./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire --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 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:18:57,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:18:57,195 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-23 21:18:57,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:18:57,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:18:57,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:18:57,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:18:57,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:18:57,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:18:57,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:18:57,258 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:18:57,259 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:18:57,260 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:18:57,262 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:18:57,262 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:18:57,263 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:18:57,263 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:18:57,264 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:18:57,264 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:18:57,265 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:18:57,265 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:18:57,266 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:18:57,268 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:18:57,268 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:18:57,269 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:18:57,269 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:18:57,269 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:18:57,270 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:18:57,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:18:57,271 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:18:57,272 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:18:57,272 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:18:57,273 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:18:57,273 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:18:57,273 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:18:57,273 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:18:57,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:18:57,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:18:57,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:18:57,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:57,274 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:18:57,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:18:57,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:18:57,275 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:18:57,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:18:57,276 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:18:57,277 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:18:57,277 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:18:57,278 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:18:57,278 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_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 [2023-11-23 21:18:57,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:18:57,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:18:57,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:18:57,713 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:18:57,714 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:18:57,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2023-11-23 21:19:01,075 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:19:01,398 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:19:01,399 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2023-11-23 21:19:01,421 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/data/892ef5aed/de8cfed52481487bb029027d0b2450aa/FLAGc3a3941d6 [2023-11-23 21:19:01,440 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/data/892ef5aed/de8cfed52481487bb029027d0b2450aa [2023-11-23 21:19:01,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:19:01,448 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:19:01,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:19:01,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:19:01,459 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:19:01,460 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:01" (1/1) ... [2023-11-23 21:19:01,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7563c160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:01, skipping insertion in model container [2023-11-23 21:19:01,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:01" (1/1) ... [2023-11-23 21:19:01,565 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:19:02,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:19:02,379 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:19:02,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:19:02,601 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:19:02,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:02 WrapperNode [2023-11-23 21:19:02,602 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:19:02,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:19:02,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:19:02,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:19:02,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:02" (1/1) ... [2023-11-23 21:19:02,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:02" (1/1) ... [2023-11-23 21:19:02,724 INFO L138 Inliner]: procedures = 177, calls = 238, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 967 [2023-11-23 21:19:02,725 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:19:02,726 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:19:02,726 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:19:02,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:19:02,737 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:02" (1/1) ... [2023-11-23 21:19:02,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:02" (1/1) ... [2023-11-23 21:19:02,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:02" (1/1) ... [2023-11-23 21:19:02,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:02" (1/1) ... [2023-11-23 21:19:02,800 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:02" (1/1) ... [2023-11-23 21:19:02,812 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:02" (1/1) ... [2023-11-23 21:19:02,817 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:02" (1/1) ... [2023-11-23 21:19:02,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:02" (1/1) ... [2023-11-23 21:19:02,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:19:02,837 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:19:02,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:19:02,837 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:19:02,838 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:02" (1/1) ... [2023-11-23 21:19:02,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:19:02,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:19:02,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:19:02,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:19:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:19:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:19:02,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:19:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:19:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:19:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:19:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:19:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:19:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:19:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:19:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:19:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:19:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:19:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:19:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:19:03,261 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:19:03,264 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:19:04,780 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:19:05,802 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:19:05,802 INFO L309 CfgBuilder]: Removed 40 assume(true) statements. [2023-11-23 21:19:05,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:05 BoogieIcfgContainer [2023-11-23 21:19:05,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:19:05,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:19:05,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:19:05,811 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:19:05,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:19:01" (1/3) ... [2023-11-23 21:19:05,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41155433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:05, skipping insertion in model container [2023-11-23 21:19:05,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:02" (2/3) ... [2023-11-23 21:19:05,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41155433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:05, skipping insertion in model container [2023-11-23 21:19:05,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:05" (3/3) ... [2023-11-23 21:19:05,814 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test1-2.i [2023-11-23 21:19:05,836 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:19:05,836 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-23 21:19:05,909 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:19:05,917 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;@327a3b57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:19:05,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-23 21:19:05,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 86 states have (on average 1.755813953488372) internal successors, (151), 102 states have internal predecessors, (151), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 21:19:05,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-23 21:19:05,929 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:05,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-23 21:19:05,931 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:19:05,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:05,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1033039, now seen corresponding path program 1 times [2023-11-23 21:19:05,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:05,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455235940] [2023-11-23 21:19:05,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:05,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:06,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:19:06,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:06,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455235940] [2023-11-23 21:19:06,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455235940] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:06,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:06,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:19:06,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190313631] [2023-11-23 21:19:06,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:06,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:19:06,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:06,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:19:06,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:19:06,236 INFO L87 Difference]: Start difference. First operand has 108 states, 86 states have (on average 1.755813953488372) internal successors, (151), 102 states have internal predecessors, (151), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-23 21:19:08,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:10,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:12,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-23 21:19:12,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:12,067 INFO L93 Difference]: Finished difference Result 214 states and 353 transitions. [2023-11-23 21:19:12,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:19:12,073 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2023-11-23 21:19:12,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:12,080 INFO L225 Difference]: With dead ends: 214 [2023-11-23 21:19:12,081 INFO L226 Difference]: Without dead ends: 91 [2023-11-23 21:19:12,084 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 [2023-11-23 21:19:12,088 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:12,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2023-11-23 21:19:12,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-23 21:19:12,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-23 21:19:12,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 71 states have (on average 1.3098591549295775) internal successors, (93), 85 states have internal predecessors, (93), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 21:19:12,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2023-11-23 21:19:12,139 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 3 [2023-11-23 21:19:12,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:12,140 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2023-11-23 21:19:12,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-23 21:19:12,140 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2023-11-23 21:19:12,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 21:19:12,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:12,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 21:19:12,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:19:12,142 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:19:12,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:12,143 INFO L85 PathProgramCache]: Analyzing trace with hash 32271221, now seen corresponding path program 1 times [2023-11-23 21:19:12,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:12,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738150055] [2023-11-23 21:19:12,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:12,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:12,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:19:12,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:12,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738150055] [2023-11-23 21:19:12,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738150055] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:12,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:12,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:19:12,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722596123] [2023-11-23 21:19:12,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:12,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:19:12,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:12,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:19:12,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:19:12,199 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) 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) [2023-11-23 21:19:14,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:16,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:18,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:19,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:19,418 INFO L93 Difference]: Finished difference Result 238 states and 303 transitions. [2023-11-23 21:19:19,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:19:19,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) 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 [2023-11-23 21:19:19,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:19,426 INFO L225 Difference]: With dead ends: 238 [2023-11-23 21:19:19,426 INFO L226 Difference]: Without dead ends: 147 [2023-11-23 21:19:19,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:19:19,429 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 60 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:19,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 195 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2023-11-23 21:19:19,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-23 21:19:19,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 98. [2023-11-23 21:19:19,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 78 states have (on average 1.294871794871795) internal successors, (101), 92 states have internal predecessors, (101), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 21:19:19,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 127 transitions. [2023-11-23 21:19:19,465 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 127 transitions. Word has length 4 [2023-11-23 21:19:19,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:19,466 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 127 transitions. [2023-11-23 21:19:19,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) 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) [2023-11-23 21:19:19,469 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 127 transitions. [2023-11-23 21:19:19,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 21:19:19,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:19,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 21:19:19,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:19:19,472 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:19:19,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash 32024268, now seen corresponding path program 1 times [2023-11-23 21:19:19,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:19,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089548374] [2023-11-23 21:19:19,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:19,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:19,499 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:19:19,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1658619823] [2023-11-23 21:19:19,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:19,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:19:19,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:19:19,502 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:19:19,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:19:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:19,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:19:19,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:19:19,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:19:19,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:19:19,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:19,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089548374] [2023-11-23 21:19:19,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:19:19,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658619823] [2023-11-23 21:19:19,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658619823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:19,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:19,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:19:19,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536745826] [2023-11-23 21:19:19,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:19,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:19:19,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:19,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:19:19,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:19:19,722 INFO L87 Difference]: Start difference. First operand 98 states and 127 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) [2023-11-23 21:19:21,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:23,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:23,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:23,812 INFO L93 Difference]: Finished difference Result 101 states and 131 transitions. [2023-11-23 21:19:23,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:19:23,818 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 [2023-11-23 21:19:23,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:23,819 INFO L225 Difference]: With dead ends: 101 [2023-11-23 21:19:23,819 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:19:23,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:19:23,821 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:23,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-23 21:19:23,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:19:23,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:19:23,822 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) [2023-11-23 21:19:23,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:19:23,823 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2023-11-23 21:19:23,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:23,823 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:19:23,823 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) [2023-11-23 21:19:23,823 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:19:23,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:19:23,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-23 21:19:23,834 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-23 21:19:23,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-23 21:19:23,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-23 21:19:23,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-23 21:19:23,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-23 21:19:23,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:19:24,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:19:24,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:19:24,128 INFO L899 garLoopResultBuilder]: For program point #Ultimate.C_memsetEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:19:24,131 INFO L902 garLoopResultBuilder]: At program point L-1-1(line -1) the Hoare annotation is: true [2023-11-23 21:19:24,132 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-11-23 21:19:24,132 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 750) no Hoare annotation was computed. [2023-11-23 21:19:24,134 INFO L899 garLoopResultBuilder]: For program point L757-170(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,134 INFO L895 garLoopResultBuilder]: At program point L757-171(line 757) the Hoare annotation is: (= |ULTIMATE.start_main_~i~0#1| 0) [2023-11-23 21:19:24,134 INFO L899 garLoopResultBuilder]: For program point L757-172(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,135 INFO L899 garLoopResultBuilder]: For program point L757-173(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,135 INFO L895 garLoopResultBuilder]: At program point L757-174(line 757) the Hoare annotation is: (= |ULTIMATE.start_main_~i~0#1| 0) [2023-11-23 21:19:24,135 INFO L899 garLoopResultBuilder]: For program point L757-175(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,135 INFO L895 garLoopResultBuilder]: At program point L757-176(line 757) the Hoare annotation is: (= |ULTIMATE.start_main_~i~0#1| 0) [2023-11-23 21:19:24,135 INFO L899 garLoopResultBuilder]: For program point L757-178(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,136 INFO L899 garLoopResultBuilder]: For program point L757-180(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,136 INFO L895 garLoopResultBuilder]: At program point L757-182(line 757) the Hoare annotation is: false [2023-11-23 21:19:24,136 INFO L899 garLoopResultBuilder]: For program point L757-183(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,136 INFO L899 garLoopResultBuilder]: For program point L757-184(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,136 INFO L895 garLoopResultBuilder]: At program point L757-186(line 757) the Hoare annotation is: false [2023-11-23 21:19:24,136 INFO L899 garLoopResultBuilder]: For program point L757-187(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,137 INFO L899 garLoopResultBuilder]: For program point L757-188(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,137 INFO L895 garLoopResultBuilder]: At program point L757-189(line 757) the Hoare annotation is: false [2023-11-23 21:19:24,137 INFO L899 garLoopResultBuilder]: For program point L757-190(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,137 INFO L899 garLoopResultBuilder]: For program point L757-193(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,137 INFO L895 garLoopResultBuilder]: At program point L757-194(line 757) the Hoare annotation is: false [2023-11-23 21:19:24,137 INFO L902 garLoopResultBuilder]: At program point L763-9(lines 763 766) the Hoare annotation is: true [2023-11-23 21:19:24,138 INFO L899 garLoopResultBuilder]: For program point L757-202(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,138 INFO L895 garLoopResultBuilder]: At program point L757-203(line 757) the Hoare annotation is: false [2023-11-23 21:19:24,139 INFO L899 garLoopResultBuilder]: For program point L757-210(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,139 INFO L899 garLoopResultBuilder]: For program point L757-212(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,139 INFO L895 garLoopResultBuilder]: At program point L757-214(line 757) the Hoare annotation is: false [2023-11-23 21:19:24,139 INFO L899 garLoopResultBuilder]: For program point L757-215(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,139 INFO L899 garLoopResultBuilder]: For program point L764-3(line 764) no Hoare annotation was computed. [2023-11-23 21:19:24,140 INFO L899 garLoopResultBuilder]: For program point L757-225(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,140 INFO L899 garLoopResultBuilder]: For program point L764-8(line 764) no Hoare annotation was computed. [2023-11-23 21:19:24,140 INFO L899 garLoopResultBuilder]: For program point L764-11(line 764) no Hoare annotation was computed. [2023-11-23 21:19:24,140 INFO L902 garLoopResultBuilder]: At program point L764-12(line 764) the Hoare annotation is: true [2023-11-23 21:19:24,140 INFO L899 garLoopResultBuilder]: For program point L764-13(line 764) no Hoare annotation was computed. [2023-11-23 21:19:24,140 INFO L899 garLoopResultBuilder]: For program point L757-235(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,141 INFO L895 garLoopResultBuilder]: At program point L757-236(line 757) the Hoare annotation is: false [2023-11-23 21:19:24,141 INFO L899 garLoopResultBuilder]: For program point L757-237(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,141 INFO L899 garLoopResultBuilder]: For program point L764-22(line 764) no Hoare annotation was computed. [2023-11-23 21:19:24,141 INFO L902 garLoopResultBuilder]: At program point L764-23(line 764) the Hoare annotation is: true [2023-11-23 21:19:24,141 INFO L895 garLoopResultBuilder]: At program point L757-246(line 757) the Hoare annotation is: false [2023-11-23 21:19:24,141 INFO L895 garLoopResultBuilder]: At program point L757-248(line 757) the Hoare annotation is: false [2023-11-23 21:19:24,142 INFO L899 garLoopResultBuilder]: For program point L757-249(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,143 INFO L899 garLoopResultBuilder]: For program point L764-34(line 764) no Hoare annotation was computed. [2023-11-23 21:19:24,143 INFO L902 garLoopResultBuilder]: At program point L764-35(line 764) the Hoare annotation is: true [2023-11-23 21:19:24,145 INFO L899 garLoopResultBuilder]: For program point L764-36(line 764) no Hoare annotation was computed. [2023-11-23 21:19:24,146 INFO L899 garLoopResultBuilder]: For program point L764-37(line 764) no Hoare annotation was computed. [2023-11-23 21:19:24,146 INFO L899 garLoopResultBuilder]: For program point L757-255(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,146 INFO L899 garLoopResultBuilder]: For program point L764-38(line 764) no Hoare annotation was computed. [2023-11-23 21:19:24,146 INFO L899 garLoopResultBuilder]: For program point L757-256(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,146 INFO L902 garLoopResultBuilder]: At program point L764-39(line 764) the Hoare annotation is: true [2023-11-23 21:19:24,147 INFO L895 garLoopResultBuilder]: At program point L757-257(line 757) the Hoare annotation is: false [2023-11-23 21:19:24,147 INFO L899 garLoopResultBuilder]: For program point L764-40(line 764) no Hoare annotation was computed. [2023-11-23 21:19:24,147 INFO L899 garLoopResultBuilder]: For program point L757-259(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,147 INFO L899 garLoopResultBuilder]: For program point L757-260(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,147 INFO L895 garLoopResultBuilder]: At program point L757-261(line 757) the Hoare annotation is: false [2023-11-23 21:19:24,147 INFO L899 garLoopResultBuilder]: For program point L757-262(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,148 INFO L899 garLoopResultBuilder]: For program point L757-263(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,148 INFO L895 garLoopResultBuilder]: At program point L757-264(line 757) the Hoare annotation is: false [2023-11-23 21:19:24,148 INFO L899 garLoopResultBuilder]: For program point L757-265(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,148 INFO L895 garLoopResultBuilder]: At program point L757-266(line 757) the Hoare annotation is: false [2023-11-23 21:19:24,149 INFO L899 garLoopResultBuilder]: For program point L757-267(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,149 INFO L899 garLoopResultBuilder]: For program point L757-268(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,149 INFO L895 garLoopResultBuilder]: At program point L757-269(line 757) the Hoare annotation is: (= |ULTIMATE.start_main_~i~0#1| 0) [2023-11-23 21:19:24,149 INFO L899 garLoopResultBuilder]: For program point L708(line 708) no Hoare annotation was computed. [2023-11-23 21:19:24,149 INFO L899 garLoopResultBuilder]: For program point L708-1(line 708) no Hoare annotation was computed. [2023-11-23 21:19:24,150 INFO L899 garLoopResultBuilder]: For program point L708-2(lines 708 739) no Hoare annotation was computed. [2023-11-23 21:19:24,150 INFO L899 garLoopResultBuilder]: For program point L709(line 709) no Hoare annotation was computed. [2023-11-23 21:19:24,150 INFO L895 garLoopResultBuilder]: At program point L710(line 710) the Hoare annotation is: false [2023-11-23 21:19:24,150 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 708) no Hoare annotation was computed. [2023-11-23 21:19:24,151 INFO L899 garLoopResultBuilder]: For program point L712(line 712) no Hoare annotation was computed. [2023-11-23 21:19:24,152 INFO L895 garLoopResultBuilder]: At program point L713(line 713) the Hoare annotation is: false [2023-11-23 21:19:24,152 INFO L899 garLoopResultBuilder]: For program point L715(line 715) no Hoare annotation was computed. [2023-11-23 21:19:24,153 INFO L895 garLoopResultBuilder]: At program point L716(line 716) the Hoare annotation is: false [2023-11-23 21:19:24,156 INFO L899 garLoopResultBuilder]: For program point L718(line 718) no Hoare annotation was computed. [2023-11-23 21:19:24,157 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:19:24,157 INFO L895 garLoopResultBuilder]: At program point L719(line 719) the Hoare annotation is: false [2023-11-23 21:19:24,157 INFO L899 garLoopResultBuilder]: For program point L721(line 721) no Hoare annotation was computed. [2023-11-23 21:19:24,157 INFO L895 garLoopResultBuilder]: At program point L722(line 722) the Hoare annotation is: false [2023-11-23 21:19:24,158 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 756) no Hoare annotation was computed. [2023-11-23 21:19:24,158 INFO L899 garLoopResultBuilder]: For program point L724(line 724) no Hoare annotation was computed. [2023-11-23 21:19:24,158 INFO L895 garLoopResultBuilder]: At program point L725(line 725) the Hoare annotation is: false [2023-11-23 21:19:24,160 INFO L899 garLoopResultBuilder]: For program point L727(line 727) no Hoare annotation was computed. [2023-11-23 21:19:24,160 INFO L895 garLoopResultBuilder]: At program point L728(line 728) the Hoare annotation is: false [2023-11-23 21:19:24,160 INFO L899 garLoopResultBuilder]: For program point L730(line 730) no Hoare annotation was computed. [2023-11-23 21:19:24,161 INFO L895 garLoopResultBuilder]: At program point L731(line 731) the Hoare annotation is: false [2023-11-23 21:19:24,161 INFO L899 garLoopResultBuilder]: For program point L733(line 733) no Hoare annotation was computed. [2023-11-23 21:19:24,161 INFO L895 garLoopResultBuilder]: At program point L734(line 734) the Hoare annotation is: false [2023-11-23 21:19:24,161 INFO L899 garLoopResultBuilder]: For program point L736(line 736) no Hoare annotation was computed. [2023-11-23 21:19:24,161 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 750) no Hoare annotation was computed. [2023-11-23 21:19:24,161 INFO L895 garLoopResultBuilder]: At program point L737(line 737) the Hoare annotation is: false [2023-11-23 21:19:24,162 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 708) no Hoare annotation was computed. [2023-11-23 21:19:24,162 INFO L899 garLoopResultBuilder]: For program point L750-2(lines 750 758) no Hoare annotation was computed. [2023-11-23 21:19:24,162 INFO L899 garLoopResultBuilder]: For program point L750-3(line 750) no Hoare annotation was computed. [2023-11-23 21:19:24,162 INFO L899 garLoopResultBuilder]: For program point L750-4(line 750) no Hoare annotation was computed. [2023-11-23 21:19:24,162 INFO L895 garLoopResultBuilder]: At program point L750-5(lines 750 758) the Hoare annotation is: (= |ULTIMATE.start_main_~i~0#1| 0) [2023-11-23 21:19:24,163 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 756) no Hoare annotation was computed. [2023-11-23 21:19:24,163 INFO L899 garLoopResultBuilder]: For program point L756(line 756) no Hoare annotation was computed. [2023-11-23 21:19:24,163 INFO L899 garLoopResultBuilder]: For program point L756-1(line 756) no Hoare annotation was computed. [2023-11-23 21:19:24,163 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:19:24,163 INFO L895 garLoopResultBuilder]: At program point L759-3(lines 759 761) the Hoare annotation is: false [2023-11-23 21:19:24,163 INFO L899 garLoopResultBuilder]: For program point L757-68(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,164 INFO L902 garLoopResultBuilder]: At program point L757-69(line 757) the Hoare annotation is: true [2023-11-23 21:19:24,164 INFO L899 garLoopResultBuilder]: For program point L757-70(line 757) no Hoare annotation was computed. [2023-11-23 21:19:24,164 INFO L895 garLoopResultBuilder]: At program point L757-71(line 757) the Hoare annotation is: (= |ULTIMATE.start_main_~i~0#1| 0) [2023-11-23 21:19:24,164 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 701 705) no Hoare annotation was computed. [2023-11-23 21:19:24,164 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 701 705) the Hoare annotation is: true [2023-11-23 21:19:24,169 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-23 21:19:24,172 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:19:24,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:19:24 BoogieIcfgContainer [2023-11-23 21:19:24,186 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:19:24,187 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:19:24,187 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:19:24,188 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:19:24,188 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:05" (3/4) ... [2023-11-23 21:19:24,190 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:19:24,193 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset [2023-11-23 21:19:24,197 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-23 21:19:24,257 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 157 nodes and edges [2023-11-23 21:19:24,259 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-23 21:19:24,261 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 21:19:24,262 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:19:24,440 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:19:24,441 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:19:24,441 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:19:24,442 INFO L158 Benchmark]: Toolchain (without parser) took 22993.98ms. Allocated memory was 161.5MB in the beginning and 218.1MB in the end (delta: 56.6MB). Free memory was 112.8MB in the beginning and 160.9MB in the end (delta: -48.1MB). Peak memory consumption was 115.8MB. Max. memory is 16.1GB. [2023-11-23 21:19:24,442 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 161.5MB. Free memory is still 132.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:19:24,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1151.04ms. Allocated memory is still 161.5MB. Free memory was 112.4MB in the beginning and 83.1MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-23 21:19:24,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.44ms. Allocated memory is still 161.5MB. Free memory was 83.1MB in the beginning and 76.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:19:24,443 INFO L158 Benchmark]: Boogie Preprocessor took 109.40ms. Allocated memory is still 161.5MB. Free memory was 76.8MB in the beginning and 69.7MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 21:19:24,444 INFO L158 Benchmark]: RCFGBuilder took 2967.83ms. Allocated memory was 161.5MB in the beginning and 218.1MB in the end (delta: 56.6MB). Free memory was 69.7MB in the beginning and 148.3MB in the end (delta: -78.6MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2023-11-23 21:19:24,444 INFO L158 Benchmark]: TraceAbstraction took 18379.48ms. Allocated memory is still 218.1MB. Free memory was 147.2MB in the beginning and 61.2MB in the end (delta: 86.0MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. [2023-11-23 21:19:24,444 INFO L158 Benchmark]: Witness Printer took 253.98ms. Allocated memory is still 218.1MB. Free memory was 61.2MB in the beginning and 160.9MB in the end (delta: -99.7MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2023-11-23 21:19:24,447 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 161.5MB. Free memory is still 132.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1151.04ms. Allocated memory is still 161.5MB. Free memory was 112.4MB in the beginning and 83.1MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.44ms. Allocated memory is still 161.5MB. Free memory was 83.1MB in the beginning and 76.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.40ms. Allocated memory is still 161.5MB. Free memory was 76.8MB in the beginning and 69.7MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2967.83ms. Allocated memory was 161.5MB in the beginning and 218.1MB in the end (delta: 56.6MB). Free memory was 69.7MB in the beginning and 148.3MB in the end (delta: -78.6MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. * TraceAbstraction took 18379.48ms. Allocated memory is still 218.1MB. Free memory was 147.2MB in the beginning and 61.2MB in the end (delta: 86.0MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. * Witness Printer took 253.98ms. Allocated memory is still 218.1MB. Free memory was 61.2MB in the beginning and 160.9MB in the end (delta: -99.7MB). Peak memory consumption was 5.2MB. 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: 750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 708]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 708]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 108 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 18.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 17.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 313 SdHoareTripleChecker+Invalid, 16.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 96 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 217 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred 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: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 49 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 84 PreInvPairs, 97 NumberOfFragments, 51 HoareAnnotationTreeSize, 84 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 39 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 53 ConjunctsInSsa, 3 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 6 specifications checked. All of them hold - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 763]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: (i == 0) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: (i == 0) - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: (i == 0) - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 759]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: (i == 0) - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: (i == 0) - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 750]: Loop Invariant Derived loop invariant: (i == 0) RESULT: Ultimate proved your program to be correct! [2023-11-23 21:19:24,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3394fda3-e841-4baf-97b4-7df432c415e3/bin/utaipan-verify-mE87zJ7Ire/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