./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh --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 9a8131f8693d82039b4018f716a17d0a3e1038ace11c7bb21b12bc911efac3c1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:43:18,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:43:19,031 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 17:43:19,036 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:43:19,037 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:43:19,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:43:19,060 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:43:19,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:43:19,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:43:19,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:43:19,062 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:43:19,062 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:43:19,063 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:43:19,063 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:43:19,064 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:43:19,064 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:43:19,065 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:43:19,065 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:43:19,066 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:43:19,066 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:43:19,067 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:43:19,068 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:43:19,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:43:19,069 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:43:19,069 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:43:19,070 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:43:19,070 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:43:19,071 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:43:19,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:43:19,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:43:19,072 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:43:19,072 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 17:43:19,072 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 17:43:19,073 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:43:19,073 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:43:19,073 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:43:19,073 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:43:19,074 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:43:19,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:43:19,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:43:19,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:43:19,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:43:19,075 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:43:19,075 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:43:19,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:43:19,075 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:43:19,076 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:43:19,076 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:43:19,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:43:19,076 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_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a8131f8693d82039b4018f716a17d0a3e1038ace11c7bb21b12bc911efac3c1 [2023-12-02 17:43:19,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:43:19,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:43:19,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:43:19,351 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:43:19,352 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:43:19,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i [2023-12-02 17:43:22,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:43:22,345 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:43:22,346 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i [2023-12-02 17:43:22,362 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/data/19d89fbba/a022c8a5f5c84749b9561dfd9b111b2a/FLAG2efd487da [2023-12-02 17:43:22,377 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/data/19d89fbba/a022c8a5f5c84749b9561dfd9b111b2a [2023-12-02 17:43:22,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:43:22,381 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:43:22,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:43:22,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:43:22,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:43:22,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:43:22" (1/1) ... [2023-12-02 17:43:22,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46bd01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:22, skipping insertion in model container [2023-12-02 17:43:22,391 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:43:22" (1/1) ... [2023-12-02 17:43:22,445 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:43:22,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:43:22,801 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:43:22,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:43:22,888 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:43:22,888 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:43:22,896 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:43:22,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:22 WrapperNode [2023-12-02 17:43:22,897 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:43:22,898 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:43:22,898 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:43:22,898 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:43:22,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:22" (1/1) ... [2023-12-02 17:43:22,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:22" (1/1) ... [2023-12-02 17:43:22,956 INFO L138 Inliner]: procedures = 177, calls = 68, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 167 [2023-12-02 17:43:22,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:43:22,957 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:43:22,957 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:43:22,958 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:43:22,967 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:22" (1/1) ... [2023-12-02 17:43:22,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:22" (1/1) ... [2023-12-02 17:43:22,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:22" (1/1) ... [2023-12-02 17:43:22,973 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:22" (1/1) ... [2023-12-02 17:43:22,984 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:22" (1/1) ... [2023-12-02 17:43:22,986 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:22" (1/1) ... [2023-12-02 17:43:22,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:22" (1/1) ... [2023-12-02 17:43:22,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:22" (1/1) ... [2023-12-02 17:43:22,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:43:22,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:43:22,997 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:43:22,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:43:22,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:22" (1/1) ... [2023-12-02 17:43:23,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:43:23,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:43:23,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:43:23,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:43:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 17:43:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 17:43:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:43:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 17:43:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 17:43:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-02 17:43:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-02 17:43:23,060 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-02 17:43:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-02 17:43:23,060 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-02 17:43:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-02 17:43:23,060 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-12-02 17:43:23,061 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-12-02 17:43:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:43:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 17:43:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:43:23,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:43:23,063 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 17:43:23,189 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:43:23,191 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:43:23,507 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:43:23,742 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:43:23,742 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 