./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX --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 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:12:28,442 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:12:28,535 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 00:12:28,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:12:28,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:12:28,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:12:28,592 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:12:28,593 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:12:28,594 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:12:28,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:12:28,599 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:12:28,600 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:12:28,600 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:12:28,602 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:12:28,603 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:12:28,603 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:12:28,604 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:12:28,604 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:12:28,605 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:12:28,605 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:12:28,606 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:12:28,606 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:12:28,608 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:12:28,608 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:12:28,609 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:12:28,609 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:12:28,610 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:12:28,610 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:12:28,611 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:12:28,611 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:12:28,612 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:12:28,613 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:12:28,613 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:12:28,613 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:12:28,614 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:12:28,614 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:12:28,614 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:12:28,615 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:12:28,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:12:28,616 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:12:28,616 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:12:28,616 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:12:28,617 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:12:28,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:12:28,618 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:12:28,618 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:12:28,618 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:12:28,619 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_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b [2023-11-12 00:12:28,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:12:28,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:12:28,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:12:28,964 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:12:28,964 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:12:28,965 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-12 00:12:32,056 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:12:32,422 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:12:32,422 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-12 00:12:32,438 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/data/c142e6c38/4c6fcf94efc24c76a05437e8af210212/FLAG00b5b6118 [2023-11-12 00:12:32,451 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/data/c142e6c38/4c6fcf94efc24c76a05437e8af210212 [2023-11-12 00:12:32,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:12:32,455 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:12:32,457 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:12:32,457 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:12:32,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:12:32,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:12:32" (1/1) ... [2023-11-12 00:12:32,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3369b457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:32, skipping insertion in model container [2023-11-12 00:12:32,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:12:32" (1/1) ... [2023-11-12 00:12:32,519 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:12:32,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:12:32,948 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:12:33,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:12:33,061 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:33,061 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:33,069 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:12:33,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:33 WrapperNode [2023-11-12 00:12:33,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:12:33,071 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:12:33,072 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:12:33,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:12:33,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:33" (1/1) ... [2023-11-12 00:12:33,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:33" (1/1) ... [2023-11-12 00:12:33,148 INFO L138 Inliner]: procedures = 177, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 84 [2023-11-12 00:12:33,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:12:33,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:12:33,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:12:33,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:12:33,160 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:33" (1/1) ... [2023-11-12 00:12:33,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:33" (1/1) ... [2023-11-12 00:12:33,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:33" (1/1) ... [2023-11-12 00:12:33,175 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:33" (1/1) ... [2023-11-12 00:12:33,187 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:33" (1/1) ... [2023-11-12 00:12:33,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:33" (1/1) ... [2023-11-12 00:12:33,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:33" (1/1) ... [2023-11-12 00:12:33,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:33" (1/1) ... [2023-11-12 00:12:33,208 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:12:33,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:12:33,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:12:33,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:12:33,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:33" (1/1) ... [2023-11-12 00:12:33,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:12:33,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:12:33,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:12:33,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:12:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:12:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:12:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:12:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:12:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:12:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 00:12:33,304 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 00:12:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 00:12:33,305 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 00:12:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 00:12:33,306 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 00:12:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 00:12:33,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 00:12:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:12:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:12:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:12:33,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:12:33,311 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:12:33,472 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:12:33,475 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:12:33,823 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:12:33,856 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:12:33,856 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:12:33,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:33 BoogieIcfgContainer [2023-11-12 00:12:33,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:12:33,861 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:12:33,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:12:33,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:12:33,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:12:32" (1/3) ... [2023-11-12 00:12:33,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474aa453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:12:33, skipping insertion in model container [2023-11-12 00:12:33,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:33" (2/3) ... [2023-11-12 00:12:33,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474aa453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:12:33, skipping insertion in model container [2023-11-12 00:12:33,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:33" (3/3) ... [2023-11-12 00:12:33,869 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-12 00:12:33,877 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:12:33,888 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:12:33,889 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-12 00:12:33,889 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:12:33,957 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:12:33,992 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:12:34,007 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 114 transitions, 244 flow [2023-11-12 00:12:34,010 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 114 transitions, 244 flow [2023-11-12 00:12:34,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 114 transitions, 244 flow [2023-11-12 00:12:34,084 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2023-11-12 00:12:34,085 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:12:34,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 110 events. 3/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-11-12 00:12:34,097 INFO L119 LiptonReduction]: Number of co-enabled transitions 3598 [2023-11-12 00:12:37,672 INFO L134 LiptonReduction]: Checked pairs total: 8565 [2023-11-12 00:12:37,672 INFO L136 LiptonReduction]: Total number of compositions: 99 [2023-11-12 00:12:37,681 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 33 transitions, 82 flow [2023-11-12 00:12:37,918 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3131 states, 3051 states have (on average 4.2395935758767616) internal successors, (12935), 3130 states have internal predecessors, (12935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:12:37,938 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:12:37,945 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;@4395040a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:12:37,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-12 00:12:37,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 3131 states, 3051 states have (on average 4.2395935758767616) internal successors, (12935), 3130 states have internal predecessors, (12935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:12:37,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:12:37,966 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:37,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:12:37,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:12:37,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:37,973 INFO L85 PathProgramCache]: Analyzing trace with hash 12804342, now seen corresponding path program 1 times [2023-11-12 00:12:37,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:12:37,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700212077] [2023-11-12 00:12:37,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:37,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:12:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:12:38,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:12:38,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700212077] [2023-11-12 00:12:38,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700212077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:12:38,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:12:38,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:12:38,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778006981] [2023-11-12 00:12:38,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:12:38,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:12:38,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:12:38,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:12:38,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:12:38,253 INFO L87 Difference]: Start difference. First operand has 3131 states, 3051 states have (on average 4.2395935758767616) internal successors, (12935), 3130 states have internal predecessors, (12935), 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) [2023-11-12 00:12:38,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:12:38,396 INFO L93 Difference]: Finished difference Result 1843 states and 6192 transitions. [2023-11-12 00:12:38,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:12:38,399 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 [2023-11-12 00:12:38,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:12:38,435 INFO L225 Difference]: With dead ends: 1843 [2023-11-12 00:12:38,436 INFO L226 Difference]: Without dead ends: 1843 [2023-11-12 00:12:38,436 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 [2023-11-12 00:12:38,440 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:12:38,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:12:38,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2023-11-12 00:12:38,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1843. [2023-11-12 00:12:38,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1843 states, 1779 states have (on average 3.480607082630691) internal successors, (6192), 1842 states have internal predecessors, (6192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:12:38,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 6192 transitions. [2023-11-12 00:12:38,646 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 6192 transitions. Word has length 4 [2023-11-12 00:12:38,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:12:38,647 INFO L495 AbstractCegarLoop]: Abstraction has 1843 states and 6192 transitions. [2023-11-12 00:12:38,647 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) [2023-11-12 00:12:38,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 6192 transitions. [2023-11-12 00:12:38,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:12:38,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:38,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:12:38,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:12:38,649 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:12:38,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:38,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2133654227, now seen corresponding path program 1 times [2023-11-12 00:12:38,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:12:38,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290539615] [2023-11-12 00:12:38,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:38,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:12:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:38,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:12:38,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:12:38,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290539615] [2023-11-12 00:12:38,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290539615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:12:38,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:12:38,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:12:38,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795741330] [2023-11-12 00:12:38,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:12:38,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:12:38,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:12:38,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:12:38,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:12:38,825 INFO L87 Difference]: Start difference. First operand 1843 states and 6192 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:12:38,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:12:38,923 INFO L93 Difference]: Finished difference Result 1051 states and 3506 transitions. [2023-11-12 00:12:38,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:12:38,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-12 00:12:38,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:12:38,935 INFO L225 Difference]: With dead ends: 1051 [2023-11-12 00:12:38,935 INFO L226 Difference]: Without dead ends: 1051 [2023-11-12 00:12:38,936 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 [2023-11-12 00:12:38,937 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 28 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:12:38,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 8 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:12:38,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2023-11-12 00:12:38,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 1051. [2023-11-12 00:12:38,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 1037 states have (on average 3.3809064609450337) internal successors, (3506), 1050 states have internal predecessors, (3506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:12:38,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 3506 transitions. [2023-11-12 00:12:38,984 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 3506 transitions. Word has length 8 [2023-11-12 00:12:38,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:12:38,984 INFO L495 AbstractCegarLoop]: Abstraction has 1051 states and 3506 transitions. [2023-11-12 00:12:38,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:12:38,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 3506 transitions. [2023-11-12 00:12:38,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:12:38,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:38,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:12:38,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:12:38,987 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:12:38,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:38,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1718773128, now seen corresponding path program 1 times [2023-11-12 00:12:38,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:12:38,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721575867] [2023-11-12 00:12:38,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:38,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:12:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:39,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:12:39,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:12:39,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721575867] [2023-11-12 00:12:39,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721575867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:12:39,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:12:39,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:12:39,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054670617] [2023-11-12 00:12:39,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:12:39,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:12:39,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:12:39,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:12:39,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:12:39,078 INFO L87 Difference]: Start difference. First operand 1051 states and 3506 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:12:39,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:12:39,187 INFO L93 Difference]: Finished difference Result 685 states and 2196 transitions. [2023-11-12 00:12:39,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:12:39,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-12 00:12:39,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:12:39,195 INFO L225 Difference]: With dead ends: 685 [2023-11-12 00:12:39,196 INFO L226 Difference]: Without dead ends: 685 [2023-11-12 00:12:39,197 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 [2023-11-12 00:12:39,199 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:12:39,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 6 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:12:39,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2023-11-12 00:12:39,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 685. [2023-11-12 00:12:39,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 675 states have (on average 3.2533333333333334) internal successors, (2196), 684 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:12:39,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 2196 transitions. [2023-11-12 00:12:39,229 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 2196 transitions. Word has length 9 [2023-11-12 00:12:39,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:12:39,230 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 2196 transitions. [2023-11-12 00:12:39,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:12:39,230 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 2196 transitions. [2023-11-12 00:12:39,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:12:39,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:39,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:12:39,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:12:39,235 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:12:39,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:39,236 INFO L85 PathProgramCache]: Analyzing trace with hash -142906262, now seen corresponding path program 1 times [2023-11-12 00:12:39,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:12:39,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714483334] [2023-11-12 00:12:39,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:39,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:12:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:39,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:12:39,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:12:39,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714483334] [2023-11-12 00:12:39,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714483334] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:12:39,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:12:39,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:12:39,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567963945] [2023-11-12 00:12:39,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:12:39,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:12:39,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:12:39,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:12:39,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:12:39,364 INFO L87 Difference]: Start difference. First operand 685 states and 2196 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:12:39,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:12:39,468 INFO L93 Difference]: Finished difference Result 571 states and 1896 transitions. [2023-11-12 00:12:39,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:12:39,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-12 00:12:39,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:12:39,474 INFO L225 Difference]: With dead ends: 571 [2023-11-12 00:12:39,474 INFO L226 Difference]: Without dead ends: 571 [2023-11-12 00:12:39,475 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 [2023-11-12 00:12:39,476 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 47 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:12:39,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 8 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:12:39,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-11-12 00:12:39,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2023-11-12 00:12:39,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 567 states have (on average 3.3439153439153437) internal successors, (1896), 570 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:12:39,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 1896 transitions. [2023-11-12 00:12:39,543 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 1896 transitions. Word has length 14 [2023-11-12 00:12:39,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:12:39,544 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 1896 transitions. [2023-11-12 00:12:39,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:12:39,544 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 1896 transitions. [2023-11-12 00:12:39,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:12:39,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:39,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:12:39,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:12:39,548 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:12:39,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:39,549 INFO L85 PathProgramCache]: Analyzing trace with hash 907033666, now seen corresponding path program 1 times [2023-11-12 00:12:39,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:12:39,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730900879] [2023-11-12 00:12:39,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:39,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:12:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:39,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:12:39,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:12:39,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730900879] [2023-11-12 00:12:39,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730900879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:12:39,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:12:39,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:12:39,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565225630] [2023-11-12 00:12:39,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:12:39,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:12:39,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:12:39,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:12:39,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:12:39,658 INFO L87 Difference]: Start difference. First operand 571 states and 1896 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:12:39,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:12:39,756 INFO L93 Difference]: Finished difference Result 559 states and 1876 transitions. [2023-11-12 00:12:39,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:12:39,757 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-12 00:12:39,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:12:39,757 INFO L225 Difference]: With dead ends: 559 [2023-11-12 00:12:39,758 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:12:39,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:12:39,759 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 63 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:12:39,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 8 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:12:39,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:12:39,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:12:39,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:12:39,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:12:39,761 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2023-11-12 00:12:39,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:12:39,761 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:12:39,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:12:39,762 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:12:39,762 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:12:39,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-12 00:12:39,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-12 00:12:39,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-12 00:12:39,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-12 00:12:39,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-12 00:12:39,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-12 00:12:39,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-12 00:12:39,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-12 00:12:39,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-12 00:12:39,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-12 00:12:39,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-12 00:12:39,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-12 00:12:39,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-12 00:12:39,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-12 00:12:39,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-12 00:12:39,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-12 00:12:39,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-12 00:12:39,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-12 00:12:39,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-12 00:12:39,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-12 00:12:39,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:12:39,772 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 00:12:39,777 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 00:12:39,777 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:12:39,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:12:39 BasicIcfg [2023-11-12 00:12:39,780 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:12:39,781 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:12:39,781 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:12:39,781 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:12:39,782 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:33" (3/4) ... [2023-11-12 00:12:39,783 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:12:39,787 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 00:12:39,787 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 00:12:39,787 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-12 00:12:39,787 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-12 00:12:39,792 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-12 00:12:39,793 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 00:12:39,793 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:12:39,793 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:12:39,874 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:12:39,875 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:12:39,875 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:12:39,876 INFO L158 Benchmark]: Toolchain (without parser) took 7420.63ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 142.3MB in the beginning and 142.9MB in the end (delta: -621.7kB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2023-11-12 00:12:39,876 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 134.2MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:12:39,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 613.91ms. Allocated memory is still 188.7MB. Free memory was 142.3MB in the beginning and 121.4MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 00:12:39,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.85ms. Allocated memory is still 188.7MB. Free memory was 121.4MB in the beginning and 119.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:12:39,877 INFO L158 Benchmark]: Boogie Preprocessor took 64.14ms. Allocated memory is still 188.7MB. Free memory was 119.3MB in the beginning and 117.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:12:39,878 INFO L158 Benchmark]: RCFGBuilder took 644.39ms. Allocated memory is still 188.7MB. Free memory was 117.7MB in the beginning and 150.6MB in the end (delta: -32.9MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-11-12 00:12:39,878 INFO L158 Benchmark]: TraceAbstraction took 5919.21ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 150.6MB in the beginning and 147.1MB in the end (delta: 3.5MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2023-11-12 00:12:39,879 INFO L158 Benchmark]: Witness Printer took 93.89ms. Allocated memory is still 226.5MB. Free memory was 147.1MB in the beginning and 142.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:12:39,881 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 134.2MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 613.91ms. Allocated memory is still 188.7MB. Free memory was 142.3MB in the beginning and 121.4MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.85ms. Allocated memory is still 188.7MB. Free memory was 121.4MB in the beginning and 119.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.14ms. Allocated memory is still 188.7MB. Free memory was 119.3MB in the beginning and 117.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 644.39ms. Allocated memory is still 188.7MB. Free memory was 117.7MB in the beginning and 150.6MB in the end (delta: -32.9MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5919.21ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 150.6MB in the beginning and 147.1MB in the end (delta: 3.5MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. * Witness Printer took 93.89ms. Allocated memory is still 226.5MB. Free memory was 147.1MB in the beginning and 142.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 124 PlacesBefore, 45 PlacesAfterwards, 114 TransitionsBefore, 33 TransitionsAfterwards, 3598 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 99 TotalNumberOfCompositions, 8565 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4432, independent: 4237, independent conditional: 0, independent unconditional: 4237, dependent: 195, dependent conditional: 0, dependent unconditional: 195, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2368, independent: 2322, independent conditional: 0, independent unconditional: 2322, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2368, independent: 2265, independent conditional: 0, independent unconditional: 2265, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 103, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 318, independent: 189, independent conditional: 0, independent unconditional: 189, dependent: 129, dependent conditional: 0, dependent unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4432, independent: 1915, independent conditional: 0, independent unconditional: 1915, dependent: 149, dependent conditional: 0, dependent unconditional: 149, unknown: 2368, unknown conditional: 0, unknown unconditional: 2368] , Statistics on independence cache: Total cache size (in pairs): 223, Positive cache size: 204, Positive conditional cache size: 0, Positive unconditional cache size: 204, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, 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: 734]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 734]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: 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 9 procedures, 150 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 174 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 174 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 314 IncrementalHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 12 mSDtfsCounter, 314 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3131occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 00:12:39,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8b9918-fc3e-4d6d-9210-a6b3d1dd7982/bin/utaipan-verify-NcY6lQBIFX/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