47:29,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:47:29,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:47:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:47:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:47:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:47:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:47:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:47:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 04:47:29,947 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 04:47:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 04:47:29,948 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 04:47:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:47:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:47:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:47:29,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:47:29,951 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:47:30,072 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:47:30,075 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:47:30,277 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:47:30,287 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:47:30,287 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:47:30,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:30 BoogieIcfgContainer [2023-11-19 04:47:30,292 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:47:30,295 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:47:30,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:47:30,298 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:47:30,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:47:29" (1/3) ... [2023-11-19 04:47:30,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187219c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:30, skipping insertion in model container [2023-11-19 04:47:30,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:29" (2/3) ... [2023-11-19 04:47:30,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187219c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:30, skipping insertion in model container [2023-11-19 04:47:30,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:30" (3/3) ... [2023-11-19 04:47:30,302 INFO L112 eAbstractionObserver]: Analyzing ICFG safe033_tso.i [2023-11-19 04:47:30,323 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:47:30,323 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 04:47:30,323 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:47:30,381 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 04:47:30,416 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:47:30,439 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 87 transitions, 182 flow [2023-11-19 04:47:30,442 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 87 transitions, 182 flow [2023-11-19 04:47:30,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 87 transitions, 182 flow [2023-11-19 04:47:30,496 INFO L124 PetriNetUnfolderBase]: 3/85 cut-off events. [2023-11-19 04:47:30,496 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 04:47:30,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 85 events. 3/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-11-19 04:47:30,504 INFO L119 LiptonReduction]: Number of co-enabled transitions 1426 [2023-11-19 04:47:33,608 INFO L134 LiptonReduction]: Checked pairs total: 2167 [2023-11-19 04:47:33,608 INFO L136 LiptonReduction]: Total number of compositions: 95 [2023-11-19 04:47:33,617 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 22 transitions, 52 flow [2023-11-19 04:47:33,641 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 100 states, 94 states have (on average 2.4680851063829787) internal successors, (232), 99 states have internal predecessors, (232), 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) [2023-11-19 04:47:33,661 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:47:33,669 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;@787a640f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:47:33,669 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 04:47:33,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 94 states have (on average 2.4680851063829787) internal successors, (232), 99 states have internal predecessors, (232), 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) [2023-11-19 04:47:33,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-19 04:47:33,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:33,678 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-19 04:47:33,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 04:47:33,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:33,684 INFO L85 PathProgramCache]: Analyzing trace with hash 326, now seen corresponding path program 1 times [2023-11-19 04:47:33,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:33,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333133347] [2023-11-19 04:47:33,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:33,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:33,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:33,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:33,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333133347] [2023-11-19 04:47:33,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333133347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:33,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:33,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 04:47:33,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729535033] [2023-11-19 04:47:33,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:33,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:47:33,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:33,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:47:33,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:47:33,857 INFO L87 Difference]: Start difference. First operand has 100 states, 94 states have (on average 2.4680851063829787) internal successors, (232), 99 states have internal predecessors, (232), 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) [2023-11-19 04:47:33,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:33,896 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2023-11-19 04:47:33,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:47:33,899 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 [2023-11-19 04:47:33,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:33,909 INFO L225 Difference]: With dead ends: 90 [2023-11-19 04:47:33,909 INFO L226 Difference]: Without dead ends: 90 [2023-11-19 04:47:33,911 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 [2023-11-19 04:47:33,914 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:33,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:47:33,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-19 04:47:33,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-11-19 04:47:33,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 88 states have (on average 2.272727272727273) internal successors, (200), 89 states have internal predecessors, (200), 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) [2023-11-19 04:47:33,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 200 transitions. [2023-11-19 04:47:33,985 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 200 transitions. Word has length 1 [2023-11-19 04:47:33,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:33,986 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 200 transitions. [2023-11-19 04:47:33,986 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) [2023-11-19 04:47:33,987 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 200 transitions. [2023-11-19 04:47:33,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:47:33,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:33,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:33,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:47:33,989 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 04:47:33,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:33,990 INFO L85 PathProgramCache]: Analyzing trace with hash -91017953, now seen corresponding path program 1 times [2023-11-19 04:47:33,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:33,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497607203] [2023-11-19 04:47:33,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:33,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:34,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:34,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:34,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497607203] [2023-11-19 04:47:34,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497607203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:34,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:34,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:47:34,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177144302] [2023-11-19 04:47:34,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:34,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:47:34,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:34,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:47:34,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:47:34,473 INFO L87 Difference]: Start difference. First operand 90 states and 200 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-11-19 04:47:34,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:34,566 INFO L93 Difference]: Finished difference Result 116 states and 248 transitions. [2023-11-19 04:47:34,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:47:34,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 [2023-11-19 04:47:34,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:34,570 INFO L225 Difference]: With dead ends: 116 [2023-11-19 04:47:34,570 INFO L226 Difference]: Without dead ends: 116 [2023-11-19 04:47:34,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:47:34,572 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:34,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:47:34,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-19 04:47:34,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 102. [2023-11-19 04:47:34,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 100 states have (on average 2.28) internal successors, (228), 101 states have internal predecessors, (228), 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) [2023-11-19 04:47:34,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 228 transitions. [2023-11-19 04:47:34,589 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 228 transitions. Word has length 7 [2023-11-19 04:47:34,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:34,590 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 228 transitions. [2023-11-19 04:47:34,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-11-19 04:47:34,591 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 228 transitions. [2023-11-19 04:47:34,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:47:34,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:34,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:34,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:47:34,593 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 04:47:34,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:34,594 INFO L85 PathProgramCache]: Analyzing trace with hash -91017930, now seen corresponding path program 1 times [2023-11-19 04:47:34,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:34,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436795694] [2023-11-19 04:47:34,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:34,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:34,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:34,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436795694] [2023-11-19 04:47:34,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436795694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:34,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:34,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:47:34,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160458224] [2023-11-19 04:47:34,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:34,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:47:34,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:34,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:47:34,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:47:34,956 INFO L87 Difference]: Start difference. First operand 102 states and 228 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-11-19 04:47:35,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:35,002 INFO L93 Difference]: Finished difference Result 86 states and 174 transitions. [2023-11-19 04:47:35,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:47:35,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 [2023-11-19 04:47:35,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:35,007 INFO L225 Difference]: With dead ends: 86 [2023-11-19 04:47:35,007 INFO L226 Difference]: Without dead ends: 70 [2023-11-19 04:47:35,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:47:35,013 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:35,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:47:35,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-19 04:47:35,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-11-19 04:47:35,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 2.1449275362318843) internal successors, (148), 69 states have internal predecessors, (148), 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) [2023-11-19 04:47:35,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 148 transitions. [2023-11-19 04:47:35,042 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 148 transitions. Word has length 7 [2023-11-19 04:47:35,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:35,042 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 148 transitions. [2023-11-19 04:47:35,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-11-19 04:47:35,043 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 148 transitions. [2023-11-19 04:47:35,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:47:35,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:35,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:35,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:47:35,045 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 04:47:35,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:35,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1513868943, now seen corresponding path program 1 times [2023-11-19 04:47:35,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:35,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160534468] [2023-11-19 04:47:35,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:35,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:35,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:35,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:35,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160534468] [2023-11-19 04:47:35,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160534468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:35,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:35,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:47:35,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434874560] [2023-11-19 04:47:35,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:35,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:47:35,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:35,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:47:35,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:47:35,268 INFO L87 Difference]: Start difference. First operand 70 states and 148 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 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) [2023-11-19 04:47:35,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:35,301 INFO L93 Difference]: Finished difference Result 47 states and 79 transitions. [2023-11-19 04:47:35,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:47:35,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 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 [2023-11-19 04:47:35,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:35,303 INFO L225 Difference]: With dead ends: 47 [2023-11-19 04:47:35,304 INFO L226 Difference]: Without dead ends: 47 [2023-11-19 04:47:35,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:47:35,305 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:35,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:47:35,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-19 04:47:35,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-19 04:47:35,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.7173913043478262) internal successors, (79), 46 states have internal predecessors, (79), 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) [2023-11-19 04:47:35,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 79 transitions. [2023-11-19 04:47:35,311 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 79 transitions. Word has length 8 [2023-11-19 04:47:35,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:35,311 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 79 transitions. [2023-11-19 04:47:35,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 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) [2023-11-19 04:47:35,312 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2023-11-19 04:47:35,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:47:35,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:35,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:35,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:47:35,313 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 04:47:35,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:35,314 INFO L85 PathProgramCache]: Analyzing trace with hash -888917183, now seen corresponding path program 1 times [2023-11-19 04:47:35,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:35,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223671119] [2023-11-19 04:47:35,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:35,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:35,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:35,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:35,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223671119] [2023-11-19 04:47:35,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223671119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:35,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:35,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:47:35,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175132229] [2023-11-19 04:47:35,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:35,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:47:35,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:35,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:47:35,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:47:35,476 INFO L87 Difference]: Start difference. First operand 47 states and 79 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-19 04:47:35,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:35,507 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2023-11-19 04:47:35,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:47:35,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2023-11-19 04:47:35,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:35,509 INFO L225 Difference]: With dead ends: 29 [2023-11-19 04:47:35,509 INFO L226 Difference]: Without dead ends: 29 [2023-11-19 04:47:35,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:47:35,510 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:35,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:47:35,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-19 04:47:35,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-19 04:47:35,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 28 states have internal predecessors, (43), 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) [2023-11-19 04:47:35,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2023-11-19 04:47:35,517 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 10 [2023-11-19 04:47:35,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:35,517 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2023-11-19 04:47:35,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-19 04:47:35,518 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2023-11-19 04:47:35,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:47:35,519 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:35,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:35,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:47:35,520 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 04:47:35,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:35,524 INFO L85 PathProgramCache]: Analyzing trace with hash -492145072, now seen corresponding path program 1 times [2023-11-19 04:47:35,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:35,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821114831] [2023-11-19 04:47:35,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:35,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:35,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:35,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:35,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821114831] [2023-11-19 04:47:35,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821114831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:35,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:35,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:47:35,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874142434] [2023-11-19 04:47:35,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:35,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:47:35,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:35,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:47:35,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:47:35,702 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-19 04:47:35,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:35,771 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2023-11-19 04:47:35,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:47:35,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2023-11-19 04:47:35,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:35,774 INFO L225 Difference]: With dead ends: 37 [2023-11-19 04:47:35,774 INFO L226 Difference]: Without dead ends: 23 [2023-11-19 04:47:35,774 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 [2023-11-19 04:47:35,783 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:35,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:47:35,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-19 04:47:35,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2023-11-19 04:47:35,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 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) [2023-11-19 04:47:35,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2023-11-19 04:47:35,789 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 13 [2023-11-19 04:47:35,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:35,789 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2023-11-19 04:47:35,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-19 04:47:35,789 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-11-19 04:47:35,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:47:35,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:35,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:35,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 04:47:35,791 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 04:47:35,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:35,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1042115856, now seen corresponding path program 2 times [2023-11-19 04:47:35,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:35,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593604839] [2023-11-19 04:47:35,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:35,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:35,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:35,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:35,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593604839] [2023-11-19 04:47:35,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593604839] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:35,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:35,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:47:35,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530738446] [2023-11-19 04:47:35,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:35,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:47:35,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:35,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:47:35,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:47:35,983 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2023-11-19 04:47:36,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:36,048 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2023-11-19 04:47:36,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:47:36,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2023-11-19 04:47:36,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:36,049 INFO L225 Difference]: With dead ends: 29 [2023-11-19 04:47:36,050 INFO L226 Difference]: Without dead ends: 17 [2023-11-19 04:47:36,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:47:36,051 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:36,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:47:36,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-19 04:47:36,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-19 04:47:36,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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) [2023-11-19 04:47:36,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2023-11-19 04:47:36,062 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 13 [2023-11-19 04:47:36,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:36,062 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2023-11-19 04:47:36,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2023-11-19 04:47:36,063 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2023-11-19 04:47:36,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:47:36,063 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:36,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:36,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 04:47:36,064 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 04:47:36,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:36,065 INFO L85 PathProgramCache]: Analyzing trace with hash -829117554, now seen corresponding path program 3 times [2023-11-19 04:47:36,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:36,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857609984] [2023-11-19 04:47:36,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:36,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:36,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:36,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:36,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857609984] [2023-11-19 04:47:36,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857609984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:36,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:36,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:47:36,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670702793] [2023-11-19 04:47:36,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:36,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:47:36,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:36,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:47:36,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:47:36,232 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2023-11-19 04:47:36,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:36,288 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2023-11-19 04:47:36,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:47:36,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2023-11-19 04:47:36,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:36,289 INFO L225 Difference]: With dead ends: 16 [2023-11-19 04:47:36,289 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:47:36,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:47:36,290 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:36,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:47:36,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:47:36,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:47:36,292 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) [2023-11-19 04:47:36,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:47:36,292 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2023-11-19 04:47:36,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:36,292 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:47:36,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2023-11-19 04:47:36,292 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:47:36,293 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:47:36,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 8 remaining) [2023-11-19 04:47:36,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-11-19 04:47:36,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-11-19 04:47:36,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2023-11-19 04:47:36,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (3 of 8 remaining) [2023-11-19 04:47:36,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2023-11-19 04:47:36,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-11-19 04:47:36,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2023-11-19 04:47:36,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 04:47:36,300 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2023-11-19 04:47:36,303 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 04:47:36,303 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:47:36,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:47:36 BasicIcfg [2023-11-19 04:47:36,306 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:47:36,307 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:47:36,307 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:47:36,307 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:47:36,308 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:30" (3/4) ... [2023-11-19 04:47:36,310 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:47:36,315 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 04:47:36,315 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 04:47:36,320 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-19 04:47:36,320 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:47:36,320 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 04:47:36,321 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:47:36,410 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:47:36,410 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:47:36,410 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:47:36,411 INFO L158 Benchmark]: Toolchain (without parser) took 7305.92ms. Allocated memory was 178.3MB in the beginning and 218.1MB in the end (delta: 39.8MB). Free memory was 146.1MB in the beginning and 110.4MB in the end (delta: 35.7MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. [2023-11-19 04:47:36,411 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:47:36,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 622.17ms. Allocated memory is still 178.3MB. Free memory was 146.1MB in the beginning and 126.1MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 04:47:36,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.17ms. Allocated memory is still 178.3MB. Free memory was 126.1MB in the beginning and 124.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:47:36,413 INFO L158 Benchmark]: Boogie Preprocessor took 43.54ms. Allocated memory is still 178.3MB. Free memory was 124.0MB in the beginning and 122.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:47:36,413 INFO L158 Benchmark]: RCFGBuilder took 442.87ms. Allocated memory is still 178.3MB. Free memory was 122.7MB in the beginning and 108.9MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:47:36,414 INFO L158 Benchmark]: TraceAbstraction took 6011.97ms. Allocated memory was 178.3MB in the beginning and 218.1MB in the end (delta: 39.8MB). Free memory was 108.5MB in the beginning and 114.6MB in the end (delta: -6.1MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2023-11-19 04:47:36,414 INFO L158 Benchmark]: Witness Printer took 103.54ms. Allocated memory is still 218.1MB. Free memory was 114.6MB in the beginning and 110.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:47:36,416 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 622.17ms. Allocated memory is still 178.3MB. Free memory was 146.1MB in the beginning and 126.1MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.17ms. Allocated memory is still 178.3MB. Free memory was 126.1MB in the beginning and 124.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.54ms. Allocated memory is still 178.3MB. Free memory was 124.0MB in the beginning and 122.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 442.87ms. Allocated memory is still 178.3MB. Free memory was 122.7MB in the beginning and 108.9MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6011.97ms. Allocated memory was 178.3MB in the beginning and 218.1MB in the end (delta: 39.8MB). Free memory was 108.5MB in the beginning and 114.6MB in the end (delta: -6.1MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * Witness Printer took 103.54ms. Allocated memory is still 218.1MB. Free memory was 114.6MB in the beginning and 110.4MB 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: 3.2s, 91 PlacesBefore, 28 PlacesAfterwards, 87 TransitionsBefore, 22 TransitionsAfterwards, 1426 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 95 TotalNumberOfCompositions, 2167 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1462, independent: 1400, independent conditional: 0, independent unconditional: 1400, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 984, independent: 961, independent conditional: 0, independent unconditional: 961, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 984, independent: 959, independent conditional: 0, independent unconditional: 959, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1462, independent: 439, independent conditional: 0, independent unconditional: 439, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 984, unknown conditional: 0, unknown unconditional: 984] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, 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: -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: 758]: 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, 104 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 255 IncrementalHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 9 mSDtfsCounter, 255 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=2, InterpolantAutomatonStates: 33, 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, 8 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 295 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 04:47:36,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e41e33-8136-4c04-bdb5-61cf50510660/bin/utaipan-verify-t7M7D8N6sZ/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