17:43:23,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:43:23 BoogieIcfgContainer [2023-12-02 17:43:23,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:43:23,745 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:43:23,745 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:43:23,747 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:43:23,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:43:22" (1/3) ... [2023-12-02 17:43:23,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7612ad8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:43:23, skipping insertion in model container [2023-12-02 17:43:23,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:43:22" (2/3) ... [2023-12-02 17:43:23,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7612ad8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:43:23, skipping insertion in model container [2023-12-02 17:43:23,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:43:23" (3/3) ... [2023-12-02 17:43:23,750 INFO L112 eAbstractionObserver]: Analyzing ICFG mix053_tso.oepc.i [2023-12-02 17:43:23,759 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 17:43:23,767 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:43:23,767 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-12-02 17:43:23,767 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 17:43:23,816 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 17:43:23,844 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 50 transitions, 116 flow [2023-12-02 17:43:25,714 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 47455 states, 47375 states have (on average 4.389445910290237) internal successors, (207950), 47454 states have internal predecessors, (207950), 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) [2023-12-02 17:43:25,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:43:25,742 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;@4257190e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:43:25,742 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-12-02 17:43:25,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 47455 states, 47375 states have (on average 4.389445910290237) internal successors, (207950), 47454 states have internal predecessors, (207950), 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) [2023-12-02 17:43:25,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 17:43:25,879 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:43:25,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:43:25,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-12-02 17:43:25,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:43:25,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1003005496, now seen corresponding path program 1 times [2023-12-02 17:43:25,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:43:25,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694510031] [2023-12-02 17:43:25,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:43:25,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:43:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:43:26,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:43:26,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:43:26,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694510031] [2023-12-02 17:43:26,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694510031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:43:26,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:43:26,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 17:43:26,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795310547] [2023-12-02 17:43:26,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:43:26,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:43:26,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:43:26,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:43:26,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:43:26,265 INFO L87 Difference]: Start difference. First operand has 47455 states, 47375 states have (on average 4.389445910290237) internal successors, (207950), 47454 states have internal predecessors, (207950), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-12-02 17:43:27,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:43:27,151 INFO L93 Difference]: Finished difference Result 34535 states and 145670 transitions. [2023-12-02 17:43:27,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:43:27,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-12-02 17:43:27,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:43:27,660 INFO L225 Difference]: With dead ends: 34535 [2023-12-02 17:43:27,660 INFO L226 Difference]: Without dead ends: 34535 [2023-12-02 17:43:27,662 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 [2023-12-02 17:43:27,666 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 24 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:43:27,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 24 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:43:27,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34535 states. [2023-12-02 17:43:29,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34535 to 34535. [2023-12-02 17:43:29,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34535 states, 34471 states have (on average 4.2258710220185085) internal successors, (145670), 34534 states have internal predecessors, (145670), 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) [2023-12-02 17:43:29,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34535 states to 34535 states and 145670 transitions. [2023-12-02 17:43:29,863 INFO L78 Accepts]: Start accepts. Automaton has 34535 states and 145670 transitions. Word has length 7 [2023-12-02 17:43:29,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:43:29,863 INFO L495 AbstractCegarLoop]: Abstraction has 34535 states and 145670 transitions. [2023-12-02 17:43:29,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-12-02 17:43:29,864 INFO L276 IsEmpty]: Start isEmpty. Operand 34535 states and 145670 transitions. [2023-12-02 17:43:29,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 17:43:29,873 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:43:29,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:43:29,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:43:29,874 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-12-02 17:43:29,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:43:29,875 INFO L85 PathProgramCache]: Analyzing trace with hash 647628883, now seen corresponding path program 1 times [2023-12-02 17:43:29,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:43:29,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650111771] [2023-12-02 17:43:29,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:43:29,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:43:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:43:29,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:43:29,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:43:29,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650111771] [2023-12-02 17:43:29,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650111771] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:43:29,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:43:29,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:43:30,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154245987] [2023-12-02 17:43:30,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:43:30,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:43:30,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:43:30,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:43:30,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:43:30,003 INFO L87 Difference]: Start difference. First operand 34535 states and 145670 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:43:30,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:43:30,448 INFO L93 Difference]: Finished difference Result 24827 states and 104868 transitions. [2023-12-02 17:43:30,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:43:30,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-12-02 17:43:30,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:43:30,623 INFO L225 Difference]: With dead ends: 24827 [2023-12-02 17:43:30,623 INFO L226 Difference]: Without dead ends: 24827 [2023-12-02 17:43:30,623 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 [2023-12-02 17:43:30,625 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 54 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:43:30,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 48 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:43:30,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24827 states. [2023-12-02 17:43:31,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24827 to 24827. [2023-12-02 17:43:31,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24827 states, 24813 states have (on average 4.2263329706202395) internal successors, (104868), 24826 states have internal predecessors, (104868), 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) [2023-12-02 17:43:31,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24827 states to 24827 states and 104868 transitions. [2023-12-02 17:43:31,916 INFO L78 Accepts]: Start accepts. Automaton has 24827 states and 104868 transitions. Word has length 14 [2023-12-02 17:43:31,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:43:31,917 INFO L495 AbstractCegarLoop]: Abstraction has 24827 states and 104868 transitions. [2023-12-02 17:43:31,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:43:31,918 INFO L276 IsEmpty]: Start isEmpty. Operand 24827 states and 104868 transitions. [2023-12-02 17:43:31,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 17:43:31,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:43:31,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:43:31,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 17:43:31,923 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-12-02 17:43:31,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:43:31,924 INFO L85 PathProgramCache]: Analyzing trace with hash 647628884, now seen corresponding path program 1 times [2023-12-02 17:43:31,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:43:31,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514857734] [2023-12-02 17:43:31,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:43:31,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:43:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:43:32,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:43:32,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:43:32,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514857734] [2023-12-02 17:43:32,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514857734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:43:32,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:43:32,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:43:32,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130799773] [2023-12-02 17:43:32,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:43:32,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:43:32,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:43:32,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:43:32,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:43:32,023 INFO L87 Difference]: Start difference. First operand 24827 states and 104868 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:43:32,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:43:32,419 INFO L93 Difference]: Finished difference Result 19591 states and 82182 transitions. [2023-12-02 17:43:32,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:43:32,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-12-02 17:43:32,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:43:32,647 INFO L225 Difference]: With dead ends: 19591 [2023-12-02 17:43:32,647 INFO L226 Difference]: Without dead ends: 19591 [2023-12-02 17:43:32,648 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 [2023-12-02 17:43:32,649 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 68 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:43:32,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 36 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:43:32,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19591 states. [2023-12-02 17:43:33,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19591 to 19591. [2023-12-02 17:43:33,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19591 states, 19581 states have (on average 4.197027730963689) internal successors, (82182), 19590 states have internal predecessors, (82182), 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) [2023-12-02 17:43:33,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19591 states to 19591 states and 82182 transitions. [2023-12-02 17:43:33,359 INFO L78 Accepts]: Start accepts. Automaton has 19591 states and 82182 transitions. Word has length 14 [2023-12-02 17:43:33,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:43:33,360 INFO L495 AbstractCegarLoop]: Abstraction has 19591 states and 82182 transitions. [2023-12-02 17:43:33,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:43:33,360 INFO L276 IsEmpty]: Start isEmpty. Operand 19591 states and 82182 transitions. [2023-12-02 17:43:33,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 17:43:33,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:43:33,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:43:33,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 17:43:33,384 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-12-02 17:43:33,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:43:33,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1561284393, now seen corresponding path program 1 times [2023-12-02 17:43:33,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:43:33,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707714436] [2023-12-02 17:43:33,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:43:33,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:43:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:43:33,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:43:33,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:43:33,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707714436] [2023-12-02 17:43:33,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707714436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:43:33,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:43:33,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:43:33,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435813529] [2023-12-02 17:43:33,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:43:33,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:43:33,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:43:33,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:43:33,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:43:33,511 INFO L87 Difference]: Start difference. First operand 19591 states and 82182 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2023-12-02 17:43:33,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:43:33,954 INFO L93 Difference]: Finished difference Result 17719 states and 74982 transitions. [2023-12-02 17:43:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 17:43:33,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2023-12-02 17:43:33,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:43:34,019 INFO L225 Difference]: With dead ends: 17719 [2023-12-02 17:43:34,019 INFO L226 Difference]: Without dead ends: 17719 [2023-12-02 17:43:34,020 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 [2023-12-02 17:43:34,021 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 107 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:43:34,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 48 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:43:34,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17719 states. [2023-12-02 17:43:34,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17719 to 17719. [2023-12-02 17:43:34,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17719 states, 17715 states have (on average 4.23268416596105) internal successors, (74982), 17718 states have internal predecessors, (74982), 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) [2023-12-02 17:43:34,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17719 states to 17719 states and 74982 transitions. [2023-12-02 17:43:34,597 INFO L78 Accepts]: Start accepts. Automaton has 17719 states and 74982 transitions. Word has length 21 [2023-12-02 17:43:34,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:43:34,597 INFO L495 AbstractCegarLoop]: Abstraction has 17719 states and 74982 transitions. [2023-12-02 17:43:34,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2023-12-02 17:43:34,598 INFO L276 IsEmpty]: Start isEmpty. Operand 17719 states and 74982 transitions. [2023-12-02 17:43:34,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 17:43:34,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:43:34,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:43:34,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 17:43:34,651 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-12-02 17:43:34,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:43:34,651 INFO L85 PathProgramCache]: Analyzing trace with hash -978937572, now seen corresponding path program 1 times [2023-12-02 17:43:34,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:43:34,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038850160] [2023-12-02 17:43:34,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:43:34,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:43:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:43:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:43:34,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:43:34,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038850160] [2023-12-02 17:43:34,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038850160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:43:34,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:43:34,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 17:43:34,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766166056] [2023-12-02 17:43:34,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:43:34,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:43:34,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:43:34,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:43:34,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 17:43:34,808 INFO L87 Difference]: Start difference. First operand 17719 states and 74982 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2023-12-02 17:43:35,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:43:35,312 INFO L93 Difference]: Finished difference Result 17495 states and 74230 transitions. [2023-12-02 17:43:35,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:43:35,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 28 [2023-12-02 17:43:35,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:43:35,313 INFO L225 Difference]: With dead ends: 17495 [2023-12-02 17:43:35,314 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 17:43:35,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 17:43:35,315 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 131 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:43:35,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 48 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:43:35,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 17:43:35,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 17:43:35,317 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) [2023-12-02 17:43:35,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 17:43:35,317 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2023-12-02 17:43:35,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:43:35,317 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 17:43:35,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2023-12-02 17:43:35,318 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 17:43:35,318 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 17:43:35,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-12-02 17:43:35,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-12-02 17:43:35,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-12-02 17:43:35,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-12-02 17:43:35,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-12-02 17:43:35,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-12-02 17:43:35,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-12-02 17:43:35,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-12-02 17:43:35,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-12-02 17:43:35,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-12-02 17:43:35,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-12-02 17:43:35,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-12-02 17:43:35,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-12-02 17:43:35,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-12-02 17:43:35,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-12-02 17:43:35,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-12-02 17:43:35,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-12-02 17:43:35,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-12-02 17:43:35,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-12-02 17:43:35,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-12-02 17:43:35,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 17:43:35,328 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-02 17:43:35,332 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-02 17:43:35,332 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 17:43:35,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:43:35 BasicIcfg [2023-12-02 17:43:35,335 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 17:43:35,336 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 17:43:35,336 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 17:43:35,336 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 17:43:35,337 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:43:23" (3/4) ... [2023-12-02 17:43:35,338 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 17:43:35,340 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-12-02 17:43:35,341 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-12-02 17:43:35,341 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-12-02 17:43:35,341 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-12-02 17:43:35,348 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 103 nodes and edges [2023-12-02 17:43:35,349 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-12-02 17:43:35,349 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 17:43:35,349 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-12-02 17:43:35,430 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 17:43:35,431 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 17:43:35,431 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 17:43:35,432 INFO L158 Benchmark]: Toolchain (without parser) took 13050.84ms. Allocated memory was 159.4MB in the beginning and 6.2GB in the end (delta: 6.1GB). Free memory was 120.9MB in the beginning and 5.3GB in the end (delta: -5.1GB). Peak memory consumption was 928.5MB. Max. memory is 16.1GB. [2023-12-02 17:43:35,432 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:43:35,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.64ms. Allocated memory is still 159.4MB. Free memory was 120.6MB in the beginning and 111.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 17:43:35,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.56ms. Allocated memory is still 159.4MB. Free memory was 111.1MB in the beginning and 108.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 17:43:35,434 INFO L158 Benchmark]: Boogie Preprocessor took 39.14ms. Allocated memory is still 159.4MB. Free memory was 108.3MB in the beginning and 106.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 17:43:35,434 INFO L158 Benchmark]: RCFGBuilder took 745.48ms. Allocated memory is still 159.4MB. Free memory was 106.2MB in the beginning and 106.2MB in the end (delta: -42.5kB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-12-02 17:43:35,435 INFO L158 Benchmark]: TraceAbstraction took 11590.62ms. Allocated memory was 159.4MB in the beginning and 6.2GB in the end (delta: 6.1GB). Free memory was 105.5MB in the beginning and 5.3GB in the end (delta: -5.2GB). Peak memory consumption was 908.7MB. Max. memory is 16.1GB. [2023-12-02 17:43:35,435 INFO L158 Benchmark]: Witness Printer took 95.38ms. Allocated memory is still 6.2GB. Free memory was 5.3GB in the beginning and 5.3GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 17:43:35,437 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.64ms. Allocated memory is still 159.4MB. Free memory was 120.6MB in the beginning and 111.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.56ms. Allocated memory is still 159.4MB. Free memory was 111.1MB in the beginning and 108.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.14ms. Allocated memory is still 159.4MB. Free memory was 108.3MB in the beginning and 106.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 745.48ms. Allocated memory is still 159.4MB. Free memory was 106.2MB in the beginning and 106.2MB in the end (delta: -42.5kB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11590.62ms. Allocated memory was 159.4MB in the beginning and 6.2GB in the end (delta: 6.1GB). Free memory was 105.5MB in the beginning and 5.3GB in the end (delta: -5.2GB). Peak memory consumption was 908.7MB. Max. memory is 16.1GB. * Witness Printer took 95.38ms. Allocated memory is still 6.2GB. Free memory was 5.3GB in the beginning and 5.3GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 776]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 776]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 826]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 826]: 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, 91 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 11.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 384 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 384 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 132 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 438 IncrementalHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 72 mSDtfsCounter, 438 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47455occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 237 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-02 17:43:35,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e685abdd-f566-474a-bbce-6e792cf7b219/bin/utaipan-verify-nQ1chXbOIh/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