./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b 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_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --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 390a12f9f7a5c311c1cdcecac54987f654ebac30db2fbb7661324a5599d93cf6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:05:15,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:05:15,915 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 21:05:15,925 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:05:15,928 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:05:15,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:05:15,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:05:15,961 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:05:15,961 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:05:15,962 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:05:15,963 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:05:15,963 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:05:15,964 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:05:15,964 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 21:05:15,965 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:05:15,965 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:05:15,966 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 21:05:15,973 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 21:05:15,974 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:05:15,975 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 21:05:15,975 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 21:05:15,976 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 21:05:15,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:05:15,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:05:15,978 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:05:15,978 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:05:15,979 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:05:15,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:05:15,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:05:15,980 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:05:15,981 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:05:15,981 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:05:15,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:05:15,982 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:05:15,982 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:05:15,982 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:05:15,983 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:05:15,983 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:05:15,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:05:15,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:05:15,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:05:15,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:05:15,984 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 21:05:15,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:05:15,986 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:05:15,986 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:05:15,986 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_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 390a12f9f7a5c311c1cdcecac54987f654ebac30db2fbb7661324a5599d93cf6 [2023-11-06 21:05:16,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:05:16,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:05:16,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:05:16,286 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:05:16,288 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:05:16,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2023-11-06 21:05:19,578 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:05:19,935 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:05:19,939 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2023-11-06 21:05:19,967 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/data/b6312b0ab/2026af7eed5943b9903392cb7d56d7db/FLAGc2501e566 [2023-11-06 21:05:19,983 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/data/b6312b0ab/2026af7eed5943b9903392cb7d56d7db [2023-11-06 21:05:19,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:05:19,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:05:19,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:05:19,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:05:20,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:05:20,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:05:19" (1/1) ... [2023-11-06 21:05:20,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dbe6208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:20, skipping insertion in model container [2023-11-06 21:05:20,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:05:19" (1/1) ... [2023-11-06 21:05:20,057 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:05:20,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:05:20,568 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:05:20,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:05:20,702 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:05:20,702 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:05:20,710 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:05:20,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:20 WrapperNode [2023-11-06 21:05:20,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:05:20,712 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:05:20,713 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:05:20,713 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:05:20,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:20" (1/1) ... [2023-11-06 21:05:20,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:20" (1/1) ... [2023-11-06 21:05:20,806 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133 [2023-11-06 21:05:20,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:05:20,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:05:20,809 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:05:20,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:05:20,819 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:20" (1/1) ... [2023-11-06 21:05:20,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:20" (1/1) ... [2023-11-06 21:05:20,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:20" (1/1) ... [2023-11-06 21:05:20,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:20" (1/1) ... [2023-11-06 21:05:20,870 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:20" (1/1) ... [2023-11-06 21:05:20,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:20" (1/1) ... [2023-11-06 21:05:20,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:20" (1/1) ... [2023-11-06 21:05:20,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:20" (1/1) ... [2023-11-06 21:05:20,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:05:20,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:05:20,894 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:05:20,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:05:20,895 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:20" (1/1) ... [2023-11-06 21:05:20,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:05:20,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 21:05:20,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:05:20,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:05:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:05:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:05:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:05:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:05:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:05:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 21:05:20,979 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 21:05:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 21:05:20,980 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 21:05:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 21:05:20,980 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 21:05:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:05:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:05:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:05:20,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:05:20,983 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:05:21,173 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:05:21,175 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:05:21,599 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:05:21,764 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:05:21,764 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:05:21,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:05:21 BoogieIcfgContainer [2023-11-06 21:05:21,767 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:05:21,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:05:21,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:05:21,777 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:05:21,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:05:19" (1/3) ... [2023-11-06 21:05:21,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88c22c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:05:21, skipping insertion in model container [2023-11-06 21:05:21,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:20" (2/3) ... [2023-11-06 21:05:21,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88c22c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:05:21, skipping insertion in model container [2023-11-06 21:05:21,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:05:21" (3/3) ... [2023-11-06 21:05:21,786 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2023-11-06 21:05:21,808 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:05:21,808 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-06 21:05:21,808 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:05:21,891 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 21:05:21,938 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 21:05:21,966 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 125 transitions, 262 flow [2023-11-06 21:05:21,969 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 125 transitions, 262 flow [2023-11-06 21:05:21,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 125 transitions, 262 flow [2023-11-06 21:05:22,028 INFO L124 PetriNetUnfolderBase]: 3/122 cut-off events. [2023-11-06 21:05:22,029 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:05:22,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 122 events. 3/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-06 21:05:22,039 INFO L119 LiptonReduction]: Number of co-enabled transitions 2374 [2023-11-06 21:05:27,713 INFO L134 LiptonReduction]: Checked pairs total: 5918 [2023-11-06 21:05:27,713 INFO L136 LiptonReduction]: Total number of compositions: 131 [2023-11-06 21:05:27,728 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 34 transitions, 80 flow [2023-11-06 21:05:27,845 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 876 states, 863 states have (on average 3.2885283893395134) internal successors, (2838), 875 states have internal predecessors, (2838), 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) [2023-11-06 21:05:27,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:05:27,878 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;@7d47e1b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 21:05:27,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-06 21:05:27,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 876 states, 863 states have (on average 3.2885283893395134) internal successors, (2838), 875 states have internal predecessors, (2838), 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) [2023-11-06 21:05:27,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-06 21:05:27,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:27,887 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-06 21:05:27,887 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 21:05:27,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:27,892 INFO L85 PathProgramCache]: Analyzing trace with hash 561, now seen corresponding path program 1 times [2023-11-06 21:05:27,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 21:05:27,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419891166] [2023-11-06 21:05:27,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:27,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:05:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:05:28,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:05:28,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 21:05:28,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419891166] [2023-11-06 21:05:28,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419891166] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:05:28,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:05:28,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 21:05:28,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368187340] [2023-11-06 21:05:28,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:05:28,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:05:28,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 21:05:28,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:05:28,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:05:28,068 INFO L87 Difference]: Start difference. First operand has 876 states, 863 states have (on average 3.2885283893395134) internal successors, (2838), 875 states have internal predecessors, (2838), 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) [2023-11-06 21:05:28,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:05:28,175 INFO L93 Difference]: Finished difference Result 818 states and 2578 transitions. [2023-11-06 21:05:28,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:05:28,177 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 [2023-11-06 21:05:28,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:05:28,202 INFO L225 Difference]: With dead ends: 818 [2023-11-06 21:05:28,203 INFO L226 Difference]: Without dead ends: 818 [2023-11-06 21:05:28,204 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 [2023-11-06 21:05:28,207 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 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, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:05:28,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:05:28,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2023-11-06 21:05:28,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2023-11-06 21:05:28,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 813 states have (on average 3.1709717097170973) internal successors, (2578), 817 states have internal predecessors, (2578), 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) [2023-11-06 21:05:28,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 2578 transitions. [2023-11-06 21:05:28,309 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 2578 transitions. Word has length 1 [2023-11-06 21:05:28,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:05:28,310 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 2578 transitions. [2023-11-06 21:05:28,310 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) [2023-11-06 21:05:28,310 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 2578 transitions. [2023-11-06 21:05:28,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 21:05:28,311 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:28,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 21:05:28,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:05:28,311 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 21:05:28,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:28,312 INFO L85 PathProgramCache]: Analyzing trace with hash 529621835, now seen corresponding path program 1 times [2023-11-06 21:05:28,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 21:05:28,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775407135] [2023-11-06 21:05:28,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:28,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:05:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:05:28,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:05:28,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 21:05:28,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775407135] [2023-11-06 21:05:28,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775407135] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:05:28,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:05:28,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:05:28,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996375942] [2023-11-06 21:05:28,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:05:28,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:05:28,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 21:05:28,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:05:28,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:05:28,764 INFO L87 Difference]: Start difference. First operand 818 states and 2578 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-06 21:05:28,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:05:28,861 INFO L93 Difference]: Finished difference Result 670 states and 2079 transitions. [2023-11-06 21:05:28,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:05:28,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-06 21:05:28,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:05:28,869 INFO L225 Difference]: With dead ends: 670 [2023-11-06 21:05:28,869 INFO L226 Difference]: Without dead ends: 650 [2023-11-06 21:05:28,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:05:28,871 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:05:28,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:05:28,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-11-06 21:05:28,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2023-11-06 21:05:28,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 648 states have (on average 3.1296296296296298) internal successors, (2028), 649 states have internal predecessors, (2028), 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) [2023-11-06 21:05:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 2028 transitions. [2023-11-06 21:05:28,903 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 2028 transitions. Word has length 5 [2023-11-06 21:05:28,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:05:28,904 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 2028 transitions. [2023-11-06 21:05:28,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-06 21:05:28,904 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 2028 transitions. [2023-11-06 21:05:28,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 21:05:28,907 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:28,907 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:05:28,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:05:28,907 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 21:05:28,908 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:28,908 INFO L85 PathProgramCache]: Analyzing trace with hash -675627934, now seen corresponding path program 1 times [2023-11-06 21:05:28,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 21:05:28,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336046498] [2023-11-06 21:05:28,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:28,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:05:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:05:29,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:05:29,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 21:05:29,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336046498] [2023-11-06 21:05:29,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336046498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:05:29,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:05:29,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:05:29,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158747124] [2023-11-06 21:05:29,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:05:29,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:05:29,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 21:05:29,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:05:29,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:05:29,443 INFO L87 Difference]: Start difference. First operand 650 states and 2028 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-11-06 21:05:29,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:05:29,588 INFO L93 Difference]: Finished difference Result 550 states and 1693 transitions. [2023-11-06 21:05:29,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:05:29,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 [2023-11-06 21:05:29,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:05:29,595 INFO L225 Difference]: With dead ends: 550 [2023-11-06 21:05:29,595 INFO L226 Difference]: Without dead ends: 550 [2023-11-06 21:05:29,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:05:29,597 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 22 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:05:29,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 9 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:05:29,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-11-06 21:05:29,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2023-11-06 21:05:29,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 549 states have (on average 3.083788706739526) internal successors, (1693), 549 states have internal predecessors, (1693), 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) [2023-11-06 21:05:29,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 1693 transitions. [2023-11-06 21:05:29,650 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 1693 transitions. Word has length 10 [2023-11-06 21:05:29,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:05:29,651 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 1693 transitions. [2023-11-06 21:05:29,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-11-06 21:05:29,652 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 1693 transitions. [2023-11-06 21:05:29,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 21:05:29,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:29,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:05:29,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:05:29,655 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 21:05:29,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:29,655 INFO L85 PathProgramCache]: Analyzing trace with hash -675627975, now seen corresponding path program 1 times [2023-11-06 21:05:29,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 21:05:29,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433893534] [2023-11-06 21:05:29,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:29,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:05:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:05:29,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:05:29,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 21:05:29,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433893534] [2023-11-06 21:05:29,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433893534] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:05:29,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:05:29,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:05:29,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498042634] [2023-11-06 21:05:29,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:05:29,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:05:29,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 21:05:29,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:05:29,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:05:29,851 INFO L87 Difference]: Start difference. First operand 550 states and 1693 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) 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) [2023-11-06 21:05:29,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:05:29,996 INFO L93 Difference]: Finished difference Result 618 states and 1824 transitions. [2023-11-06 21:05:29,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:05:29,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) 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 [2023-11-06 21:05:29,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:05:30,002 INFO L225 Difference]: With dead ends: 618 [2023-11-06 21:05:30,002 INFO L226 Difference]: Without dead ends: 518 [2023-11-06 21:05:30,003 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 [2023-11-06 21:05:30,004 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 24 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:05:30,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 6 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:05:30,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2023-11-06 21:05:30,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2023-11-06 21:05:30,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 517 states have (on average 3.0425531914893615) internal successors, (1573), 517 states have internal predecessors, (1573), 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) [2023-11-06 21:05:30,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 1573 transitions. [2023-11-06 21:05:30,027 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 1573 transitions. Word has length 10 [2023-11-06 21:05:30,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:05:30,027 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 1573 transitions. [2023-11-06 21:05:30,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) 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) [2023-11-06 21:05:30,028 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 1573 transitions. [2023-11-06 21:05:30,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 21:05:30,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:30,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:05:30,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:05:30,031 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 21:05:30,032 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:30,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1520327781, now seen corresponding path program 1 times [2023-11-06 21:05:30,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 21:05:30,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147216275] [2023-11-06 21:05:30,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:30,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:05:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:05:30,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:05:30,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 21:05:30,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147216275] [2023-11-06 21:05:30,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147216275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:05:30,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:05:30,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:05:30,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489579794] [2023-11-06 21:05:30,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:05:30,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:05:30,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 21:05:30,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:05:30,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:05:30,194 INFO L87 Difference]: Start difference. First operand 518 states and 1573 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:05:30,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:05:30,378 INFO L93 Difference]: Finished difference Result 722 states and 2114 transitions. [2023-11-06 21:05:30,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:05:30,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-06 21:05:30,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:05:30,383 INFO L225 Difference]: With dead ends: 722 [2023-11-06 21:05:30,383 INFO L226 Difference]: Without dead ends: 350 [2023-11-06 21:05:30,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:05:30,384 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 48 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 21:05:30,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 8 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 21:05:30,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-11-06 21:05:30,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2023-11-06 21:05:30,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 349 states have (on average 2.8624641833810887) internal successors, (999), 349 states have internal predecessors, (999), 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) [2023-11-06 21:05:30,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 999 transitions. [2023-11-06 21:05:30,400 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 999 transitions. Word has length 12 [2023-11-06 21:05:30,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:05:30,401 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 999 transitions. [2023-11-06 21:05:30,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:05:30,401 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 999 transitions. [2023-11-06 21:05:30,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 21:05:30,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:30,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:05:30,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 21:05:30,403 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 21:05:30,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:30,404 INFO L85 PathProgramCache]: Analyzing trace with hash -393672455, now seen corresponding path program 1 times [2023-11-06 21:05:30,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 21:05:30,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434464972] [2023-11-06 21:05:30,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:30,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:05:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:05:30,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:05:30,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 21:05:30,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434464972] [2023-11-06 21:05:30,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434464972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:05:30,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:05:30,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:05:30,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114580861] [2023-11-06 21:05:30,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:05:30,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:05:30,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 21:05:30,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:05:30,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:05:30,598 INFO L87 Difference]: Start difference. First operand 350 states and 999 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) [2023-11-06 21:05:30,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:05:30,747 INFO L93 Difference]: Finished difference Result 374 states and 1033 transitions. [2023-11-06 21:05:30,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:05:30,747 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 [2023-11-06 21:05:30,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:05:30,751 INFO L225 Difference]: With dead ends: 374 [2023-11-06 21:05:30,751 INFO L226 Difference]: Without dead ends: 326 [2023-11-06 21:05:30,752 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 [2023-11-06 21:05:30,753 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 36 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:05:30,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 5 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:05:30,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2023-11-06 21:05:30,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2023-11-06 21:05:30,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 325 states have (on average 2.8215384615384616) internal successors, (917), 325 states have internal predecessors, (917), 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) [2023-11-06 21:05:30,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 917 transitions. [2023-11-06 21:05:30,769 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 917 transitions. Word has length 13 [2023-11-06 21:05:30,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:05:30,770 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 917 transitions. [2023-11-06 21:05:30,770 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) [2023-11-06 21:05:30,770 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 917 transitions. [2023-11-06 21:05:30,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 21:05:30,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:30,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:05:30,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 21:05:30,772 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 21:05:30,773 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:30,773 INFO L85 PathProgramCache]: Analyzing trace with hash 601152256, now seen corresponding path program 1 times [2023-11-06 21:05:30,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 21:05:30,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444896945] [2023-11-06 21:05:30,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:30,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:05:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:05:30,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:05:30,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 21:05:30,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444896945] [2023-11-06 21:05:30,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444896945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:05:30,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:05:30,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:05:30,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281559272] [2023-11-06 21:05:30,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:05:30,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:05:30,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 21:05:30,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:05:30,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:05:30,926 INFO L87 Difference]: Start difference. First operand 326 states and 917 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:05:31,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:05:31,046 INFO L93 Difference]: Finished difference Result 344 states and 941 transitions. [2023-11-06 21:05:31,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:05:31,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-06 21:05:31,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:05:31,050 INFO L225 Difference]: With dead ends: 344 [2023-11-06 21:05:31,050 INFO L226 Difference]: Without dead ends: 308 [2023-11-06 21:05:31,050 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 [2023-11-06 21:05:31,051 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 16 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:05:31,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 6 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:05:31,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-11-06 21:05:31,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2023-11-06 21:05:31,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 307 states have (on average 2.791530944625407) internal successors, (857), 307 states have internal predecessors, (857), 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) [2023-11-06 21:05:31,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 857 transitions. [2023-11-06 21:05:31,065 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 857 transitions. Word has length 14 [2023-11-06 21:05:31,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:05:31,066 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 857 transitions. [2023-11-06 21:05:31,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:05:31,066 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 857 transitions. [2023-11-06 21:05:31,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-06 21:05:31,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:31,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:05:31,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 21:05:31,068 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 21:05:31,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:31,069 INFO L85 PathProgramCache]: Analyzing trace with hash -763361643, now seen corresponding path program 1 times [2023-11-06 21:05:31,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 21:05:31,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69344107] [2023-11-06 21:05:31,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:31,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:05:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:05:31,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:05:31,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 21:05:31,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69344107] [2023-11-06 21:05:31,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69344107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:05:31,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:05:31,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:05:31,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912594972] [2023-11-06 21:05:31,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:05:31,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:05:31,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 21:05:31,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:05:31,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:05:31,267 INFO L87 Difference]: Start difference. First operand 308 states and 857 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-06 21:05:31,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:05:31,413 INFO L93 Difference]: Finished difference Result 488 states and 1358 transitions. [2023-11-06 21:05:31,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:05:31,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2023-11-06 21:05:31,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:05:31,417 INFO L225 Difference]: With dead ends: 488 [2023-11-06 21:05:31,417 INFO L226 Difference]: Without dead ends: 272 [2023-11-06 21:05:31,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:05:31,418 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 26 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:05:31,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 5 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:05:31,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-11-06 21:05:31,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2023-11-06 21:05:31,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 271 states have (on average 2.8081180811808117) internal successors, (761), 271 states have internal predecessors, (761), 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) [2023-11-06 21:05:31,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 761 transitions. [2023-11-06 21:05:31,435 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 761 transitions. Word has length 15 [2023-11-06 21:05:31,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:05:31,435 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 761 transitions. [2023-11-06 21:05:31,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-06 21:05:31,436 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 761 transitions. [2023-11-06 21:05:31,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-06 21:05:31,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:31,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:05:31,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 21:05:31,438 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 21:05:31,439 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:31,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1835797579, now seen corresponding path program 2 times [2023-11-06 21:05:31,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 21:05:31,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986951655] [2023-11-06 21:05:31,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:31,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:05:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:05:31,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:05:31,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 21:05:31,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986951655] [2023-11-06 21:05:31,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986951655] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:05:31,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:05:31,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:05:31,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133302936] [2023-11-06 21:05:31,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:05:31,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:05:31,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 21:05:31,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:05:31,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:05:31,652 INFO L87 Difference]: Start difference. First operand 272 states and 761 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2023-11-06 21:05:31,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:05:31,847 INFO L93 Difference]: Finished difference Result 380 states and 1058 transitions. [2023-11-06 21:05:31,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:05:31,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2023-11-06 21:05:31,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:05:31,850 INFO L225 Difference]: With dead ends: 380 [2023-11-06 21:05:31,850 INFO L226 Difference]: Without dead ends: 200 [2023-11-06 21:05:31,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:05:31,851 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 40 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 21:05:31,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 8 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 21:05:31,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-06 21:05:31,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2023-11-06 21:05:31,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 2.678391959798995) internal successors, (533), 199 states have internal predecessors, (533), 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) [2023-11-06 21:05:31,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 533 transitions. [2023-11-06 21:05:31,862 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 533 transitions. Word has length 15 [2023-11-06 21:05:31,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:05:31,863 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 533 transitions. [2023-11-06 21:05:31,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2023-11-06 21:05:31,863 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 533 transitions. [2023-11-06 21:05:31,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-06 21:05:31,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:31,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:05:31,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 21:05:31,865 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 21:05:31,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:31,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1418429191, now seen corresponding path program 3 times [2023-11-06 21:05:31,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 21:05:31,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497993029] [2023-11-06 21:05:31,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:31,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:05:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:05:32,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:05:32,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 21:05:32,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497993029] [2023-11-06 21:05:32,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497993029] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:05:32,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:05:32,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:05:32,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580737176] [2023-11-06 21:05:32,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:05:32,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:05:32,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 21:05:32,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:05:32,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:05:32,037 INFO L87 Difference]: Start difference. First operand 200 states and 533 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-06 21:05:32,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:05:32,148 INFO L93 Difference]: Finished difference Result 192 states and 446 transitions. [2023-11-06 21:05:32,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:05:32,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2023-11-06 21:05:32,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:05:32,151 INFO L225 Difference]: With dead ends: 192 [2023-11-06 21:05:32,151 INFO L226 Difference]: Without dead ends: 148 [2023-11-06 21:05:32,151 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 [2023-11-06 21:05:32,152 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 24 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:05:32,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 8 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:05:32,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-06 21:05:32,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-11-06 21:05:32,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 147 states have (on average 2.3197278911564627) internal successors, (341), 147 states have internal predecessors, (341), 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) [2023-11-06 21:05:32,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 341 transitions. [2023-11-06 21:05:32,160 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 341 transitions. Word has length 15 [2023-11-06 21:05:32,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:05:32,160 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 341 transitions. [2023-11-06 21:05:32,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-06 21:05:32,161 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 341 transitions. [2023-11-06 21:05:32,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-06 21:05:32,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:32,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:05:32,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 21:05:32,163 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 21:05:32,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:32,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1586984654, now seen corresponding path program 1 times [2023-11-06 21:05:32,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 21:05:32,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151460460] [2023-11-06 21:05:32,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:32,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:05:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:05:32,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:05:32,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 21:05:32,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151460460] [2023-11-06 21:05:32,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151460460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:05:32,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:05:32,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:05:32,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815652943] [2023-11-06 21:05:32,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:05:32,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:05:32,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 21:05:32,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:05:32,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:05:32,373 INFO L87 Difference]: Start difference. First operand 148 states and 341 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-11-06 21:05:32,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:05:32,497 INFO L93 Difference]: Finished difference Result 114 states and 224 transitions. [2023-11-06 21:05:32,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:05:32,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2023-11-06 21:05:32,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:05:32,499 INFO L225 Difference]: With dead ends: 114 [2023-11-06 21:05:32,499 INFO L226 Difference]: Without dead ends: 88 [2023-11-06 21:05:32,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:05:32,500 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 29 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:05:32,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 7 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:05:32,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-06 21:05:32,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-06 21:05:32,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.896551724137931) internal successors, (165), 87 states have internal predecessors, (165), 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) [2023-11-06 21:05:32,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 165 transitions. [2023-11-06 21:05:32,504 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 165 transitions. Word has length 17 [2023-11-06 21:05:32,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:05:32,505 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 165 transitions. [2023-11-06 21:05:32,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-11-06 21:05:32,505 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 165 transitions. [2023-11-06 21:05:32,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 21:05:32,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:32,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:05:32,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 21:05:32,506 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 21:05:32,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:32,507 INFO L85 PathProgramCache]: Analyzing trace with hash 241587925, now seen corresponding path program 1 times [2023-11-06 21:05:32,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 21:05:32,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552879346] [2023-11-06 21:05:32,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:32,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:05:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:05:32,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:05:32,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 21:05:32,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552879346] [2023-11-06 21:05:32,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552879346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:05:32,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:05:32,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:05:32,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148672093] [2023-11-06 21:05:32,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:05:32,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:05:32,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 21:05:32,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:05:32,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:05:32,759 INFO L87 Difference]: Start difference. First operand 88 states and 165 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 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) [2023-11-06 21:05:32,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:05:32,890 INFO L93 Difference]: Finished difference Result 70 states and 127 transitions. [2023-11-06 21:05:32,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:05:32,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 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) Word has length 19 [2023-11-06 21:05:32,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:05:32,893 INFO L225 Difference]: With dead ends: 70 [2023-11-06 21:05:32,894 INFO L226 Difference]: Without dead ends: 62 [2023-11-06 21:05:32,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:05:32,896 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 29 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:05:32,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 5 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:05:32,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-06 21:05:32,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-06 21:05:32,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.8524590163934427) internal successors, (113), 61 states have internal predecessors, (113), 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) [2023-11-06 21:05:32,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 113 transitions. [2023-11-06 21:05:32,900 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 113 transitions. Word has length 19 [2023-11-06 21:05:32,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:05:32,900 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 113 transitions. [2023-11-06 21:05:32,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 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) [2023-11-06 21:05:32,901 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 113 transitions. [2023-11-06 21:05:32,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-06 21:05:32,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:32,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:05:32,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 21:05:32,902 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 21:05:32,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:32,907 INFO L85 PathProgramCache]: Analyzing trace with hash -298536724, now seen corresponding path program 1 times [2023-11-06 21:05:32,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 21:05:32,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601383235] [2023-11-06 21:05:32,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:32,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:05:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:05:33,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:05:33,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 21:05:33,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601383235] [2023-11-06 21:05:33,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601383235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:05:33,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:05:33,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:05:33,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901601789] [2023-11-06 21:05:33,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:05:33,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 21:05:33,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 21:05:33,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 21:05:33,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:05:33,855 INFO L87 Difference]: Start difference. First operand 62 states and 113 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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) [2023-11-06 21:05:34,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:05:34,073 INFO L93 Difference]: Finished difference Result 77 states and 136 transitions. [2023-11-06 21:05:34,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 21:05:34,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 21 [2023-11-06 21:05:34,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:05:34,074 INFO L225 Difference]: With dead ends: 77 [2023-11-06 21:05:34,074 INFO L226 Difference]: Without dead ends: 42 [2023-11-06 21:05:34,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-06 21:05:34,075 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 32 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 21:05:34,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 13 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 21:05:34,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-06 21:05:34,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-06 21:05:34,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.5853658536585367) internal successors, (65), 41 states have internal predecessors, (65), 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) [2023-11-06 21:05:34,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 65 transitions. [2023-11-06 21:05:34,078 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 65 transitions. Word has length 21 [2023-11-06 21:05:34,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:05:34,078 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 65 transitions. [2023-11-06 21:05:34,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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) [2023-11-06 21:05:34,078 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 65 transitions. [2023-11-06 21:05:34,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-06 21:05:34,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:05:34,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:05:34,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 21:05:34,079 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 21:05:34,079 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:05:34,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1001247026, now seen corresponding path program 2 times [2023-11-06 21:05:34,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 21:05:34,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48829011] [2023-11-06 21:05:34,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:05:34,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:05:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:05:34,163 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:05:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:05:34,265 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-06 21:05:34,265 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 21:05:34,267 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2023-11-06 21:05:34,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2023-11-06 21:05:34,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2023-11-06 21:05:34,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2023-11-06 21:05:34,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2023-11-06 21:05:34,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2023-11-06 21:05:34,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2023-11-06 21:05:34,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2023-11-06 21:05:34,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2023-11-06 21:05:34,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2023-11-06 21:05:34,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2023-11-06 21:05:34,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2023-11-06 21:05:34,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2023-11-06 21:05:34,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 21:05:34,274 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:05:34,281 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 21:05:34,281 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:05:34,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:05:34 BasicIcfg [2023-11-06 21:05:34,393 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:05:34,394 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:05:34,394 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:05:34,394 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:05:34,395 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:05:21" (3/4) ... [2023-11-06 21:05:34,397 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 21:05:34,398 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:05:34,399 INFO L158 Benchmark]: Toolchain (without parser) took 14404.87ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 129.0MB in the beginning and 157.8MB in the end (delta: -28.8MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. [2023-11-06 21:05:34,399 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:05:34,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 715.04ms. Allocated memory is still 176.2MB. Free memory was 128.9MB in the beginning and 105.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 21:05:34,400 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.17ms. Allocated memory is still 176.2MB. Free memory was 105.8MB in the beginning and 103.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:05:34,401 INFO L158 Benchmark]: Boogie Preprocessor took 84.28ms. Allocated memory is still 176.2MB. Free memory was 103.1MB in the beginning and 101.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:05:34,402 INFO L158 Benchmark]: RCFGBuilder took 873.75ms. Allocated memory is still 176.2MB. Free memory was 101.0MB in the beginning and 123.7MB in the end (delta: -22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 21:05:34,404 INFO L158 Benchmark]: TraceAbstraction took 12620.00ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 122.8MB in the beginning and 157.8MB in the end (delta: -35.0MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2023-11-06 21:05:34,404 INFO L158 Benchmark]: Witness Printer took 4.60ms. Allocated memory is still 255.9MB. Free memory is still 157.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:05:34,406 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 715.04ms. Allocated memory is still 176.2MB. Free memory was 128.9MB in the beginning and 105.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.17ms. Allocated memory is still 176.2MB. Free memory was 105.8MB in the beginning and 103.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.28ms. Allocated memory is still 176.2MB. Free memory was 103.1MB in the beginning and 101.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 873.75ms. Allocated memory is still 176.2MB. Free memory was 101.0MB in the beginning and 123.7MB in the end (delta: -22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 12620.00ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 122.8MB in the beginning and 157.8MB in the end (delta: -35.0MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. * Witness Printer took 4.60ms. Allocated memory is still 255.9MB. Free memory is still 157.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7s, 132 PlacesBefore, 43 PlacesAfterwards, 125 TransitionsBefore, 34 TransitionsAfterwards, 2374 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 69 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 131 TotalNumberOfCompositions, 5918 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2811, independent: 2655, independent conditional: 0, independent unconditional: 2655, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1613, independent: 1577, independent conditional: 0, independent unconditional: 1577, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1613, independent: 1561, independent conditional: 0, independent unconditional: 1561, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 52, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 330, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 296, dependent conditional: 0, dependent unconditional: 296, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2811, independent: 1078, independent conditional: 0, independent unconditional: 1078, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 1613, unknown conditional: 0, unknown unconditional: 1613] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 83, Positive conditional cache size: 0, Positive unconditional cache size: 83, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, 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 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p0_EBX = 0; [L716] 0 int __unbuffered_p2_EAX = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L721] 0 _Bool x$flush_delayed; [L722] 0 int x$mem_tmp; [L723] 0 _Bool x$r_buff0_thd0; [L724] 0 _Bool x$r_buff0_thd1; [L725] 0 _Bool x$r_buff0_thd2; [L726] 0 _Bool x$r_buff0_thd3; [L727] 0 _Bool x$r_buff1_thd0; [L728] 0 _Bool x$r_buff1_thd1; [L729] 0 _Bool x$r_buff1_thd2; [L730] 0 _Bool x$r_buff1_thd3; [L731] 0 _Bool x$read_delayed; [L732] 0 int *x$read_delayed_var; [L733] 0 int x$w_buff0; [L734] 0 _Bool x$w_buff0_used; [L735] 0 int x$w_buff1; [L736] 0 _Bool x$w_buff1_used; [L738] 0 int y = 0; [L739] 0 _Bool weak$$choice0; [L740] 0 _Bool weak$$choice2; [L829] 0 pthread_t t1828; [L830] FCALL, FORK 0 pthread_create(&t1828, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1828, ((void *)0), P0, ((void *)0))=-1, t1828={5:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L831] 0 pthread_t t1829; [L832] FCALL, FORK 0 pthread_create(&t1829, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1829, ((void *)0), P1, ((void *)0))=0, t1828={5:0}, t1829={6:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L833] 0 pthread_t t1830; [L834] FCALL, FORK 0 pthread_create(&t1830, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1830, ((void *)0), P2, ((void *)0))=1, t1828={5:0}, t1829={6:0}, t1830={3:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L772] 2 x$w_buff1 = x$w_buff0 [L773] 2 x$w_buff0 = 1 [L774] 2 x$w_buff1_used = x$w_buff0_used [L775] 2 x$w_buff0_used = (_Bool)1 [L776] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L776] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L777] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L778] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L779] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L780] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L781] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L784] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L801] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L804] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L744] 1 __unbuffered_p0_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L807] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L808] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L809] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L810] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L811] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L814] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L816] 3 return 0; [L747] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L748] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L749] 1 x$flush_delayed = weak$$choice2 [L750] 1 x$mem_tmp = x [L751] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L752] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L753] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L754] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L755] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L756] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L757] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] 1 __unbuffered_p0_EBX = x [L759] 1 x = x$flush_delayed ? x$mem_tmp : x [L760] 1 x$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L787] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L788] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L789] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L790] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L791] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L765] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L767] 1 return 0; [L794] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L796] 2 return 0; [L836] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L838] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L838] RET 0 assume_abort_if_not(main$tmp_guard0) [L840] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L841] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L842] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L843] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L844] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1828={5:0}, t1829={6:0}, t1830={3:0}, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L847] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 2 && __unbuffered_p0_EBX == 0 && __unbuffered_p2_EAX == 1) [L849] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) [L18] 0 __assert_fail ("0", "safe002_power.opt_pso.oepc_pso.opt_rmo.opt.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\read(__PRETTY_FUNCTION__)={49:50}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 827]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 830]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 150 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 12.3s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 338 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 338 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1079 IncrementalHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 37 mSDtfsCounter, 1079 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=876occurred in iteration=0, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 860 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-06 21:05:34,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --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 390a12f9f7a5c311c1cdcecac54987f654ebac30db2fbb7661324a5599d93cf6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:05:37,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:05:37,357 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 21:05:37,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:05:37,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:05:37,428 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:05:37,429 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:05:37,430 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:05:37,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:05:37,433 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:05:37,434 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:05:37,434 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:05:37,435 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:05:37,436 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:05:37,436 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:05:37,437 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:05:37,438 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:05:37,438 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:05:37,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:05:37,440 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:05:37,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:05:37,441 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:05:37,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:05:37,442 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:05:37,442 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:05:37,443 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:05:37,443 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:05:37,444 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:05:37,444 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 21:05:37,445 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 21:05:37,445 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:05:37,446 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:05:37,446 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:05:37,446 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:05:37,447 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:05:37,447 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:05:37,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:05:37,448 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:05:37,448 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:05:37,448 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 21:05:37,449 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 21:05:37,449 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:05:37,449 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:05:37,450 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 390a12f9f7a5c311c1cdcecac54987f654ebac30db2fbb7661324a5599d93cf6 [2023-11-06 21:05:37,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:05:37,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:05:37,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:05:37,896 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:05:37,897 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:05:37,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2023-11-06 21:05:41,279 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:05:41,676 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:05:41,676 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2023-11-06 21:05:41,696 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/data/8b90903b2/aa6e642f57f64312b2c3b1488e17bc38/FLAG45abc5392 [2023-11-06 21:05:41,714 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/data/8b90903b2/aa6e642f57f64312b2c3b1488e17bc38 [2023-11-06 21:05:41,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:05:41,717 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:05:41,719 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:05:41,719 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:05:41,725 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:05:41,726 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:05:41" (1/1) ... [2023-11-06 21:05:41,727 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ccdc4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:41, skipping insertion in model container [2023-11-06 21:05:41,727 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:05:41" (1/1) ... [2023-11-06 21:05:41,821 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:05:42,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:05:42,414 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:05:42,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:05:42,626 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:05:42,627 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:05:42,635 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:05:42,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:42 WrapperNode [2023-11-06 21:05:42,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:05:42,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:05:42,639 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:05:42,639 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:05:42,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:42" (1/1) ... [2023-11-06 21:05:42,684 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:42" (1/1) ... [2023-11-06 21:05:42,736 INFO L138 Inliner]: procedures = 179, calls = 55, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 134 [2023-11-06 21:05:42,737 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:05:42,739 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:05:42,739 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:05:42,739 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:05:42,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:42" (1/1) ... [2023-11-06 21:05:42,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:42" (1/1) ... [2023-11-06 21:05:42,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:42" (1/1) ... [2023-11-06 21:05:42,769 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:42" (1/1) ... [2023-11-06 21:05:42,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:42" (1/1) ... [2023-11-06 21:05:42,805 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:42" (1/1) ... [2023-11-06 21:05:42,809 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:42" (1/1) ... [2023-11-06 21:05:42,811 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:42" (1/1) ... [2023-11-06 21:05:42,816 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:05:42,817 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:05:42,817 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:05:42,817 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:05:42,818 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:42" (1/1) ... [2023-11-06 21:05:42,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:05:42,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 21:05:42,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:05:42,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d49bd38-499f-42f1-867f-8f3b03db1541/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:05:42,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:05:42,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:05:42,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:05:42,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:05:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 21:05:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 21:05:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 21:05:42,898 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 21:05:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 21:05:42,898 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 21:05:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 21:05:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 21:05:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:05:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:05:42,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:05:42,901 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:05:43,118 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:05:43,121 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:05:43,608 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:05:43,810 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:05:43,811 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:05:43,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:05:43 BoogieIcfgContainer [2023-11-06 21:05:43,814 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:05:43,817 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:05:43,818 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:05:43,821 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:05:43,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:05:41" (1/3) ... [2023-11-06 21:05:43,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0ba61a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:05:43, skipping insertion in model container [2023-11-06 21:05:43,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:05:42" (2/3) ... [2023-11-06 21:05:43,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0ba61a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:05:43, skipping insertion in model container [2023-11-06 21:05:43,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:05:43" (3/3) ... [2023-11-06 21:05:43,828 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2023-11-06 21:05:43,849 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:05:43,849 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-06 21:05:43,850 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:05:43,936 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 21:05:43,983 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 21:05:44,006 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 126 transitions, 264 flow [2023-11-06 21:05:44,012 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 126 transitions, 264 flow [2023-11-06 21:05:44,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 126 transitions, 264 flow [2023-11-06 21:05:44,085 INFO L124 PetriNetUnfolderBase]: 3/123 cut-off events. [2023-11-06 21:05:44,085 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:05:44,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 123 events. 3/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-06 21:05:44,094 INFO L119 LiptonReduction]: Number of co-enabled transitions 2374