./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi006_power.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_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/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_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi006_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/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_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/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 35f6655b445fc5bf4a2ebfcafed490ee38fb52115875b19e3a717aa5f56b5e77 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:17:38,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:17:39,036 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 04:17:39,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:17:39,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:17:39,070 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:17:39,071 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:17:39,072 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:17:39,073 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:17:39,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:17:39,074 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:17:39,075 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:17:39,075 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:17:39,076 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:17:39,077 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:17:39,077 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:17:39,078 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:17:39,078 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:17:39,079 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:17:39,080 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:17:39,080 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:17:39,081 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:17:39,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:17:39,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:17:39,083 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:17:39,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:17:39,084 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:17:39,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:17:39,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:17:39,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:17:39,086 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:17:39,086 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:17:39,087 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:17:39,087 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:17:39,088 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:17:39,088 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:17:39,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:17:39,089 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:17:39,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:17:39,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:17:39,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:17:39,090 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:17:39,090 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:17:39,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:17:39,091 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:17:39,091 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:17:39,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:17:39,092 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_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35f6655b445fc5bf4a2ebfcafed490ee38fb52115875b19e3a717aa5f56b5e77 [2023-11-19 04:17:39,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:17:39,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:17:39,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:17:39,381 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:17:39,381 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:17:39,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-wmm/rfi006_power.oepc.i [2023-11-19 04:17:42,787 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:17:43,190 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:17:43,190 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/sv-benchmarks/c/pthread-wmm/rfi006_power.oepc.i [2023-11-19 04:17:43,216 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/bin/utaipan-verify-t7M7D8N6sZ/data/f2d5725a6/ebbb8dfa6a024e74ac277863f5444844/FLAGf5d1a1936 [2023-11-19 04:17:43,233 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/bin/utaipan-verify-t7M7D8N6sZ/data/f2d5725a6/ebbb8dfa6a024e74ac277863f5444844 [2023-11-19 04:17:43,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:17:43,245 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:17:43,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:17:43,247 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:17:43,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:17:43,254 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:17:43" (1/1) ... [2023-11-19 04:17:43,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436d4c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:43, skipping insertion in model container [2023-11-19 04:17:43,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:17:43" (1/1) ... [2023-11-19 04:17:43,330 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:17:43,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:17:43,720 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:17:43,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:17:43,852 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:17:43,853 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:17:43,861 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:17:43,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:43 WrapperNode [2023-11-19 04:17:43,862 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:17:43,865 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:17:43,865 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:17:43,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:17:43,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:43" (1/1) ... [2023-11-19 04:17:43,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:43" (1/1) ... [2023-11-19 04:17:43,963 INFO L138 Inliner]: procedures = 176, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 139 [2023-11-19 04:17:43,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:17:43,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:17:43,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:17:43,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:17:43,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:43" (1/1) ... [2023-11-19 04:17:43,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:43" (1/1) ... [2023-11-19 04:17:44,015 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:43" (1/1) ... [2023-11-19 04:17:44,015 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:43" (1/1) ... [2023-11-19 04:17:44,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:43" (1/1) ... [2023-11-19 04:17:44,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:43" (1/1) ... [2023-11-19 04:17:44,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:43" (1/1) ... [2023-11-19 04:17:44,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:43" (1/1) ... [2023-11-19 04:17:44,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:17:44,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:17:44,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:17:44,076 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:17:44,077 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:43" (1/1) ... [2023-11-19 04:17:44,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:17:44,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:17:44,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:17:44,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:17:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:17:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:17:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:17:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:17:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:17:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:17:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 04:17:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 04:17:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 04:17:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 04:17:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 04:17:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 04:17:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:17:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:17:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:17:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:17:44,178 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 04:17:44,387 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:17:44,389 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:17:44,891 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:17:45,411 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:17:45,411 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:17:45,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:17:45 BoogieIcfgContainer [2023-11-19 04:17:45,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:17:45,419 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:17:45,419 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:17:45,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:17:45,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:17:43" (1/3) ... [2023-11-19 04:17:45,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fced5f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:17:45, skipping insertion in model container [2023-11-19 04:17:45,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:43" (2/3) ... [2023-11-19 04:17:45,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fced5f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:17:45, skipping insertion in model container [2023-11-19 04:17:45,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:17:45" (3/3) ... [2023-11-19 04:17:45,425 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi006_power.oepc.i [2023-11-19 04:17:45,434 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 04:17:45,445 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:17:45,445 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 04:17:45,446 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:17:45,528 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 04:17:45,578 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:17:45,601 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 139 transitions, 290 flow [2023-11-19 04:17:45,606 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 139 transitions, 290 flow [2023-11-19 04:17:45,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 139 transitions, 290 flow [2023-11-19 04:17:45,672 INFO L124 PetriNetUnfolderBase]: 3/136 cut-off events. [2023-11-19 04:17:45,672 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 04:17:45,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 136 events. 3/136 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. 0/127 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2023-11-19 04:17:45,681 INFO L119 LiptonReduction]: Number of co-enabled transitions 2874 [2023-11-19 04:17:58,562 INFO L134 LiptonReduction]: Checked pairs total: 8524 [2023-11-19 04:17:58,563 INFO L136 LiptonReduction]: Total number of compositions: 133 [2023-11-19 04:17:58,579 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 29 transitions, 70 flow [2023-11-19 04:17:58,721 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1102 states, 1076 states have (on average 3.5185873605947955) internal successors, (3786), 1101 states have internal predecessors, (3786), 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 04:17:58,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:17:58,750 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;@2d8f50f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:17:58,750 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-19 04:17:58,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 1102 states, 1076 states have (on average 3.5185873605947955) internal successors, (3786), 1101 states have internal predecessors, (3786), 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 04:17:58,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:17:58,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:17:58,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 04:17:58,765 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 04:17:58,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:17:58,772 INFO L85 PathProgramCache]: Analyzing trace with hash 26868128, now seen corresponding path program 1 times [2023-11-19 04:17:58,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:17:58,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325992466] [2023-11-19 04:17:58,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:17:58,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:17:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:17:59,283 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 04:17:59,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:17:59,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325992466] [2023-11-19 04:17:59,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325992466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:17:59,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:17:59,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 04:17:59,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011596727] [2023-11-19 04:17:59,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:17:59,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:17:59,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:17:59,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:17:59,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:17:59,328 INFO L87 Difference]: Start difference. First operand has 1102 states, 1076 states have (on average 3.5185873605947955) internal successors, (3786), 1101 states have internal predecessors, (3786), 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 04:17:59,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:17:59,513 INFO L93 Difference]: Finished difference Result 498 states and 1277 transitions. [2023-11-19 04:17:59,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:17:59,519 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 04:17:59,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:17:59,541 INFO L225 Difference]: With dead ends: 498 [2023-11-19 04:17:59,542 INFO L226 Difference]: Without dead ends: 498 [2023-11-19 04:17:59,543 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 04:17:59,548 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:17:59,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:17:59,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-11-19 04:17:59,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2023-11-19 04:17:59,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 480 states have (on average 2.660416666666667) internal successors, (1277), 497 states have internal predecessors, (1277), 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 04:17:59,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 1277 transitions. [2023-11-19 04:17:59,700 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 1277 transitions. Word has length 4 [2023-11-19 04:17:59,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:17:59,701 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 1277 transitions. [2023-11-19 04:17:59,702 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 04:17:59,702 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 1277 transitions. [2023-11-19 04:17:59,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:17:59,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:17:59,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:17:59,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:17:59,711 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 04:17:59,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:17:59,713 INFO L85 PathProgramCache]: Analyzing trace with hash -138993065, now seen corresponding path program 1 times [2023-11-19 04:17:59,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:17:59,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825287652] [2023-11-19 04:17:59,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:17:59,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:17:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:17:59,926 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 04:17:59,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:17:59,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825287652] [2023-11-19 04:17:59,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825287652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:17:59,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:17:59,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:17:59,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068984709] [2023-11-19 04:17:59,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:17:59,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:17:59,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:17:59,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:17:59,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:17:59,931 INFO L87 Difference]: Start difference. First operand 498 states and 1277 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 04:18:00,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:18:00,079 INFO L93 Difference]: Finished difference Result 366 states and 929 transitions. [2023-11-19 04:18:00,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:18:00,080 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 04:18:00,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:18:00,085 INFO L225 Difference]: With dead ends: 366 [2023-11-19 04:18:00,085 INFO L226 Difference]: Without dead ends: 366 [2023-11-19 04:18:00,085 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 04:18:00,087 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:18:00,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 4 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:18:00,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-11-19 04:18:00,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2023-11-19 04:18:00,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 360 states have (on average 2.5805555555555557) internal successors, (929), 365 states have internal predecessors, (929), 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 04:18:00,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 929 transitions. [2023-11-19 04:18:00,109 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 929 transitions. Word has length 10 [2023-11-19 04:18:00,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:18:00,110 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 929 transitions. [2023-11-19 04:18:00,110 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 04:18:00,110 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 929 transitions. [2023-11-19 04:18:00,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:18:00,112 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:18:00,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:18:00,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:18:00,113 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 04:18:00,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:18:00,114 INFO L85 PathProgramCache]: Analyzing trace with hash -13819661, now seen corresponding path program 1 times [2023-11-19 04:18:00,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:18:00,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795367168] [2023-11-19 04:18:00,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:18:00,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:18:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:18:00,286 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 04:18:00,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:18:00,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795367168] [2023-11-19 04:18:00,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795367168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:18:00,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:18:00,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:18:00,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137896636] [2023-11-19 04:18:00,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:18:00,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:18:00,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:18:00,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:18:00,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:18:00,290 INFO L87 Difference]: Start difference. First operand 366 states and 929 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:18:00,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:18:00,415 INFO L93 Difference]: Finished difference Result 171 states and 371 transitions. [2023-11-19 04:18:00,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:18:00,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 04:18:00,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:18:00,417 INFO L225 Difference]: With dead ends: 171 [2023-11-19 04:18:00,417 INFO L226 Difference]: Without dead ends: 171 [2023-11-19 04:18:00,418 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 04:18:00,419 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 15 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:18:00,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:18:00,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-11-19 04:18:00,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2023-11-19 04:18:00,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 168 states have (on average 2.2083333333333335) internal successors, (371), 170 states have internal predecessors, (371), 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 04:18:00,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 371 transitions. [2023-11-19 04:18:00,430 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 371 transitions. Word has length 11 [2023-11-19 04:18:00,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:18:00,431 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 371 transitions. [2023-11-19 04:18:00,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:18:00,432 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 371 transitions. [2023-11-19 04:18:00,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:18:00,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:18:00,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:18:00,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:18:00,441 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 04:18:00,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:18:00,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1703220526, now seen corresponding path program 1 times [2023-11-19 04:18:00,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:18:00,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080537224] [2023-11-19 04:18:00,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:18:00,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:18:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:18:00,656 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 04:18:00,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:18:00,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080537224] [2023-11-19 04:18:00,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080537224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:18:00,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:18:00,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:18:00,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251111673] [2023-11-19 04:18:00,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:18:00,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:18:00,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:18:00,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:18:00,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:18:00,660 INFO L87 Difference]: Start difference. First operand 171 states and 371 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 04:18:00,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:18:00,763 INFO L93 Difference]: Finished difference Result 129 states and 299 transitions. [2023-11-19 04:18:00,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:18:00,763 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 04:18:00,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:18:00,764 INFO L225 Difference]: With dead ends: 129 [2023-11-19 04:18:00,764 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:18:00,764 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 04:18:00,766 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 23 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:18:00,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:18:00,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:18:00,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:18:00,768 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 04:18:00,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:18:00,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2023-11-19 04:18:00,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:18:00,768 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:18:00,769 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 04:18:00,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:18:00,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:18:00,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-19 04:18:00,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-19 04:18:00,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-19 04:18:00,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-19 04:18:00,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-19 04:18:00,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-19 04:18:00,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-19 04:18:00,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-19 04:18:00,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-19 04:18:00,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-19 04:18:00,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-19 04:18:00,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-19 04:18:00,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-19 04:18:00,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-19 04:18:00,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-19 04:18:00,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:18:00,780 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 04:18:00,785 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 04:18:00,786 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:18:00,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:18:00 BasicIcfg [2023-11-19 04:18:00,789 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:18:00,790 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:18:00,790 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:18:00,791 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:18:00,791 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:17:45" (3/4) ... [2023-11-19 04:18:00,793 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:18:00,797 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 04:18:00,797 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 04:18:00,798 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 04:18:00,804 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-19 04:18:00,805 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:18:00,805 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 04:18:00,805 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:18:00,915 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:18:00,916 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:18:00,916 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:18:00,917 INFO L158 Benchmark]: Toolchain (without parser) took 17672.31ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 74.7MB in the beginning and 154.5MB in the end (delta: -79.8MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2023-11-19 04:18:00,917 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:18:00,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 615.69ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 49.7MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 04:18:00,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.83ms. Allocated memory is still 117.4MB. Free memory was 49.7MB in the beginning and 47.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:18:00,919 INFO L158 Benchmark]: Boogie Preprocessor took 106.63ms. Allocated memory was 117.4MB in the beginning and 161.5MB in the end (delta: 44.0MB). Free memory was 47.2MB in the beginning and 131.7MB in the end (delta: -84.5MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-11-19 04:18:00,919 INFO L158 Benchmark]: RCFGBuilder took 1340.31ms. Allocated memory is still 161.5MB. Free memory was 131.7MB in the beginning and 123.8MB in the end (delta: 7.9MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. [2023-11-19 04:18:00,920 INFO L158 Benchmark]: TraceAbstraction took 15370.69ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 122.9MB in the beginning and 159.7MB in the end (delta: -36.9MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2023-11-19 04:18:00,921 INFO L158 Benchmark]: Witness Printer took 126.20ms. Allocated memory is still 234.9MB. Free memory was 159.7MB in the beginning and 154.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 04:18:00,923 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 615.69ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 49.7MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.83ms. Allocated memory is still 117.4MB. Free memory was 49.7MB in the beginning and 47.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.63ms. Allocated memory was 117.4MB in the beginning and 161.5MB in the end (delta: 44.0MB). Free memory was 47.2MB in the beginning and 131.7MB in the end (delta: -84.5MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1340.31ms. Allocated memory is still 161.5MB. Free memory was 131.7MB in the beginning and 123.8MB in the end (delta: 7.9MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. * TraceAbstraction took 15370.69ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 122.9MB in the beginning and 159.7MB in the end (delta: -36.9MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. * Witness Printer took 126.20ms. Allocated memory is still 234.9MB. Free memory was 159.7MB in the beginning and 154.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.0s, 146 PlacesBefore, 38 PlacesAfterwards, 139 TransitionsBefore, 29 TransitionsAfterwards, 2874 CoEnabledTransitionPairs, 8 FixpointIterations, 56 TrivialSequentialCompositions, 59 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 2 ChoiceCompositions, 133 TotalNumberOfCompositions, 8524 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3258, independent: 2974, independent conditional: 0, independent unconditional: 2974, dependent: 284, dependent conditional: 0, dependent unconditional: 284, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1949, independent: 1885, independent conditional: 0, independent unconditional: 1885, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1949, independent: 1849, independent conditional: 0, independent unconditional: 1849, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 100, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1103, independent: 103, independent conditional: 0, independent unconditional: 103, dependent: 1000, dependent conditional: 0, dependent unconditional: 1000, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3258, independent: 1089, independent conditional: 0, independent unconditional: 1089, dependent: 220, dependent conditional: 0, dependent unconditional: 220, unknown: 1949, unknown conditional: 0, unknown unconditional: 1949] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 109, Positive conditional cache size: 0, Positive unconditional cache size: 109, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, 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: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 833]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 833]: 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, 170 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 15.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 210 IncrementalHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 5 mSDtfsCounter, 210 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=1102occurred 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, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 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 04:18:00,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bcc1c5-e3b5-42a4-85c0-feee192a1ce6/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