./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix017_power.opt_rmo.opt.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_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/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_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix017_power.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/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_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/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 c394bf0b454616c76d3ba114fe7f9b161b2a3a1a85dec23beec05d3a021c1c91 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:44:47,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:44:47,166 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:44:47,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:44:47,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:44:47,200 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:44:47,201 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:44:47,202 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:44:47,203 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:44:47,203 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:44:47,204 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:44:47,205 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:44:47,205 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:44:47,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:44:47,207 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:44:47,207 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:44:47,208 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:44:47,208 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:44:47,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:44:47,210 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:44:47,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:44:47,211 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:44:47,212 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:44:47,212 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:44:47,213 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:44:47,213 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:44:47,214 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:44:47,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:44:47,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:44:47,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:44:47,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:44:47,217 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:44:47,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:44:47,218 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:44:47,219 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:44:47,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:44:47,220 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:44:47,220 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:44:47,221 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:44:47,221 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:44:47,222 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:44:47,222 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_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c394bf0b454616c76d3ba114fe7f9b161b2a3a1a85dec23beec05d3a021c1c91 [2023-11-19 07:44:47,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:44:47,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:44:47,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:44:47,501 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:44:47,502 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:44:47,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix017_power.opt_rmo.opt.i [2023-11-19 07:44:50,798 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:44:51,122 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:44:51,128 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/sv-benchmarks/c/pthread-wmm/mix017_power.opt_rmo.opt.i [2023-11-19 07:44:51,145 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/bin/uautomizer-verify-uCwYo4JHxu/data/0edcd8004/2daf65cd13514cb3abc85ad4d7e1ab9a/FLAGdc676b4c9 [2023-11-19 07:44:51,160 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/bin/uautomizer-verify-uCwYo4JHxu/data/0edcd8004/2daf65cd13514cb3abc85ad4d7e1ab9a [2023-11-19 07:44:51,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:44:51,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:44:51,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:44:51,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:44:51,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:44:51,171 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:51" (1/1) ... [2023-11-19 07:44:51,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed70585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:51, skipping insertion in model container [2023-11-19 07:44:51,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:51" (1/1) ... [2023-11-19 07:44:51,246 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:44:51,807 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:44:51,825 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:44:51,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:44:51,989 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:44:51,990 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:44:51,998 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:44:51,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:51 WrapperNode [2023-11-19 07:44:51,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:44:52,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:44:52,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:44:52,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:44:52,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:51" (1/1) ... [2023-11-19 07:44:52,061 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:51" (1/1) ... [2023-11-19 07:44:52,121 INFO L138 Inliner]: procedures = 177, calls = 70, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 153 [2023-11-19 07:44:52,121 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:44:52,122 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:44:52,122 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:44:52,122 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:44:52,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:51" (1/1) ... [2023-11-19 07:44:52,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:51" (1/1) ... [2023-11-19 07:44:52,151 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:51" (1/1) ... [2023-11-19 07:44:52,151 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:51" (1/1) ... [2023-11-19 07:44:52,164 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:51" (1/1) ... [2023-11-19 07:44:52,167 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:51" (1/1) ... [2023-11-19 07:44:52,171 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:51" (1/1) ... [2023-11-19 07:44:52,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:51" (1/1) ... [2023-11-19 07:44:52,178 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:44:52,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:44:52,180 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:44:52,180 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:44:52,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:51" (1/1) ... [2023-11-19 07:44:52,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:44:52,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:52,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:44:52,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:44:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:44:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:44:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:44:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:44:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:44:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:44:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:44:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:44:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:44:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:44:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:44:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 07:44:52,300 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 07:44:52,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:44:52,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:44:52,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:44:52,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:44:52,304 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:44:52,523 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:44:52,529 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:44:53,023 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:44:53,182 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:44:53,182 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:44:53,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:53 BoogieIcfgContainer [2023-11-19 07:44:53,187 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:44:53,190 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:44:53,190 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:44:53,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:44:53,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:44:51" (1/3) ... [2023-11-19 07:44:53,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453b5d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:53, skipping insertion in model container [2023-11-19 07:44:53,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:51" (2/3) ... [2023-11-19 07:44:53,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453b5d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:53, skipping insertion in model container [2023-11-19 07:44:53,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:53" (3/3) ... [2023-11-19 07:44:53,199 INFO L112 eAbstractionObserver]: Analyzing ICFG mix017_power.opt_rmo.opt.i [2023-11-19 07:44:53,211 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:44:53,222 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:44:53,222 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:44:53,223 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:44:53,318 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:44:53,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 146 transitions, 308 flow [2023-11-19 07:44:53,443 INFO L124 PetriNetUnfolderBase]: 3/142 cut-off events. [2023-11-19 07:44:53,443 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:44:53,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 142 events. 3/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 111 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2023-11-19 07:44:53,456 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 146 transitions, 308 flow [2023-11-19 07:44:53,463 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 152 places, 142 transitions, 296 flow [2023-11-19 07:44:53,470 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:44:53,489 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 142 transitions, 296 flow [2023-11-19 07:44:53,492 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 142 transitions, 296 flow [2023-11-19 07:44:53,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 142 transitions, 296 flow [2023-11-19 07:44:53,571 INFO L124 PetriNetUnfolderBase]: 3/142 cut-off events. [2023-11-19 07:44:53,571 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:44:53,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 142 events. 3/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 111 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2023-11-19 07:44:53,579 INFO L119 LiptonReduction]: Number of co-enabled transitions 4668 [2023-11-19 07:44:59,709 INFO L134 LiptonReduction]: Checked pairs total: 15307 [2023-11-19 07:44:59,710 INFO L136 LiptonReduction]: Total number of compositions: 126 [2023-11-19 07:44:59,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:44:59,736 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;@6acf736b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:44:59,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-19 07:44:59,741 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:44:59,741 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 07:44:59,742 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:44:59,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:44:59,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:44:59,743 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:44:59,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:59,750 INFO L85 PathProgramCache]: Analyzing trace with hash 615381250, now seen corresponding path program 1 times [2023-11-19 07:44:59,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:59,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110029960] [2023-11-19 07:44:59,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:59,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:00,073 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 07:45:00,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:00,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110029960] [2023-11-19 07:45:00,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110029960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:00,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:00,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:45:00,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381190126] [2023-11-19 07:45:00,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:00,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:45:00,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:00,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:45:00,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:45:00,150 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 272 [2023-11-19 07:45:00,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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 07:45:00,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:45:00,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 272 [2023-11-19 07:45:00,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:45:03,126 INFO L124 PetriNetUnfolderBase]: 10681/15461 cut-off events. [2023-11-19 07:45:03,127 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2023-11-19 07:45:03,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31063 conditions, 15461 events. 10681/15461 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 853. Compared 97882 event pairs, 4861 based on Foata normal form. 0/11053 useless extension candidates. Maximal degree in co-relation 31051. Up to 8491 conditions per place. [2023-11-19 07:45:03,301 INFO L140 encePairwiseOnDemand]: 258/272 looper letters, 45 selfloop transitions, 9 changer transitions 0/58 dead transitions. [2023-11-19 07:45:03,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 58 transitions, 245 flow [2023-11-19 07:45:03,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:45:03,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:45:03,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 420 transitions. [2023-11-19 07:45:03,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5147058823529411 [2023-11-19 07:45:03,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 420 transitions. [2023-11-19 07:45:03,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 420 transitions. [2023-11-19 07:45:03,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:45:03,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 420 transitions. [2023-11-19 07:45:03,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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 07:45:03,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 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 07:45:03,345 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 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 07:45:03,347 INFO L175 Difference]: Start difference. First operand has 47 places, 35 transitions, 82 flow. Second operand 3 states and 420 transitions. [2023-11-19 07:45:03,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 58 transitions, 245 flow [2023-11-19 07:45:03,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 58 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:45:03,363 INFO L231 Difference]: Finished difference. Result has 47 places, 42 transitions, 152 flow [2023-11-19 07:45:03,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=47, PETRI_TRANSITIONS=42} [2023-11-19 07:45:03,371 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 0 predicate places. [2023-11-19 07:45:03,371 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 42 transitions, 152 flow [2023-11-19 07:45:03,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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 07:45:03,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:45:03,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:45:03,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:45:03,373 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:45:03,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:03,374 INFO L85 PathProgramCache]: Analyzing trace with hash 615381249, now seen corresponding path program 1 times [2023-11-19 07:45:03,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:03,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844117173] [2023-11-19 07:45:03,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:03,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:03,480 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 07:45:03,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:03,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844117173] [2023-11-19 07:45:03,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844117173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:03,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:03,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:45:03,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099295114] [2023-11-19 07:45:03,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:03,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:45:03,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:03,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:45:03,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:45:03,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 272 [2023-11-19 07:45:03,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 42 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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 07:45:03,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:45:03,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 272 [2023-11-19 07:45:03,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:45:04,662 INFO L124 PetriNetUnfolderBase]: 4063/5840 cut-off events. [2023-11-19 07:45:04,662 INFO L125 PetriNetUnfolderBase]: For 2973/2973 co-relation queries the response was YES. [2023-11-19 07:45:04,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14308 conditions, 5840 events. 4063/5840 cut-off events. For 2973/2973 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 30887 event pairs, 3637 based on Foata normal form. 1299/6049 useless extension candidates. Maximal degree in co-relation 14296. Up to 5686 conditions per place. [2023-11-19 07:45:04,729 INFO L140 encePairwiseOnDemand]: 267/272 looper letters, 29 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2023-11-19 07:45:04,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 34 transitions, 172 flow [2023-11-19 07:45:04,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:45:04,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:45:04,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2023-11-19 07:45:04,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47794117647058826 [2023-11-19 07:45:04,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2023-11-19 07:45:04,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2023-11-19 07:45:04,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:45:04,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2023-11-19 07:45:04,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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 07:45:04,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 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 07:45:04,746 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 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 07:45:04,746 INFO L175 Difference]: Start difference. First operand has 47 places, 42 transitions, 152 flow. Second operand 3 states and 390 transitions. [2023-11-19 07:45:04,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 34 transitions, 172 flow [2023-11-19 07:45:04,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 34 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:45:04,750 INFO L231 Difference]: Finished difference. Result has 43 places, 34 transitions, 104 flow [2023-11-19 07:45:04,750 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2023-11-19 07:45:04,752 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -4 predicate places. [2023-11-19 07:45:04,752 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 34 transitions, 104 flow [2023-11-19 07:45:04,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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 07:45:04,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:45:04,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:45:04,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:45:04,754 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:45:04,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:04,756 INFO L85 PathProgramCache]: Analyzing trace with hash 453560379, now seen corresponding path program 1 times [2023-11-19 07:45:04,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:04,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298143037] [2023-11-19 07:45:04,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:04,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:04,936 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 07:45:04,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:04,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298143037] [2023-11-19 07:45:04,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298143037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:04,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:04,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:45:04,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827009682] [2023-11-19 07:45:04,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:04,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:45:04,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:04,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:45:04,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:45:04,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 272 [2023-11-19 07:45:04,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 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 07:45:04,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:45:04,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 272 [2023-11-19 07:45:04,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:45:05,814 INFO L124 PetriNetUnfolderBase]: 2586/3738 cut-off events. [2023-11-19 07:45:05,814 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2023-11-19 07:45:05,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8715 conditions, 3738 events. 2586/3738 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 18382 event pairs, 613 based on Foata normal form. 0/3467 useless extension candidates. Maximal degree in co-relation 8707. Up to 1477 conditions per place. [2023-11-19 07:45:05,841 INFO L140 encePairwiseOnDemand]: 263/272 looper letters, 55 selfloop transitions, 9 changer transitions 0/68 dead transitions. [2023-11-19 07:45:05,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 68 transitions, 318 flow [2023-11-19 07:45:05,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:45:05,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:45:05,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 548 transitions. [2023-11-19 07:45:05,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5036764705882353 [2023-11-19 07:45:05,844 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 548 transitions. [2023-11-19 07:45:05,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 548 transitions. [2023-11-19 07:45:05,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:45:05,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 548 transitions. [2023-11-19 07:45:05,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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 07:45:05,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 272.0) internal successors, (1360), 5 states have internal predecessors, (1360), 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 07:45:05,852 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 272.0) internal successors, (1360), 5 states have internal predecessors, (1360), 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 07:45:05,852 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 104 flow. Second operand 4 states and 548 transitions. [2023-11-19 07:45:05,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 68 transitions, 318 flow [2023-11-19 07:45:05,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 68 transitions, 317 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:45:05,855 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 161 flow [2023-11-19 07:45:05,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=161, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2023-11-19 07:45:05,857 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2023-11-19 07:45:05,857 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 161 flow [2023-11-19 07:45:05,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 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 07:45:05,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:45:05,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:45:05,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:45:05,859 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:45:05,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:05,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1979447234, now seen corresponding path program 1 times [2023-11-19 07:45:05,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:05,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072424353] [2023-11-19 07:45:05,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:05,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:06,091 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 07:45:06,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:06,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072424353] [2023-11-19 07:45:06,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072424353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:06,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:06,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:45:06,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20487376] [2023-11-19 07:45:06,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:06,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:45:06,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:06,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:45:06,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:45:06,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 272 [2023-11-19 07:45:06,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 161 flow. Second operand has 5 states, 5 states have (on average 122.8) internal successors, (614), 5 states have internal predecessors, (614), 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 07:45:06,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:45:06,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 272 [2023-11-19 07:45:06,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:45:06,872 INFO L124 PetriNetUnfolderBase]: 2307/3297 cut-off events. [2023-11-19 07:45:06,873 INFO L125 PetriNetUnfolderBase]: For 2124/2124 co-relation queries the response was YES. [2023-11-19 07:45:06,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8935 conditions, 3297 events. 2307/3297 cut-off events. For 2124/2124 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 15776 event pairs, 569 based on Foata normal form. 0/3212 useless extension candidates. Maximal degree in co-relation 8925. Up to 1345 conditions per place. [2023-11-19 07:45:06,903 INFO L140 encePairwiseOnDemand]: 263/272 looper letters, 63 selfloop transitions, 13 changer transitions 4/84 dead transitions. [2023-11-19 07:45:06,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 84 transitions, 441 flow [2023-11-19 07:45:06,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:45:06,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:45:06,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 684 transitions. [2023-11-19 07:45:06,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5029411764705882 [2023-11-19 07:45:06,908 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 684 transitions. [2023-11-19 07:45:06,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 684 transitions. [2023-11-19 07:45:06,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:45:06,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 684 transitions. [2023-11-19 07:45:06,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.8) internal successors, (684), 5 states have internal predecessors, (684), 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 07:45:06,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 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 07:45:06,919 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 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 07:45:06,920 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 161 flow. Second operand 5 states and 684 transitions. [2023-11-19 07:45:06,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 84 transitions, 441 flow [2023-11-19 07:45:06,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 84 transitions, 423 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-19 07:45:06,928 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 185 flow [2023-11-19 07:45:06,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=185, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2023-11-19 07:45:06,930 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2023-11-19 07:45:06,930 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 185 flow [2023-11-19 07:45:06,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 122.8) internal successors, (614), 5 states have internal predecessors, (614), 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 07:45:06,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:45:06,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 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 07:45:06,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:45:06,932 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:45:06,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:06,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1608488808, now seen corresponding path program 1 times [2023-11-19 07:45:06,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:06,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73333733] [2023-11-19 07:45:06,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:06,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:07,109 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 07:45:07,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:07,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73333733] [2023-11-19 07:45:07,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73333733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:07,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:07,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:45:07,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785645120] [2023-11-19 07:45:07,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:07,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:45:07,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:07,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:45:07,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:45:07,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 272 [2023-11-19 07:45:07,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 185 flow. Second operand has 6 states, 6 states have (on average 123.16666666666667) internal successors, (739), 6 states have internal predecessors, (739), 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 07:45:07,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:45:07,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 272 [2023-11-19 07:45:07,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:45:07,783 INFO L124 PetriNetUnfolderBase]: 2280/3250 cut-off events. [2023-11-19 07:45:07,784 INFO L125 PetriNetUnfolderBase]: For 2658/2658 co-relation queries the response was YES. [2023-11-19 07:45:07,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9036 conditions, 3250 events. 2280/3250 cut-off events. For 2658/2658 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 15557 event pairs, 569 based on Foata normal form. 16/3197 useless extension candidates. Maximal degree in co-relation 9025. Up to 1345 conditions per place. [2023-11-19 07:45:07,801 INFO L140 encePairwiseOnDemand]: 263/272 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2023-11-19 07:45:07,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 76 transitions, 393 flow [2023-11-19 07:45:07,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:45:07,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:45:07,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 796 transitions. [2023-11-19 07:45:07,806 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4877450980392157 [2023-11-19 07:45:07,806 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 796 transitions. [2023-11-19 07:45:07,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 796 transitions. [2023-11-19 07:45:07,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:45:07,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 796 transitions. [2023-11-19 07:45:07,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 132.66666666666666) internal successors, (796), 6 states have internal predecessors, (796), 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 07:45:07,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 272.0) internal successors, (1904), 7 states have internal predecessors, (1904), 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 07:45:07,818 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 272.0) internal successors, (1904), 7 states have internal predecessors, (1904), 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 07:45:07,818 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 185 flow. Second operand 6 states and 796 transitions. [2023-11-19 07:45:07,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 76 transitions, 393 flow [2023-11-19 07:45:07,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 76 transitions, 338 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-19 07:45:07,919 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-11-19 07:45:07,919 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-11-19 07:45:07,921 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2023-11-19 07:45:07,922 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-11-19 07:45:07,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.16666666666667) internal successors, (739), 6 states have internal predecessors, (739), 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 07:45:07,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-19 07:45:07,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-19 07:45:07,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-19 07:45:07,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-19 07:45:07,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-19 07:45:07,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-19 07:45:07,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-19 07:45:07,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-19 07:45:07,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-19 07:45:07,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-19 07:45:07,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-19 07:45:07,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-19 07:45:07,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-19 07:45:07,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-19 07:45:07,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-19 07:45:07,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-19 07:45:07,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-19 07:45:07,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-19 07:45:07,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-19 07:45:07,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-19 07:45:07,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:45:07,935 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 07:45:07,943 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:45:07,943 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:45:07,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:45:07 BasicIcfg [2023-11-19 07:45:07,948 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:45:07,949 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:45:07,949 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:45:07,949 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:45:07,955 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:53" (3/4) ... [2023-11-19 07:45:07,957 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:45:07,961 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:45:07,961 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:45:07,961 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 07:45:07,961 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-19 07:45:07,968 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-19 07:45:07,969 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 07:45:07,969 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:45:07,970 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:45:08,090 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:45:08,091 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:45:08,091 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:45:08,092 INFO L158 Benchmark]: Toolchain (without parser) took 16928.14ms. Allocated memory was 142.6MB in the beginning and 641.7MB in the end (delta: 499.1MB). Free memory was 103.6MB in the beginning and 177.8MB in the end (delta: -74.2MB). Peak memory consumption was 425.8MB. Max. memory is 16.1GB. [2023-11-19 07:45:08,092 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:45:08,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 834.68ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 80.1MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:45:08,093 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.71ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 77.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:45:08,094 INFO L158 Benchmark]: Boogie Preprocessor took 56.80ms. Allocated memory is still 142.6MB. Free memory was 77.6MB in the beginning and 75.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:45:08,094 INFO L158 Benchmark]: RCFGBuilder took 1007.59ms. Allocated memory is still 142.6MB. Free memory was 75.5MB in the beginning and 82.0MB in the end (delta: -6.5MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-11-19 07:45:08,094 INFO L158 Benchmark]: TraceAbstraction took 14758.43ms. Allocated memory was 142.6MB in the beginning and 641.7MB in the end (delta: 499.1MB). Free memory was 81.2MB in the beginning and 183.0MB in the end (delta: -101.8MB). Peak memory consumption was 396.9MB. Max. memory is 16.1GB. [2023-11-19 07:45:08,095 INFO L158 Benchmark]: Witness Printer took 142.63ms. Allocated memory is still 641.7MB. Free memory was 183.0MB in the beginning and 177.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:45:08,097 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 834.68ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 80.1MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.71ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 77.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.80ms. Allocated memory is still 142.6MB. Free memory was 77.6MB in the beginning and 75.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1007.59ms. Allocated memory is still 142.6MB. Free memory was 75.5MB in the beginning and 82.0MB in the end (delta: -6.5MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * TraceAbstraction took 14758.43ms. Allocated memory was 142.6MB in the beginning and 641.7MB in the end (delta: 499.1MB). Free memory was 81.2MB in the beginning and 183.0MB in the end (delta: -101.8MB). Peak memory consumption was 396.9MB. Max. memory is 16.1GB. * Witness Printer took 142.63ms. Allocated memory is still 641.7MB. Free memory was 183.0MB in the beginning and 177.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.2s, 152 PlacesBefore, 47 PlacesAfterwards, 142 TransitionsBefore, 35 TransitionsAfterwards, 4668 CoEnabledTransitionPairs, 8 FixpointIterations, 43 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 2 ChoiceCompositions, 126 TotalNumberOfCompositions, 15307 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6109, independent: 5734, independent conditional: 0, independent unconditional: 5734, dependent: 375, dependent conditional: 0, dependent unconditional: 375, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2556, independent: 2489, independent conditional: 0, independent unconditional: 2489, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6109, independent: 3245, independent conditional: 0, independent unconditional: 3245, dependent: 308, dependent conditional: 0, dependent unconditional: 308, unknown: 2556, unknown conditional: 0, unknown unconditional: 2556] , Statistics on independence cache: Total cache size (in pairs): 189, Positive cache size: 165, Positive conditional cache size: 0, Positive unconditional cache size: 165, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 790]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 790]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 843]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 843]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 189 locations, 20 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: 14.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 192 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 177 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 336 IncrementalHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 7 mSDtfsCounter, 336 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=185occurred in iteration=4, InterpolantAutomatonStates: 21, 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, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:45:08,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf2edc9-e68d-40f6-935a-e2eb8f49ed8d/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