./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/test-hard1.wvr.c --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_0fd374e2-a587-41e4-bd9b-2675eceddd08/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd374e2-a587-41e4-bd9b-2675eceddd08/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_0fd374e2-a587-41e4-bd9b-2675eceddd08/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd374e2-a587-41e4-bd9b-2675eceddd08/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/test-hard1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd374e2-a587-41e4-bd9b-2675eceddd08/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_0fd374e2-a587-41e4-bd9b-2675eceddd08/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 34f393fd72a97393a0a39d407b9330aa7c1c7e210ad76310ea88c9427f882106 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:13:50,014 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:13:50,135 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd374e2-a587-41e4-bd9b-2675eceddd08/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 00:13:50,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:13:50,144 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:13:50,185 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:13:50,186 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:13:50,186 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:13:50,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:13:50,193 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:13:50,193 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:13:50,193 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:13:50,194 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:13:50,194 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:13:50,195 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:13:50,195 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:13:50,196 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:13:50,196 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:13:50,196 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:13:50,197 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:13:50,199 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:13:50,199 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:13:50,200 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:13:50,201 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:13:50,201 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:13:50,202 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:13:50,202 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:13:50,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:13:50,203 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:13:50,204 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:13:50,205 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:13:50,205 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:13:50,206 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:13:50,206 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:13:50,206 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:13:50,206 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:13:50,207 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:13:50,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:13:50,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:13:50,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:13:50,208 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:13:50,208 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:13:50,209 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:13:50,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:13:50,209 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:13:50,209 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:13:50,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:13:50,210 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_0fd374e2-a587-41e4-bd9b-2675eceddd08/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd374e2-a587-41e4-bd9b-2675eceddd08/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34f393fd72a97393a0a39d407b9330aa7c1c7e210ad76310ea88c9427f882106 [2023-11-12 00:13:50,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:13:50,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:13:50,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:13:50,575 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:13:50,577 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:13:50,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd374e2-a587-41e4-bd9b-2675eceddd08/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/test-hard1.wvr.c [2023-11-12 00:13:53,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:13:53,867 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:13:53,868 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd374e2-a587-41e4-bd9b-2675eceddd08/sv-benchmarks/c/weaver/test-hard1.wvr.c [2023-11-12 00:13:53,876 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd374e2-a587-41e4-bd9b-2675eceddd08/bin/utaipan-verify-NcY6lQBIFX/data/f22173712/a51bd7e0aa86453fb3b03dd2aaa174c4/FLAG31be5d5f8 [2023-11-12 00:13:53,891 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd374e2-a587-41e4-bd9b-2675eceddd08/bin/utaipan-verify-NcY6lQBIFX/data/f22173712/a51bd7e0aa86453fb3b03dd2aaa174c4 [2023-11-12 00:13:53,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:13:53,895 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:13:53,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:13:53,897 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:13:53,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:13:53,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:53" (1/1) ... [2023-11-12 00:13:53,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@385d37ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:53, skipping insertion in model container [2023-11-12 00:13:53,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:53" (1/1) ... [2023-11-12 00:13:53,946 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:13:54,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:13:54,241 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:13:54,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:13:54,313 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:54,313 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:54,321 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:13:54,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:54 WrapperNode [2023-11-12 00:13:54,322 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:13:54,324 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:13:54,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:13:54,325 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:13:54,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:54" (1/1) ... [2023-11-12 00:13:54,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:54" (1/1) ... [2023-11-12 00:13:54,392 INFO L138 Inliner]: procedures = 24, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 99 [2023-11-12 00:13:54,393 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:13:54,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:13:54,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:13:54,395 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:13:54,405 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:54" (1/1) ... [2023-11-12 00:13:54,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:54" (1/1) ... [2023-11-12 00:13:54,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:54" (1/1) ... [2023-11-12 00:13:54,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:54" (1/1) ... [2023-11-12 00:13:54,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:54" (1/1) ... [2023-11-12 00:13:54,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:54" (1/1) ... [2023-11-12 00:13:54,448 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:54" (1/1) ... [2023-11-12 00:13:54,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:54" (1/1) ... [2023-11-12 00:13:54,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:13:54,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:13:54,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:13:54,463 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:13:54,464 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:54" (1/1) ... [2023-11-12 00:13:54,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:13:54,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd374e2-a587-41e4-bd9b-2675eceddd08/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:13:54,510 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd374e2-a587-41e4-bd9b-2675eceddd08/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:13:54,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd374e2-a587-41e4-bd9b-2675eceddd08/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:13:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:13:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 00:13:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 00:13:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 00:13:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 00:13:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 00:13:54,559 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 00:13:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-12 00:13:54,561 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-12 00:13:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:13:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:13:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:13:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:13:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:13:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:13:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:13:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:13:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:13:54,566 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 00:13:54,721 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:13:54,723 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:13:55,060 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:13:55,159 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:13:55,159 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 00:13:55,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:55 BoogieIcfgContainer [2023-11-12 00:13:55,162 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:13:55,165 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:13:55,165 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:13:55,169 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:13:55,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:13:53" (1/3) ... [2023-11-12 00:13:55,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1075f884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:55, skipping insertion in model container [2023-11-12 00:13:55,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:54" (2/3) ... [2023-11-12 00:13:55,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1075f884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:55, skipping insertion in model container [2023-11-12 00:13:55,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:55" (3/3) ... [2023-11-12 00:13:55,173 INFO L112 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2023-11-12 00:13:55,185 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:13:55,197 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:13:55,198 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-12 00:13:55,198 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:13:55,379 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-12 00:13:55,426 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:13:55,447 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 150 transitions, 328 flow [2023-11-12 00:13:55,457 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 150 transitions, 328 flow [2023-11-12 00:13:55,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 150 transitions, 328 flow [2023-11-12 00:13:55,584 INFO L124 PetriNetUnfolderBase]: 10/146 cut-off events. [2023-11-12 00:13:55,584 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-12 00:13:55,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 146 events. 10/146 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 118 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2023-11-12 00:13:55,598 INFO L119 LiptonReduction]: Number of co-enabled transitions 2904 [2023-11-12 00:14:01,296 INFO L134 LiptonReduction]: Checked pairs total: 5449 [2023-11-12 00:14:01,296 INFO L136 LiptonReduction]: Total number of compositions: 129 [2023-11-12 00:14:01,304 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 45 transitions, 118 flow [2023-11-12 00:14:01,579 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3618 states, 3538 states have (on average 4.402204635387225) internal successors, (15575), 3617 states have internal predecessors, (15575), 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 00:14:01,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:14:01,605 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;@674091cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:14:01,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-12 00:14:01,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 3618 states, 3538 states have (on average 4.402204635387225) internal successors, (15575), 3617 states have internal predecessors, (15575), 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 00:14:01,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:14:01,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:01,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:14:01,629 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 00:14:01,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:01,634 INFO L85 PathProgramCache]: Analyzing trace with hash 19169567, now seen corresponding path program 1 times [2023-11-12 00:14:01,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:01,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685443376] [2023-11-12 00:14:01,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:01,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:01,868 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 00:14:01,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:01,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685443376] [2023-11-12 00:14:01,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685443376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:01,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:14:01,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:14:01,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769289775] [2023-11-12 00:14:01,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:01,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:14:01,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:01,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:14:01,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:14:01,927 INFO L87 Difference]: Start difference. First operand has 3618 states, 3538 states have (on average 4.402204635387225) internal successors, (15575), 3617 states have internal predecessors, (15575), 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 2 states, 1 states have (on average 4.0) 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 00:14:02,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:14:02,087 INFO L93 Difference]: Finished difference Result 1864 states and 7940 transitions. [2023-11-12 00:14:02,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:14:02,091 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) 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 00:14:02,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:14:02,144 INFO L225 Difference]: With dead ends: 1864 [2023-11-12 00:14:02,146 INFO L226 Difference]: Without dead ends: 1864 [2023-11-12 00:14:02,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:14:02,151 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:14:02,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:14:02,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2023-11-12 00:14:02,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1864. [2023-11-12 00:14:02,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1864 states, 1849 states have (on average 4.29421308815576) internal successors, (7940), 1863 states have internal predecessors, (7940), 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 00:14:02,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 7940 transitions. [2023-11-12 00:14:02,318 INFO L78 Accepts]: Start accepts. Automaton has 1864 states and 7940 transitions. Word has length 4 [2023-11-12 00:14:02,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:02,320 INFO L495 AbstractCegarLoop]: Abstraction has 1864 states and 7940 transitions. [2023-11-12 00:14:02,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) 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 00:14:02,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1864 states and 7940 transitions. [2023-11-12 00:14:02,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:14:02,321 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:02,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:14:02,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:14:02,322 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 00:14:02,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:02,323 INFO L85 PathProgramCache]: Analyzing trace with hash 19169568, now seen corresponding path program 1 times [2023-11-12 00:14:02,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:02,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779421506] [2023-11-12 00:14:02,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:02,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:02,529 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 00:14:02,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:02,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779421506] [2023-11-12 00:14:02,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779421506] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:02,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:14:02,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:14:02,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545067391] [2023-11-12 00:14:02,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:02,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:14:02,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:02,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:14:02,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:14:02,533 INFO L87 Difference]: Start difference. First operand 1864 states and 7940 transitions. 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 00:14:02,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:14:02,668 INFO L93 Difference]: Finished difference Result 1254 states and 5297 transitions. [2023-11-12 00:14:02,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:14:02,669 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 00:14:02,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:14:02,685 INFO L225 Difference]: With dead ends: 1254 [2023-11-12 00:14:02,685 INFO L226 Difference]: Without dead ends: 1218 [2023-11-12 00:14:02,686 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 00:14:02,687 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:14:02,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 2 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:14:02,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2023-11-12 00:14:02,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1218. [2023-11-12 00:14:02,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 1215 states have (on average 4.22880658436214) internal successors, (5138), 1217 states have internal predecessors, (5138), 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 00:14:02,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 5138 transitions. [2023-11-12 00:14:02,751 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 5138 transitions. Word has length 4 [2023-11-12 00:14:02,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:02,752 INFO L495 AbstractCegarLoop]: Abstraction has 1218 states and 5138 transitions. [2023-11-12 00:14:02,752 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 00:14:02,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 5138 transitions. [2023-11-12 00:14:02,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:14:02,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:02,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:14:02,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:14:02,754 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-12 00:14:02,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:02,755 INFO L85 PathProgramCache]: Analyzing trace with hash 880646333, now seen corresponding path program 1 times [2023-11-12 00:14:02,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:02,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417266789] [2023-11-12 00:14:02,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:02,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:02,838 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 00:14:02,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:02,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417266789] [2023-11-12 00:14:02,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417266789] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:02,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:14:02,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:14:02,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746531202] [2023-11-12 00:14:02,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:02,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:14:02,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:02,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:14:02,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:14:02,841 INFO L87 Difference]: Start difference. First operand 1218 states and 5138 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 00:14:02,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:14:02,911 INFO L93 Difference]: Finished difference Result 806 states and 3368 transitions. [2023-11-12 00:14:02,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:14:02,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 00:14:02,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:14:02,913 INFO L225 Difference]: With dead ends: 806 [2023-11-12 00:14:02,913 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:14:02,914 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 00:14:02,918 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:14:02,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:14:02,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:14:02,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:14:02,921 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 00:14:02,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:14:02,921 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2023-11-12 00:14:02,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:02,922 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:14:02,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 00:14:02,922 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:14:02,922 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:14:02,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-12 00:14:02,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-12 00:14:02,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-12 00:14:02,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-12 00:14:02,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-12 00:14:02,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-12 00:14:02,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 20 remaining) [2023-11-12 00:14:02,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 20 remaining) [2023-11-12 00:14:02,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-12 00:14:02,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-12 00:14:02,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2023-11-12 00:14:02,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2023-11-12 00:14:02,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-12 00:14:02,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-12 00:14:02,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-12 00:14:02,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-12 00:14:02,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-12 00:14:02,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-12 00:14:02,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-12 00:14:02,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-12 00:14:02,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:14:02,945 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-12 00:14:02,951 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 00:14:02,951 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:14:02,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:14:02 BasicIcfg [2023-11-12 00:14:02,959 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:14:02,960 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:14:02,960 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:14:02,961 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:14:02,961 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:55" (3/4) ... [2023-11-12 00:14:02,965 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:14:02,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-12 00:14:02,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-12 00:14:02,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-12 00:14:02,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2023-11-12 00:14:02,979 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-12 00:14:02,980 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 00:14:02,980 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:14:02,980 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:14:03,064 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd374e2-a587-41e4-bd9b-2675eceddd08/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:14:03,065 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd374e2-a587-41e4-bd9b-2675eceddd08/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:14:03,065 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:14:03,066 INFO L158 Benchmark]: Toolchain (without parser) took 9170.58ms. Allocated memory was 169.9MB in the beginning and 213.9MB in the end (delta: 44.0MB). Free memory was 126.7MB in the beginning and 113.1MB in the end (delta: 13.5MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2023-11-12 00:14:03,066 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 127.9MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:14:03,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.22ms. Allocated memory is still 169.9MB. Free memory was 126.1MB in the beginning and 114.1MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:14:03,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.82ms. Allocated memory is still 169.9MB. Free memory was 114.1MB in the beginning and 112.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:14:03,068 INFO L158 Benchmark]: Boogie Preprocessor took 65.26ms. Allocated memory is still 169.9MB. Free memory was 112.4MB in the beginning and 110.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:14:03,068 INFO L158 Benchmark]: RCFGBuilder took 702.40ms. Allocated memory is still 169.9MB. Free memory was 110.9MB in the beginning and 86.3MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-12 00:14:03,069 INFO L158 Benchmark]: TraceAbstraction took 7793.57ms. Allocated memory was 169.9MB in the beginning and 213.9MB in the end (delta: 44.0MB). Free memory was 85.2MB in the beginning and 118.4MB in the end (delta: -33.2MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2023-11-12 00:14:03,069 INFO L158 Benchmark]: Witness Printer took 105.37ms. Allocated memory is still 213.9MB. Free memory was 118.4MB in the beginning and 113.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:14:03,071 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 127.9MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 426.22ms. Allocated memory is still 169.9MB. Free memory was 126.1MB in the beginning and 114.1MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.82ms. Allocated memory is still 169.9MB. Free memory was 114.1MB in the beginning and 112.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.26ms. Allocated memory is still 169.9MB. Free memory was 112.4MB in the beginning and 110.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 702.40ms. Allocated memory is still 169.9MB. Free memory was 110.9MB in the beginning and 86.3MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 7793.57ms. Allocated memory was 169.9MB in the beginning and 213.9MB in the end (delta: 44.0MB). Free memory was 85.2MB in the beginning and 118.4MB in the end (delta: -33.2MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * Witness Printer took 105.37ms. Allocated memory is still 213.9MB. Free memory was 118.4MB in the beginning and 113.1MB 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: 5.8s, 153 PlacesBefore, 54 PlacesAfterwards, 150 TransitionsBefore, 45 TransitionsAfterwards, 2904 CoEnabledTransitionPairs, 7 FixpointIterations, 65 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 8 ConcurrentYvCompositions, 6 ChoiceCompositions, 129 TotalNumberOfCompositions, 5449 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4359, independent: 4297, independent conditional: 0, independent unconditional: 4297, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1752, independent: 1739, independent conditional: 0, independent unconditional: 1739, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1752, independent: 1735, independent conditional: 0, independent unconditional: 1735, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 125, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4359, independent: 2558, independent conditional: 0, independent unconditional: 2558, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 1752, unknown conditional: 0, unknown unconditional: 1752] , Statistics on independence cache: Total cache size (in pairs): 287, Positive cache size: 280, Positive conditional cache size: 0, Positive unconditional cache size: 280, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, 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: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: 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, 185 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 7.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 8 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3618occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 00:14:03,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd374e2-a587-41e4-bd9b-2675eceddd08/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE