./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu --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 10aecdd717bb6691571ad1da0b912f030832fb85361f767ea82293acfe046216 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:57:17,427 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:57:17,570 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:57:17,581 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:57:17,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:57:17,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:57:17,620 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:57:17,621 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:57:17,622 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:57:17,628 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:57:17,629 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:57:17,630 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:57:17,630 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:57:17,633 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:57:17,633 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:57:17,634 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:57:17,634 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:57:17,635 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:57:17,636 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:57:17,636 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:57:17,637 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:57:17,638 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:57:17,639 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:57:17,639 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:57:17,640 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:57:17,641 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:57:17,641 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:57:17,642 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:57:17,642 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:57:17,643 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:57:17,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:17,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:57:17,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:57:17,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:57:17,645 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:57:17,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:57:17,646 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:57:17,646 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:57:17,647 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:57:17,647 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:57:17,647 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:57:17,648 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_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10aecdd717bb6691571ad1da0b912f030832fb85361f767ea82293acfe046216 [2023-11-19 07:57:18,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:57:18,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:57:18,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:57:18,091 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:57:18,092 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:57:18,093 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i [2023-11-19 07:57:21,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:57:21,907 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:57:21,908 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i [2023-11-19 07:57:21,941 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/data/cdd206caa/df53f7764f414271b45bfdbe04fcede1/FLAGe1da024e2 [2023-11-19 07:57:21,958 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/data/cdd206caa/df53f7764f414271b45bfdbe04fcede1 [2023-11-19 07:57:21,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:57:21,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:57:21,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:21,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:57:21,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:57:21,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:21" (1/1) ... [2023-11-19 07:57:21,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15da26ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:21, skipping insertion in model container [2023-11-19 07:57:21,975 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:21" (1/1) ... [2023-11-19 07:57:22,032 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:57:22,588 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:22,610 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:57:22,728 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:22,780 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:57:22,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:22 WrapperNode [2023-11-19 07:57:22,781 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:22,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:22,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:57:22,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:57:22,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:22" (1/1) ... [2023-11-19 07:57:22,815 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:22" (1/1) ... [2023-11-19 07:57:22,878 INFO L138 Inliner]: procedures = 142, calls = 65, calls flagged for inlining = 15, calls inlined = 14, statements flattened = 186 [2023-11-19 07:57:22,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:22,880 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:57:22,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:57:22,882 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:57:22,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:22" (1/1) ... [2023-11-19 07:57:22,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:22" (1/1) ... [2023-11-19 07:57:22,922 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:22" (1/1) ... [2023-11-19 07:57:22,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:22" (1/1) ... [2023-11-19 07:57:22,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:22" (1/1) ... [2023-11-19 07:57:22,969 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:22" (1/1) ... [2023-11-19 07:57:22,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:22" (1/1) ... [2023-11-19 07:57:22,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:22" (1/1) ... [2023-11-19 07:57:22,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:57:22,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:57:22,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:57:22,997 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:57:22,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:22" (1/1) ... [2023-11-19 07:57:23,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:23,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:23,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:57:23,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:57:23,161 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-19 07:57:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-19 07:57:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2023-11-19 07:57:23,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2023-11-19 07:57:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2023-11-19 07:57:23,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2023-11-19 07:57:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:57:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:57:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:57:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2023-11-19 07:57:23,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2023-11-19 07:57:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:57:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:57:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:57:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:57:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2023-11-19 07:57:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2023-11-19 07:57:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:57:23,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:57:23,441 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:57:23,445 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:57:23,977 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:57:23,989 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:57:23,989 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-19 07:57:23,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:23 BoogieIcfgContainer [2023-11-19 07:57:24,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:57:24,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:57:24,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:57:24,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:57:24,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:57:21" (1/3) ... [2023-11-19 07:57:24,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd0164a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:24, skipping insertion in model container [2023-11-19 07:57:24,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:22" (2/3) ... [2023-11-19 07:57:24,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd0164a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:24, skipping insertion in model container [2023-11-19 07:57:24,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:23" (3/3) ... [2023-11-19 07:57:24,022 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-1.i [2023-11-19 07:57:24,054 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:57:24,054 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:57:24,146 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:57:24,155 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;@1044c09d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:57:24,155 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 07:57:24,162 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 63 states have internal predecessors, (81), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:57:24,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 07:57:24,178 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:24,179 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] [2023-11-19 07:57:24,180 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 07:57:24,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:24,190 INFO L85 PathProgramCache]: Analyzing trace with hash -44855740, now seen corresponding path program 1 times [2023-11-19 07:57:24,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:24,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852101855] [2023-11-19 07:57:24,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:24,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:24,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:57:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:24,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:57:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:24,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:24,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:24,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:24,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852101855] [2023-11-19 07:57:24,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852101855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:24,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:24,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:57:24,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408825546] [2023-11-19 07:57:24,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:24,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:57:24,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:25,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:57:25,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:57:25,019 INFO L87 Difference]: Start difference. First operand has 80 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 63 states have internal predecessors, (81), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) 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) [2023-11-19 07:57:25,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:25,496 INFO L93 Difference]: Finished difference Result 198 states and 280 transitions. [2023-11-19 07:57:25,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:57:25,499 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 [2023-11-19 07:57:25,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:25,508 INFO L225 Difference]: With dead ends: 198 [2023-11-19 07:57:25,509 INFO L226 Difference]: Without dead ends: 32 [2023-11-19 07:57:25,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:57:25,526 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 68 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:25,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 307 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:57:25,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-19 07:57:25,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-19 07:57:25,582 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) [2023-11-19 07:57:25,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2023-11-19 07:57:25,586 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 22 [2023-11-19 07:57:25,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:25,588 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2023-11-19 07:57:25,588 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) [2023-11-19 07:57:25,589 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2023-11-19 07:57:25,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-19 07:57:25,594 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:25,594 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] [2023-11-19 07:57:25,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:57:25,597 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 07:57:25,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:25,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1438196395, now seen corresponding path program 1 times [2023-11-19 07:57:25,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:25,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432579507] [2023-11-19 07:57:25,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:25,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:26,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:57:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:26,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:57:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:26,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:26,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:57:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:26,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-19 07:57:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:26,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:26,200 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 07:57:26,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:26,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432579507] [2023-11-19 07:57:26,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432579507] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:57:26,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918310325] [2023-11-19 07:57:26,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:26,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:26,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:26,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:26,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:57:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:26,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:57:26,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 07:57:26,574 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:26,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918310325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:26,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:57:26,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2023-11-19 07:57:26,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101111] [2023-11-19 07:57:26,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:26,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:57:26,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:26,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:57:26,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:26,590 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) [2023-11-19 07:57:26,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:26,650 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2023-11-19 07:57:26,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:26,652 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 [2023-11-19 07:57:26,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:26,656 INFO L225 Difference]: With dead ends: 32 [2023-11-19 07:57:26,657 INFO L226 Difference]: Without dead ends: 31 [2023-11-19 07:57:26,659 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 [2023-11-19 07:57:26,662 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 8 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:26,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 87 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:26,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-19 07:57:26,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-19 07:57:26,680 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) [2023-11-19 07:57:26,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2023-11-19 07:57:26,683 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 42 [2023-11-19 07:57:26,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:26,684 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2023-11-19 07:57:26,684 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) [2023-11-19 07:57:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-11-19 07:57:26,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 07:57:26,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:26,686 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] [2023-11-19 07:57:26,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:26,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:26,888 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 07:57:26,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:26,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1634415212, now seen corresponding path program 1 times [2023-11-19 07:57:26,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:26,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789710237] [2023-11-19 07:57:26,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:26,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:26,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:27,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:57:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:27,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:57:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:27,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:27,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:57:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:27,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-19 07:57:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:27,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:27,177 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 07:57:27,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:27,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789710237] [2023-11-19 07:57:27,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789710237] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:57:27,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514339857] [2023-11-19 07:57:27,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:27,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:27,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:27,182 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:27,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:57:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:27,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:57:27,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:27,448 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 07:57:27,448 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:27,564 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 07:57:27,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514339857] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:27,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:57:27,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2023-11-19 07:57:27,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105665530] [2023-11-19 07:57:27,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:27,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:57:27,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:27,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:57:27,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:57:27,569 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) [2023-11-19 07:57:27,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:27,870 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2023-11-19 07:57:27,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:57:27,870 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 [2023-11-19 07:57:27,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:27,874 INFO L225 Difference]: With dead ends: 53 [2023-11-19 07:57:27,874 INFO L226 Difference]: Without dead ends: 52 [2023-11-19 07:57:27,875 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 [2023-11-19 07:57:27,878 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 [2023-11-19 07:57:27,879 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] [2023-11-19 07:57:27,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-19 07:57:27,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-19 07:57:27,900 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) [2023-11-19 07:57:27,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2023-11-19 07:57:27,902 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 43 [2023-11-19 07:57:27,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:27,903 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2023-11-19 07:57:27,904 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) [2023-11-19 07:57:27,905 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2023-11-19 07:57:27,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-19 07:57:27,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:27,914 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] [2023-11-19 07:57:27,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:28,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:28,136 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 07:57:28,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:28,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1459038783, now seen corresponding path program 2 times [2023-11-19 07:57:28,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:28,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159863104] [2023-11-19 07:57:28,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:28,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:28,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:57:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:28,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:57:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:28,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:57:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:28,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-19 07:57:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:28,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:28,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:57:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:29,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 07:57:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:29,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:29,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:29,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-19 07:57:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:29,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:57:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:29,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:29,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:57:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:29,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-19 07:57:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:29,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:29,176 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-11-19 07:57:29,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:29,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159863104] [2023-11-19 07:57:29,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159863104] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:57:29,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827054811] [2023-11-19 07:57:29,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:57:29,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:29,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:29,181 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:29,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:57:29,426 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:57:29,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:57:29,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:57:29,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:29,566 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2023-11-19 07:57:29,567 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:29,735 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2023-11-19 07:57:29,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827054811] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:29,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:57:29,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2023-11-19 07:57:29,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687492311] [2023-11-19 07:57:29,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:29,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-19 07:57:29,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:29,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-19 07:57:29,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:57:29,751 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) [2023-11-19 07:57:30,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:30,168 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2023-11-19 07:57:30,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-19 07:57:30,169 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 [2023-11-19 07:57:30,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:30,170 INFO L225 Difference]: With dead ends: 60 [2023-11-19 07:57:30,170 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:57:30,171 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 [2023-11-19 07:57:30,172 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 30 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:30,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 38 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:57:30,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:57:30,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:57:30,174 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) [2023-11-19 07:57:30,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:57:30,175 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2023-11-19 07:57:30,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:30,175 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:57:30,175 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) [2023-11-19 07:57:30,176 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:57:30,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:57:30,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-19 07:57:30,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-19 07:57:30,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-19 07:57:30,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:30,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:57:30,574 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 566) no Hoare annotation was computed. [2023-11-19 07:57:30,574 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 566) the Hoare annotation is: true [2023-11-19 07:57:30,575 INFO L899 garLoopResultBuilder]: For program point L566-1(line 566) no Hoare annotation was computed. [2023-11-19 07:57:30,575 INFO L899 garLoopResultBuilder]: For program point ldv_list_addFINAL(lines 610 613) no Hoare annotation was computed. [2023-11-19 07:57:30,575 INFO L899 garLoopResultBuilder]: For program point ldv_list_addEXIT(lines 610 613) no Hoare annotation was computed. [2023-11-19 07:57:30,575 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$.offset)|)) [2023-11-19 07:57:30,576 INFO L895 garLoopResultBuilder]: At program point L612(line 612) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2023-11-19 07:57:30,576 INFO L899 garLoopResultBuilder]: For program point L612-1(line 612) no Hoare annotation was computed. [2023-11-19 07:57:30,576 INFO L899 garLoopResultBuilder]: For program point ldv_successful_mallocEXIT(lines 579 583) no Hoare annotation was computed. [2023-11-19 07:57:30,576 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 579 583) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2023-11-19 07:57:30,576 INFO L899 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2023-11-19 07:57:30,576 INFO L899 garLoopResultBuilder]: For program point L568(lines 568 570) no Hoare annotation was computed. [2023-11-19 07:57:30,577 INFO L899 garLoopResultBuilder]: For program point ldv_successful_mallocFINAL(lines 579 583) no Hoare annotation was computed. [2023-11-19 07:57:30,577 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)|)) [2023-11-19 07:57:30,577 INFO L899 garLoopResultBuilder]: For program point __ldv_list_addFINAL(lines 596 604) no Hoare annotation was computed. [2023-11-19 07:57:30,577 INFO L899 garLoopResultBuilder]: For program point __ldv_list_addEXIT(lines 596 604) no Hoare annotation was computed. [2023-11-19 07:57:30,577 INFO L899 garLoopResultBuilder]: For program point L605(lines 605 609) no Hoare annotation was computed. [2023-11-19 07:57:30,578 INFO L899 garLoopResultBuilder]: For program point L688(lines 688 705) no Hoare annotation was computed. [2023-11-19 07:57:30,578 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 706 710) no Hoare annotation was computed. [2023-11-19 07:57:30,578 INFO L899 garLoopResultBuilder]: For program point L680(lines 680 682) no Hoare annotation was computed. [2023-11-19 07:57:30,578 INFO L899 garLoopResultBuilder]: For program point L647(lines 647 656) no Hoare annotation was computed. [2023-11-19 07:57:30,578 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 675) no Hoare annotation was computed. [2023-11-19 07:57:30,579 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 693) no Hoare annotation was computed. [2023-11-19 07:57:30,579 INFO L899 garLoopResultBuilder]: For program point L639(lines 639 646) no Hoare annotation was computed. [2023-11-19 07:57:30,579 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:57:30,579 INFO L899 garLoopResultBuilder]: For program point L681(line 681) no Hoare annotation was computed. [2023-11-19 07:57:30,579 INFO L902 garLoopResultBuilder]: At program point L681-1(line 681) the Hoare annotation is: true [2023-11-19 07:57:30,579 INFO L899 garLoopResultBuilder]: For program point L681-2(line 681) no Hoare annotation was computed. [2023-11-19 07:57:30,580 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 693) no Hoare annotation was computed. [2023-11-19 07:57:30,580 INFO L902 garLoopResultBuilder]: At program point L673(line 673) the Hoare annotation is: true [2023-11-19 07:57:30,580 INFO L899 garLoopResultBuilder]: For program point L673-1(line 673) no Hoare annotation was computed. [2023-11-19 07:57:30,580 INFO L902 garLoopResultBuilder]: At program point L640(line 640) the Hoare annotation is: true [2023-11-19 07:57:30,580 INFO L899 garLoopResultBuilder]: For program point L673-2(line 673) no Hoare annotation was computed. [2023-11-19 07:57:30,581 INFO L899 garLoopResultBuilder]: For program point L640-1(line 640) no Hoare annotation was computed. [2023-11-19 07:57:30,581 INFO L902 garLoopResultBuilder]: At program point L673-3(line 673) the Hoare annotation is: true [2023-11-19 07:57:30,581 INFO L899 garLoopResultBuilder]: For program point L640-2(lines 640 645) no Hoare annotation was computed. [2023-11-19 07:57:30,581 INFO L899 garLoopResultBuilder]: For program point L673-4(line 673) no Hoare annotation was computed. [2023-11-19 07:57:30,582 INFO L899 garLoopResultBuilder]: For program point L673-6(line 673) no Hoare annotation was computed. [2023-11-19 07:57:30,582 INFO L899 garLoopResultBuilder]: For program point ldv_set_empty_returnLabel#1(lines 666 668) no Hoare annotation was computed. [2023-11-19 07:57:30,582 INFO L899 garLoopResultBuilder]: For program point L698-2(lines 698 700) no Hoare annotation was computed. [2023-11-19 07:57:30,582 INFO L902 garLoopResultBuilder]: At program point L698-3(lines 698 700) the Hoare annotation is: true [2023-11-19 07:57:30,582 INFO L899 garLoopResultBuilder]: For program point L698-4(lines 698 700) no Hoare annotation was computed. [2023-11-19 07:57:30,583 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:57:30,583 INFO L899 garLoopResultBuilder]: For program point L650-2(lines 650 655) no Hoare annotation was computed. [2023-11-19 07:57:30,583 INFO L902 garLoopResultBuilder]: At program point L650-3(lines 650 655) the Hoare annotation is: true [2023-11-19 07:57:30,583 INFO L902 garLoopResultBuilder]: At program point L642(line 642) the Hoare annotation is: true [2023-11-19 07:57:30,583 INFO L899 garLoopResultBuilder]: For program point L642-1(line 642) no Hoare annotation was computed. [2023-11-19 07:57:30,583 INFO L899 garLoopResultBuilder]: For program point L651(lines 651 654) no Hoare annotation was computed. [2023-11-19 07:57:30,584 INFO L899 garLoopResultBuilder]: For program point L618(lines 618 621) no Hoare annotation was computed. [2023-11-19 07:57:30,584 INFO L899 garLoopResultBuilder]: For program point L676(lines 676 679) no Hoare annotation was computed. [2023-11-19 07:57:30,584 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:57:30,584 INFO L899 garLoopResultBuilder]: For program point L701-2(lines 701 703) no Hoare annotation was computed. [2023-11-19 07:57:30,584 INFO L902 garLoopResultBuilder]: At program point L701-3(lines 701 703) the Hoare annotation is: true [2023-11-19 07:57:30,584 INFO L899 garLoopResultBuilder]: For program point L701-4(lines 701 703) no Hoare annotation was computed. [2023-11-19 07:57:30,585 INFO L899 garLoopResultBuilder]: For program point L693-2(line 693) no Hoare annotation was computed. [2023-11-19 07:57:30,585 INFO L899 garLoopResultBuilder]: For program point L693-3(line 693) no Hoare annotation was computed. [2023-11-19 07:57:30,585 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))) [2023-11-19 07:57:30,585 INFO L899 garLoopResultBuilder]: For program point L693-5(lines 693 696) no Hoare annotation was computed. [2023-11-19 07:57:30,585 INFO L902 garLoopResultBuilder]: At program point L677(line 677) the Hoare annotation is: true [2023-11-19 07:57:30,586 INFO L902 garLoopResultBuilder]: At program point L644(line 644) the Hoare annotation is: true [2023-11-19 07:57:30,586 INFO L899 garLoopResultBuilder]: For program point L677-1(line 677) no Hoare annotation was computed. [2023-11-19 07:57:30,586 INFO L899 garLoopResultBuilder]: For program point L644-1(line 644) no Hoare annotation was computed. [2023-11-19 07:57:30,586 INFO L899 garLoopResultBuilder]: For program point L677-2(line 677) no Hoare annotation was computed. [2023-11-19 07:57:30,586 INFO L902 garLoopResultBuilder]: At program point L677-3(line 677) the Hoare annotation is: true [2023-11-19 07:57:30,586 INFO L899 garLoopResultBuilder]: For program point L677-4(line 677) no Hoare annotation was computed. [2023-11-19 07:57:30,587 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:57:30,587 INFO L899 garLoopResultBuilder]: For program point L677-6(line 677) no Hoare annotation was computed. [2023-11-19 07:57:30,587 INFO L899 garLoopResultBuilder]: For program point ldv_list_empty_returnLabel#1(lines 622 625) no Hoare annotation was computed. [2023-11-19 07:57:30,587 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))) [2023-11-19 07:57:30,587 INFO L899 garLoopResultBuilder]: For program point L694-1(line 694) no Hoare annotation was computed. [2023-11-19 07:57:30,588 INFO L899 garLoopResultBuilder]: For program point L670(lines 670 671) no Hoare annotation was computed. [2023-11-19 07:57:30,588 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))) [2023-11-19 07:57:30,588 INFO L899 garLoopResultBuilder]: For program point L695-1(lines 693 696) no Hoare annotation was computed. [2023-11-19 07:57:30,588 INFO L899 garLoopResultBuilder]: For program point ldv_is_in_setEXIT(lines 657 665) no Hoare annotation was computed. [2023-11-19 07:57:30,588 INFO L899 garLoopResultBuilder]: For program point ldv_is_in_setFINAL(lines 657 665) no Hoare annotation was computed. [2023-11-19 07:57:30,589 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 662) no Hoare annotation was computed. [2023-11-19 07:57:30,589 INFO L899 garLoopResultBuilder]: For program point L659-2(lines 659 663) no Hoare annotation was computed. [2023-11-19 07:57:30,589 INFO L902 garLoopResultBuilder]: At program point L659-3(lines 659 663) the Hoare annotation is: true [2023-11-19 07:57:30,589 INFO L899 garLoopResultBuilder]: For program point L659-4(lines 659 663) no Hoare annotation was computed. [2023-11-19 07:57:30,589 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 657 665) the Hoare annotation is: true [2023-11-19 07:57:30,593 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-11-19 07:57:30,595 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:57:30,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:57:30 BoogieIcfgContainer [2023-11-19 07:57:30,608 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:57:30,609 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:57:30,609 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:57:30,609 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:57:30,610 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:23" (3/4) ... [2023-11-19 07:57:30,612 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:57:30,617 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reach_error [2023-11-19 07:57:30,618 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_add [2023-11-19 07:57:30,618 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_is_in_set [2023-11-19 07:57:30,618 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_successful_malloc [2023-11-19 07:57:30,618 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __ldv_list_add [2023-11-19 07:57:30,638 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2023-11-19 07:57:30,639 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-19 07:57:30,640 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:57:30,640 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:57:30,769 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:57:30,770 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:57:30,770 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:57:30,771 INFO L158 Benchmark]: Toolchain (without parser) took 8808.39ms. Allocated memory was 132.1MB in the beginning and 201.3MB in the end (delta: 69.2MB). Free memory was 89.2MB in the beginning and 80.4MB in the end (delta: 8.8MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. [2023-11-19 07:57:30,771 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 132.1MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:57:30,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 816.77ms. Allocated memory is still 132.1MB. Free memory was 88.9MB in the beginning and 68.7MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:57:30,772 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.13ms. Allocated memory is still 132.1MB. Free memory was 68.7MB in the beginning and 66.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:57:30,773 INFO L158 Benchmark]: Boogie Preprocessor took 115.17ms. Allocated memory is still 132.1MB. Free memory was 66.1MB in the beginning and 63.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:57:30,773 INFO L158 Benchmark]: RCFGBuilder took 1013.27ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 63.4MB in the beginning and 118.2MB in the end (delta: -54.8MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2023-11-19 07:57:30,773 INFO L158 Benchmark]: TraceAbstraction took 6595.59ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 116.9MB in the beginning and 87.8MB in the end (delta: 29.2MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. [2023-11-19 07:57:30,774 INFO L158 Benchmark]: Witness Printer took 161.78ms. Allocated memory is still 201.3MB. Free memory was 87.8MB in the beginning and 80.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:57:30,777 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 132.1MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 816.77ms. Allocated memory is still 132.1MB. Free memory was 88.9MB in the beginning and 68.7MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.13ms. Allocated memory is still 132.1MB. Free memory was 68.7MB in the beginning and 66.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 115.17ms. Allocated memory is still 132.1MB. Free memory was 66.1MB in the beginning and 63.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1013.27ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 63.4MB in the beginning and 118.2MB in the end (delta: -54.8MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6595.59ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 116.9MB in the beginning and 87.8MB in the end (delta: 29.2MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. * Witness Printer took 161.78ms. Allocated memory is still 201.3MB. Free memory was 87.8MB in the beginning and 80.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 80 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 135 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 130 mSDsluCounter, 482 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 361 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 484 IncrementalHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 121 mSDtfsCounter, 484 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 437 GetRequests, 374 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 44, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 73 PreInvPairs, 114 NumberOfFragments, 102 HoareAnnotationTreeSize, 73 FomulaSimplifications, 36 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 121 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 398 NumberOfCodeBlocks, 318 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 535 ConstructedInterpolants, 0 QuantifiedInterpolants, 1133 SizeOfPredicates, 7 NumberOfNonLiveVariables, 885 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 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: 698]: Loop Invariant Derived loop invariant: 1 - 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: 701]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 659]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-19 07:57:30,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fb4be-5f4b-418b-a122-681404bab611/bin/uautomizer-verify-uCwYo4JHxu/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