./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/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_462f09bd-7de4-42c9-acb2-796f77346abd/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/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_462f09bd-7de4-42c9-acb2-796f77346abd/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 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:55:52,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:55:52,291 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 00:55:52,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:55:52,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:55:52,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:55:52,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:55:52,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:55:52,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:55:52,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:55:52,334 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:55:52,335 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:55:52,336 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:55:52,336 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:55:52,337 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:55:52,338 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:55:52,338 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:55:52,339 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:55:52,339 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:55:52,340 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:55:52,341 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:55:52,342 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:55:52,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:55:52,343 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:55:52,343 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:55:52,344 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:55:52,344 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:55:52,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:55:52,345 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:55:52,346 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:55:52,346 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:55:52,347 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:55:52,347 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:55:52,348 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:55:52,348 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:55:52,349 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:55:52,349 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:55:52,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:55:52,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:52,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:55:52,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:55:52,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:55:52,352 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:55:52,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:55:52,353 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:55:52,354 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:55:52,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:55:52,354 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_462f09bd-7de4-42c9-acb2-796f77346abd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 [2023-11-12 00:55:52,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:55:52,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:55:52,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:55:52,678 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:55:52,679 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:55:52,680 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-12 00:55:55,919 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:55:56,321 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:55:56,324 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-12 00:55:56,350 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/bin/utaipan-verify-NcY6lQBIFX/data/c7ad1683f/e1060a7851b142b793f7d86051c76050/FLAGb3fb59677 [2023-11-12 00:55:56,371 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/bin/utaipan-verify-NcY6lQBIFX/data/c7ad1683f/e1060a7851b142b793f7d86051c76050 [2023-11-12 00:55:56,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:55:56,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:55:56,386 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:56,387 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:55:56,393 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:55:56,394 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:56" (1/1) ... [2023-11-12 00:55:56,395 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b431a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:56, skipping insertion in model container [2023-11-12 00:55:56,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:56" (1/1) ... [2023-11-12 00:55:56,473 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:55:56,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:56,898 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:55:56,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:57,032 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:55:57,032 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:55:57,041 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:55:57,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:57 WrapperNode [2023-11-12 00:55:57,042 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:57,043 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:57,043 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:55:57,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:55:57,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:57" (1/1) ... [2023-11-12 00:55:57,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:57" (1/1) ... [2023-11-12 00:55:57,122 INFO L138 Inliner]: procedures = 177, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 83 [2023-11-12 00:55:57,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:57,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:55:57,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:55:57,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:55:57,139 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:57" (1/1) ... [2023-11-12 00:55:57,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:57" (1/1) ... [2023-11-12 00:55:57,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:57" (1/1) ... [2023-11-12 00:55:57,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:57" (1/1) ... [2023-11-12 00:55:57,167 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:57" (1/1) ... [2023-11-12 00:55:57,183 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:57" (1/1) ... [2023-11-12 00:55:57,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:57" (1/1) ... [2023-11-12 00:55:57,200 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:57" (1/1) ... [2023-11-12 00:55:57,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:55:57,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:55:57,206 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:55:57,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:55:57,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:57" (1/1) ... [2023-11-12 00:55:57,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:57,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:57,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:55:57,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:55:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:55:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:55:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:55:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:55:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:55:57,307 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 00:55:57,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 00:55:57,308 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 00:55:57,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 00:55:57,308 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 00:55:57,309 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 00:55:57,309 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 00:55:57,309 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 00:55:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:55:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:55:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:55:57,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:55:57,313 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 00:55:57,476 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:55:57,478 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:55:57,800 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:55:57,835 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:55:57,835 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:55:57,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:57 