./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe012_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe012_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68631ae83b11f8573706de51209bda75798bffba6e8c7fbfd0f4547966fed62e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:57:06,856 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:57:06,989 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 04:57:06,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:57:07,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:57:07,039 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:57:07,040 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:57:07,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:57:07,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:57:07,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:57:07,047 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:57:07,048 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:57:07,049 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:57:07,051 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:57:07,051 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:57:07,052 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:57:07,052 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:57:07,053 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:57:07,053 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:57:07,054 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:57:07,054 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:57:07,055 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:57:07,056 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:57:07,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:57:07,057 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:57:07,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:57:07,058 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:57:07,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:57:07,059 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:57:07,059 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:57:07,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:57:07,061 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:57:07,061 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:57:07,062 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:57:07,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:57:07,062 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:57:07,063 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:57:07,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:57:07,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:07,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:57:07,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:57:07,064 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:57:07,065 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:57:07,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:57:07,066 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:57:07,066 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:57:07,066 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:57:07,067 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_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68631ae83b11f8573706de51209bda75798bffba6e8c7fbfd0f4547966fed62e [2023-11-19 04:57:07,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:57:07,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:57:07,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:57:07,421 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:57:07,421 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:57:07,422 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-wmm/safe012_rmo.oepc.i [2023-11-19 04:57:10,564 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:57:10,938 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:57:10,939 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/sv-benchmarks/c/pthread-wmm/safe012_rmo.oepc.i [2023-11-19 04:57:10,958 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/data/1c12c6a53/263b85b51a1e4b6497c0f2c040829bc9/FLAG4899bf79f [2023-11-19 04:57:10,974 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/data/1c12c6a53/263b85b51a1e4b6497c0f2c040829bc9 [2023-11-19 04:57:10,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:57:10,979 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:57:10,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:10,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:57:10,991 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:57:10,992 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:10" (1/1) ... [2023-11-19 04:57:10,993 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ceab80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:10, skipping insertion in model container [2023-11-19 04:57:10,993 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:10" (1/1) ... [2023-11-19 04:57:11,050 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:57:11,649 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:11,664 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:57:11,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:11,820 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:11,820 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:11,829 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:57:11,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:11 WrapperNode [2023-11-19 04:57:11,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:11,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:11,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:57:11,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:57:11,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:11" (1/1) ... [2023-11-19 04:57:11,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:11" (1/1) ... [2023-11-19 04:57:11,934 INFO L138 Inliner]: procedures = 176, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 140 [2023-11-19 04:57:11,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:11,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:57:11,936 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:57:11,936 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:57:11,954 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:11" (1/1) ... [2023-11-19 04:57:11,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:11" (1/1) ... [2023-11-19 04:57:11,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:11" (1/1) ... [2023-11-19 04:57:11,973 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:11" (1/1) ... [2023-11-19 04:57:11,989 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:11" (1/1) ... [2023-11-19 04:57:12,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:11" (1/1) ... [2023-11-19 04:57:12,007 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:11" (1/1) ... [2023-11-19 04:57:12,012 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:11" (1/1) ... [2023-11-19 04:57:12,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:57:12,028 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:57:12,029 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:57:12,029 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:57:12,030 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:11" (1/1) ... [2023-11-19 04:57:12,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:12,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:57:12,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:57:12,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:57:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:57:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:57:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:57:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:57:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:57:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:57:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 04:57:12,134 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 04:57:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 04:57:12,134 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 04:57:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 04:57:12,135 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 04:57:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:57:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:57:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:57:12,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:57:12,138 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:57:12,355 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:57:12,357 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:57:12,750 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:57:13,132 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:57:13,132 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:57:13,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:13 BoogieIcfgContainer [2023-11-19 04:57:13,140 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:57:13,142 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:57:13,143 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:57:13,147 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:57:13,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:57:10" (1/3) ... [2023-11-19 04:57:13,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff574eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:13, skipping insertion in model container [2023-11-19 04:57:13,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:11" (2/3) ... [2023-11-19 04:57:13,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff574eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:13, skipping insertion in model container [2023-11-19 04:57:13,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:13" (3/3) ... [2023-11-19 04:57:13,152 INFO L112 eAbstractionObserver]: Analyzing ICFG safe012_rmo.oepc.i [2023-11-19 04:57:13,162 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 04:57:13,172 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:57:13,172 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 04:57:13,172 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:57:13,263 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 04:57:13,318 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:57:13,345 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 140 transitions, 292 flow [2023-11-19 04:57:13,350 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 140 transitions, 292 flow [2023-11-19 04:57:13,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 140 transitions, 292 flow [2023-11-19 04:57:13,455 INFO L124 PetriNetUnfolderBase]: 3/137 cut-off events. [2023-11-19 04:57:13,455 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 04:57:13,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 137 events. 3/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2023-11-19 04:57:13,466 INFO L119 LiptonReduction]: Number of co-enabled transitions 2862 [2023-11-19 04:57:24,417 INFO L134 LiptonReduction]: Checked pairs total: 8343 [2023-11-19 04:57:24,417 INFO L136 LiptonReduction]: Total number of compositions: 135 [2023-11-19 04:57:24,429 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 29 transitions, 70 flow [2023-11-19 04:57:24,555 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1090 states, 1064 states have (on average 3.526315789473684) internal successors, (3752), 1089 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:24,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:57:24,589 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ca0ca66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:57:24,589 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-19 04:57:24,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 1090 states, 1064 states have (on average 3.526315789473684) internal successors, (3752), 1089 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:24,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:57:24,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:24,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 04:57:24,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 04:57:24,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:24,615 INFO L85 PathProgramCache]: Analyzing trace with hash 22031951, now seen corresponding path program 1 times [2023-11-19 04:57:24,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:24,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651745338] [2023-11-19 04:57:24,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:24,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:25,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:25,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:25,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651745338] [2023-11-19 04:57:25,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651745338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:25,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:25,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 04:57:25,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796560154] [2023-11-19 04:57:25,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:25,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:57:25,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:25,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:57:25,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:57:25,169 INFO L87 Difference]: Start difference. First operand has 1090 states, 1064 states have (on average 3.526315789473684) internal successors, (3752), 1089 states have internal predecessors, (3752), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:25,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:25,340 INFO L93 Difference]: Finished difference Result 598 states and 1687 transitions. [2023-11-19 04:57:25,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:57:25,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-19 04:57:25,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:25,368 INFO L225 Difference]: With dead ends: 598 [2023-11-19 04:57:25,368 INFO L226 Difference]: Without dead ends: 598 [2023-11-19 04:57:25,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:57:25,372 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:25,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:57:25,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2023-11-19 04:57:25,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2023-11-19 04:57:25,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 580 states have (on average 2.9086206896551725) internal successors, (1687), 597 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:25,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1687 transitions. [2023-11-19 04:57:25,495 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1687 transitions. Word has length 4 [2023-11-19 04:57:25,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:25,496 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 1687 transitions. [2023-11-19 04:57:25,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:25,496 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1687 transitions. [2023-11-19 04:57:25,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:57:25,498 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:25,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:25,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:57:25,499 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 04:57:25,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:25,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1662267477, now seen corresponding path program 1 times [2023-11-19 04:57:25,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:25,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208819588] [2023-11-19 04:57:25,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:25,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:25,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:25,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:25,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208819588] [2023-11-19 04:57:25,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208819588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:25,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:25,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:57:25,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897029032] [2023-11-19 04:57:25,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:25,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:57:25,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:25,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:57:25,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:57:25,750 INFO L87 Difference]: Start difference. First operand 598 states and 1687 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) [2023-11-19 04:57:25,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:25,884 INFO L93 Difference]: Finished difference Result 466 states and 1339 transitions. [2023-11-19 04:57:25,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:57:25,885 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 [2023-11-19 04:57:25,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:25,892 INFO L225 Difference]: With dead ends: 466 [2023-11-19 04:57:25,893 INFO L226 Difference]: Without dead ends: 466 [2023-11-19 04:57:25,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:57:25,895 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 26 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:25,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 4 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:57:25,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-11-19 04:57:25,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2023-11-19 04:57:25,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 460 states have (on average 2.9108695652173915) internal successors, (1339), 465 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:25,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 1339 transitions. [2023-11-19 04:57:25,943 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 1339 transitions. Word has length 9 [2023-11-19 04:57:25,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:25,944 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 1339 transitions. [2023-11-19 04:57:25,944 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) [2023-11-19 04:57:25,946 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 1339 transitions. [2023-11-19 04:57:25,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:57:25,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:25,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:25,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:57:25,953 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 04:57:25,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:25,954 INFO L85 PathProgramCache]: Analyzing trace with hash 9313395, now seen corresponding path program 1 times [2023-11-19 04:57:25,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:25,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255220606] [2023-11-19 04:57:25,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:25,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:26,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:26,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:26,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255220606] [2023-11-19 04:57:26,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255220606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:26,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:26,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:57:26,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377351251] [2023-11-19 04:57:26,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:26,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:57:26,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:26,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:57:26,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:57:26,165 INFO L87 Difference]: Start difference. First operand 466 states and 1339 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) [2023-11-19 04:57:26,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:26,300 INFO L93 Difference]: Finished difference Result 370 states and 1078 transitions. [2023-11-19 04:57:26,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:57:26,301 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 [2023-11-19 04:57:26,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:26,305 INFO L225 Difference]: With dead ends: 370 [2023-11-19 04:57:26,305 INFO L226 Difference]: Without dead ends: 370 [2023-11-19 04:57:26,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:57:26,307 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 22 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:26,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 3 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:57:26,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-11-19 04:57:26,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2023-11-19 04:57:26,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 367 states have (on average 2.9373297002724796) internal successors, (1078), 369 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:26,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1078 transitions. [2023-11-19 04:57:26,326 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1078 transitions. Word has length 10 [2023-11-19 04:57:26,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:26,326 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 1078 transitions. [2023-11-19 04:57:26,327 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) [2023-11-19 04:57:26,327 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1078 transitions. [2023-11-19 04:57:26,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:57:26,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:26,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:26,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:57:26,332 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 04:57:26,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:26,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1045401044, now seen corresponding path program 1 times [2023-11-19 04:57:26,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:26,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592925157] [2023-11-19 04:57:26,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:26,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:26,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:26,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:26,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592925157] [2023-11-19 04:57:26,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592925157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:26,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:26,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:57:26,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988089109] [2023-11-19 04:57:26,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:26,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:57:26,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:26,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:57:26,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:57:26,499 INFO L87 Difference]: Start difference. First operand 370 states and 1078 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:26,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:26,620 INFO L93 Difference]: Finished difference Result 358 states and 1057 transitions. [2023-11-19 04:57:26,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:57:26,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2023-11-19 04:57:26,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:26,621 INFO L225 Difference]: With dead ends: 358 [2023-11-19 04:57:26,621 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:57:26,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:57:26,625 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 49 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:26,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:57:26,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:57:26,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:57:26,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:26,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:57:26,629 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2023-11-19 04:57:26,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:26,630 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:57:26,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:26,630 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:57:26,630 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:57:26,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-19 04:57:26,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-19 04:57:26,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-19 04:57:26,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-19 04:57:26,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-19 04:57:26,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-19 04:57:26,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-19 04:57:26,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-19 04:57:26,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-19 04:57:26,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-19 04:57:26,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-19 04:57:26,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-19 04:57:26,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-19 04:57:26,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-19 04:57:26,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-19 04:57:26,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:57:26,641 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 04:57:26,647 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 04:57:26,647 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:57:26,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:57:26 BasicIcfg [2023-11-19 04:57:26,652 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:57:26,652 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:57:26,652 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:57:26,653 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:57:26,653 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:13" (3/4) ... [2023-11-19 04:57:26,655 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:57:26,659 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 04:57:26,659 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 04:57:26,659 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 04:57:26,670 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-19 04:57:26,670 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:57:26,670 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 04:57:26,671 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:57:26,788 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:57:26,789 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:57:26,789 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:57:26,790 INFO L158 Benchmark]: Toolchain (without parser) took 15810.58ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 128.0MB in the beginning and 99.5MB in the end (delta: 28.5MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2023-11-19 04:57:26,790 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:57:26,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 850.14ms. Allocated memory is still 159.4MB. Free memory was 128.0MB in the beginning and 104.9MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 04:57:26,791 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.38ms. Allocated memory is still 159.4MB. Free memory was 104.9MB in the beginning and 102.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:57:26,792 INFO L158 Benchmark]: Boogie Preprocessor took 91.81ms. Allocated memory is still 159.4MB. Free memory was 102.6MB in the beginning and 100.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:57:26,792 INFO L158 Benchmark]: RCFGBuilder took 1111.43ms. Allocated memory is still 159.4MB. Free memory was 100.5MB in the beginning and 115.1MB in the end (delta: -14.6MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2023-11-19 04:57:26,793 INFO L158 Benchmark]: TraceAbstraction took 13509.45ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 114.2MB in the beginning and 103.7MB in the end (delta: 10.5MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2023-11-19 04:57:26,793 INFO L158 Benchmark]: Witness Printer took 136.74ms. Allocated memory is still 192.9MB. Free memory was 103.7MB in the beginning and 99.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:57:26,795 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 850.14ms. Allocated memory is still 159.4MB. Free memory was 128.0MB in the beginning and 104.9MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.38ms. Allocated memory is still 159.4MB. Free memory was 104.9MB in the beginning and 102.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.81ms. Allocated memory is still 159.4MB. Free memory was 102.6MB in the beginning and 100.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1111.43ms. Allocated memory is still 159.4MB. Free memory was 100.5MB in the beginning and 115.1MB in the end (delta: -14.6MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. * TraceAbstraction took 13509.45ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 114.2MB in the beginning and 103.7MB in the end (delta: 10.5MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. * Witness Printer took 136.74ms. Allocated memory is still 192.9MB. Free memory was 103.7MB in the beginning and 99.5MB 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: 11.1s, 147 PlacesBefore, 38 PlacesAfterwards, 140 TransitionsBefore, 29 TransitionsAfterwards, 2862 CoEnabledTransitionPairs, 8 FixpointIterations, 57 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 2 ChoiceCompositions, 135 TotalNumberOfCompositions, 8343 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4148, independent: 3870, independent conditional: 0, independent unconditional: 3870, dependent: 278, dependent conditional: 0, dependent unconditional: 278, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1983, independent: 1923, independent conditional: 0, independent unconditional: 1923, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1983, independent: 1895, independent conditional: 0, independent unconditional: 1895, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 88, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 863, independent: 77, independent conditional: 0, independent unconditional: 77, dependent: 786, dependent conditional: 0, dependent unconditional: 786, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4148, independent: 1947, independent conditional: 0, independent unconditional: 1947, dependent: 218, dependent conditional: 0, dependent unconditional: 218, unknown: 1983, unknown conditional: 0, unknown unconditional: 1983] , Statistics on independence cache: Total cache size (in pairs): 188, Positive cache size: 167, Positive conditional cache size: 0, Positive unconditional cache size: 167, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, 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: 786]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 786]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 171 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 13.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 225 IncrementalHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 5 mSDtfsCounter, 225 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1090occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 04:57:26,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1737cee-0750-4d5c-b45d-04949a4e9df4/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE