./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.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_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 52ed361cdf08860b8c7c7d564ef95393de2d3a38663ac135cf0da9ded1f39b3f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:47:49,169 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:47:49,305 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:47:49,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:47:49,317 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:47:49,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:47:49,369 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:47:49,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:47:49,371 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:47:49,377 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:47:49,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:47:49,378 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:47:49,379 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:47:49,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:47:49,382 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:47:49,382 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:47:49,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:47:49,383 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:47:49,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:47:49,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:47:49,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:47:49,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:47:49,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:47:49,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:47:49,387 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:47:49,387 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:47:49,388 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:47:49,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:47:49,389 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:47:49,390 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:47:49,391 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:47:49,392 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:47:49,392 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:47:49,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:47:49,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:47:49,393 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:47:49,393 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:47:49,394 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:47:49,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:47:49,394 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:47:49,395 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:47:49,395 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:47:49,395 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:47:49,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:47:49,396 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52ed361cdf08860b8c7c7d564ef95393de2d3a38663ac135cf0da9ded1f39b3f [2023-11-26 11:47:49,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:47:49,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:47:49,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:47:49,771 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:47:49,771 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:47:49,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2023-11-26 11:47:52,909 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:47:53,272 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:47:53,272 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2023-11-26 11:47:53,297 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/data/cdb1da026/60e67dca5f444157a15f36fb72bedeff/FLAG9fe1f13d6 [2023-11-26 11:47:53,317 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/data/cdb1da026/60e67dca5f444157a15f36fb72bedeff [2023-11-26 11:47:53,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:47:53,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:47:53,334 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:47:53,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:47:53,341 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:47:53,342 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:47:53" (1/1) ... [2023-11-26 11:47:53,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441efcaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:53, skipping insertion in model container [2023-11-26 11:47:53,343 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:47:53" (1/1) ... [2023-11-26 11:47:53,405 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:47:53,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:47:53,905 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:47:54,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:47:54,075 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:47:54,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:54 WrapperNode [2023-11-26 11:47:54,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:47:54,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:47:54,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:47:54,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:47:54,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:54" (1/1) ... [2023-11-26 11:47:54,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:54" (1/1) ... [2023-11-26 11:47:54,168 INFO L138 Inliner]: procedures = 142, calls = 66, calls flagged for inlining = 14, calls inlined = 13, statements flattened = 187 [2023-11-26 11:47:54,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:47:54,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:47:54,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:47:54,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:47:54,184 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:54" (1/1) ... [2023-11-26 11:47:54,184 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:54" (1/1) ... [2023-11-26 11:47:54,190 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:54" (1/1) ... [2023-11-26 11:47:54,266 INFO L175 MemorySlicer]: Split 28 memory accesses to 2 slices as follows [2, 26]. 93 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4]. The 7 writes are split as follows [0, 7]. [2023-11-26 11:47:54,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:54" (1/1) ... [2023-11-26 11:47:54,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:54" (1/1) ... [2023-11-26 11:47:54,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:54" (1/1) ... [2023-11-26 11:47:54,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:54" (1/1) ... [2023-11-26 11:47:54,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:54" (1/1) ... [2023-11-26 11:47:54,313 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:54" (1/1) ... [2023-11-26 11:47:54,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:47:54,323 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:47:54,323 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:47:54,323 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:47:54,324 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:54" (1/1) ... [2023-11-26 11:47:54,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:47:54,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:54,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:54,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:47:54,403 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-26 11:47:54,403 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-26 11:47:54,404 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2023-11-26 11:47:54,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2023-11-26 11:47:54,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2023-11-26 11:47:54,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2023-11-26 11:47:54,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:47:54,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:47:54,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:47:54,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:47:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2023-11-26 11:47:54,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2023-11-26 11:47:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:47:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:47:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:47:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 11:47:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 11:47:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2023-11-26 11:47:54,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2023-11-26 11:47:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:47:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:47:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2023-11-26 11:47:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2023-11-26 11:47:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:47:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:47:54,631 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:47:54,634 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:47:55,044 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:47:55,120 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:47:55,121 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-26 11:47:55,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:47:55 BoogieIcfgContainer [2023-11-26 11:47:55,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:47:55,125 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:47:55,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:47:55,129 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:47:55,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:47:53" (1/3) ... [2023-11-26 11:47:55,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a9bf28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:47:55, skipping insertion in model container [2023-11-26 11:47:55,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:54" (2/3) ... [2023-11-26 11:47:55,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a9bf28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:47:55, skipping insertion in model container [2023-11-26 11:47:55,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:47:55" (3/3) ... [2023-11-26 11:47:55,133 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-2.i [2023-11-26 11:47:55,157 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:47:55,157 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 11:47:55,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:47:55,235 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=PETRI_NET, 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;@288b444, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:47:55,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 11:47:55,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 47 states have (on average 1.425531914893617) internal successors, (67), 49 states have internal predecessors, (67), 13 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 11:47:55,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 11:47:55,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:47:55,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:55,254 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 11:47:55,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:55,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1363446684, now seen corresponding path program 1 times [2023-11-26 11:47:55,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:55,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708093582] [2023-11-26 11:47:55,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:55,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:55,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:47:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:55,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:47:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:55,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:47:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:55,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:55,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:55,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708093582] [2023-11-26 11:47:55,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708093582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:55,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:55,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:47:55,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929639360] [2023-11-26 11:47:55,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:55,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:47:55,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:55,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:47:55,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:47:55,831 INFO L87 Difference]: Start difference. First operand has 69 states, 47 states have (on average 1.425531914893617) internal successors, (67), 49 states have internal predecessors, (67), 13 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:47:56,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:47:56,189 INFO L93 Difference]: Finished difference Result 132 states and 186 transitions. [2023-11-26 11:47:56,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:47:56,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2023-11-26 11:47:56,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:47:56,201 INFO L225 Difference]: With dead ends: 132 [2023-11-26 11:47:56,201 INFO L226 Difference]: Without dead ends: 20 [2023-11-26 11:47:56,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:47:56,215 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 22 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:47:56,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 121 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:47:56,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-26 11:47:56,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-26 11:47:56,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:47:56,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2023-11-26 11:47:56,265 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2023-11-26 11:47:56,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:47:56,266 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2023-11-26 11:47:56,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:47:56,267 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2023-11-26 11:47:56,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 11:47:56,273 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:47:56,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:56,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:47:56,274 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 11:47:56,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:56,280 INFO L85 PathProgramCache]: Analyzing trace with hash 776640670, now seen corresponding path program 1 times [2023-11-26 11:47:56,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:56,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944550668] [2023-11-26 11:47:56,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:56,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:56,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:47:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:56,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:47:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:56,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:47:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:56,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:56,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:56,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944550668] [2023-11-26 11:47:56,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944550668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:56,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:56,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:47:56,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180035287] [2023-11-26 11:47:56,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:56,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:47:56,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:56,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:47:56,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:47:56,646 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:47:56,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:47:56,817 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2023-11-26 11:47:56,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:47:56,818 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2023-11-26 11:47:56,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:47:56,819 INFO L225 Difference]: With dead ends: 29 [2023-11-26 11:47:56,819 INFO L226 Difference]: Without dead ends: 27 [2023-11-26 11:47:56,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:47:56,822 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:47:56,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 22 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:47:56,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-26 11:47:56,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-11-26 11:47:56,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 11:47:56,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2023-11-26 11:47:56,831 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 17 [2023-11-26 11:47:56,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:47:56,832 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2023-11-26 11:47:56,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:47:56,833 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2023-11-26 11:47:56,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-26 11:47:56,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:47:56,835 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-26 11:47:56,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:47:56,835 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 11:47:56,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:56,836 INFO L85 PathProgramCache]: Analyzing trace with hash -613718252, now seen corresponding path program 1 times [2023-11-26 11:47:56,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:56,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382542032] [2023-11-26 11:47:56,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:56,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:57,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:47:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:57,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:47:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:57,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:47:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:57,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 11:47:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:57,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:47:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:57,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:47:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:57,346 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-26 11:47:57,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:57,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382542032] [2023-11-26 11:47:57,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382542032] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:47:57,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265758295] [2023-11-26 11:47:57,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:57,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:47:57,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:57,358 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:47:57,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:47:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:57,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:47:57,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:47:57,687 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-26 11:47:57,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:47:57,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265758295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:57,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:47:57,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2023-11-26 11:47:57,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701929029] [2023-11-26 11:47:57,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:57,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:47:57,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:57,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:47:57,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:47:57,700 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-26 11:47:57,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:47:57,790 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2023-11-26 11:47:57,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:47:57,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 34 [2023-11-26 11:47:57,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:47:57,794 INFO L225 Difference]: With dead ends: 27 [2023-11-26 11:47:57,795 INFO L226 Difference]: Without dead ends: 26 [2023-11-26 11:47:57,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:47:57,799 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 9 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:47:57,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 40 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:47:57,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-26 11:47:57,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-11-26 11:47:57,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 11:47:57,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2023-11-26 11:47:57,818 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 34 [2023-11-26 11:47:57,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:47:57,818 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2023-11-26 11:47:57,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-26 11:47:57,819 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2023-11-26 11:47:57,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-26 11:47:57,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:47:57,822 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-26 11:47:57,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:47:58,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-26 11:47:58,036 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 11:47:58,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:58,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1845396551, now seen corresponding path program 1 times [2023-11-26 11:47:58,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:58,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047509722] [2023-11-26 11:47:58,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:58,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:58,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:47:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:58,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:47:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:58,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:47:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:58,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 11:47:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:58,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:47:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:58,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:47:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:58,304 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-26 11:47:58,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:58,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047509722] [2023-11-26 11:47:58,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047509722] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:47:58,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611220334] [2023-11-26 11:47:58,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:58,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:47:58,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:58,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:47:58,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:47:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:58,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:47:58,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:47:58,652 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-26 11:47:58,653 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:47:58,796 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-26 11:47:58,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611220334] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:47:58,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:47:58,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2023-11-26 11:47:58,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367749482] [2023-11-26 11:47:58,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:47:58,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 11:47:58,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:58,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 11:47:58,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:47:58,809 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 6 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-26 11:47:59,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:47:59,184 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2023-11-26 11:47:59,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-26 11:47:59,185 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 6 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 35 [2023-11-26 11:47:59,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:47:59,191 INFO L225 Difference]: With dead ends: 48 [2023-11-26 11:47:59,191 INFO L226 Difference]: Without dead ends: 47 [2023-11-26 11:47:59,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2023-11-26 11:47:59,194 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 17 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:47:59,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 37 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:47:59,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-26 11:47:59,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-26 11:47:59,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 32 states have (on average 1.03125) internal successors, (33), 32 states have internal predecessors, (33), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-26 11:47:59,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2023-11-26 11:47:59,227 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 35 [2023-11-26 11:47:59,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:47:59,229 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2023-11-26 11:47:59,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 6 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-26 11:47:59,231 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2023-11-26 11:47:59,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-26 11:47:59,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:47:59,243 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2023-11-26 11:47:59,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:47:59,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:47:59,452 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 11:47:59,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:59,453 INFO L85 PathProgramCache]: Analyzing trace with hash -2101877265, now seen corresponding path program 2 times [2023-11-26 11:47:59,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:59,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376753713] [2023-11-26 11:47:59,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:59,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:48:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:48:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:48:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 11:48:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:48:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:48:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:48:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 11:48:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:48:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 11:48:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 11:48:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:48:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 11:48:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-26 11:48:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:48:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,493 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-26 11:48:00,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:00,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376753713] [2023-11-26 11:48:00,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376753713] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:48:00,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821698955] [2023-11-26 11:48:00,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:48:00,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:00,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:00,496 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:48:00,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:48:00,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 11:48:00,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:48:00,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:48:00,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:48:00,960 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-26 11:48:00,961 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:48:01,156 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-26 11:48:01,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821698955] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:48:01,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:48:01,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2023-11-26 11:48:01,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736391985] [2023-11-26 11:48:01,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:48:01,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-26 11:48:01,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:01,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-26 11:48:01,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:48:01,161 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand has 17 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 8 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-11-26 11:48:01,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:01,691 INFO L93 Difference]: Finished difference Result 55 states and 66 transitions. [2023-11-26 11:48:01,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-26 11:48:01,692 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 8 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 86 [2023-11-26 11:48:01,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:01,693 INFO L225 Difference]: With dead ends: 55 [2023-11-26 11:48:01,693 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 11:48:01,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2023-11-26 11:48:01,696 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 23 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:01,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 31 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:48:01,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 11:48:01,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 11:48:01,697 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) [2023-11-26 11:48:01,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 11:48:01,698 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 86 [2023-11-26 11:48:01,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:01,698 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:48:01,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 8 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-11-26 11:48:01,698 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:48:01,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 11:48:01,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-26 11:48:01,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-26 11:48:01,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:48:01,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:48:01,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 11:48:02,129 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 566) no Hoare annotation was computed. [2023-11-26 11:48:02,130 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 566) the Hoare annotation is: true [2023-11-26 11:48:02,130 INFO L899 garLoopResultBuilder]: For program point L566-1(line 566) no Hoare annotation was computed. [2023-11-26 11:48:02,130 INFO L899 garLoopResultBuilder]: For program point ldv_list_addEXIT(lines 610 613) no Hoare annotation was computed. [2023-11-26 11:48:02,130 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 610 613) the Hoare annotation is: (and (= |old(#memory_$Pointer$#1.base)| |#memory_$Pointer$#1.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |old(#memory_$Pointer$#1.offset)| |#memory_$Pointer$#1.offset|)) [2023-11-26 11:48:02,131 INFO L895 garLoopResultBuilder]: At program point L612(line 612) the Hoare annotation is: (and (= |old(#memory_$Pointer$#1.base)| |#memory_$Pointer$#1.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |old(#memory_$Pointer$#1.offset)| |#memory_$Pointer$#1.offset|)) [2023-11-26 11:48:02,131 INFO L899 garLoopResultBuilder]: For program point L612-1(line 612) no Hoare annotation was computed. [2023-11-26 11:48:02,131 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 618 621) the Hoare annotation is: (and (= |old(#memory_$Pointer$#1.base)| |#memory_$Pointer$#1.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |old(#memory_$Pointer$#1.offset)| |#memory_$Pointer$#1.offset|)) [2023-11-26 11:48:02,131 INFO L899 garLoopResultBuilder]: For program point ldv_list_delEXIT(lines 618 621) no Hoare annotation was computed. [2023-11-26 11:48:02,131 INFO L899 garLoopResultBuilder]: For program point ldv_successful_mallocEXIT(lines 579 583) no Hoare annotation was computed. [2023-11-26 11:48:02,131 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 579 583) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2023-11-26 11:48:02,131 INFO L899 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2023-11-26 11:48:02,132 INFO L899 garLoopResultBuilder]: For program point L568(lines 568 570) no Hoare annotation was computed. [2023-11-26 11:48:02,132 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 596 604) the Hoare annotation is: (and (= |old(#memory_$Pointer$#1.base)| |#memory_$Pointer$#1.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |old(#memory_$Pointer$#1.offset)| |#memory_$Pointer$#1.offset|)) [2023-11-26 11:48:02,132 INFO L899 garLoopResultBuilder]: For program point __ldv_list_addEXIT(lines 596 604) no Hoare annotation was computed. [2023-11-26 11:48:02,132 INFO L899 garLoopResultBuilder]: For program point L680(lines 680 682) no Hoare annotation was computed. [2023-11-26 11:48:02,132 INFO L899 garLoopResultBuilder]: For program point L647(lines 647 656) no Hoare annotation was computed. [2023-11-26 11:48:02,132 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 693) no Hoare annotation was computed. [2023-11-26 11:48:02,132 INFO L899 garLoopResultBuilder]: For program point L639(lines 639 646) no Hoare annotation was computed. [2023-11-26 11:48:02,133 INFO L899 garLoopResultBuilder]: For program point L681(line 681) no Hoare annotation was computed. [2023-11-26 11:48:02,133 INFO L902 garLoopResultBuilder]: At program point L681-1(line 681) the Hoare annotation is: true [2023-11-26 11:48:02,133 INFO L899 garLoopResultBuilder]: For program point L681-2(line 681) no Hoare annotation was computed. [2023-11-26 11:48:02,133 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 693) no Hoare annotation was computed. [2023-11-26 11:48:02,133 INFO L902 garLoopResultBuilder]: At program point L673(line 673) the Hoare annotation is: true [2023-11-26 11:48:02,133 INFO L899 garLoopResultBuilder]: For program point L673-1(line 673) no Hoare annotation was computed. [2023-11-26 11:48:02,133 INFO L902 garLoopResultBuilder]: At program point L640(line 640) the Hoare annotation is: true [2023-11-26 11:48:02,133 INFO L899 garLoopResultBuilder]: For program point L673-2(line 673) no Hoare annotation was computed. [2023-11-26 11:48:02,134 INFO L899 garLoopResultBuilder]: For program point L640-1(line 640) no Hoare annotation was computed. [2023-11-26 11:48:02,134 INFO L902 garLoopResultBuilder]: At program point L673-3(line 673) the Hoare annotation is: true [2023-11-26 11:48:02,134 INFO L899 garLoopResultBuilder]: For program point L640-2(lines 640 645) no Hoare annotation was computed. [2023-11-26 11:48:02,134 INFO L899 garLoopResultBuilder]: For program point L673-4(line 673) no Hoare annotation was computed. [2023-11-26 11:48:02,134 INFO L899 garLoopResultBuilder]: For program point L673-6(line 673) no Hoare annotation was computed. [2023-11-26 11:48:02,134 INFO L902 garLoopResultBuilder]: At program point L698-2(lines 698 701) the Hoare annotation is: true [2023-11-26 11:48:02,134 INFO L899 garLoopResultBuilder]: For program point L698-3(lines 698 701) no Hoare annotation was computed. [2023-11-26 11:48:02,134 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 11:48:02,135 INFO L899 garLoopResultBuilder]: For program point L650-2(lines 650 655) no Hoare annotation was computed. [2023-11-26 11:48:02,135 INFO L902 garLoopResultBuilder]: At program point L650-3(lines 650 655) the Hoare annotation is: true [2023-11-26 11:48:02,141 INFO L902 garLoopResultBuilder]: At program point L642(line 642) the Hoare annotation is: true [2023-11-26 11:48:02,142 INFO L899 garLoopResultBuilder]: For program point L642-1(line 642) no Hoare annotation was computed. [2023-11-26 11:48:02,142 INFO L902 garLoopResultBuilder]: At program point L700(line 700) the Hoare annotation is: true [2023-11-26 11:48:02,142 INFO L899 garLoopResultBuilder]: For program point L700-1(lines 698 701) no Hoare annotation was computed. [2023-11-26 11:48:02,142 INFO L899 garLoopResultBuilder]: For program point L651(lines 651 654) no Hoare annotation was computed. [2023-11-26 11:48:02,142 INFO L899 garLoopResultBuilder]: For program point L693-2(line 693) no Hoare annotation was computed. [2023-11-26 11:48:02,143 INFO L899 garLoopResultBuilder]: For program point L693-3(line 693) no Hoare annotation was computed. [2023-11-26 11:48:02,143 INFO L895 garLoopResultBuilder]: At program point L693-4(lines 693 696) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_foo_~N~0#1| 2147483647))) (or (and .cse0 (<= 1 |ULTIMATE.start_foo_~i~0#1|)) (and (= |ULTIMATE.start_foo_~i~0#1| 0) .cse0))) [2023-11-26 11:48:02,146 INFO L899 garLoopResultBuilder]: For program point L693-5(lines 693 696) no Hoare annotation was computed. [2023-11-26 11:48:02,146 INFO L902 garLoopResultBuilder]: At program point L652(line 652) the Hoare annotation is: true [2023-11-26 11:48:02,147 INFO L899 garLoopResultBuilder]: For program point L652-1(line 652) no Hoare annotation was computed. [2023-11-26 11:48:02,148 INFO L902 garLoopResultBuilder]: At program point L677(line 677) the Hoare annotation is: true [2023-11-26 11:48:02,148 INFO L902 garLoopResultBuilder]: At program point L644(line 644) the Hoare annotation is: true [2023-11-26 11:48:02,148 INFO L899 garLoopResultBuilder]: For program point L677-1(line 677) no Hoare annotation was computed. [2023-11-26 11:48:02,148 INFO L899 garLoopResultBuilder]: For program point L644-1(line 644) no Hoare annotation was computed. [2023-11-26 11:48:02,149 INFO L899 garLoopResultBuilder]: For program point L677-2(line 677) no Hoare annotation was computed. [2023-11-26 11:48:02,149 INFO L902 garLoopResultBuilder]: At program point L677-3(line 677) the Hoare annotation is: true [2023-11-26 11:48:02,149 INFO L899 garLoopResultBuilder]: For program point L677-4(line 677) no Hoare annotation was computed. [2023-11-26 11:48:02,149 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 11:48:02,149 INFO L899 garLoopResultBuilder]: For program point L677-6(line 677) no Hoare annotation was computed. [2023-11-26 11:48:02,150 INFO L902 garLoopResultBuilder]: At program point L702-3(lines 702 704) the Hoare annotation is: true [2023-11-26 11:48:02,150 INFO L899 garLoopResultBuilder]: For program point L702-4(lines 702 704) no Hoare annotation was computed. [2023-11-26 11:48:02,150 INFO L895 garLoopResultBuilder]: At program point L694(line 694) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_foo_~N~0#1| 2147483647))) (or (and (<= |ULTIMATE.start_foo_~i~0#1| 2147483646) .cse0 (<= 1 |ULTIMATE.start_foo_~i~0#1|)) (and (= |ULTIMATE.start_foo_~i~0#1| 0) .cse0))) [2023-11-26 11:48:02,150 INFO L899 garLoopResultBuilder]: For program point L694-1(line 694) no Hoare annotation was computed. [2023-11-26 11:48:02,150 INFO L895 garLoopResultBuilder]: At program point L695(line 695) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_foo_~N~0#1| 2147483647))) (or (and (<= |ULTIMATE.start_foo_~i~0#1| 2147483646) .cse0 (<= 1 |ULTIMATE.start_foo_~i~0#1|)) (and (= |ULTIMATE.start_foo_~i~0#1| 0) .cse0))) [2023-11-26 11:48:02,151 INFO L899 garLoopResultBuilder]: For program point L695-1(lines 693 696) no Hoare annotation was computed. [2023-11-26 11:48:02,151 INFO L899 garLoopResultBuilder]: For program point ldv_is_in_setEXIT(lines 657 665) no Hoare annotation was computed. [2023-11-26 11:48:02,151 INFO L899 garLoopResultBuilder]: For program point ldv_is_in_setFINAL(lines 657 665) no Hoare annotation was computed. [2023-11-26 11:48:02,152 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 662) no Hoare annotation was computed. [2023-11-26 11:48:02,152 INFO L902 garLoopResultBuilder]: At program point L659-3(lines 659 663) the Hoare annotation is: true [2023-11-26 11:48:02,152 INFO L899 garLoopResultBuilder]: For program point L659-4(lines 659 663) no Hoare annotation was computed. [2023-11-26 11:48:02,152 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 657 665) the Hoare annotation is: true [2023-11-26 11:48:02,157 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-11-26 11:48:02,159 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:48:02,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:48:02 BoogieIcfgContainer [2023-11-26 11:48:02,176 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:48:02,177 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:48:02,177 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:48:02,177 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:48:02,178 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:47:55" (3/4) ... [2023-11-26 11:48:02,181 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:48:02,185 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reach_error [2023-11-26 11:48:02,186 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_add [2023-11-26 11:48:02,186 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_is_in_set [2023-11-26 11:48:02,186 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_del [2023-11-26 11:48:02,187 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_successful_malloc [2023-11-26 11:48:02,187 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __ldv_list_add [2023-11-26 11:48:02,206 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-11-26 11:48:02,207 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-26 11:48:02,208 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-26 11:48:02,208 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:48:02,396 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:48:02,397 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:48:02,397 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:48:02,398 INFO L158 Benchmark]: Toolchain (without parser) took 9067.48ms. Allocated memory was 190.8MB in the beginning and 264.2MB in the end (delta: 73.4MB). Free memory was 158.5MB in the beginning and 93.6MB in the end (delta: 64.9MB). Peak memory consumption was 140.1MB. Max. memory is 16.1GB. [2023-11-26 11:48:02,398 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 190.8MB. Free memory is still 164.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:48:02,399 INFO L158 Benchmark]: CACSL2BoogieTranslator took 741.40ms. Allocated memory is still 190.8MB. Free memory was 158.5MB in the beginning and 137.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-26 11:48:02,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.88ms. Allocated memory is still 190.8MB. Free memory was 137.5MB in the beginning and 135.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:48:02,400 INFO L158 Benchmark]: Boogie Preprocessor took 150.07ms. Allocated memory is still 190.8MB. Free memory was 135.2MB in the beginning and 129.1MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:48:02,400 INFO L158 Benchmark]: RCFGBuilder took 799.17ms. Allocated memory is still 190.8MB. Free memory was 128.4MB in the beginning and 99.8MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-26 11:48:02,401 INFO L158 Benchmark]: TraceAbstraction took 7051.16ms. Allocated memory was 190.8MB in the beginning and 264.2MB in the end (delta: 73.4MB). Free memory was 99.0MB in the beginning and 101.0MB in the end (delta: -2.0MB). Peak memory consumption was 73.0MB. Max. memory is 16.1GB. [2023-11-26 11:48:02,402 INFO L158 Benchmark]: Witness Printer took 220.15ms. Allocated memory is still 264.2MB. Free memory was 101.0MB in the beginning and 93.6MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 11:48:02,405 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 190.8MB. Free memory is still 164.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 741.40ms. Allocated memory is still 190.8MB. Free memory was 158.5MB in the beginning and 137.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.88ms. Allocated memory is still 190.8MB. Free memory was 137.5MB in the beginning and 135.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 150.07ms. Allocated memory is still 190.8MB. Free memory was 135.2MB in the beginning and 129.1MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 799.17ms. Allocated memory is still 190.8MB. Free memory was 128.4MB in the beginning and 99.8MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7051.16ms. Allocated memory was 190.8MB in the beginning and 264.2MB in the end (delta: 73.4MB). Free memory was 99.0MB in the beginning and 101.0MB in the end (delta: -2.0MB). Peak memory consumption was 73.0MB. Max. memory is 16.1GB. * Witness Printer took 220.15ms. Allocated memory is still 264.2MB. Free memory was 101.0MB in the beginning and 93.6MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: 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 7 procedures, 69 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81 mSDsluCounter, 251 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 161 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 464 IncrementalHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 90 mSDtfsCounter, 464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 386 GetRequests, 320 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=0, InterpolantAutomatonStates: 49, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 67 PreInvPairs, 99 NumberOfFragments, 114 HoareAnnotationTreeSize, 67 FomulaSimplifications, 36 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 121 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 344 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 455 ConstructedInterpolants, 0 QuantifiedInterpolants, 1077 SizeOfPredicates, 7 NumberOfNonLiveVariables, 867 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 448/593 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 2 specifications checked. All of them hold - InvariantResult [Line: 650]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 693]: Loop Invariant Derived loop invariant: (((N <= 2147483647) && (1 <= i)) || ((i == 0) && (N <= 2147483647))) - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 659]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 698]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-26 11:48:02,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ba8b9d-4f15-46fe-b13c-6151831b587c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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