./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fb302bfc042709458f72100356b9fd74bb7921271e539fc7dcbd801222f139c8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:02:45,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:02:46,078 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 01:02:46,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:02:46,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:02:46,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:02:46,127 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:02:46,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:02:46,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:02:46,134 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:02:46,135 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:02:46,135 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:02:46,136 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:02:46,137 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:02:46,138 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:02:46,139 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:02:46,140 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:02:46,140 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:02:46,141 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:02:46,141 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:02:46,142 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:02:46,142 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:02:46,143 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 01:02:46,143 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 01:02:46,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:02:46,145 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:02:46,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:02:46,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:02:46,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:02:46,146 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 01:02:46,147 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 01:02:46,148 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 01:02:46,148 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:02:46,148 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 01:02:46,148 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 01:02:46,148 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:02:46,149 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:02:46,149 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:02:46,149 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:02:46,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:46,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:02:46,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:02:46,150 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:02:46,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:02:46,151 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:02:46,151 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:02:46,151 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_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb302bfc042709458f72100356b9fd74bb7921271e539fc7dcbd801222f139c8 [2023-11-12 01:02:46,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:02:46,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:02:46,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:02:46,429 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:02:46,429 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:02:46,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2023-11-12 01:02:49,593 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:02:50,024 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:02:50,027 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/sv-benchmarks/c/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2023-11-12 01:02:50,052 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/data/3c36b7fd3/476fcf07aed94dcaa3347ade28701ee7/FLAG6a4a1c040 [2023-11-12 01:02:50,078 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/data/3c36b7fd3/476fcf07aed94dcaa3347ade28701ee7 [2023-11-12 01:02:50,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:02:50,087 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:02:50,091 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:50,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:02:50,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:02:50,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c6ec67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50, skipping insertion in model container [2023-11-12 01:02:50,100 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,152 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:02:50,608 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:50,627 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:02:50,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:50,727 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:02:50,728 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:02:50,737 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:02:50,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50 WrapperNode [2023-11-12 01:02:50,738 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:50,739 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:50,740 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:02:50,740 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:02:50,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,830 INFO L138 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2023-11-12 01:02:50,830 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:50,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:02:50,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:02:50,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:02:50,842 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,876 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,892 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:02:50,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:02:50,893 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:02:50,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:02:50,900 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:50,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:50,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:02:50,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:02:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 01:02:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 01:02:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:02:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:02:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:02:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 01:02:50,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 01:02:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 01:02:50,991 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 01:02:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 01:02:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 01:02:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:02:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 01:02:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:02:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:02:50,995 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 01:02:51,248 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:02:51,251 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:02:51,547 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:02:51,557 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:02:51,557 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 01:02:51,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:51 BoogieIcfgContainer [2023-11-12 01:02:51,560 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:02:51,563 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:02:51,563 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:02:51,567 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:02:51,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:02:50" (1/3) ... [2023-11-12 01:02:51,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59677fff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:51, skipping insertion in model container [2023-11-12 01:02:51,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (2/3) ... [2023-11-12 01:02:51,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59677fff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:51, skipping insertion in model container [2023-11-12 01:02:51,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:51" (3/3) ... [2023-11-12 01:02:51,571 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2023-11-12 01:02:51,592 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:02:51,592 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-12 01:02:51,592 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 01:02:51,692 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 01:02:51,730 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 01:02:51,747 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 103 transitions, 218 flow [2023-11-12 01:02:51,750 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 103 transitions, 218 flow [2023-11-12 01:02:51,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 103 transitions, 218 flow [2023-11-12 01:02:51,808 INFO L124 PetriNetUnfolderBase]: 3/100 cut-off events. [2023-11-12 01:02:51,808 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 01:02:51,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 100 events. 3/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2023-11-12 01:02:51,817 INFO L119 LiptonReduction]: Number of co-enabled transitions 1980 [2023-11-12 01:02:55,607 INFO L134 LiptonReduction]: Checked pairs total: 4411 [2023-11-12 01:02:55,608 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-11-12 01:02:55,616 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 30 transitions, 72 flow [2023-11-12 01:02:55,678 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 404 states, 396 states have (on average 3.111111111111111) internal successors, (1232), 403 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:55,699 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:02:55,716 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;@3faae0ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:02:55,716 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-12 01:02:55,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 404 states, 396 states have (on average 3.111111111111111) internal successors, (1232), 403 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:55,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-12 01:02:55,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:55,730 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-12 01:02:55,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-12 01:02:55,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:55,737 INFO L85 PathProgramCache]: Analyzing trace with hash 373, now seen corresponding path program 1 times [2023-11-12 01:02:55,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:55,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897682490] [2023-11-12 01:02:55,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:55,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:55,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 01:02:55,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:55,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897682490] [2023-11-12 01:02:55,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897682490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:55,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:55,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 01:02:55,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691093893] [2023-11-12 01:02:55,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:55,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 01:02:55,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:55,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 01:02:55,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 01:02:55,922 INFO L87 Difference]: Start difference. First operand has 404 states, 396 states have (on average 3.111111111111111) internal successors, (1232), 403 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:55,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:56,001 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2023-11-12 01:02:56,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 01:02:56,004 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2023-11-12 01:02:56,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:56,030 INFO L225 Difference]: With dead ends: 362 [2023-11-12 01:02:56,031 INFO L226 Difference]: Without dead ends: 362 [2023-11-12 01:02:56,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 01:02:56,037 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:56,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 01:02:56,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-11-12 01:02:56,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2023-11-12 01:02:56,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 360 states have (on average 2.977777777777778) internal successors, (1072), 361 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:56,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 1072 transitions. [2023-11-12 01:02:56,141 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 1072 transitions. Word has length 1 [2023-11-12 01:02:56,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:56,141 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 1072 transitions. [2023-11-12 01:02:56,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:56,142 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 1072 transitions. [2023-11-12 01:02:56,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 01:02:56,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:56,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:56,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 01:02:56,144 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-12 01:02:56,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:56,145 INFO L85 PathProgramCache]: Analyzing trace with hash -338540128, now seen corresponding path program 1 times [2023-11-12 01:02:56,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:56,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391698314] [2023-11-12 01:02:56,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:56,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:56,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 01:02:56,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:56,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391698314] [2023-11-12 01:02:56,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391698314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:56,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:56,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 01:02:56,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381839427] [2023-11-12 01:02:56,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:56,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 01:02:56,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:56,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 01:02:56,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 01:02:56,714 INFO L87 Difference]: Start difference. First operand 362 states and 1072 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:56,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:56,889 INFO L93 Difference]: Finished difference Result 748 states and 2124 transitions. [2023-11-12 01:02:56,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 01:02:56,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-12 01:02:56,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:56,898 INFO L225 Difference]: With dead ends: 748 [2023-11-12 01:02:56,898 INFO L226 Difference]: Without dead ends: 748 [2023-11-12 01:02:56,898 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 [2023-11-12 01:02:56,900 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:56,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 6 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:56,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-11-12 01:02:56,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 490. [2023-11-12 01:02:56,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 488 states have (on average 2.9795081967213113) internal successors, (1454), 489 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:56,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 1454 transitions. [2023-11-12 01:02:56,932 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 1454 transitions. Word has length 9 [2023-11-12 01:02:56,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:56,933 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 1454 transitions. [2023-11-12 01:02:56,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:56,933 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 1454 transitions. [2023-11-12 01:02:56,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 01:02:56,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:56,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:56,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 01:02:56,936 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-12 01:02:56,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:56,937 INFO L85 PathProgramCache]: Analyzing trace with hash -338540100, now seen corresponding path program 1 times [2023-11-12 01:02:56,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:56,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199304522] [2023-11-12 01:02:56,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:56,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:57,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 01:02:57,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:57,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199304522] [2023-11-12 01:02:57,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199304522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:57,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:57,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:02:57,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059777754] [2023-11-12 01:02:57,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:57,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 01:02:57,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:57,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 01:02:57,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:02:57,441 INFO L87 Difference]: Start difference. First operand 490 states and 1454 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:57,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:57,541 INFO L93 Difference]: Finished difference Result 426 states and 1198 transitions. [2023-11-12 01:02:57,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 01:02:57,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-12 01:02:57,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:57,545 INFO L225 Difference]: With dead ends: 426 [2023-11-12 01:02:57,545 INFO L226 Difference]: Without dead ends: 298 [2023-11-12 01:02:57,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:02:57,550 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 19 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:57,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 18 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:57,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-11-12 01:02:57,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2023-11-12 01:02:57,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 297 states have (on average 2.6666666666666665) internal successors, (792), 297 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:57,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 792 transitions. [2023-11-12 01:02:57,566 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 792 transitions. Word has length 9 [2023-11-12 01:02:57,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:57,566 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 792 transitions. [2023-11-12 01:02:57,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:57,567 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 792 transitions. [2023-11-12 01:02:57,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 01:02:57,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:57,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:57,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 01:02:57,575 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-12 01:02:57,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:57,577 INFO L85 PathProgramCache]: Analyzing trace with hash -752939579, now seen corresponding path program 1 times [2023-11-12 01:02:57,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:57,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814201763] [2023-11-12 01:02:57,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:57,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:57,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 01:02:57,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:57,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814201763] [2023-11-12 01:02:57,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814201763] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:57,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:57,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 01:02:57,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758401285] [2023-11-12 01:02:57,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:57,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 01:02:57,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:57,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 01:02:57,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 01:02:57,765 INFO L87 Difference]: Start difference. First operand 298 states and 792 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) [2023-11-12 01:02:57,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:57,840 INFO L93 Difference]: Finished difference Result 298 states and 756 transitions. [2023-11-12 01:02:57,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 01:02:57,840 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 [2023-11-12 01:02:57,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:57,842 INFO L225 Difference]: With dead ends: 298 [2023-11-12 01:02:57,843 INFO L226 Difference]: Without dead ends: 198 [2023-11-12 01:02:57,844 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 [2023-11-12 01:02:57,848 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 20 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:57,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 13 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:57,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-12 01:02:57,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 182. [2023-11-12 01:02:57,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.585635359116022) internal successors, (468), 181 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:57,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 468 transitions. [2023-11-12 01:02:57,861 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 468 transitions. Word has length 10 [2023-11-12 01:02:57,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:57,861 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 468 transitions. [2023-11-12 01:02:57,862 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) [2023-11-12 01:02:57,862 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 468 transitions. [2023-11-12 01:02:57,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 01:02:57,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:57,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:57,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 01:02:57,865 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-12 01:02:57,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:57,867 INFO L85 PathProgramCache]: Analyzing trace with hash 2006612932, now seen corresponding path program 1 times [2023-11-12 01:02:57,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:57,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610295282] [2023-11-12 01:02:57,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:57,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:58,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 01:02:58,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:58,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610295282] [2023-11-12 01:02:58,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610295282] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:58,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:58,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 01:02:58,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273835036] [2023-11-12 01:02:58,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:58,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:02:58,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:58,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:02:58,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:02:58,038 INFO L87 Difference]: Start difference. First operand 182 states and 468 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:58,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:58,078 INFO L93 Difference]: Finished difference Result 146 states and 331 transitions. [2023-11-12 01:02:58,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:02:58,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-12 01:02:58,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:58,081 INFO L225 Difference]: With dead ends: 146 [2023-11-12 01:02:58,081 INFO L226 Difference]: Without dead ends: 146 [2023-11-12 01:02:58,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:02:58,082 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:58,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 01:02:58,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-12 01:02:58,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2023-11-12 01:02:58,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 2.282758620689655) internal successors, (331), 145 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:58,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 331 transitions. [2023-11-12 01:02:58,093 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 331 transitions. Word has length 12 [2023-11-12 01:02:58,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:58,094 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 331 transitions. [2023-11-12 01:02:58,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:58,094 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 331 transitions. [2023-11-12 01:02:58,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 01:02:58,096 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:58,096 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:58,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 01:02:58,099 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-12 01:02:58,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:58,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2112385245, now seen corresponding path program 1 times [2023-11-12 01:02:58,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:58,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952502517] [2023-11-12 01:02:58,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:58,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:58,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 01:02:58,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:58,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952502517] [2023-11-12 01:02:58,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952502517] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:58,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:58,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:02:58,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191566007] [2023-11-12 01:02:58,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:58,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 01:02:58,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:58,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 01:02:58,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 01:02:58,300 INFO L87 Difference]: Start difference. First operand 146 states and 331 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 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) [2023-11-12 01:02:58,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:58,362 INFO L93 Difference]: Finished difference Result 101 states and 200 transitions. [2023-11-12 01:02:58,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 01:02:58,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 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 [2023-11-12 01:02:58,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:58,364 INFO L225 Difference]: With dead ends: 101 [2023-11-12 01:02:58,364 INFO L226 Difference]: Without dead ends: 101 [2023-11-12 01:02:58,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 01:02:58,366 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:58,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:58,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-12 01:02:58,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2023-11-12 01:02:58,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.9791666666666667) internal successors, (190), 96 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:58,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 190 transitions. [2023-11-12 01:02:58,372 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 190 transitions. Word has length 13 [2023-11-12 01:02:58,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:58,373 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 190 transitions. [2023-11-12 01:02:58,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 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) [2023-11-12 01:02:58,373 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 190 transitions. [2023-11-12 01:02:58,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 01:02:58,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:58,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:58,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 01:02:58,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-12 01:02:58,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:58,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1179243298, now seen corresponding path program 1 times [2023-11-12 01:02:58,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:58,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039537861] [2023-11-12 01:02:58,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:58,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:58,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 01:02:58,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:58,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039537861] [2023-11-12 01:02:58,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039537861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:58,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:58,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 01:02:58,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661938455] [2023-11-12 01:02:58,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:58,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 01:02:58,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:58,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 01:02:58,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:02:58,566 INFO L87 Difference]: Start difference. First operand 97 states and 190 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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) [2023-11-12 01:02:58,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:58,688 INFO L93 Difference]: Finished difference Result 154 states and 288 transitions. [2023-11-12 01:02:58,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 01:02:58,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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 [2023-11-12 01:02:58,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:58,690 INFO L225 Difference]: With dead ends: 154 [2023-11-12 01:02:58,690 INFO L226 Difference]: Without dead ends: 93 [2023-11-12 01:02:58,690 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 [2023-11-12 01:02:58,691 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 22 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:58,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:58,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-12 01:02:58,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 83. [2023-11-12 01:02:58,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.8658536585365855) internal successors, (153), 82 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:58,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 153 transitions. [2023-11-12 01:02:58,696 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 153 transitions. Word has length 15 [2023-11-12 01:02:58,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:58,696 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 153 transitions. [2023-11-12 01:02:58,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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) [2023-11-12 01:02:58,697 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 153 transitions. [2023-11-12 01:02:58,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 01:02:58,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:58,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:58,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 01:02:58,698 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-12 01:02:58,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:58,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1619088730, now seen corresponding path program 2 times [2023-11-12 01:02:58,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:58,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935029508] [2023-11-12 01:02:58,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:58,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:58,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 01:02:58,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:58,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935029508] [2023-11-12 01:02:58,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935029508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:58,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:58,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 01:02:58,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935169969] [2023-11-12 01:02:58,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:58,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 01:02:58,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:58,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 01:02:58,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:02:58,830 INFO L87 Difference]: Start difference. First operand 83 states and 153 transitions. Second operand has 5 states, 5 states have (on average 3.0) 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) [2023-11-12 01:02:58,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:58,885 INFO L93 Difference]: Finished difference Result 63 states and 114 transitions. [2023-11-12 01:02:58,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 01:02:58,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) 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 [2023-11-12 01:02:58,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:58,886 INFO L225 Difference]: With dead ends: 63 [2023-11-12 01:02:58,886 INFO L226 Difference]: Without dead ends: 55 [2023-11-12 01:02:58,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:02:58,888 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 19 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:58,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 7 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:58,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-12 01:02:58,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2023-11-12 01:02:58,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.8) internal successors, (90), 50 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:58,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 90 transitions. [2023-11-12 01:02:58,891 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 90 transitions. Word has length 15 [2023-11-12 01:02:58,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:58,892 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 90 transitions. [2023-11-12 01:02:58,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) 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) [2023-11-12 01:02:58,892 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 90 transitions. [2023-11-12 01:02:58,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 01:02:58,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:58,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:58,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 01:02:58,894 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-12 01:02:58,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:58,894 INFO L85 PathProgramCache]: Analyzing trace with hash 83231947, now seen corresponding path program 1 times [2023-11-12 01:02:58,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:58,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619850801] [2023-11-12 01:02:58,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:58,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:59,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 01:02:59,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:59,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619850801] [2023-11-12 01:02:59,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619850801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:59,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:59,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 01:02:59,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394150849] [2023-11-12 01:02:59,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:59,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 01:02:59,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:59,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 01:02:59,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:02:59,051 INFO L87 Difference]: Start difference. First operand 51 states and 90 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:59,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:59,127 INFO L93 Difference]: Finished difference Result 50 states and 89 transitions. [2023-11-12 01:02:59,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 01:02:59,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-12 01:02:59,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:59,128 INFO L225 Difference]: With dead ends: 50 [2023-11-12 01:02:59,129 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 01:02:59,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 01:02:59,130 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:59,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:59,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 01:02:59,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 01:02:59,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:59,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 01:02:59,132 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2023-11-12 01:02:59,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:59,132 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 01:02:59,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:02:59,132 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 01:02:59,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 01:02:59,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-11-12 01:02:59,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-11-12 01:02:59,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-11-12 01:02:59,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-11-12 01:02:59,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-11-12 01:02:59,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-11-12 01:02:59,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2023-11-12 01:02:59,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2023-11-12 01:02:59,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-11-12 01:02:59,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-11-12 01:02:59,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-11-12 01:02:59,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 01:02:59,141 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:59,144 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 01:02:59,144 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 01:02:59,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 01:02:59 BasicIcfg [2023-11-12 01:02:59,147 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 01:02:59,148 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 01:02:59,148 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 01:02:59,148 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 01:02:59,149 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:51" (3/4) ... [2023-11-12 01:02:59,151 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 01:02:59,156 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 01:02:59,156 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 01:02:59,156 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-12 01:02:59,164 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-12 01:02:59,164 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 01:02:59,165 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 01:02:59,165 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 01:02:59,259 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 01:02:59,259 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 01:02:59,259 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 01:02:59,260 INFO L158 Benchmark]: Toolchain (without parser) took 9172.88ms. Allocated memory was 146.8MB in the beginning and 243.3MB in the end (delta: 96.5MB). Free memory was 99.0MB in the beginning and 86.7MB in the end (delta: 12.3MB). Peak memory consumption was 109.9MB. Max. memory is 16.1GB. [2023-11-12 01:02:59,260 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 102.8MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:02:59,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 646.95ms. Allocated memory is still 146.8MB. Free memory was 98.6MB in the beginning and 78.3MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 01:02:59,261 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.16ms. Allocated memory is still 146.8MB. Free memory was 78.3MB in the beginning and 76.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 01:02:59,261 INFO L158 Benchmark]: Boogie Preprocessor took 61.28ms. Allocated memory is still 146.8MB. Free memory was 76.2MB in the beginning and 74.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 01:02:59,262 INFO L158 Benchmark]: RCFGBuilder took 667.12ms. Allocated memory was 146.8MB in the beginning and 201.3MB in the end (delta: 54.5MB). Free memory was 74.6MB in the beginning and 163.6MB in the end (delta: -89.0MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2023-11-12 01:02:59,263 INFO L158 Benchmark]: TraceAbstraction took 7584.73ms. Allocated memory was 201.3MB in the beginning and 243.3MB in the end (delta: 41.9MB). Free memory was 162.6MB in the beginning and 91.9MB in the end (delta: 70.7MB). Peak memory consumption was 113.5MB. Max. memory is 16.1GB. [2023-11-12 01:02:59,263 INFO L158 Benchmark]: Witness Printer took 111.16ms. Allocated memory is still 243.3MB. Free memory was 90.9MB in the beginning and 86.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 01:02:59,266 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 102.8MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 646.95ms. Allocated memory is still 146.8MB. Free memory was 98.6MB in the beginning and 78.3MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.16ms. Allocated memory is still 146.8MB. Free memory was 78.3MB in the beginning and 76.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.28ms. Allocated memory is still 146.8MB. Free memory was 76.2MB in the beginning and 74.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 667.12ms. Allocated memory was 146.8MB in the beginning and 201.3MB in the end (delta: 54.5MB). Free memory was 74.6MB in the beginning and 163.6MB in the end (delta: -89.0MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * TraceAbstraction took 7584.73ms. Allocated memory was 201.3MB in the beginning and 243.3MB in the end (delta: 41.9MB). Free memory was 162.6MB in the beginning and 91.9MB in the end (delta: 70.7MB). Peak memory consumption was 113.5MB. Max. memory is 16.1GB. * Witness Printer took 111.16ms. Allocated memory is still 243.3MB. Free memory was 90.9MB in the beginning and 86.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 110 PlacesBefore, 39 PlacesAfterwards, 103 TransitionsBefore, 30 TransitionsAfterwards, 1980 CoEnabledTransitionPairs, 7 FixpointIterations, 26 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 109 TotalNumberOfCompositions, 4411 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2440, independent: 2332, independent conditional: 0, independent unconditional: 2332, dependent: 108, dependent conditional: 0, dependent unconditional: 108, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1410, independent: 1378, independent conditional: 0, independent unconditional: 1378, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1410, independent: 1366, independent conditional: 0, independent unconditional: 1366, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 144, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2440, independent: 954, independent conditional: 0, independent unconditional: 954, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 1410, unknown conditional: 0, unknown unconditional: 1410] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 782]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 125 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 441 IncrementalHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 32 mSDtfsCounter, 441 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=490occurred in iteration=2, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 292 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 557 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 01:02:59,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f833c0a2-2765-4008-a285-347a9f1ca221/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE