./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_16-traces-unprot2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_eb26df97-d02e-4054-be50-ef2023a3d2c8/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/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_eb26df97-d02e-4054-be50-ef2023a3d2c8/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_16-traces-unprot2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e368f9929dbba9f95a2cf9bb03ad888bdb9b2cf2face386050ade96538e7b31 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:03:34,139 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:03:34,213 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:03:34,218 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:03:34,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:03:34,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:03:34,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:03:34,246 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:03:34,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:03:34,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:03:34,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:03:34,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:03:34,249 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:03:34,249 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:03:34,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:03:34,250 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:03:34,251 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:03:34,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:03:34,252 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:03:34,252 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:03:34,252 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:03:34,253 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:03:34,253 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:03:34,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:03:34,254 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:03:34,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:03:34,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:03:34,255 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:03:34,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:03:34,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:03:34,256 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:03:34,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:03:34,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:03:34,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:03:34,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:03:34,258 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:03:34,258 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:03:34,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:03:34,258 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:03:34,259 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_eb26df97-d02e-4054-be50-ef2023a3d2c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e368f9929dbba9f95a2cf9bb03ad888bdb9b2cf2face386050ade96538e7b31 [2023-11-12 02:03:34,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:03:34,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:03:34,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:03:34,576 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:03:34,577 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:03:34,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/goblint-regression/36-apron_16-traces-unprot2_true.i [2023-11-12 02:03:37,720 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:03:38,056 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:03:38,057 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/sv-benchmarks/c/goblint-regression/36-apron_16-traces-unprot2_true.i [2023-11-12 02:03:38,093 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/bin/uautomizer-verify-uTZkv6EMXl/data/2b32ddecb/c1f423fe4f5544809c697cf6d90021e9/FLAGfb34d0682 [2023-11-12 02:03:38,118 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/bin/uautomizer-verify-uTZkv6EMXl/data/2b32ddecb/c1f423fe4f5544809c697cf6d90021e9 [2023-11-12 02:03:38,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:03:38,129 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:03:38,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:38,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:03:38,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:03:38,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:38" (1/1) ... [2023-11-12 02:03:38,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1ea86d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:38, skipping insertion in model container [2023-11-12 02:03:38,143 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:38" (1/1) ... [2023-11-12 02:03:38,210 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:03:38,451 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/sv-benchmarks/c/goblint-regression/36-apron_16-traces-unprot2_true.i[1086,1099] [2023-11-12 02:03:38,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:38,675 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:03:38,689 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/sv-benchmarks/c/goblint-regression/36-apron_16-traces-unprot2_true.i[1086,1099] [2023-11-12 02:03:38,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:38,752 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:03:38,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:38 WrapperNode [2023-11-12 02:03:38,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:38,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:03:38,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:03:38,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:03:38,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:38" (1/1) ... [2023-11-12 02:03:38,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:38" (1/1) ... [2023-11-12 02:03:38,800 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2023-11-12 02:03:38,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:03:38,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:03:38,802 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:03:38,802 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:03:38,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:38" (1/1) ... [2023-11-12 02:03:38,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:38" (1/1) ... [2023-11-12 02:03:38,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:38" (1/1) ... [2023-11-12 02:03:38,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:38" (1/1) ... [2023-11-12 02:03:38,821 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:38" (1/1) ... [2023-11-12 02:03:38,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:38" (1/1) ... [2023-11-12 02:03:38,825 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:38" (1/1) ... [2023-11-12 02:03:38,827 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:38" (1/1) ... [2023-11-12 02:03:38,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:03:38,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:03:38,831 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:03:38,831 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:03:38,833 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:38" (1/1) ... [2023-11-12 02:03:38,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:03:38,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:38,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:03:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:03:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:03:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:03:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-12 02:03:38,931 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-12 02:03:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:03:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:03:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:03:38,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:03:38,934 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:03:38,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:03:39,082 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:03:39,085 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:03:39,296 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:03:39,305 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:03:39,305 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:03:39,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:39 BoogieIcfgContainer [2023-11-12 02:03:39,308 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:03:39,311 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:03:39,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:03:39,317 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:03:39,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:03:38" (1/3) ... [2023-11-12 02:03:39,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358ab32a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:03:39, skipping insertion in model container [2023-11-12 02:03:39,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:38" (2/3) ... [2023-11-12 02:03:39,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358ab32a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:03:39, skipping insertion in model container [2023-11-12 02:03:39,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:39" (3/3) ... [2023-11-12 02:03:39,321 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_16-traces-unprot2_true.i [2023-11-12 02:03:39,332 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:03:39,344 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:03:39,344 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:03:39,344 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:03:39,402 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:03:39,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 51 transitions, 106 flow [2023-11-12 02:03:39,489 INFO L124 PetriNetUnfolderBase]: 1/50 cut-off events. [2023-11-12 02:03:39,489 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:03:39,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2023-11-12 02:03:39,494 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 51 transitions, 106 flow [2023-11-12 02:03:39,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 39 transitions, 81 flow [2023-11-12 02:03:39,504 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:03:39,516 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 39 transitions, 81 flow [2023-11-12 02:03:39,520 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 39 transitions, 81 flow [2023-11-12 02:03:39,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 39 transitions, 81 flow [2023-11-12 02:03:39,543 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2023-11-12 02:03:39,543 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:03:39,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 39 events. 0/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-12 02:03:39,544 INFO L119 LiptonReduction]: Number of co-enabled transitions 60 [2023-11-12 02:03:41,419 INFO L134 LiptonReduction]: Checked pairs total: 36 [2023-11-12 02:03:41,419 INFO L136 LiptonReduction]: Total number of compositions: 35 [2023-11-12 02:03:41,436 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:03:41,443 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;@2f118eaf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:03:41,443 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-12 02:03:41,446 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:03:41,446 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-12 02:03:41,447 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:03:41,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:03:41,447 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:03:41,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-12 02:03:41,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:41,454 INFO L85 PathProgramCache]: Analyzing trace with hash 173682, now seen corresponding path program 1 times [2023-11-12 02:03:41,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:41,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185511532] [2023-11-12 02:03:41,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:41,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:41,705 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 02:03:41,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:41,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185511532] [2023-11-12 02:03:41,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185511532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:41,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:41,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:03:41,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487298854] [2023-11-12 02:03:41,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:41,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:03:41,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:41,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:03:41,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:03:41,765 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 86 [2023-11-12 02:03:41,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 8 places, 4 transitions, 11 flow. Second operand has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 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 02:03:41,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:03:41,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 86 [2023-11-12 02:03:41,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:03:41,793 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-12 02:03:41,794 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:03:41,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11 conditions, 3 events. 0/3 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 2/5 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-11-12 02:03:41,796 INFO L140 encePairwiseOnDemand]: 85/86 looper letters, 0 selfloop transitions, 0 changer transitions 3/3 dead transitions. [2023-11-12 02:03:41,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 8 places, 3 transitions, 15 flow [2023-11-12 02:03:41,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:03:41,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:03:41,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 100 transitions. [2023-11-12 02:03:41,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5813953488372093 [2023-11-12 02:03:41,815 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 100 transitions. [2023-11-12 02:03:41,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 100 transitions. [2023-11-12 02:03:41,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:03:41,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 100 transitions. [2023-11-12 02:03:41,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 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 02:03:41,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 02:03:41,838 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 02:03:41,840 INFO L175 Difference]: Start difference. First operand has 8 places, 4 transitions, 11 flow. Second operand 2 states and 100 transitions. [2023-11-12 02:03:41,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 8 places, 3 transitions, 15 flow [2023-11-12 02:03:41,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 7 places, 3 transitions, 14 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:03:41,845 INFO L231 Difference]: Finished difference. Result has 7 places, 0 transitions, 0 flow [2023-11-12 02:03:41,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=8, PETRI_DIFFERENCE_MINUEND_PLACES=6, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=7, PETRI_TRANSITIONS=0} [2023-11-12 02:03:41,854 INFO L281 CegarLoopForPetriNet]: 8 programPoint places, -1 predicate places. [2023-11-12 02:03:41,854 INFO L495 AbstractCegarLoop]: Abstraction has has 7 places, 0 transitions, 0 flow [2023-11-12 02:03:41,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 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 02:03:41,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-12 02:03:41,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-11-12 02:03:41,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:03:41,860 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 02:03:41,866 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:03:41,867 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:03:41,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:03:41 BasicIcfg [2023-11-12 02:03:41,885 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:03:41,886 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:03:41,886 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:03:41,886 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:03:41,887 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:39" (3/4) ... [2023-11-12 02:03:41,889 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:03:41,893 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-12 02:03:41,898 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-12 02:03:41,899 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 02:03:41,899 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:03:41,899 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:03:42,028 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:03:42,029 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:03:42,029 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:03:42,030 INFO L158 Benchmark]: Toolchain (without parser) took 3900.74ms. Allocated memory is still 174.1MB. Free memory was 140.6MB in the beginning and 142.8MB in the end (delta: -2.2MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. [2023-11-12 02:03:42,030 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 174.1MB. Free memory is still 150.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:03:42,031 INFO L158 Benchmark]: CACSL2BoogieTranslator took 621.17ms. Allocated memory is still 174.1MB. Free memory was 140.6MB in the beginning and 121.9MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:03:42,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.76ms. Allocated memory is still 174.1MB. Free memory was 121.3MB in the beginning and 119.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:03:42,033 INFO L158 Benchmark]: Boogie Preprocessor took 28.79ms. Allocated memory is still 174.1MB. Free memory was 119.8MB in the beginning and 118.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:03:42,033 INFO L158 Benchmark]: RCFGBuilder took 477.04ms. Allocated memory is still 174.1MB. Free memory was 118.3MB in the beginning and 106.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:03:42,034 INFO L158 Benchmark]: TraceAbstraction took 2574.17ms. Allocated memory is still 174.1MB. Free memory was 105.7MB in the beginning and 67.4MB in the end (delta: 38.4MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2023-11-12 02:03:42,036 INFO L158 Benchmark]: Witness Printer took 143.62ms. Allocated memory is still 174.1MB. Free memory was 67.4MB in the beginning and 142.8MB in the end (delta: -75.4MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2023-11-12 02:03:42,042 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 174.1MB. Free memory is still 150.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 621.17ms. Allocated memory is still 174.1MB. Free memory was 140.6MB in the beginning and 121.9MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.76ms. Allocated memory is still 174.1MB. Free memory was 121.3MB in the beginning and 119.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.79ms. Allocated memory is still 174.1MB. Free memory was 119.8MB in the beginning and 118.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 477.04ms. Allocated memory is still 174.1MB. Free memory was 118.3MB in the beginning and 106.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2574.17ms. Allocated memory is still 174.1MB. Free memory was 105.7MB in the beginning and 67.4MB in the end (delta: 38.4MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. * Witness Printer took 143.62ms. Allocated memory is still 174.1MB. Free memory was 67.4MB in the beginning and 142.8MB in the end (delta: -75.4MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 43 PlacesBefore, 8 PlacesAfterwards, 39 TransitionsBefore, 4 TransitionsAfterwards, 60 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 35 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 29, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 36, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 29, unknown conditional: 0, unknown unconditional: 29] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 56 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 2 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:03:42,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb26df97-d02e-4054-be50-ef2023a3d2c8/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