./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/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_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl --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 0.2.3-dev-cf1a783 [2023-11-12 02:26:12,191 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:26:12,275 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:26:12,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:26:12,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:26:12,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:26:12,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:26:12,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:26:12,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:26:12,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:26:12,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:26:12,311 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:26:12,311 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:26:12,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:26:12,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:26:12,313 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:26:12,314 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:26:12,314 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:26:12,314 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:26:12,315 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:26:12,315 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:26:12,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:26:12,316 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:26:12,317 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:26:12,317 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:26:12,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:26:12,318 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:26:12,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:26:12,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:26:12,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:26:12,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:26:12,321 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:26:12,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:26:12,322 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:26:12,322 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:26:12,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:26:12,323 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:26:12,323 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:26:12,323 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:26:12,324 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:26:12,324 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:26:12,324 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_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52ed361cdf08860b8c7c7d564ef95393de2d3a38663ac135cf0da9ded1f39b3f [2023-11-12 02:26:12,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:26:12,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:26:12,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:26:12,697 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:26:12,698 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:26:12,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2023-11-12 02:26:15,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:26:16,312 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:26:16,313 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2023-11-12 02:26:16,342 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/data/06ce47b5b/cb577cd75b924828a7674cc31bd58797/FLAG87a36ec4b [2023-11-12 02:26:16,363 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/data/06ce47b5b/cb577cd75b924828a7674cc31bd58797 [2023-11-12 02:26:16,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:26:16,371 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:26:16,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:26:16,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:26:16,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:26:16,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:26:16" (1/1) ... [2023-11-12 02:26:16,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dea9ae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:16, skipping insertion in model container [2023-11-12 02:26:16,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:26:16" (1/1) ... [2023-11-12 02:26:16,457 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:26:16,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:26:16,935 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:26:17,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:26:17,106 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:26:17,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:17 WrapperNode [2023-11-12 02:26:17,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:26:17,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:26:17,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:26:17,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:26:17,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:17" (1/1) ... [2023-11-12 02:26:17,165 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:17" (1/1) ... [2023-11-12 02:26:17,198 INFO L138 Inliner]: procedures = 142, calls = 66, calls flagged for inlining = 14, calls inlined = 13, statements flattened = 187 [2023-11-12 02:26:17,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:26:17,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:26:17,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:26:17,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:26:17,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:17" (1/1) ... [2023-11-12 02:26:17,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:17" (1/1) ... [2023-11-12 02:26:17,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:17" (1/1) ... [2023-11-12 02:26:17,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:17" (1/1) ... [2023-11-12 02:26:17,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:17" (1/1) ... [2023-11-12 02:26:17,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:17" (1/1) ... [2023-11-12 02:26:17,243 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:17" (1/1) ... [2023-11-12 02:26:17,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:17" (1/1) ... [2023-11-12 02:26:17,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:26:17,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:26:17,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:26:17,265 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:26:17,266 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:17" (1/1) ... [2023-11-12 02:26:17,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:26:17,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:17,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:17,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:26:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-12 02:26:17,360 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-12 02:26:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2023-11-12 02:26:17,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2023-11-12 02:26:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2023-11-12 02:26:17,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2023-11-12 02:26:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:26:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:26:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:26:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2023-11-12 02:26:17,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2023-11-12 02:26:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:26:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:26:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:26:17,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2023-11-12 02:26:17,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2023-11-12 02:26:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:26:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2023-11-12 02:26:17,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2023-11-12 02:26:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:26:17,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:26:17,545 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:26:17,548 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:26:17,968 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:26:17,976 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:26:17,976 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-12 02:26:17,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:17 BoogieIcfgContainer [2023-11-12 02:26:17,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:26:17,981 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:26:17,981 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:26:17,985 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:26:17,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:26:16" (1/3) ... [2023-11-12 02:26:17,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325da0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:26:17, skipping insertion in model container [2023-11-12 02:26:17,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:17" (2/3) ... [2023-11-12 02:26:17,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325da0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:26:17, skipping insertion in model container [2023-11-12 02:26:17,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:17" (3/3) ... [2023-11-12 02:26:17,988 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-2.i [2023-11-12 02:26:18,008 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:26:18,008 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-12 02:26:18,055 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:26:18,061 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;@53c0511d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:26:18,062 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-12 02:26:18,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 65 states have internal predecessors, (83), 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) [2023-11-12 02:26:18,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 02:26:18,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:26:18,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:18,079 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-12 02:26:18,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:18,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1064049992, now seen corresponding path program 1 times [2023-11-12 02:26:18,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:18,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826876276] [2023-11-12 02:26:18,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:18,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:18,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:26:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:18,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:26:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:18,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:26:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:18,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:18,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:18,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826876276] [2023-11-12 02:26:18,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826876276] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:18,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:18,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:26:18,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356666725] [2023-11-12 02:26:18,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:18,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:26:18,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:18,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:26:18,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:26:18,583 INFO L87 Difference]: Start difference. First operand has 85 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 65 states have internal predecessors, (83), 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 4.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2023-11-12 02:26:18,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:26:18,876 INFO L93 Difference]: Finished difference Result 162 states and 216 transitions. [2023-11-12 02:26:18,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:26:18,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 2 states have internal predecessors, (16), 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 22 [2023-11-12 02:26:18,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:26:18,885 INFO L225 Difference]: With dead ends: 162 [2023-11-12 02:26:18,886 INFO L226 Difference]: Without dead ends: 25 [2023-11-12 02:26:18,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:26:18,894 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 29 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 162 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 [2023-11-12 02:26:18,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 162 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:26:18,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-12 02:26:18,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-12 02:26:18,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 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) [2023-11-12 02:26:18,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2023-11-12 02:26:18,932 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 22 [2023-11-12 02:26:18,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:26:18,933 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2023-11-12 02:26:18,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2023-11-12 02:26:18,934 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2023-11-12 02:26:18,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 02:26:18,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:26:18,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:18,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:26:18,936 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-12 02:26:18,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:18,936 INFO L85 PathProgramCache]: Analyzing trace with hash 42981638, now seen corresponding path program 1 times [2023-11-12 02:26:18,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:18,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621636167] [2023-11-12 02:26:18,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:18,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:19,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:26:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:19,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:26:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:19,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:26:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:19,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:19,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:19,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621636167] [2023-11-12 02:26:19,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621636167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:19,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:19,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:26:19,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211498698] [2023-11-12 02:26:19,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:19,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:26:19,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:19,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:26:19,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:26:19,200 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-12 02:26:19,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:26:19,342 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2023-11-12 02:26:19,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:26:19,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 22 [2023-11-12 02:26:19,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:26:19,344 INFO L225 Difference]: With dead ends: 34 [2023-11-12 02:26:19,344 INFO L226 Difference]: Without dead ends: 32 [2023-11-12 02:26:19,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:26:19,346 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 13 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:26:19,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 32 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:26:19,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-12 02:26:19,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-12 02:26:19,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 23 states have internal predecessors, (24), 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) [2023-11-12 02:26:19,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2023-11-12 02:26:19,355 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 22 [2023-11-12 02:26:19,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:26:19,357 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2023-11-12 02:26:19,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-12 02:26:19,357 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2023-11-12 02:26:19,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-12 02:26:19,360 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:26:19,360 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:19,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:26:19,361 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-12 02:26:19,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:19,361 INFO L85 PathProgramCache]: Analyzing trace with hash 891665753, now seen corresponding path program 1 times [2023-11-12 02:26:19,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:19,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467481605] [2023-11-12 02:26:19,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:19,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:19,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:26:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:19,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:26:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:19,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:26:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:19,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:26:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:19,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-12 02:26:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:19,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:26:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:19,830 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:26:19,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:19,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467481605] [2023-11-12 02:26:19,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467481605] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:26:19,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558636179] [2023-11-12 02:26:19,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:19,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:19,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:19,835 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:26:19,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:26:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:20,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:26:20,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:20,182 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:26:20,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:26:20,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558636179] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:20,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:26:20,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2023-11-12 02:26:20,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059120709] [2023-11-12 02:26:20,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:20,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:26:20,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:20,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:26:20,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:26:20,191 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2023-11-12 02:26:20,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:26:20,244 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2023-11-12 02:26:20,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:26:20,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 42 [2023-11-12 02:26:20,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:26:20,248 INFO L225 Difference]: With dead ends: 32 [2023-11-12 02:26:20,248 INFO L226 Difference]: Without dead ends: 31 [2023-11-12 02:26:20,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:26:20,253 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 9 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:26:20,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 64 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:26:20,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-12 02:26:20,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-12 02:26:20,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 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) [2023-11-12 02:26:20,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2023-11-12 02:26:20,269 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 42 [2023-11-12 02:26:20,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:26:20,269 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2023-11-12 02:26:20,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2023-11-12 02:26:20,270 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-11-12 02:26:20,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-12 02:26:20,273 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:26:20,274 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-12 02:26:20,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:20,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:20,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-12 02:26:20,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:20,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1871834644, now seen corresponding path program 1 times [2023-11-12 02:26:20,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:20,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343293662] [2023-11-12 02:26:20,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:20,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:20,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:26:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:20,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:26:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:20,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:26:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:20,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:26:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:20,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-12 02:26:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:20,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:26:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:20,823 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:26:20,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:20,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343293662] [2023-11-12 02:26:20,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343293662] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:26:20,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52134327] [2023-11-12 02:26:20,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:20,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:20,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:20,826 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:26:20,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:26:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:21,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:26:21,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:21,185 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:26:21,185 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:26:21,306 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:26:21,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52134327] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:26:21,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:26:21,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2023-11-12 02:26:21,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347581945] [2023-11-12 02:26:21,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:26:21,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-12 02:26:21,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:21,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-12 02:26:21,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:26:21,312 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 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) [2023-11-12 02:26:21,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:26:21,617 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2023-11-12 02:26:21,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:26:21,618 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 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 43 [2023-11-12 02:26:21,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:26:21,620 INFO L225 Difference]: With dead ends: 53 [2023-11-12 02:26:21,620 INFO L226 Difference]: Without dead ends: 52 [2023-11-12 02:26:21,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:26:21,622 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 24 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:26:21,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 50 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:26:21,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-12 02:26:21,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-12 02:26:21,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 37 states have (on average 1.027027027027027) internal successors, (38), 37 states have internal predecessors, (38), 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) [2023-11-12 02:26:21,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2023-11-12 02:26:21,633 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 43 [2023-11-12 02:26:21,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:26:21,634 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2023-11-12 02:26:21,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 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) [2023-11-12 02:26:21,634 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2023-11-12 02:26:21,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-12 02:26:21,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:26:21,636 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2023-11-12 02:26:21,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:21,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:21,843 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-12 02:26:21,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:21,844 INFO L85 PathProgramCache]: Analyzing trace with hash 118205755, now seen corresponding path program 2 times [2023-11-12 02:26:21,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:21,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471604472] [2023-11-12 02:26:21,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:21,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:26:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:26:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:26:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:26:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-12 02:26:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:26:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-12 02:26:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-12 02:26:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:26:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-12 02:26:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-12 02:26:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:26:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-12 02:26:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-12 02:26:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:26:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,758 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-11-12 02:26:22,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:22,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471604472] [2023-11-12 02:26:22,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471604472] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:26:22,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812471469] [2023-11-12 02:26:22,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:26:22,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:22,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:22,761 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:26:22,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:26:23,013 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-12 02:26:23,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:26:23,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:26:23,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:23,155 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2023-11-12 02:26:23,155 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:26:23,315 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2023-11-12 02:26:23,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812471469] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:26:23,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:26:23,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2023-11-12 02:26:23,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028053629] [2023-11-12 02:26:23,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:26:23,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-12 02:26:23,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:23,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-12 02:26:23,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-11-12 02:26:23,318 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand has 17 states, 16 states have (on average 3.1875) internal successors, (51), 15 states have internal predecessors, (51), 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) [2023-11-12 02:26:23,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:26:23,767 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2023-11-12 02:26:23,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-12 02:26:23,768 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.1875) internal successors, (51), 15 states have internal predecessors, (51), 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 103 [2023-11-12 02:26:23,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:26:23,769 INFO L225 Difference]: With dead ends: 60 [2023-11-12 02:26:23,769 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:26:23,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 228 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2023-11-12 02:26:23,771 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 28 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:26:23,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 41 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:26:23,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:26:23,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:26:23,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:23,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:26:23,773 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2023-11-12 02:26:23,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:26:23,773 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:26:23,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.1875) internal successors, (51), 15 states have internal predecessors, (51), 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) [2023-11-12 02:26:23,774 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:26:23,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:26:23,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-12 02:26:23,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-12 02:26:23,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:23,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:23,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:26:24,159 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 566) no Hoare annotation was computed. [2023-11-12 02:26:24,159 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 566) the Hoare annotation is: true [2023-11-12 02:26:24,159 INFO L899 garLoopResultBuilder]: For program point L566-1(line 566) no Hoare annotation was computed. [2023-11-12 02:26:24,159 INFO L899 garLoopResultBuilder]: For program point ldv_list_addFINAL(lines 610 613) no Hoare annotation was computed. [2023-11-12 02:26:24,159 INFO L899 garLoopResultBuilder]: For program point ldv_list_addEXIT(lines 610 613) no Hoare annotation was computed. [2023-11-12 02:26:24,160 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 610 613) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2023-11-12 02:26:24,160 INFO L895 garLoopResultBuilder]: At program point L612(line 612) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2023-11-12 02:26:24,160 INFO L899 garLoopResultBuilder]: For program point L612-1(line 612) no Hoare annotation was computed. [2023-11-12 02:26:24,160 INFO L899 garLoopResultBuilder]: For program point L605(lines 605 609) no Hoare annotation was computed. [2023-11-12 02:26:24,160 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 618 621) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2023-11-12 02:26:24,160 INFO L899 garLoopResultBuilder]: For program point ldv_list_delFINAL(lines 618 621) no Hoare annotation was computed. [2023-11-12 02:26:24,160 INFO L899 garLoopResultBuilder]: For program point ldv_list_delEXIT(lines 618 621) no Hoare annotation was computed. [2023-11-12 02:26:24,160 INFO L899 garLoopResultBuilder]: For program point ldv_successful_mallocEXIT(lines 579 583) no Hoare annotation was computed. [2023-11-12 02:26:24,161 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 579 583) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2023-11-12 02:26:24,161 INFO L899 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2023-11-12 02:26:24,161 INFO L899 garLoopResultBuilder]: For program point L568(lines 568 570) no Hoare annotation was computed. [2023-11-12 02:26:24,161 INFO L899 garLoopResultBuilder]: For program point ldv_successful_mallocFINAL(lines 579 583) no Hoare annotation was computed. [2023-11-12 02:26:24,161 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 596 604) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2023-11-12 02:26:24,161 INFO L899 garLoopResultBuilder]: For program point __ldv_list_addFINAL(lines 596 604) no Hoare annotation was computed. [2023-11-12 02:26:24,161 INFO L899 garLoopResultBuilder]: For program point __ldv_list_addEXIT(lines 596 604) no Hoare annotation was computed. [2023-11-12 02:26:24,161 INFO L899 garLoopResultBuilder]: For program point L688(lines 688 706) no Hoare annotation was computed. [2023-11-12 02:26:24,162 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 707 711) no Hoare annotation was computed. [2023-11-12 02:26:24,162 INFO L899 garLoopResultBuilder]: For program point L680(lines 680 682) no Hoare annotation was computed. [2023-11-12 02:26:24,162 INFO L899 garLoopResultBuilder]: For program point L647(lines 647 656) no Hoare annotation was computed. [2023-11-12 02:26:24,162 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 675) no Hoare annotation was computed. [2023-11-12 02:26:24,162 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 693) no Hoare annotation was computed. [2023-11-12 02:26:24,162 INFO L899 garLoopResultBuilder]: For program point L639(lines 639 646) no Hoare annotation was computed. [2023-11-12 02:26:24,162 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:26:24,162 INFO L899 garLoopResultBuilder]: For program point L681(line 681) no Hoare annotation was computed. [2023-11-12 02:26:24,163 INFO L902 garLoopResultBuilder]: At program point L681-1(line 681) the Hoare annotation is: true [2023-11-12 02:26:24,163 INFO L899 garLoopResultBuilder]: For program point L681-2(line 681) no Hoare annotation was computed. [2023-11-12 02:26:24,163 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 693) no Hoare annotation was computed. [2023-11-12 02:26:24,163 INFO L902 garLoopResultBuilder]: At program point L673(line 673) the Hoare annotation is: true [2023-11-12 02:26:24,163 INFO L899 garLoopResultBuilder]: For program point L673-1(line 673) no Hoare annotation was computed. [2023-11-12 02:26:24,163 INFO L902 garLoopResultBuilder]: At program point L640(line 640) the Hoare annotation is: true [2023-11-12 02:26:24,169 INFO L899 garLoopResultBuilder]: For program point L673-2(line 673) no Hoare annotation was computed. [2023-11-12 02:26:24,169 INFO L899 garLoopResultBuilder]: For program point L640-1(line 640) no Hoare annotation was computed. [2023-11-12 02:26:24,169 INFO L902 garLoopResultBuilder]: At program point L673-3(line 673) the Hoare annotation is: true [2023-11-12 02:26:24,169 INFO L899 garLoopResultBuilder]: For program point L640-2(lines 640 645) no Hoare annotation was computed. [2023-11-12 02:26:24,169 INFO L899 garLoopResultBuilder]: For program point L673-4(line 673) no Hoare annotation was computed. [2023-11-12 02:26:24,169 INFO L899 garLoopResultBuilder]: For program point L673-6(line 673) no Hoare annotation was computed. [2023-11-12 02:26:24,170 INFO L899 garLoopResultBuilder]: For program point ldv_set_empty_returnLabel#1(lines 666 668) no Hoare annotation was computed. [2023-11-12 02:26:24,170 INFO L902 garLoopResultBuilder]: At program point L698-2(lines 698 701) the Hoare annotation is: true [2023-11-12 02:26:24,170 INFO L899 garLoopResultBuilder]: For program point L698-3(lines 698 701) no Hoare annotation was computed. [2023-11-12 02:26:24,170 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:26:24,171 INFO L899 garLoopResultBuilder]: For program point L650-2(lines 650 655) no Hoare annotation was computed. [2023-11-12 02:26:24,171 INFO L902 garLoopResultBuilder]: At program point L650-3(lines 650 655) the Hoare annotation is: true [2023-11-12 02:26:24,171 INFO L902 garLoopResultBuilder]: At program point L642(line 642) the Hoare annotation is: true [2023-11-12 02:26:24,171 INFO L899 garLoopResultBuilder]: For program point L642-1(line 642) no Hoare annotation was computed. [2023-11-12 02:26:24,171 INFO L902 garLoopResultBuilder]: At program point L700(line 700) the Hoare annotation is: true [2023-11-12 02:26:24,171 INFO L899 garLoopResultBuilder]: For program point L700-1(lines 698 701) no Hoare annotation was computed. [2023-11-12 02:26:24,172 INFO L899 garLoopResultBuilder]: For program point L651(lines 651 654) no Hoare annotation was computed. [2023-11-12 02:26:24,172 INFO L899 garLoopResultBuilder]: For program point L676(lines 676 679) no Hoare annotation was computed. [2023-11-12 02:26:24,172 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:26:24,172 INFO L899 garLoopResultBuilder]: For program point L693-2(line 693) no Hoare annotation was computed. [2023-11-12 02:26:24,172 INFO L899 garLoopResultBuilder]: For program point L693-3(line 693) no Hoare annotation was computed. [2023-11-12 02:26:24,172 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))) [2023-11-12 02:26:24,173 INFO L899 garLoopResultBuilder]: For program point L693-5(lines 693 696) no Hoare annotation was computed. [2023-11-12 02:26:24,173 INFO L902 garLoopResultBuilder]: At program point L652(line 652) the Hoare annotation is: true [2023-11-12 02:26:24,174 INFO L899 garLoopResultBuilder]: For program point L652-1(line 652) no Hoare annotation was computed. [2023-11-12 02:26:24,174 INFO L902 garLoopResultBuilder]: At program point L677(line 677) the Hoare annotation is: true [2023-11-12 02:26:24,175 INFO L902 garLoopResultBuilder]: At program point L644(line 644) the Hoare annotation is: true [2023-11-12 02:26:24,175 INFO L899 garLoopResultBuilder]: For program point L677-1(line 677) no Hoare annotation was computed. [2023-11-12 02:26:24,175 INFO L899 garLoopResultBuilder]: For program point L644-1(line 644) no Hoare annotation was computed. [2023-11-12 02:26:24,175 INFO L899 garLoopResultBuilder]: For program point L677-2(line 677) no Hoare annotation was computed. [2023-11-12 02:26:24,175 INFO L902 garLoopResultBuilder]: At program point L677-3(line 677) the Hoare annotation is: true [2023-11-12 02:26:24,176 INFO L899 garLoopResultBuilder]: For program point L677-4(line 677) no Hoare annotation was computed. [2023-11-12 02:26:24,176 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:26:24,176 INFO L899 garLoopResultBuilder]: For program point L677-6(line 677) no Hoare annotation was computed. [2023-11-12 02:26:24,176 INFO L899 garLoopResultBuilder]: For program point L702-2(lines 702 704) no Hoare annotation was computed. [2023-11-12 02:26:24,176 INFO L902 garLoopResultBuilder]: At program point L702-3(lines 702 704) the Hoare annotation is: true [2023-11-12 02:26:24,176 INFO L899 garLoopResultBuilder]: For program point L702-4(lines 702 704) no Hoare annotation was computed. [2023-11-12 02:26:24,177 INFO L899 garLoopResultBuilder]: For program point ldv_list_empty_returnLabel#1(lines 622 625) no Hoare annotation was computed. [2023-11-12 02:26:24,177 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))) [2023-11-12 02:26:24,177 INFO L899 garLoopResultBuilder]: For program point L694-1(line 694) no Hoare annotation was computed. [2023-11-12 02:26:24,177 INFO L899 garLoopResultBuilder]: For program point L670(lines 670 671) no Hoare annotation was computed. [2023-11-12 02:26:24,177 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))) [2023-11-12 02:26:24,178 INFO L899 garLoopResultBuilder]: For program point L695-1(lines 693 696) no Hoare annotation was computed. [2023-11-12 02:26:24,178 INFO L899 garLoopResultBuilder]: For program point ldv_is_in_setEXIT(lines 657 665) no Hoare annotation was computed. [2023-11-12 02:26:24,178 INFO L899 garLoopResultBuilder]: For program point ldv_is_in_setFINAL(lines 657 665) no Hoare annotation was computed. [2023-11-12 02:26:24,178 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 662) no Hoare annotation was computed. [2023-11-12 02:26:24,179 INFO L899 garLoopResultBuilder]: For program point L659-2(lines 659 663) no Hoare annotation was computed. [2023-11-12 02:26:24,179 INFO L902 garLoopResultBuilder]: At program point L659-3(lines 659 663) the Hoare annotation is: true [2023-11-12 02:26:24,179 INFO L899 garLoopResultBuilder]: For program point L659-4(lines 659 663) no Hoare annotation was computed. [2023-11-12 02:26:24,179 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 657 665) the Hoare annotation is: true [2023-11-12 02:26:24,182 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-11-12 02:26:24,184 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:26:24,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:26:24 BoogieIcfgContainer [2023-11-12 02:26:24,200 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:26:24,201 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:26:24,201 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:26:24,201 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:26:24,202 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:17" (3/4) ... [2023-11-12 02:26:24,204 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:26:24,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reach_error [2023-11-12 02:26:24,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_add [2023-11-12 02:26:24,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_is_in_set [2023-11-12 02:26:24,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_del [2023-11-12 02:26:24,209 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_successful_malloc [2023-11-12 02:26:24,209 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __ldv_list_add [2023-11-12 02:26:24,224 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-11-12 02:26:24,224 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-12 02:26:24,225 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:26:24,226 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:26:24,359 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:26:24,359 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:26:24,359 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:26:24,360 INFO L158 Benchmark]: Toolchain (without parser) took 7989.03ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 126.6MB in the beginning and 51.9MB in the end (delta: 74.7MB). Peak memory consumption was 110.4MB. Max. memory is 16.1GB. [2023-11-12 02:26:24,361 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory was 74.0MB in the beginning and 74.0MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:26:24,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 734.09ms. Allocated memory is still 165.7MB. Free memory was 126.6MB in the beginning and 106.7MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:26:24,361 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.28ms. Allocated memory is still 165.7MB. Free memory was 106.7MB in the beginning and 103.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:26:24,362 INFO L158 Benchmark]: Boogie Preprocessor took 63.82ms. Allocated memory is still 165.7MB. Free memory was 103.9MB in the beginning and 101.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:26:24,362 INFO L158 Benchmark]: RCFGBuilder took 714.37ms. Allocated memory is still 165.7MB. Free memory was 101.0MB in the beginning and 76.6MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-12 02:26:24,362 INFO L158 Benchmark]: TraceAbstraction took 6219.12ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 75.9MB in the beginning and 60.3MB in the end (delta: 15.6MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. [2023-11-12 02:26:24,363 INFO L158 Benchmark]: Witness Printer took 158.95ms. Allocated memory is still 199.2MB. Free memory was 60.3MB in the beginning and 51.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:26:24,365 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory was 74.0MB in the beginning and 74.0MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 734.09ms. Allocated memory is still 165.7MB. Free memory was 126.6MB in the beginning and 106.7MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.28ms. Allocated memory is still 165.7MB. Free memory was 106.7MB in the beginning and 103.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.82ms. Allocated memory is still 165.7MB. Free memory was 103.9MB in the beginning and 101.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 714.37ms. Allocated memory is still 165.7MB. Free memory was 101.0MB in the beginning and 76.6MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6219.12ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 75.9MB in the beginning and 60.3MB in the end (delta: 15.6MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. * Witness Printer took 158.95ms. Allocated memory is still 199.2MB. Free memory was 60.3MB in the beginning and 51.9MB in the end (delta: 8.4MB). 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, 85 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 103 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 349 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 226 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 484 IncrementalHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 123 mSDtfsCounter, 484 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 448 GetRequests, 382 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred 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, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 420 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 556 ConstructedInterpolants, 0 QuantifiedInterpolants, 1178 SizeOfPredicates, 7 NumberOfNonLiveVariables, 885 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 553/698 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! [2023-11-12 02:26:24,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0cc6b69-4be1-4b09-875e-ac658b98c23a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE