./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix050.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_a478566c-dab4-4625-a252-854c3e4490fd/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a478566c-dab4-4625-a252-854c3e4490fd/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_a478566c-dab4-4625-a252-854c3e4490fd/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a478566c-dab4-4625-a252-854c3e4490fd/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix050.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a478566c-dab4-4625-a252-854c3e4490fd/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_a478566c-dab4-4625-a252-854c3e4490fd/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 a3c87384db48703a1f350b065ac4130898667537456cdd449d5c78c22c9ba26d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:01:13,334 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:01:13,411 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a478566c-dab4-4625-a252-854c3e4490fd/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 01:01:13,416 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:01:13,416 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:01:13,448 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:01:13,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:01:13,449 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:01:13,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:01:13,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:01:13,451 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:01:13,452 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:01:13,453 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:01:13,453 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:01:13,454 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:01:13,455 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:01:13,455 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:01:13,456 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:01:13,457 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:01:13,457 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:01:13,458 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:01:13,460 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:01:13,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:01:13,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:01:13,462 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:01:13,463 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:01:13,463 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:01:13,464 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:01:13,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:01:13,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:01:13,466 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:01:13,466 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 01:01:13,467 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 01:01:13,467 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:01:13,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:01:13,468 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:01:13,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:01:13,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:01:13,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:01:13,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:01:13,471 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:01:13,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:01:13,476 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:01:13,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:01:13,476 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:01:13,476 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:01:13,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:01:13,477 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_a478566c-dab4-4625-a252-854c3e4490fd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a478566c-dab4-4625-a252-854c3e4490fd/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3c87384db48703a1f350b065ac4130898667537456cdd449d5c78c22c9ba26d [2023-11-12 01:01:13,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:01:13,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:01:13,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:01:13,786 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:01:13,787 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:01:13,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a478566c-dab4-4625-a252-854c3e4490fd/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-wmm/mix050.i [2023-11-12 01:01:16,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:01:17,286 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:01:17,286 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a478566c-dab4-4625-a252-854c3e4490fd/sv-benchmarks/c/pthread-wmm/mix050.i [2023-11-12 01:01:17,321 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a478566c-dab4-4625-a252-854c3e4490fd/bin/utaipan-verify-NcY6lQBIFX/data/588c34c15/6492b7a2cd314bf5a2ebae94f256f7bc/FLAG04c42ca19 [2023-11-12 01:01:17,336 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a478566c-dab4-4625-a252-854c3e4490fd/bin/utaipan-verify-NcY6lQBIFX/data/588c34c15/6492b7a2cd314bf5a2ebae94f256f7bc [2023-11-12 01:01:17,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:01:17,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:01:17,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:01:17,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:01:17,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:01:17,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:17" (1/1) ... [2023-11-12 01:01:17,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f794dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:17, skipping insertion in model container [2023-11-12 01:01:17,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:17" (1/1) ... [2023-11-12 01:01:17,407 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:01:17,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:01:17,973 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:01:18,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:01:18,088 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:18,088 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:18,097 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:01:18,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:18 WrapperNode [2023-11-12 01:01:18,097 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:01:18,099 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:01:18,099 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:01:18,099 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:01:18,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:18" (1/1) ... [2023-11-12 01:01:18,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:18" (1/1) ... [2023-11-12 01:01:18,157 INFO L138 Inliner]: procedures = 177, calls = 68, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 152 [2023-11-12 01:01:18,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:01:18,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:01:18,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:01:18,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:01:18,169 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:18" (1/1) ... [2023-11-12 01:01:18,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:18" (1/1) ... [2023-11-12 01:01:18,175 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:18" (1/1) ... [2023-11-12 01:01:18,175 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:18" (1/1) ... [2023-11-12 01:01:18,196 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:18" (1/1) ... [2023-11-12 01:01:18,200 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:18" (1/1) ... [2023-11-12 01:01:18,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:18" (1/1) ... [2023-11-12 01:01:18,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:18" (1/1) ... [2023-11-12 01:01:18,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:01:18,229 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:01:18,229 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:01:18,229 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:01:18,230 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:18" (1/1) ... [2023-11-12 01:01:18,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:01:18,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a478566c-dab4-4625-a252-854c3e4490fd/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:01:18,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a478566c-dab4-4625-a252-854c3e4490fd/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:01:18,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a478566c-dab4-4625-a252-854c3e4490fd/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:01:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 01:01:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 01:01:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:01:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:01:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:01:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 01:01:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 01:01:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 01:01:18,333 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 01:01:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 01:01:18,333 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 01:01:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 01:01:18,333 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 01:01:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:01:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 01:01:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:01:18,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:01:18,337 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 01:01:18,537 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:01:18,539 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:01:19,006 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:01:19,203 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:01:19,204 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 01:01:19,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:19 BoogieIcfgContainer [2023-11-12 01:01:19,207 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:01:19,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:01:19,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:01:19,214 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:01:19,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:01:17" (1/3) ... [2023-11-12 01:01:19,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e944425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:01:19, skipping insertion in model container [2023-11-12 01:01:19,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:18" (2/3) ... [2023-11-12 01:01:19,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e944425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:01:19, skipping insertion in model container [2023-11-12 01:01:19,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:19" (3/3) ... [2023-11-12 01:01:19,217 INFO L112 eAbstractionObserver]: Analyzing ICFG mix050.i [2023-11-12 01:01:19,229 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 01:01:19,240 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:01:19,241 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-12 01:01:19,241 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 01:01:19,325 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 01:01:19,411 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 01:01:19,444 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 144 transitions, 304 flow [2023-11-12 01:01:19,447 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 144 transitions, 304 flow [2023-11-12 01:01:19,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 144 transitions, 304 flow [2023-11-12 01:01:19,532 INFO L124 PetriNetUnfolderBase]: 3/140 cut-off events. [2023-11-12 01:01:19,532 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 01:01:19,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 140 events. 3/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2023-11-12 01:01:19,547 INFO L119 LiptonReduction]: Number of co-enabled transitions 4536 [2023-11-12 01:01:26,316 INFO L134 LiptonReduction]: Checked pairs total: 15555 [2023-11-12 01:01:26,316 INFO L136 LiptonReduction]: Total number of compositions: 123 [2023-11-12 01:01:26,325 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 40 transitions, 96 flow [2023-11-12 01:01:26,941 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 10400 states, 10320 states have (on average 4.385271317829457) internal successors, (45256), 10399 states have internal predecessors, (45256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:26,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:01:26,983 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;@7cd5126a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:01:26,983 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-12 01:01:27,030 INFO L276 IsEmpty]: Start isEmpty. Operand has 10400 states, 10320 states have (on average 4.385271317829457) internal successors, (45256), 10399 states have internal predecessors, (45256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:27,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 01:01:27,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:27,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 01:01:27,045 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 01:01:27,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:27,054 INFO L85 PathProgramCache]: Analyzing trace with hash 607928606, now seen corresponding path program 1 times [2023-11-12 01:01:27,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:27,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42636209] [2023-11-12 01:01:27,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:27,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:27,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 01:01:27,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:01:27,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42636209] [2023-11-12 01:01:27,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42636209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:01:27,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:01:27,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 01:01:27,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533549142] [2023-11-12 01:01:27,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:01:27,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:01:27,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:01:27,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:01:27,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:01:27,559 INFO L87 Difference]: Start difference. First operand has 10400 states, 10320 states have (on average 4.385271317829457) internal successors, (45256), 10399 states have internal predecessors, (45256), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:27,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:01:27,903 INFO L93 Difference]: Finished difference Result 5698 states and 22877 transitions. [2023-11-12 01:01:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:01:27,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-12 01:01:27,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:01:28,083 INFO L225 Difference]: With dead ends: 5698 [2023-11-12 01:01:28,084 INFO L226 Difference]: Without dead ends: 5698 [2023-11-12 01:01:28,085 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 01:01:28,089 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:01:28,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:01:28,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5698 states. [2023-11-12 01:01:28,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5698 to 5698. [2023-11-12 01:01:28,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5698 states, 5683 states have (on average 4.025514692943868) internal successors, (22877), 5697 states have internal predecessors, (22877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:28,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5698 states to 5698 states and 22877 transitions. [2023-11-12 01:01:28,558 INFO L78 Accepts]: Start accepts. Automaton has 5698 states and 22877 transitions. Word has length 5 [2023-11-12 01:01:28,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:01:28,558 INFO L495 AbstractCegarLoop]: Abstraction has 5698 states and 22877 transitions. [2023-11-12 01:01:28,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:28,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5698 states and 22877 transitions. [2023-11-12 01:01:28,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 01:01:28,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:28,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 01:01:28,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 01:01:28,561 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 01:01:28,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:28,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1665915449, now seen corresponding path program 1 times [2023-11-12 01:01:28,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:28,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488787300] [2023-11-12 01:01:28,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:28,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:28,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 01:01:28,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:01:28,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488787300] [2023-11-12 01:01:28,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488787300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:01:28,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:01:28,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 01:01:28,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220110806] [2023-11-12 01:01:28,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:01:28,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:01:28,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:01:28,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:01:28,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:01:28,712 INFO L87 Difference]: Start difference. First operand 5698 states and 22877 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:29,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:01:29,004 INFO L93 Difference]: Finished difference Result 4080 states and 15320 transitions. [2023-11-12 01:01:29,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:01:29,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-12 01:01:29,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:01:29,057 INFO L225 Difference]: With dead ends: 4080 [2023-11-12 01:01:29,058 INFO L226 Difference]: Without dead ends: 4080 [2023-11-12 01:01:29,058 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 01:01:29,059 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 01:01:29,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 6 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 01:01:29,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4080 states. [2023-11-12 01:01:29,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4080 to 4080. [2023-11-12 01:01:29,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4080 states, 4066 states have (on average 3.767830791933104) internal successors, (15320), 4079 states have internal predecessors, (15320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:29,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4080 states to 4080 states and 15320 transitions. [2023-11-12 01:01:29,346 INFO L78 Accepts]: Start accepts. Automaton has 4080 states and 15320 transitions. Word has length 6 [2023-11-12 01:01:29,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:01:29,346 INFO L495 AbstractCegarLoop]: Abstraction has 4080 states and 15320 transitions. [2023-11-12 01:01:29,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:29,347 INFO L276 IsEmpty]: Start isEmpty. Operand 4080 states and 15320 transitions. [2023-11-12 01:01:29,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 01:01:29,359 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:29,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:01:29,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 01:01:29,363 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 01:01:29,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:29,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1775083202, now seen corresponding path program 1 times [2023-11-12 01:01:29,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:29,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664294563] [2023-11-12 01:01:29,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:29,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:29,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 01:01:29,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:01:29,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664294563] [2023-11-12 01:01:29,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664294563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:01:29,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:01:29,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 01:01:29,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881034859] [2023-11-12 01:01:29,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:01:29,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 01:01:29,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:01:29,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 01:01:29,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 01:01:29,572 INFO L87 Difference]: Start difference. First operand 4080 states and 15320 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:29,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:01:29,785 INFO L93 Difference]: Finished difference Result 3046 states and 11490 transitions. [2023-11-12 01:01:29,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 01:01:29,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-12 01:01:29,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:01:29,884 INFO L225 Difference]: With dead ends: 3046 [2023-11-12 01:01:29,885 INFO L226 Difference]: Without dead ends: 3046 [2023-11-12 01:01:29,885 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 01:01:29,886 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 47 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 01:01:29,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 9 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 01:01:29,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2023-11-12 01:01:29,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 3046. [2023-11-12 01:01:30,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3046 states, 3036 states have (on average 3.7845849802371543) internal successors, (11490), 3045 states have internal predecessors, (11490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:30,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3046 states to 3046 states and 11490 transitions. [2023-11-12 01:01:30,024 INFO L78 Accepts]: Start accepts. Automaton has 3046 states and 11490 transitions. Word has length 12 [2023-11-12 01:01:30,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:01:30,025 INFO L495 AbstractCegarLoop]: Abstraction has 3046 states and 11490 transitions. [2023-11-12 01:01:30,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:30,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3046 states and 11490 transitions. [2023-11-12 01:01:30,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 01:01:30,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:30,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:01:30,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 01:01:30,035 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 01:01:30,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:30,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1107006779, now seen corresponding path program 1 times [2023-11-12 01:01:30,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:30,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132780007] [2023-11-12 01:01:30,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:30,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:30,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 01:01:30,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:01:30,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132780007] [2023-11-12 01:01:30,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132780007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:01:30,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:01:30,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:01:30,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034258442] [2023-11-12 01:01:30,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:01:30,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 01:01:30,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:01:30,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 01:01:30,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:01:30,234 INFO L87 Difference]: Start difference. First operand 3046 states and 11490 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:30,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:01:30,479 INFO L93 Difference]: Finished difference Result 2824 states and 10884 transitions. [2023-11-12 01:01:30,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 01:01:30,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-12 01:01:30,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:01:30,498 INFO L225 Difference]: With dead ends: 2824 [2023-11-12 01:01:30,499 INFO L226 Difference]: Without dead ends: 2824 [2023-11-12 01:01:30,499 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 01:01:30,500 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 82 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 01:01:30,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 12 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 01:01:30,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2023-11-12 01:01:30,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2824. [2023-11-12 01:01:30,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2824 states, 2820 states have (on average 3.8595744680851065) internal successors, (10884), 2823 states have internal predecessors, (10884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:30,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2824 states to 2824 states and 10884 transitions. [2023-11-12 01:01:30,671 INFO L78 Accepts]: Start accepts. Automaton has 2824 states and 10884 transitions. Word has length 18 [2023-11-12 01:01:30,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:01:30,672 INFO L495 AbstractCegarLoop]: Abstraction has 2824 states and 10884 transitions. [2023-11-12 01:01:30,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:30,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2824 states and 10884 transitions. [2023-11-12 01:01:30,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 01:01:30,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:30,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:01:30,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 01:01:30,688 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 01:01:30,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:30,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1967126513, now seen corresponding path program 1 times [2023-11-12 01:01:30,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:30,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474166280] [2023-11-12 01:01:30,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:30,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:30,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 01:01:30,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:01:30,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474166280] [2023-11-12 01:01:30,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474166280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:01:30,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:01:30,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 01:01:30,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017172632] [2023-11-12 01:01:30,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:01:30,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 01:01:30,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:01:30,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 01:01:30,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 01:01:30,897 INFO L87 Difference]: Start difference. First operand 2824 states and 10884 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:31,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:01:31,129 INFO L93 Difference]: Finished difference Result 2808 states and 10856 transitions. [2023-11-12 01:01:31,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 01:01:31,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2023-11-12 01:01:31,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:01:31,130 INFO L225 Difference]: With dead ends: 2808 [2023-11-12 01:01:31,130 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 01:01:31,131 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 01:01:31,132 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 85 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 01:01:31,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 12 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 01:01:31,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 01:01:31,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 01:01:31,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:31,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 01:01:31,134 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2023-11-12 01:01:31,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:01:31,134 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 01:01:31,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 01:01:31,135 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 01:01:31,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 01:01:31,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-12 01:01:31,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-12 01:01:31,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-12 01:01:31,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-12 01:01:31,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-12 01:01:31,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-12 01:01:31,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-12 01:01:31,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-12 01:01:31,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-12 01:01:31,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-12 01:01:31,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-12 01:01:31,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-12 01:01:31,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-12 01:01:31,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-12 01:01:31,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-12 01:01:31,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-12 01:01:31,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-12 01:01:31,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-12 01:01:31,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-12 01:01:31,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-12 01:01:31,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 01:01:31,146 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 01:01:31,152 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 01:01:31,152 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 01:01:31,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 01:01:31 BasicIcfg [2023-11-12 01:01:31,156 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 01:01:31,156 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 01:01:31,156 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 01:01:31,156 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 01:01:31,157 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:19" (3/4) ... [2023-11-12 01:01:31,158 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 01:01:31,161 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 01:01:31,161 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 01:01:31,162 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-12 01:01:31,162 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-12 01:01:31,169 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-12 01:01:31,169 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 01:01:31,170 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 01:01:31,170 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 01:01:31,272 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a478566c-dab4-4625-a252-854c3e4490fd/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 01:01:31,272 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a478566c-dab4-4625-a252-854c3e4490fd/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 01:01:31,272 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 01:01:31,273 INFO L158 Benchmark]: Toolchain (without parser) took 13932.80ms. Allocated memory was 142.6MB in the beginning and 509.6MB in the end (delta: 367.0MB). Free memory was 99.0MB in the beginning and 274.0MB in the end (delta: -174.9MB). Peak memory consumption was 193.1MB. Max. memory is 16.1GB. [2023-11-12 01:01:31,273 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:01:31,274 INFO L158 Benchmark]: CACSL2BoogieTranslator took 756.06ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 74.9MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-12 01:01:31,274 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.74ms. Allocated memory is still 142.6MB. Free memory was 74.9MB in the beginning and 72.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 01:01:31,274 INFO L158 Benchmark]: Boogie Preprocessor took 69.81ms. Allocated memory is still 142.6MB. Free memory was 72.1MB in the beginning and 114.9MB in the end (delta: -42.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2023-11-12 01:01:31,275 INFO L158 Benchmark]: RCFGBuilder took 978.27ms. Allocated memory is still 142.6MB. Free memory was 114.9MB in the beginning and 73.7MB in the end (delta: 41.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-12 01:01:31,275 INFO L158 Benchmark]: TraceAbstraction took 11946.43ms. Allocated memory was 142.6MB in the beginning and 509.6MB in the end (delta: 367.0MB). Free memory was 72.6MB in the beginning and 279.2MB in the end (delta: -206.7MB). Peak memory consumption was 160.4MB. Max. memory is 16.1GB. [2023-11-12 01:01:31,276 INFO L158 Benchmark]: Witness Printer took 116.10ms. Allocated memory is still 509.6MB. Free memory was 279.2MB in the beginning and 274.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 01:01:31,278 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 756.06ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 74.9MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.74ms. Allocated memory is still 142.6MB. Free memory was 74.9MB in the beginning and 72.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.81ms. Allocated memory is still 142.6MB. Free memory was 72.1MB in the beginning and 114.9MB in the end (delta: -42.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * RCFGBuilder took 978.27ms. Allocated memory is still 142.6MB. Free memory was 114.9MB in the beginning and 73.7MB in the end (delta: 41.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11946.43ms. Allocated memory was 142.6MB in the beginning and 509.6MB in the end (delta: 367.0MB). Free memory was 72.6MB in the beginning and 279.2MB in the end (delta: -206.7MB). Peak memory consumption was 160.4MB. Max. memory is 16.1GB. * Witness Printer took 116.10ms. Allocated memory is still 509.6MB. Free memory was 279.2MB in the beginning and 274.0MB in the end (delta: 5.2MB). 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: 6.9s, 154 PlacesBefore, 52 PlacesAfterwards, 144 TransitionsBefore, 40 TransitionsAfterwards, 4536 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 123 TotalNumberOfCompositions, 15555 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5946, independent: 5607, independent conditional: 0, independent unconditional: 5607, dependent: 339, dependent conditional: 0, dependent unconditional: 339, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3150, independent: 3079, independent conditional: 0, independent unconditional: 3079, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3150, independent: 3004, independent conditional: 0, independent unconditional: 3004, dependent: 146, dependent conditional: 0, dependent unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 146, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 924, independent: 256, independent conditional: 0, independent unconditional: 256, dependent: 668, dependent conditional: 0, dependent unconditional: 668, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5946, independent: 2528, independent conditional: 0, independent unconditional: 2528, dependent: 268, dependent conditional: 0, dependent unconditional: 268, unknown: 3150, unknown conditional: 0, unknown unconditional: 3150] , Statistics on independence cache: Total cache size (in pairs): 256, Positive cache size: 225, Positive conditional cache size: 0, Positive unconditional cache size: 225, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, 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: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 848]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 848]: 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, 186 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 11.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 255 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 255 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 332 IncrementalHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 15 mSDtfsCounter, 332 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10400occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 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 01:01:31,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a478566c-dab4-4625-a252-854c3e4490fd/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