BoogieIcfgContainer [2023-11-12 00:55:57,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:55:57,841 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:55:57,842 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:55:57,853 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:55:57,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:55:56" (1/3) ... [2023-11-12 00:55:57,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163a5c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:57, skipping insertion in model container [2023-11-12 00:55:57,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:57" (2/3) ... [2023-11-12 00:55:57,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163a5c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:57, skipping insertion in model container [2023-11-12 00:55:57,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:57" (3/3) ... [2023-11-12 00:55:57,857 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-12 00:55:57,869 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:55:57,881 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:55:57,882 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-12 00:55:57,882 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:55:58,024 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:55:58,067 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:55:58,081 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 113 transitions, 242 flow [2023-11-12 00:55:58,085 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 113 transitions, 242 flow [2023-11-12 00:55:58,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 113 transitions, 242 flow [2023-11-12 00:55:58,149 INFO L124 PetriNetUnfolderBase]: 3/109 cut-off events. [2023-11-12 00:55:58,149 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:55:58,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 109 events. 3/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-11-12 00:55:58,160 INFO L119 LiptonReduction]: Number of co-enabled transitions 3598 [2023-11-12 00:56:01,786 INFO L134 LiptonReduction]: Checked pairs total: 8932 [2023-11-12 00:56:01,787 INFO L136 LiptonReduction]: Total number of compositions: 99 [2023-11-12 00:56:01,797 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 33 transitions, 82 flow [2023-11-12 00:56:02,062 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 00:56:02,082 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:56:02,089 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;@7e61cbda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:56:02,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-12 00:56:02,104 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 00:56:02,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:56:02,109 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:02,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:56:02,110 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 00:56:02,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:02,115 INFO L85 PathProgramCache]: Analyzing trace with hash 12740553, now seen corresponding path program 1 times [2023-11-12 00:56:02,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:02,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402393488] [2023-11-12 00:56:02,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:02,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:02,351 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 00:56:02,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:02,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402393488] [2023-11-12 00:56:02,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402393488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:02,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:02,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:56:02,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626130553] [2023-11-12 00:56:02,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:02,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:56:02,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:02,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:56:02,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:56:02,442 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 00:56:02,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:02,594 INFO L93 Difference]: Finished difference Result 1771 states and 5832 transitions. [2023-11-12 00:56:02,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:56:02,597 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 00:56:02,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:02,631 INFO L225 Difference]: With dead ends: 1771 [2023-11-12 00:56:02,631 INFO L226 Difference]: Without dead ends: 1771 [2023-11-12 00:56:02,632 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 00:56:02,636 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:02,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:02,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2023-11-12 00:56:02,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1771. [2023-11-12 00:56:02,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1771 states, 1707 states have (on average 3.4165202108963095) internal successors, (5832), 1770 states have internal predecessors, (5832), 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 00:56:02,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 5832 transitions. [2023-11-12 00:56:02,820 INFO L78 Accepts]: Start accepts. Automaton has 1771 states and 5832 transitions. Word has length 4 [2023-11-12 00:56:02,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:02,821 INFO L495 AbstractCegarLoop]: Abstraction has 1771 states and 5832 transitions. [2023-11-12 00:56:02,821 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 00:56:02,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1771 states and 5832 transitions. [2023-11-12 00:56:02,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:56:02,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:02,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:02,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:56:02,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:56:02,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:02,829 INFO L85 PathProgramCache]: Analyzing trace with hash -468029195, now seen corresponding path program 1 times [2023-11-12 00:56:02,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:02,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139950672] [2023-11-12 00:56:02,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:02,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:03,046 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 00:56:03,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:03,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139950672] [2023-11-12 00:56:03,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139950672] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:03,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:03,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:56:03,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855265788] [2023-11-12 00:56:03,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:03,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:56:03,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:03,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:56:03,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:56:03,051 INFO L87 Difference]: Start difference. First operand 1771 states and 5832 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 00:56:03,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:03,149 INFO L93 Difference]: Finished difference Result 979 states and 3146 transitions. [2023-11-12 00:56:03,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:56:03,150 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 00:56:03,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:03,160 INFO L225 Difference]: With dead ends: 979 [2023-11-12 00:56:03,161 INFO L226 Difference]: Without dead ends: 979 [2023-11-12 00:56:03,161 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 00:56:03,163 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 26 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:03,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 8 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:03,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2023-11-12 00:56:03,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 979. [2023-11-12 00:56:03,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 965 states have (on average 3.260103626943005) internal successors, (3146), 978 states have internal predecessors, (3146), 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 00:56:03,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 3146 transitions. [2023-11-12 00:56:03,209 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 3146 transitions. Word has length 8 [2023-11-12 00:56:03,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:03,210 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 3146 transitions. [2023-11-12 00:56:03,210 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 00:56:03,210 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 3146 transitions. [2023-11-12 00:56:03,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:56:03,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:03,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:03,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:56:03,213 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 00:56:03,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:03,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1624004170, now seen corresponding path program 1 times [2023-11-12 00:56:03,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:03,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139167823] [2023-11-12 00:56:03,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:03,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:03,291 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 00:56:03,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:03,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139167823] [2023-11-12 00:56:03,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139167823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:03,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:03,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:56:03,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413642192] [2023-11-12 00:56:03,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:03,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:56:03,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:03,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:56:03,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:56:03,295 INFO L87 Difference]: Start difference. First operand 979 states and 3146 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 00:56:03,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:03,383 INFO L93 Difference]: Finished difference Result 493 states and 1356 transitions. [2023-11-12 00:56:03,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:56:03,384 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 00:56:03,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:03,389 INFO L225 Difference]: With dead ends: 493 [2023-11-12 00:56:03,389 INFO L226 Difference]: Without dead ends: 493 [2023-11-12 00:56:03,390 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 00:56:03,394 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 19 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:03,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 6 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:03,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-11-12 00:56:03,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2023-11-12 00:56:03,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 483 states have (on average 2.8074534161490683) internal successors, (1356), 492 states have internal predecessors, (1356), 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 00:56:03,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 1356 transitions. [2023-11-12 00:56:03,433 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 1356 transitions. Word has length 9 [2023-11-12 00:56:03,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:03,434 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 1356 transitions. [2023-11-12 00:56:03,435 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 00:56:03,435 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 1356 transitions. [2023-11-12 00:56:03,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:56:03,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:03,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:03,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:56:03,440 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:56:03,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:03,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1855336313, now seen corresponding path program 1 times [2023-11-12 00:56:03,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:03,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757539662] [2023-11-12 00:56:03,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:03,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:03,649 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 00:56:03,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:03,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757539662] [2023-11-12 00:56:03,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757539662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:03,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:03,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:56:03,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415660244] [2023-11-12 00:56:03,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:03,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:56:03,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:03,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:56:03,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:56:03,652 INFO L87 Difference]: Start difference. First operand 493 states and 1356 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 00:56:03,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:03,753 INFO L93 Difference]: Finished difference Result 305 states and 834 transitions. [2023-11-12 00:56:03,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:56:03,753 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 00:56:03,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:03,756 INFO L225 Difference]: With dead ends: 305 [2023-11-12 00:56:03,756 INFO L226 Difference]: Without dead ends: 305 [2023-11-12 00:56:03,757 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 00:56:03,758 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 30 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:03,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 8 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:03,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-11-12 00:56:03,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2023-11-12 00:56:03,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 301 states have (on average 2.770764119601329) internal successors, (834), 304 states have internal predecessors, (834), 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 00:56:03,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 834 transitions. [2023-11-12 00:56:03,771 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 834 transitions. Word has length 14 [2023-11-12 00:56:03,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:03,771 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 834 transitions. [2023-11-12 00:56:03,771 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 00:56:03,772 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 834 transitions. [2023-11-12 00:56:03,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:56:03,775 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:03,775 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 00:56:03,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:56:03,775 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:56:03,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:03,776 INFO L85 PathProgramCache]: Analyzing trace with hash -807297805, now seen corresponding path program 1 times [2023-11-12 00:56:03,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:03,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265566697] [2023-11-12 00:56:03,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:03,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:03,880 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 00:56:03,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:03,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265566697] [2023-11-12 00:56:03,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265566697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:03,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:03,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:56:03,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701376659] [2023-11-12 00:56:03,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:03,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:56:03,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:03,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:56:03,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:56:03,884 INFO L87 Difference]: Start difference. First operand 305 states and 834 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 00:56:03,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:03,972 INFO L93 Difference]: Finished difference Result 273 states and 782 transitions. [2023-11-12 00:56:03,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:56:03,972 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 00:56:03,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:03,973 INFO L225 Difference]: With dead ends: 273 [2023-11-12 00:56:03,973 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:56:03,974 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 00:56:03,975 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 40 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:03,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 8 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:56:03,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:56:03,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:56:03,978 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 00:56:03,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:56:03,978 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2023-11-12 00:56:03,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:03,979 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:56:03,979 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 00:56:03,983 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:56:03,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:56:03,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-12 00:56:03,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-12 00:56:03,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-12 00:56:03,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-12 00:56:03,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-12 00:56:03,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-12 00:56:03,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-12 00:56:03,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-12 00:56:03,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-12 00:56:03,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-12 00:56:03,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-12 00:56:03,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-12 00:56:03,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-12 00:56:03,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-12 00:56:03,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-12 00:56:03,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-12 00:56:03,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-12 00:56:03,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-12 00:56:03,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-12 00:56:03,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-12 00:56:03,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:56:04,000 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 00:56:04,006 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 00:56:04,006 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:56:04,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:56:04 BasicIcfg [2023-11-12 00:56:04,012 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:56:04,013 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:56:04,013 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:56:04,013 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:56:04,014 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:57" (3/4) ... [2023-11-12 00:56:04,015 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:56:04,019 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 00:56:04,019 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 00:56:04,019 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-12 00:56:04,019 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-12 00:56:04,027 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-12 00:56:04,027 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 00:56:04,027 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:56:04,028 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:56:04,124 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:56:04,125 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:56:04,125 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:56:04,126 INFO L158 Benchmark]: Toolchain (without parser) took 7743.27ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 136.9MB in the beginning and 112.3MB in the end (delta: 24.5MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2023-11-12 00:56:04,126 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:56:04,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.87ms. Allocated memory is still 167.8MB. Free memory was 136.7MB in the beginning and 120.9MB in the end (delta: 15.8MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2023-11-12 00:56:04,127 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.90ms. Allocated memory is still 167.8MB. Free memory was 120.9MB in the beginning and 118.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:56:04,127 INFO L158 Benchmark]: Boogie Preprocessor took 77.69ms. Allocated memory is still 167.8MB. Free memory was 118.8MB in the beginning and 117.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:56:04,127 INFO L158 Benchmark]: RCFGBuilder took 633.45ms. Allocated memory is still 167.8MB. Free memory was 116.7MB in the beginning and 129.6MB in the end (delta: -12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:56:04,128 INFO L158 Benchmark]: TraceAbstraction took 6171.19ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 128.7MB in the beginning and 116.5MB in the end (delta: 12.2MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2023-11-12 00:56:04,129 INFO L158 Benchmark]: Witness Printer took 112.10ms. Allocated memory is still 201.3MB. Free memory was 116.5MB in the beginning and 112.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:56:04,131 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 655.87ms. Allocated memory is still 167.8MB. Free memory was 136.7MB in the beginning and 120.9MB in the end (delta: 15.8MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.90ms. Allocated memory is still 167.8MB. Free memory was 120.9MB in the beginning and 118.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.69ms. Allocated memory is still 167.8MB. Free memory was 118.8MB in the beginning and 117.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 633.45ms. Allocated memory is still 167.8MB. Free memory was 116.7MB in the beginning and 129.6MB in the end (delta: -12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6171.19ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 128.7MB in the beginning and 116.5MB in the end (delta: 12.2MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * Witness Printer took 112.10ms. Allocated memory is still 201.3MB. Free memory was 116.5MB in the beginning and 112.3MB 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, 123 PlacesBefore, 45 PlacesAfterwards, 113 TransitionsBefore, 33 TransitionsAfterwards, 3598 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 99 TotalNumberOfCompositions, 8932 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4654, independent: 4473, independent conditional: 0, independent unconditional: 4473, dependent: 181, dependent conditional: 0, dependent unconditional: 181, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2385, independent: 2333, independent conditional: 0, independent unconditional: 2333, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2385, independent: 2280, independent conditional: 0, independent unconditional: 2280, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 105, independent: 53, independent conditional: 0, independent unconditional: 53, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 347, independent: 190, independent conditional: 0, independent unconditional: 190, dependent: 157, dependent conditional: 0, dependent unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4654, independent: 2140, independent conditional: 0, independent unconditional: 2140, dependent: 129, dependent conditional: 0, dependent unconditional: 129, unknown: 2385, unknown conditional: 0, unknown unconditional: 2385] , Statistics on independence cache: Total cache size (in pairs): 217, Positive cache size: 199, Positive conditional cache size: 0, Positive unconditional cache size: 199, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, 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: 732]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 732]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 744]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 744]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 759]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 759]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: 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, 149 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 304 IncrementalHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 12 mSDtfsCounter, 304 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, 0.6s 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 00:56:04,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462f09bd-7de4-42c9-acb2-796f77346abd/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE