./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 449d00de99d52e6ea9aa539e57f46adfc8dfbb78972c0dc655f91843e743f43f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:15:56,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:15:56,673 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 04:15:56,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:15:56,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:15:56,706 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:15:56,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:15:56,708 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:15:56,709 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:15:56,709 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:15:56,710 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:15:56,710 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:15:56,711 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:15:56,711 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:15:56,712 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:15:56,713 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:15:56,713 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:15:56,713 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:15:56,714 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:15:56,714 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:15:56,715 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:15:56,716 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:15:56,716 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:15:56,717 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:15:56,717 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:15:56,718 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:15:56,733 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:15:56,735 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:15:56,735 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:15:56,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:15:56,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:15:56,738 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:15:56,738 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:15:56,738 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:15:56,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:15:56,739 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:15:56,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:15:56,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:15:56,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:15:56,740 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:15:56,740 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:15:56,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:15:56,741 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:15:56,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:15:56,742 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:15:56,742 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:15:56,742 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:15:56,743 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_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 449d00de99d52e6ea9aa539e57f46adfc8dfbb78972c0dc655f91843e743f43f [2023-11-19 04:15:57,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:15:57,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:15:57,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:15:57,101 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:15:57,101 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:15:57,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i [2023-11-19 04:16:00,124 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:16:00,462 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:16:00,463 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i [2023-11-19 04:16:00,486 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/data/fe2fda2e2/1813c114d4c64d4da608240398349ef8/FLAGb790d9bfc [2023-11-19 04:16:00,505 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/data/fe2fda2e2/1813c114d4c64d4da608240398349ef8 [2023-11-19 04:16:00,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:16:00,509 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:16:00,510 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:16:00,511 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:16:00,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:16:00,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:16:00" (1/1) ... [2023-11-19 04:16:00,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e479ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:00, skipping insertion in model container [2023-11-19 04:16:00,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:16:00" (1/1) ... [2023-11-19 04:16:00,585 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:16:01,005 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:16:01,022 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:16:01,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:16:01,161 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:16:01,161 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:16:01,169 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:16:01,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:01 WrapperNode [2023-11-19 04:16:01,170 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:16:01,171 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:16:01,171 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:16:01,171 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:16:01,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:01" (1/1) ... [2023-11-19 04:16:01,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:01" (1/1) ... [2023-11-19 04:16:01,267 INFO L138 Inliner]: procedures = 176, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 139 [2023-11-19 04:16:01,271 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:16:01,272 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:16:01,272 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:16:01,272 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:16:01,282 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:01" (1/1) ... [2023-11-19 04:16:01,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:01" (1/1) ... [2023-11-19 04:16:01,301 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:01" (1/1) ... [2023-11-19 04:16:01,305 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:01" (1/1) ... [2023-11-19 04:16:01,316 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:01" (1/1) ... [2023-11-19 04:16:01,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:01" (1/1) ... [2023-11-19 04:16:01,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:01" (1/1) ... [2023-11-19 04:16:01,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:01" (1/1) ... [2023-11-19 04:16:01,354 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:16:01,355 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:16:01,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:16:01,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:16:01,359 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:01" (1/1) ... [2023-11-19 04:16:01,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:16:01,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:16:01,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:16:01,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:16:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:16:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:16:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:16:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:16:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:16:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:16:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 04:16:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 04:16:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 04:16:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 04:16:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 04:16:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 04:16:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:16:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:16:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:16:01,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:16:01,473 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:16:01,721 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:16:01,723 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:16:02,189 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:16:02,605 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:16:02,605 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:16:02,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:16:02 BoogieIcfgContainer [2023-11-19 04:16:02,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:16:02,642 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:16:02,642 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:16:02,646 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:16:02,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:16:00" (1/3) ... [2023-11-19 04:16:02,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744dd90e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:16:02, skipping insertion in model container [2023-11-19 04:16:02,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:01" (2/3) ... [2023-11-19 04:16:02,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744dd90e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:16:02, skipping insertion in model container [2023-11-19 04:16:02,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:16:02" (3/3) ... [2023-11-19 04:16:02,650 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_power.oepc.i [2023-11-19 04:16:02,659 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 04:16:02,698 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:16:02,699 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 04:16:02,699 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:16:02,821 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 04:16:02,869 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:16:02,892 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 138 transitions, 288 flow [2023-11-19 04:16:02,897 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 138 transitions, 288 flow [2023-11-19 04:16:02,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 138 transitions, 288 flow [2023-11-19 04:16:02,989 INFO L124 PetriNetUnfolderBase]: 3/135 cut-off events. [2023-11-19 04:16:02,989 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 04:16:02,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 135 events. 3/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2023-11-19 04:16:02,999 INFO L119 LiptonReduction]: Number of co-enabled transitions 2738 [2023-11-19 04:16:14,167 INFO L134 LiptonReduction]: Checked pairs total: 7071 [2023-11-19 04:16:14,167 INFO L136 LiptonReduction]: Total number of compositions: 130 [2023-11-19 04:16:14,175 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 28 transitions, 68 flow [2023-11-19 04:16:14,295 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 910 states, 884 states have (on average 3.504524886877828) internal successors, (3098), 909 states have internal predecessors, (3098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:16:14,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:16:14,329 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;@33f0cd0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:16:14,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-19 04:16:14,335 INFO L276 IsEmpty]: Start isEmpty. Operand has 910 states, 884 states have (on average 3.504524886877828) internal successors, (3098), 909 states have internal predecessors, (3098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:16:14,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:16:14,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:16:14,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 04:16:14,341 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 04:16:14,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:16:14,347 INFO L85 PathProgramCache]: Analyzing trace with hash 24376428, now seen corresponding path program 1 times [2023-11-19 04:16:14,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:16:14,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953204332] [2023-11-19 04:16:14,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:16:14,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:16:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:16:14,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:16:14,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:16:14,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953204332] [2023-11-19 04:16:14,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953204332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:16:14,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:16:14,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 04:16:14,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241245434] [2023-11-19 04:16:14,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:16:14,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:16:14,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:16:14,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:16:14,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:16:14,856 INFO L87 Difference]: Start difference. First operand has 910 states, 884 states have (on average 3.504524886877828) internal successors, (3098), 909 states have internal predecessors, (3098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:16:14,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:16:14,996 INFO L93 Difference]: Finished difference Result 422 states and 1069 transitions. [2023-11-19 04:16:15,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:16:15,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 04:16:15,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:16:15,027 INFO L225 Difference]: With dead ends: 422 [2023-11-19 04:16:15,028 INFO L226 Difference]: Without dead ends: 422 [2023-11-19 04:16:15,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:16:15,061 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:16:15,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:16:15,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2023-11-19 04:16:15,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2023-11-19 04:16:15,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 404 states have (on average 2.646039603960396) internal successors, (1069), 421 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:16:15,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 1069 transitions. [2023-11-19 04:16:15,142 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 1069 transitions. Word has length 4 [2023-11-19 04:16:15,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:16:15,143 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 1069 transitions. [2023-11-19 04:16:15,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:16:15,143 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 1069 transitions. [2023-11-19 04:16:15,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:16:15,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:16:15,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:16:15,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:16:15,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 04:16:15,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:16:15,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2037422796, now seen corresponding path program 1 times [2023-11-19 04:16:15,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:16:15,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336526463] [2023-11-19 04:16:15,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:16:15,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:16:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:16:15,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:16:15,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:16:15,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336526463] [2023-11-19 04:16:15,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336526463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:16:15,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:16:15,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:16:15,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598920246] [2023-11-19 04:16:15,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:16:15,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:16:15,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:16:15,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:16:15,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:16:15,356 INFO L87 Difference]: Start difference. First operand 422 states and 1069 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) [2023-11-19 04:16:15,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:16:15,461 INFO L93 Difference]: Finished difference Result 298 states and 743 transitions. [2023-11-19 04:16:15,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:16:15,462 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 [2023-11-19 04:16:15,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:16:15,465 INFO L225 Difference]: With dead ends: 298 [2023-11-19 04:16:15,465 INFO L226 Difference]: Without dead ends: 298 [2023-11-19 04:16:15,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:16:15,467 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:16:15,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 0 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:16:15,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-11-19 04:16:15,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2023-11-19 04:16:15,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 292 states have (on average 2.5445205479452055) internal successors, (743), 297 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:16:15,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 743 transitions. [2023-11-19 04:16:15,488 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 743 transitions. Word has length 8 [2023-11-19 04:16:15,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:16:15,488 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 743 transitions. [2023-11-19 04:16:15,488 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) [2023-11-19 04:16:15,489 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 743 transitions. [2023-11-19 04:16:15,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:16:15,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:16:15,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:16:15,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:16:15,490 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 04:16:15,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:16:15,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1264401142, now seen corresponding path program 1 times [2023-11-19 04:16:15,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:16:15,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412246351] [2023-11-19 04:16:15,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:16:15,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:16:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:16:15,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:16:15,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:16:15,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412246351] [2023-11-19 04:16:15,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412246351] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:16:15,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:16:15,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:16:15,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355359147] [2023-11-19 04:16:15,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:16:15,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:16:15,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:16:15,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:16:15,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:16:15,584 INFO L87 Difference]: Start difference. First operand 298 states and 743 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:16:15,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:16:15,678 INFO L93 Difference]: Finished difference Result 132 states and 270 transitions. [2023-11-19 04:16:15,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:16:15,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 04:16:15,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:16:15,679 INFO L225 Difference]: With dead ends: 132 [2023-11-19 04:16:15,680 INFO L226 Difference]: Without dead ends: 132 [2023-11-19 04:16:15,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:16:15,681 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:16:15,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:16:15,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-11-19 04:16:15,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2023-11-19 04:16:15,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 129 states have (on average 2.0930232558139537) internal successors, (270), 131 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:16:15,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 270 transitions. [2023-11-19 04:16:15,690 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 270 transitions. Word has length 9 [2023-11-19 04:16:15,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:16:15,690 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 270 transitions. [2023-11-19 04:16:15,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:16:15,691 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 270 transitions. [2023-11-19 04:16:15,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:16:15,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:16:15,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:16:15,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:16:15,693 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 04:16:15,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:16:15,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1274035913, now seen corresponding path program 1 times [2023-11-19 04:16:15,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:16:15,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463970012] [2023-11-19 04:16:15,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:16:15,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:16:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:16:15,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:16:15,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:16:15,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463970012] [2023-11-19 04:16:15,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463970012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:16:15,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:16:15,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:16:15,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967583931] [2023-11-19 04:16:15,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:16:15,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:16:15,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:16:15,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:16:15,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:16:15,865 INFO L87 Difference]: Start difference. First operand 132 states and 270 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:16:15,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:16:15,944 INFO L93 Difference]: Finished difference Result 93 states and 204 transitions. [2023-11-19 04:16:15,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:16:15,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2023-11-19 04:16:15,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:16:15,945 INFO L225 Difference]: With dead ends: 93 [2023-11-19 04:16:15,945 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:16:15,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:16:15,947 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:16:15,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 0 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:16:15,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:16:15,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:16:15,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:16:15,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:16:15,949 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2023-11-19 04:16:15,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:16:15,949 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:16:15,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:16:15,949 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:16:15,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:16:15,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-19 04:16:15,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-19 04:16:15,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-19 04:16:15,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-19 04:16:15,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-19 04:16:15,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-19 04:16:15,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-19 04:16:15,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-19 04:16:15,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-19 04:16:15,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-19 04:16:15,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-19 04:16:15,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-19 04:16:15,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-19 04:16:15,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-19 04:16:15,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-19 04:16:15,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:16:15,958 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 04:16:15,963 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 04:16:15,963 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:16:15,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:16:15 BasicIcfg [2023-11-19 04:16:15,967 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:16:15,967 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:16:15,967 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:16:15,968 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:16:15,968 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:16:02" (3/4) ... [2023-11-19 04:16:15,970 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:16:15,973 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 04:16:15,973 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 04:16:15,973 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 04:16:15,981 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-19 04:16:15,981 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:16:15,981 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 04:16:15,982 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:16:16,090 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:16:16,090 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:16:16,090 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:16:16,091 INFO L158 Benchmark]: Toolchain (without parser) took 15582.03ms. Allocated memory was 172.0MB in the beginning and 216.0MB in the end (delta: 44.0MB). Free memory was 141.7MB in the beginning and 75.2MB in the end (delta: 66.5MB). Peak memory consumption was 109.9MB. Max. memory is 16.1GB. [2023-11-19 04:16:16,091 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:16:16,092 INFO L158 Benchmark]: CACSL2BoogieTranslator took 659.64ms. Allocated memory is still 172.0MB. Free memory was 141.5MB in the beginning and 121.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2023-11-19 04:16:16,092 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.49ms. Allocated memory is still 172.0MB. Free memory was 121.3MB in the beginning and 118.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:16:16,092 INFO L158 Benchmark]: Boogie Preprocessor took 82.06ms. Allocated memory is still 172.0MB. Free memory was 118.7MB in the beginning and 116.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:16:16,093 INFO L158 Benchmark]: RCFGBuilder took 1259.85ms. Allocated memory is still 172.0MB. Free memory was 116.6MB in the beginning and 74.5MB in the end (delta: 42.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-19 04:16:16,094 INFO L158 Benchmark]: TraceAbstraction took 13324.66ms. Allocated memory was 172.0MB in the beginning and 216.0MB in the end (delta: 44.0MB). Free memory was 138.3MB in the beginning and 80.5MB in the end (delta: 57.8MB). Peak memory consumption was 100.1MB. Max. memory is 16.1GB. [2023-11-19 04:16:16,097 INFO L158 Benchmark]: Witness Printer took 123.05ms. Allocated memory is still 216.0MB. Free memory was 80.5MB in the beginning and 75.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 04:16:16,100 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 659.64ms. Allocated memory is still 172.0MB. Free memory was 141.5MB in the beginning and 121.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.49ms. Allocated memory is still 172.0MB. Free memory was 121.3MB in the beginning and 118.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.06ms. Allocated memory is still 172.0MB. Free memory was 118.7MB in the beginning and 116.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1259.85ms. Allocated memory is still 172.0MB. Free memory was 116.6MB in the beginning and 74.5MB in the end (delta: 42.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 13324.66ms. Allocated memory was 172.0MB in the beginning and 216.0MB in the end (delta: 44.0MB). Free memory was 138.3MB in the beginning and 80.5MB in the end (delta: 57.8MB). Peak memory consumption was 100.1MB. Max. memory is 16.1GB. * Witness Printer took 123.05ms. Allocated memory is still 216.0MB. Free memory was 80.5MB in the beginning and 75.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.3s, 145 PlacesBefore, 37 PlacesAfterwards, 138 TransitionsBefore, 28 TransitionsAfterwards, 2738 CoEnabledTransitionPairs, 8 FixpointIterations, 56 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 130 TotalNumberOfCompositions, 7071 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3602, independent: 3350, independent conditional: 0, independent unconditional: 3350, dependent: 252, dependent conditional: 0, dependent unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1840, independent: 1783, independent conditional: 0, independent unconditional: 1783, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1840, independent: 1748, independent conditional: 0, independent unconditional: 1748, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 92, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 914, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 841, dependent conditional: 0, dependent unconditional: 841, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3602, independent: 1567, independent conditional: 0, independent unconditional: 1567, dependent: 195, dependent conditional: 0, dependent unconditional: 195, unknown: 1840, unknown conditional: 0, unknown unconditional: 1840] , Statistics on independence cache: Total cache size (in pairs): 128, Positive cache size: 108, Positive conditional cache size: 0, Positive unconditional cache size: 108, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 168 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 13.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 204 IncrementalHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 0 mSDtfsCounter, 204 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=910occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 04:16:16,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b779f3f2-8c6b-44e2-afbf-5d0beec48f49/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE