./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix030_tso.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_bf553a04-741c-4ead-a04f-c438a925cbd4/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf553a04-741c-4ead-a04f-c438a925cbd4/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_bf553a04-741c-4ead-a04f-c438a925cbd4/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf553a04-741c-4ead-a04f-c438a925cbd4/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix030_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf553a04-741c-4ead-a04f-c438a925cbd4/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_bf553a04-741c-4ead-a04f-c438a925cbd4/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 20a2c57970e5e291ffc10826c9a5fbe3296a1e55ae86cfd2b786718aae571bfa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:58:11,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:58:11,102 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf553a04-741c-4ead-a04f-c438a925cbd4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:58:11,119 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:58:11,120 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:58:11,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:58:11,162 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:58:11,163 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:58:11,164 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:58:11,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:58:11,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:58:11,171 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:58:11,171 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:58:11,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:58:11,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:58:11,174 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:58:11,174 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:58:11,175 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:58:11,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:58:11,176 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:58:11,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:58:11,177 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:58:11,177 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:58:11,178 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:58:11,178 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:58:11,179 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:58:11,179 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:58:11,180 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:58:11,181 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:58:11,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:58:11,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:11,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:58:11,183 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:58:11,184 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:58:11,184 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:58:11,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:58:11,184 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:58:11,185 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:58:11,185 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:58:11,185 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:58:11,186 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:58:11,186 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_bf553a04-741c-4ead-a04f-c438a925cbd4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf553a04-741c-4ead-a04f-c438a925cbd4/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20a2c57970e5e291ffc10826c9a5fbe3296a1e55ae86cfd2b786718aae571bfa [2023-11-19 07:58:11,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:58:11,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:58:11,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:58:11,534 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:58:11,534 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:58:11,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf553a04-741c-4ead-a04f-c438a925cbd4/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix030_tso.i [2023-11-19 07:58:14,750 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:58:15,119 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:58:15,122 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf553a04-741c-4ead-a04f-c438a925cbd4/sv-benchmarks/c/pthread-wmm/mix030_tso.i [2023-11-19 07:58:15,141 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf553a04-741c-4ead-a04f-c438a925cbd4/bin/uautomizer-verify-uCwYo4JHxu/data/1bb0baaef/e3ba59b0a5864631890082c7df424b5a/FLAGf63c52a80 [2023-11-19 07:58:15,156 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf553a04-741c-4ead-a04f-c438a925cbd4/bin/uautomizer-verify-uCwYo4JHxu/data/1bb0baaef/e3ba59b0a5864631890082c7df424b5a [2023-11-19 07:58:15,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:58:15,160 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:58:15,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:15,162 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:58:15,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:58:15,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:15" (1/1) ... [2023-11-19 07:58:15,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4493096e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:15, skipping insertion in model container [2023-11-19 07:58:15,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:15" (1/1) ... [2023-11-19 07:58:15,235 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:58:15,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:15,763 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:58:15,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:15,910 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:58:15,910 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:58:15,918 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:58:15,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:15 WrapperNode [2023-11-19 07:58:15,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:15,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:15,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:58:15,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:58:15,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:15" (1/1) ... [2023-11-19 07:58:15,966 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:15" (1/1) ... [2023-11-19 07:58:16,004 INFO L138 Inliner]: procedures = 177, calls = 70, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 187 [2023-11-19 07:58:16,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:16,005 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:58:16,005 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:58:16,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:58:16,015 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:15" (1/1) ... [2023-11-19 07:58:16,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:15" (1/1) ... [2023-11-19 07:58:16,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:15" (1/1) ... [2023-11-19 07:58:16,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:15" (1/1) ... [2023-11-19 07:58:16,038 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:15" (1/1) ... [2023-11-19 07:58:16,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:15" (1/1) ... [2023-11-19 07:58:16,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:15" (1/1) ... [2023-11-19 07:58:16,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:15" (1/1) ... [2023-11-19 07:58:16,052 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:58:16,053 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:58:16,053 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:58:16,053 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:58:16,054 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:15" (1/1) ... [2023-11-19 07:58:16,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:16,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf553a04-741c-4ead-a04f-c438a925cbd4/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:16,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf553a04-741c-4ead-a04f-c438a925cbd4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:16,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf553a04-741c-4ead-a04f-c438a925cbd4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:58:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:58:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:58:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:58:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:58:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:58:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:58:16,136 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:58:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:58:16,136 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:58:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:58:16,136 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:58:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 07:58:16,137 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 07:58:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:58:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:58:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:58:16,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:58:16,142 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 07:58:16,288 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:58:16,290 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:58:16,763 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:58:16,969 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:58:16,969 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:58:16,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:16 BoogieIcfgContainer [2023-11-19 07:58:16,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:58:16,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:58:16,981 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:58:16,984 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:58:16,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:15" (1/3) ... [2023-11-19 07:58:16,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6a8e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:16, skipping insertion in model container [2023-11-19 07:58:16,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:15" (2/3) ... [2023-11-19 07:58:16,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6a8e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:16, skipping insertion in model container [2023-11-19 07:58:16,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:16" (3/3) ... [2023-11-19 07:58:16,990 INFO L112 eAbstractionObserver]: Analyzing ICFG mix030_tso.i [2023-11-19 07:58:17,000 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:58:17,011 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:58:17,012 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:58:17,012 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:58:17,094 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:58:17,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 143 transitions, 302 flow [2023-11-19 07:58:17,240 INFO L124 PetriNetUnfolderBase]: 3/139 cut-off events. [2023-11-19 07:58:17,240 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:58:17,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 3/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2023-11-19 07:58:17,246 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 143 transitions, 302 flow [2023-11-19 07:58:17,256 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 139 transitions, 290 flow [2023-11-19 07:58:17,260 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:58:17,282 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 139 transitions, 290 flow [2023-11-19 07:58:17,287 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 139 transitions, 290 flow [2023-11-19 07:58:17,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 139 transitions, 290 flow [2023-11-19 07:58:17,354 INFO L124 PetriNetUnfolderBase]: 3/139 cut-off events. [2023-11-19 07:58:17,354 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:58:17,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 3/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2023-11-19 07:58:17,363 INFO L119 LiptonReduction]: Number of co-enabled transitions 4668 [2023-11-19 07:58:22,509 INFO L134 LiptonReduction]: Checked pairs total: 14335 [2023-11-19 07:58:22,509 INFO L136 LiptonReduction]: Total number of compositions: 117 [2023-11-19 07:58:22,540 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:58:22,548 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;@6bbcff7d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:58:22,549 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-19 07:58:22,553 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:58:22,554 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 07:58:22,554 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:58:22,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:58:22,555 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:58:22,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:58:22,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:22,561 INFO L85 PathProgramCache]: Analyzing trace with hash 632837332, now seen corresponding path program 1 times [2023-11-19 07:58:22,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:22,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080327591] [2023-11-19 07:58:22,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:22,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:22,882 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 07:58:22,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:22,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080327591] [2023-11-19 07:58:22,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080327591] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:22,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:22,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:58:22,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942890517] [2023-11-19 07:58:22,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:22,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:22,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:22,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:22,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:22,952 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 260 [2023-11-19 07:58:22,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 07:58:22,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:58:22,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 260 [2023-11-19 07:58:22,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:58:25,786 INFO L124 PetriNetUnfolderBase]: 12064/16325 cut-off events. [2023-11-19 07:58:25,786 INFO L125 PetriNetUnfolderBase]: For 123/123 co-relation queries the response was YES. [2023-11-19 07:58:25,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32768 conditions, 16325 events. 12064/16325 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 82674 event pairs, 12064 based on Foata normal form. 0/13078 useless extension candidates. Maximal degree in co-relation 32756. Up to 16125 conditions per place. [2023-11-19 07:58:26,019 INFO L140 encePairwiseOnDemand]: 254/260 looper letters, 28 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2023-11-19 07:58:26,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 31 transitions, 132 flow [2023-11-19 07:58:26,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:26,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:58:26,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2023-11-19 07:58:26,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4897435897435897 [2023-11-19 07:58:26,043 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2023-11-19 07:58:26,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2023-11-19 07:58:26,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:58:26,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2023-11-19 07:58:26,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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 07:58:26,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 07:58:26,066 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 07:58:26,068 INFO L175 Difference]: Start difference. First operand has 48 places, 36 transitions, 84 flow. Second operand 3 states and 382 transitions. [2023-11-19 07:58:26,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 31 transitions, 132 flow [2023-11-19 07:58:26,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 31 transitions, 128 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:58:26,079 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 72 flow [2023-11-19 07:58:26,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2023-11-19 07:58:26,087 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -6 predicate places. [2023-11-19 07:58:26,087 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 72 flow [2023-11-19 07:58:26,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 07:58:26,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:58:26,088 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:58:26,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:58:26,089 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:58:26,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:26,089 INFO L85 PathProgramCache]: Analyzing trace with hash 632837333, now seen corresponding path program 1 times [2023-11-19 07:58:26,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:26,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541825235] [2023-11-19 07:58:26,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:26,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:26,219 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 07:58:26,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:26,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541825235] [2023-11-19 07:58:26,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541825235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:26,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:26,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:58:26,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8584846] [2023-11-19 07:58:26,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:26,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:26,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:26,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:26,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:26,228 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 260 [2023-11-19 07:58:26,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 07:58:26,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:58:26,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 260 [2023-11-19 07:58:26,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:58:27,933 INFO L124 PetriNetUnfolderBase]: 7784/10767 cut-off events. [2023-11-19 07:58:27,933 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:58:27,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21688 conditions, 10767 events. 7784/10767 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 55636 event pairs, 2133 based on Foata normal form. 0/9300 useless extension candidates. Maximal degree in co-relation 21682. Up to 8563 conditions per place. [2023-11-19 07:58:28,017 INFO L140 encePairwiseOnDemand]: 251/260 looper letters, 47 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2023-11-19 07:58:28,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 54 transitions, 228 flow [2023-11-19 07:58:28,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:28,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:58:28,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2023-11-19 07:58:28,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.517948717948718 [2023-11-19 07:58:28,021 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 404 transitions. [2023-11-19 07:58:28,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 404 transitions. [2023-11-19 07:58:28,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:58:28,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 404 transitions. [2023-11-19 07:58:28,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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 07:58:28,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 07:58:28,028 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 07:58:28,029 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 72 flow. Second operand 3 states and 404 transitions. [2023-11-19 07:58:28,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 54 transitions, 228 flow [2023-11-19 07:58:28,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 54 transitions, 227 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:58:28,031 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 110 flow [2023-11-19 07:58:28,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2023-11-19 07:58:28,033 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -4 predicate places. [2023-11-19 07:58:28,033 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 110 flow [2023-11-19 07:58:28,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 07:58:28,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:58:28,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:28,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:58:28,035 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 07:58:28,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:28,036 INFO L85 PathProgramCache]: Analyzing trace with hash -276307797, now seen corresponding path program 1 times [2023-11-19 07:58:28,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:28,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14249644] [2023-11-19 07:58:28,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:28,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:28,125 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 07:58:28,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:28,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14249644] [2023-11-19 07:58:28,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14249644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:28,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:28,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:58:28,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783072421] [2023-11-19 07:58:28,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:28,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:28,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:28,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:28,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:28,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 260 [2023-11-19 07:58:28,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 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 07:58:28,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:58:28,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 260 [2023-11-19 07:58:28,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:58:29,503 INFO L124 PetriNetUnfolderBase]: 5330/7422 cut-off events. [2023-11-19 07:58:29,503 INFO L125 PetriNetUnfolderBase]: For 662/662 co-relation queries the response was YES. [2023-11-19 07:58:29,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17672 conditions, 7422 events. 5330/7422 cut-off events. For 662/662 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 36631 event pairs, 1569 based on Foata normal form. 0/7087 useless extension candidates. Maximal degree in co-relation 17664. Up to 2826 conditions per place. [2023-11-19 07:58:29,560 INFO L140 encePairwiseOnDemand]: 251/260 looper letters, 64 selfloop transitions, 9 changer transitions 0/75 dead transitions. [2023-11-19 07:58:29,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 75 transitions, 354 flow [2023-11-19 07:58:29,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:58:29,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:58:29,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 541 transitions. [2023-11-19 07:58:29,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5201923076923077 [2023-11-19 07:58:29,564 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 541 transitions. [2023-11-19 07:58:29,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 541 transitions. [2023-11-19 07:58:29,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:58:29,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 541 transitions. [2023-11-19 07:58:29,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 135.25) internal successors, (541), 4 states have internal predecessors, (541), 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 07:58:29,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 260.0) internal successors, (1300), 5 states have internal predecessors, (1300), 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 07:58:29,571 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 260.0) internal successors, (1300), 5 states have internal predecessors, (1300), 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 07:58:29,572 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 110 flow. Second operand 4 states and 541 transitions. [2023-11-19 07:58:29,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 75 transitions, 354 flow [2023-11-19 07:58:29,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 75 transitions, 349 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:58:29,578 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 163 flow [2023-11-19 07:58:29,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-11-19 07:58:29,580 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-19 07:58:29,580 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 163 flow [2023-11-19 07:58:29,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 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 07:58:29,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:58:29,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:29,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:58:29,587 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 07:58:29,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:29,588 INFO L85 PathProgramCache]: Analyzing trace with hash -62404915, now seen corresponding path program 1 times [2023-11-19 07:58:29,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:29,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535327777] [2023-11-19 07:58:29,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:29,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:29,814 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 07:58:29,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:29,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535327777] [2023-11-19 07:58:29,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535327777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:29,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:29,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:29,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098895598] [2023-11-19 07:58:29,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:29,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:58:29,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:29,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:58:29,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:58:29,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 260 [2023-11-19 07:58:29,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 163 flow. Second operand has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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 07:58:29,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:58:29,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 260 [2023-11-19 07:58:29,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:58:30,902 INFO L124 PetriNetUnfolderBase]: 4919/6780 cut-off events. [2023-11-19 07:58:30,902 INFO L125 PetriNetUnfolderBase]: For 4215/4215 co-relation queries the response was YES. [2023-11-19 07:58:30,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17644 conditions, 6780 events. 4919/6780 cut-off events. For 4215/4215 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 32859 event pairs, 1514 based on Foata normal form. 0/6706 useless extension candidates. Maximal degree in co-relation 17634. Up to 2826 conditions per place. [2023-11-19 07:58:30,958 INFO L140 encePairwiseOnDemand]: 251/260 looper letters, 75 selfloop transitions, 13 changer transitions 4/94 dead transitions. [2023-11-19 07:58:30,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 94 transitions, 485 flow [2023-11-19 07:58:30,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:58:30,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:58:30,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 676 transitions. [2023-11-19 07:58:30,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.52 [2023-11-19 07:58:30,963 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 676 transitions. [2023-11-19 07:58:30,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 676 transitions. [2023-11-19 07:58:30,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:58:30,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 676 transitions. [2023-11-19 07:58:30,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 135.2) internal successors, (676), 5 states have internal predecessors, (676), 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 07:58:30,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 260.0) internal successors, (1560), 6 states have internal predecessors, (1560), 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 07:58:30,972 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 260.0) internal successors, (1560), 6 states have internal predecessors, (1560), 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 07:58:30,972 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 163 flow. Second operand 5 states and 676 transitions. [2023-11-19 07:58:30,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 94 transitions, 485 flow [2023-11-19 07:58:30,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 94 transitions, 467 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-19 07:58:31,001 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 187 flow [2023-11-19 07:58:31,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=187, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2023-11-19 07:58:31,004 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2023-11-19 07:58:31,004 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 187 flow [2023-11-19 07:58:31,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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 07:58:31,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:58:31,006 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 07:58:31,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:58:31,006 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 07:58:31,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:31,007 INFO L85 PathProgramCache]: Analyzing trace with hash 198036376, now seen corresponding path program 1 times [2023-11-19 07:58:31,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:31,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556467927] [2023-11-19 07:58:31,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:31,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:31,258 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 07:58:31,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:31,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556467927] [2023-11-19 07:58:31,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556467927] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:31,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:31,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:58:31,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430205696] [2023-11-19 07:58:31,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:31,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:58:31,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:31,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:58:31,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:58:31,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 260 [2023-11-19 07:58:31,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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 07:58:31,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:58:31,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 260 [2023-11-19 07:58:31,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:58:32,448 INFO L124 PetriNetUnfolderBase]: 4884/6720 cut-off events. [2023-11-19 07:58:32,449 INFO L125 PetriNetUnfolderBase]: For 5086/5086 co-relation queries the response was YES. [2023-11-19 07:58:32,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17920 conditions, 6720 events. 4884/6720 cut-off events. For 5086/5086 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 32511 event pairs, 1514 based on Foata normal form. 20/6686 useless extension candidates. Maximal degree in co-relation 17909. Up to 2826 conditions per place. [2023-11-19 07:58:32,482 INFO L140 encePairwiseOnDemand]: 251/260 looper letters, 0 selfloop transitions, 0 changer transitions 86/86 dead transitions. [2023-11-19 07:58:32,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 86 transitions, 437 flow [2023-11-19 07:58:32,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:58:32,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:58:32,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 784 transitions. [2023-11-19 07:58:32,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5025641025641026 [2023-11-19 07:58:32,487 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 784 transitions. [2023-11-19 07:58:32,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 784 transitions. [2023-11-19 07:58:32,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:58:32,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 784 transitions. [2023-11-19 07:58:32,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 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 07:58:32,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 260.0) internal successors, (1820), 7 states have internal predecessors, (1820), 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 07:58:32,497 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 260.0) internal successors, (1820), 7 states have internal predecessors, (1820), 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 07:58:32,498 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 187 flow. Second operand 6 states and 784 transitions. [2023-11-19 07:58:32,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 86 transitions, 437 flow [2023-11-19 07:58:32,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 86 transitions, 382 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-19 07:58:32,668 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2023-11-19 07:58:32,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2023-11-19 07:58:32,670 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-19 07:58:32,670 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2023-11-19 07:58:32,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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 07:58:32,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-19 07:58:32,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-19 07:58:32,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-19 07:58:32,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-19 07:58:32,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-19 07:58:32,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-19 07:58:32,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-19 07:58:32,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-19 07:58:32,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-19 07:58:32,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-19 07:58:32,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-19 07:58:32,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-19 07:58:32,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-19 07:58:32,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-19 07:58:32,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-19 07:58:32,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-19 07:58:32,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-19 07:58:32,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-19 07:58:32,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-19 07:58:32,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-19 07:58:32,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:58:32,680 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 07:58:32,686 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:58:32,687 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:58:32,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:58:32 BasicIcfg [2023-11-19 07:58:32,691 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:58:32,692 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:58:32,692 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:58:32,692 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:58:32,693 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:16" (3/4) ... [2023-11-19 07:58:32,695 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:58:32,698 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:58:32,698 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:58:32,699 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 07:58:32,699 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-19 07:58:32,705 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2023-11-19 07:58:32,706 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 07:58:32,707 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:58:32,707 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:58:32,827 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf553a04-741c-4ead-a04f-c438a925cbd4/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:58:32,827 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf553a04-741c-4ead-a04f-c438a925cbd4/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:58:32,828 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:58:32,829 INFO L158 Benchmark]: Toolchain (without parser) took 17668.77ms. Allocated memory was 190.8MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 141.1MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 407.7MB. Max. memory is 16.1GB. [2023-11-19 07:58:32,829 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:58:32,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 757.91ms. Allocated memory is still 190.8MB. Free memory was 140.6MB in the beginning and 116.5MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:58:32,830 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.91ms. Allocated memory is still 190.8MB. Free memory was 116.5MB in the beginning and 113.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:58:32,830 INFO L158 Benchmark]: Boogie Preprocessor took 47.26ms. Allocated memory is still 190.8MB. Free memory was 113.3MB in the beginning and 111.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:58:32,831 INFO L158 Benchmark]: RCFGBuilder took 924.22ms. Allocated memory is still 190.8MB. Free memory was 111.2MB in the beginning and 126.1MB in the end (delta: -14.9MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2023-11-19 07:58:32,831 INFO L158 Benchmark]: TraceAbstraction took 15711.74ms. Allocated memory was 190.8MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 125.1MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 612.3MB. Max. memory is 16.1GB. [2023-11-19 07:58:32,831 INFO L158 Benchmark]: Witness Printer took 136.22ms. Allocated memory is still 1.9GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:58:32,834 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 757.91ms. Allocated memory is still 190.8MB. Free memory was 140.6MB in the beginning and 116.5MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.91ms. Allocated memory is still 190.8MB. Free memory was 116.5MB in the beginning and 113.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.26ms. Allocated memory is still 190.8MB. Free memory was 113.3MB in the beginning and 111.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 924.22ms. Allocated memory is still 190.8MB. Free memory was 111.2MB in the beginning and 126.1MB in the end (delta: -14.9MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15711.74ms. Allocated memory was 190.8MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 125.1MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 612.3MB. Max. memory is 16.1GB. * Witness Printer took 136.22ms. Allocated memory is still 1.9GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.2s, 149 PlacesBefore, 48 PlacesAfterwards, 139 TransitionsBefore, 36 TransitionsAfterwards, 4668 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 117 TotalNumberOfCompositions, 14335 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5560, independent: 5230, independent conditional: 0, independent unconditional: 5230, dependent: 330, dependent conditional: 0, dependent unconditional: 330, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2480, independent: 2424, independent conditional: 0, independent unconditional: 2424, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5560, independent: 2806, independent conditional: 0, independent unconditional: 2806, dependent: 274, dependent conditional: 0, dependent unconditional: 274, unknown: 2480, unknown conditional: 0, unknown unconditional: 2480] , Statistics on independence cache: Total cache size (in pairs): 245, Positive cache size: 222, Positive conditional cache size: 0, Positive unconditional cache size: 222, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 837]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 837]: 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, 186 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: 15.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 264 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 249 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 367 IncrementalHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 6 mSDtfsCounter, 367 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=187occurred 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 07:58:32,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf553a04-741c-4ead-a04f-c438a925cbd4/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