./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:16:39,016 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:16:39,177 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:16:39,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:16:39,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:16:39,239 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:16:39,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:16:39,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:16:39,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:16:39,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:16:39,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:16:39,252 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:16:39,253 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:16:39,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:16:39,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:16:39,256 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:16:39,257 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:16:39,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:16:39,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:16:39,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:16:39,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:16:39,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:16:39,261 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:16:39,263 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:16:39,264 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:16:39,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:16:39,265 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:16:39,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:16:39,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:16:39,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:16:39,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:16:39,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:16:39,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:16:39,271 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:16:39,271 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:16:39,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:16:39,272 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:16:39,272 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:16:39,272 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:16:39,273 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:16:39,273 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:16:39,274 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_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc [2023-11-06 22:16:39,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:16:39,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:16:39,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:16:39,800 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:16:39,801 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:16:39,803 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2023-11-06 22:16:43,818 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:16:44,140 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:16:44,141 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2023-11-06 22:16:44,161 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/data/654200f4e/d5d6c39e66294b5897ff6d15db30d935/FLAG859c22651 [2023-11-06 22:16:44,188 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/data/654200f4e/d5d6c39e66294b5897ff6d15db30d935 [2023-11-06 22:16:44,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:16:44,198 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:16:44,203 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:16:44,203 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:16:44,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:16:44,211 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:16:44" (1/1) ... [2023-11-06 22:16:44,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bf1c4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:44, skipping insertion in model container [2023-11-06 22:16:44,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:16:44" (1/1) ... [2023-11-06 22:16:44,280 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:16:44,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:16:44,768 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:16:44,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:16:44,882 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:16:44,883 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:16:44,893 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:16:44,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:44 WrapperNode [2023-11-06 22:16:44,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:16:44,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:16:44,896 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:16:44,896 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:16:44,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:44" (1/1) ... [2023-11-06 22:16:44,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:44" (1/1) ... [2023-11-06 22:16:45,043 INFO L138 Inliner]: procedures = 25, calls = 308, calls flagged for inlining = 70, calls inlined = 98, statements flattened = 1689 [2023-11-06 22:16:45,044 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:16:45,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:16:45,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:16:45,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:16:45,060 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:44" (1/1) ... [2023-11-06 22:16:45,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:44" (1/1) ... [2023-11-06 22:16:45,104 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:44" (1/1) ... [2023-11-06 22:16:45,105 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:44" (1/1) ... [2023-11-06 22:16:45,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:44" (1/1) ... [2023-11-06 22:16:45,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:44" (1/1) ... [2023-11-06 22:16:45,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:44" (1/1) ... [2023-11-06 22:16:45,258 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:44" (1/1) ... [2023-11-06 22:16:45,281 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:16:45,283 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:16:45,283 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:16:45,283 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:16:45,284 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:44" (1/1) ... [2023-11-06 22:16:45,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:16:45,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:16:45,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:16:45,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:16:45,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:16:45,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:16:45,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:16:45,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:16:45,388 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:16:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:16:45,389 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:16:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:16:45,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:16:45,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:16:45,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:16:45,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:16:45,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:16:45,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:16:45,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:16:45,396 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:16:45,697 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:16:45,702 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:16:48,406 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:16:53,033 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:16:53,033 INFO L302 CfgBuilder]: Removed 12 assume(true) statements. [2023-11-06 22:16:53,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:16:53 BoogieIcfgContainer [2023-11-06 22:16:53,038 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:16:53,043 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:16:53,043 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:16:53,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:16:53,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:16:44" (1/3) ... [2023-11-06 22:16:53,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbe00a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:16:53, skipping insertion in model container [2023-11-06 22:16:53,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:44" (2/3) ... [2023-11-06 22:16:53,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbe00a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:16:53, skipping insertion in model container [2023-11-06 22:16:53,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:16:53" (3/3) ... [2023-11-06 22:16:53,058 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2023-11-06 22:16:53,072 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:16:53,087 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:16:53,087 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2023-11-06 22:16:53,087 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:16:54,280 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:16:54,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 548 places, 594 transitions, 1202 flow [2023-11-06 22:16:54,970 INFO L124 PetriNetUnfolderBase]: 53/592 cut-off events. [2023-11-06 22:16:54,970 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:16:54,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 601 conditions, 592 events. 53/592 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1081 event pairs, 0 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 480. Up to 7 conditions per place. [2023-11-06 22:16:54,983 INFO L82 GeneralOperation]: Start removeDead. Operand has 548 places, 594 transitions, 1202 flow [2023-11-06 22:16:55,013 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 526 places, 571 transitions, 1154 flow [2023-11-06 22:16:55,018 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:16:55,040 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 526 places, 571 transitions, 1154 flow [2023-11-06 22:16:55,047 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 526 places, 571 transitions, 1154 flow [2023-11-06 22:16:55,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 526 places, 571 transitions, 1154 flow [2023-11-06 22:16:55,387 INFO L124 PetriNetUnfolderBase]: 52/571 cut-off events. [2023-11-06 22:16:55,388 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:16:55,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 571 events. 52/571 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1077 event pairs, 0 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 480. Up to 7 conditions per place. [2023-11-06 22:16:55,411 INFO L119 LiptonReduction]: Number of co-enabled transitions 15552 [2023-11-06 22:19:59,523 INFO L134 LiptonReduction]: Checked pairs total: 19109 [2023-11-06 22:19:59,523 INFO L136 LiptonReduction]: Total number of compositions: 737 [2023-11-06 22:19:59,539 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:19:59,546 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=LoopsAndPotentialCycles, 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;@4fa11a60, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:19:59,547 INFO L358 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2023-11-06 22:19:59,550 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:19:59,550 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-06 22:19:59,550 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:19:59,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:19:59,551 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 22:19:59,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-11-06 22:19:59,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:19:59,558 INFO L85 PathProgramCache]: Analyzing trace with hash 210856, now seen corresponding path program 1 times [2023-11-06 22:19:59,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:19:59,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799265938] [2023-11-06 22:19:59,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:19:59,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:19:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:00,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:00,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:00,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799265938] [2023-11-06 22:20:00,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799265938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:00,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:00,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:20:00,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102406200] [2023-11-06 22:20:00,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:00,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:20:00,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:00,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:20:00,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:20:00,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 1331 [2023-11-06 22:20:00,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 108 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 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) [2023-11-06 22:20:00,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:00,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 1331 [2023-11-06 22:20:00,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:03,463 INFO L124 PetriNetUnfolderBase]: 1688/2688 cut-off events. [2023-11-06 22:20:03,463 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2023-11-06 22:20:03,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5446 conditions, 2688 events. 1688/2688 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 15444 event pairs, 1320 based on Foata normal form. 1/809 useless extension candidates. Maximal degree in co-relation 5136. Up to 2674 conditions per place. [2023-11-06 22:20:03,488 INFO L140 encePairwiseOnDemand]: 1278/1331 looper letters, 86 selfloop transitions, 17 changer transitions 1/104 dead transitions. [2023-11-06 22:20:03,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 104 transitions, 428 flow [2023-11-06 22:20:03,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:20:03,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:20:03,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1472 transitions. [2023-11-06 22:20:03,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3686451289757075 [2023-11-06 22:20:03,516 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1472 transitions. [2023-11-06 22:20:03,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1472 transitions. [2023-11-06 22:20:03,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:03,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1472 transitions. [2023-11-06 22:20:03,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 490.6666666666667) internal successors, (1472), 3 states have internal predecessors, (1472), 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) [2023-11-06 22:20:03,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1331.0) internal successors, (5324), 4 states have internal predecessors, (5324), 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) [2023-11-06 22:20:03,558 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1331.0) internal successors, (5324), 4 states have internal predecessors, (5324), 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) [2023-11-06 22:20:03,560 INFO L175 Difference]: Start difference. First operand has 99 places, 108 transitions, 228 flow. Second operand 3 states and 1472 transitions. [2023-11-06 22:20:03,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 104 transitions, 428 flow [2023-11-06 22:20:03,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 104 transitions, 420 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:20:03,572 INFO L231 Difference]: Finished difference. Result has 79 places, 103 transitions, 341 flow [2023-11-06 22:20:03,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1331, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=341, PETRI_PLACES=79, PETRI_TRANSITIONS=103} [2023-11-06 22:20:03,580 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -20 predicate places. [2023-11-06 22:20:03,580 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 103 transitions, 341 flow [2023-11-06 22:20:03,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 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) [2023-11-06 22:20:03,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:03,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:20:03,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:20:03,584 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-11-06 22:20:03,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:03,597 INFO L85 PathProgramCache]: Analyzing trace with hash 6544677, now seen corresponding path program 1 times [2023-11-06 22:20:03,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:03,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744453605] [2023-11-06 22:20:03,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:03,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:03,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:03,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:03,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744453605] [2023-11-06 22:20:03,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744453605] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:20:03,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433470626] [2023-11-06 22:20:03,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:03,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:20:03,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:20:03,812 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:20:03,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:20:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:04,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:20:04,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:20:04,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:04,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:20:04,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:04,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433470626] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:20:04,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:20:04,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-11-06 22:20:04,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80520382] [2023-11-06 22:20:04,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:20:04,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:20:04,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:04,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:20:04,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:20:05,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 1331 [2023-11-06 22:20:05,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 103 transitions, 341 flow. Second operand has 7 states, 7 states have (on average 445.14285714285717) internal successors, (3116), 7 states have internal predecessors, (3116), 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) [2023-11-06 22:20:05,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:05,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 1331 [2023-11-06 22:20:05,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:08,716 INFO L124 PetriNetUnfolderBase]: 1736/2759 cut-off events. [2023-11-06 22:20:08,717 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-11-06 22:20:08,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5703 conditions, 2759 events. 1736/2759 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 15641 event pairs, 1320 based on Foata normal form. 0/866 useless extension candidates. Maximal degree in co-relation 5298. Up to 2668 conditions per place. [2023-11-06 22:20:08,737 INFO L140 encePairwiseOnDemand]: 1298/1331 looper letters, 78 selfloop transitions, 97 changer transitions 0/175 dead transitions. [2023-11-06 22:20:08,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 175 transitions, 1021 flow [2023-11-06 22:20:08,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:20:08,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:20:08,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3307 transitions. [2023-11-06 22:20:08,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35494257808307395 [2023-11-06 22:20:08,755 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3307 transitions. [2023-11-06 22:20:08,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3307 transitions. [2023-11-06 22:20:08,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:08,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3307 transitions. [2023-11-06 22:20:08,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 472.42857142857144) internal successors, (3307), 7 states have internal predecessors, (3307), 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) [2023-11-06 22:20:08,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1331.0) internal successors, (10648), 8 states have internal predecessors, (10648), 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) [2023-11-06 22:20:08,803 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1331.0) internal successors, (10648), 8 states have internal predecessors, (10648), 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) [2023-11-06 22:20:08,804 INFO L175 Difference]: Start difference. First operand has 79 places, 103 transitions, 341 flow. Second operand 7 states and 3307 transitions. [2023-11-06 22:20:08,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 175 transitions, 1021 flow [2023-11-06 22:20:08,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 175 transitions, 945 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:20:08,814 INFO L231 Difference]: Finished difference. Result has 85 places, 175 transitions, 951 flow [2023-11-06 22:20:08,814 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1331, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=951, PETRI_PLACES=85, PETRI_TRANSITIONS=175} [2023-11-06 22:20:08,816 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -14 predicate places. [2023-11-06 22:20:08,816 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 175 transitions, 951 flow [2023-11-06 22:20:08,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 445.14285714285717) internal successors, (3116), 7 states have internal predecessors, (3116), 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) [2023-11-06 22:20:08,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:08,820 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1] [2023-11-06 22:20:08,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:20:09,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:20:09,030 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-11-06 22:20:09,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:09,031 INFO L85 PathProgramCache]: Analyzing trace with hash 202891336, now seen corresponding path program 1 times [2023-11-06 22:20:09,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:09,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919650030] [2023-11-06 22:20:09,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:09,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:09,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:20:09,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:09,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919650030] [2023-11-06 22:20:09,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919650030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:09,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:09,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:20:09,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600699183] [2023-11-06 22:20:09,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:09,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:20:09,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:09,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:20:09,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:20:09,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 1331 [2023-11-06 22:20:09,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 175 transitions, 951 flow. Second operand has 3 states, 3 states have (on average 445.3333333333333) internal successors, (1336), 3 states have internal predecessors, (1336), 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) [2023-11-06 22:20:09,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:09,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 1331 [2023-11-06 22:20:09,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:12,077 INFO L124 PetriNetUnfolderBase]: 1712/2727 cut-off events. [2023-11-06 22:20:12,077 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-06 22:20:12,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5718 conditions, 2727 events. 1712/2727 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 15460 event pairs, 1320 based on Foata normal form. 0/863 useless extension candidates. Maximal degree in co-relation 5479. Up to 2644 conditions per place. [2023-11-06 22:20:12,099 INFO L140 encePairwiseOnDemand]: 1321/1331 looper letters, 137 selfloop transitions, 6 changer transitions 0/143 dead transitions. [2023-11-06 22:20:12,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 143 transitions, 1021 flow [2023-11-06 22:20:12,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:20:12,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:20:12,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1419 transitions. [2023-11-06 22:20:12,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35537190082644626 [2023-11-06 22:20:12,107 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1419 transitions. [2023-11-06 22:20:12,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1419 transitions. [2023-11-06 22:20:12,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:12,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1419 transitions. [2023-11-06 22:20:12,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 473.0) internal successors, (1419), 3 states have internal predecessors, (1419), 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) [2023-11-06 22:20:12,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1331.0) internal successors, (5324), 4 states have internal predecessors, (5324), 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) [2023-11-06 22:20:12,127 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1331.0) internal successors, (5324), 4 states have internal predecessors, (5324), 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) [2023-11-06 22:20:12,127 INFO L175 Difference]: Start difference. First operand has 85 places, 175 transitions, 951 flow. Second operand 3 states and 1419 transitions. [2023-11-06 22:20:12,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 143 transitions, 1021 flow [2023-11-06 22:20:12,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 143 transitions, 929 flow, removed 27 selfloop flow, removed 1 redundant places. [2023-11-06 22:20:12,140 INFO L231 Difference]: Finished difference. Result has 77 places, 143 transitions, 655 flow [2023-11-06 22:20:12,141 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1331, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=655, PETRI_PLACES=77, PETRI_TRANSITIONS=143} [2023-11-06 22:20:12,143 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -22 predicate places. [2023-11-06 22:20:12,143 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 143 transitions, 655 flow [2023-11-06 22:20:12,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 445.3333333333333) internal successors, (1336), 3 states have internal predecessors, (1336), 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) [2023-11-06 22:20:12,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:12,145 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-11-06 22:20:12,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:20:12,146 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-11-06 22:20:12,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:12,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1705304352, now seen corresponding path program 2 times [2023-11-06 22:20:12,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:12,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58317965] [2023-11-06 22:20:12,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:12,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:12,341 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:12,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:12,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58317965] [2023-11-06 22:20:12,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58317965] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:20:12,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899691398] [2023-11-06 22:20:12,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:20:12,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:20:12,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:20:12,344 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:20:12,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:20:13,395 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:20:13,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:20:13,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:20:13,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:20:13,414 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:20:13,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:20:13,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899691398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:13,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:20:13,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-11-06 22:20:13,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473627368] [2023-11-06 22:20:13,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:13,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:20:13,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:13,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:20:13,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:20:13,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 1331 [2023-11-06 22:20:13,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 143 transitions, 655 flow. Second operand has 3 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 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) [2023-11-06 22:20:13,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:13,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 1331 [2023-11-06 22:20:13,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:16,646 INFO L124 PetriNetUnfolderBase]: 1712/2721 cut-off events. [2023-11-06 22:20:16,646 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-11-06 22:20:16,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5633 conditions, 2721 events. 1712/2721 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 15506 event pairs, 1320 based on Foata normal form. 6/872 useless extension candidates. Maximal degree in co-relation 5458. Up to 2666 conditions per place. [2023-11-06 22:20:16,670 INFO L140 encePairwiseOnDemand]: 1323/1331 looper letters, 131 selfloop transitions, 6 changer transitions 0/137 dead transitions. [2023-11-06 22:20:16,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 137 transitions, 869 flow [2023-11-06 22:20:16,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:20:16,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:20:16,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1459 transitions. [2023-11-06 22:20:16,679 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.365389431505134 [2023-11-06 22:20:16,680 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1459 transitions. [2023-11-06 22:20:16,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1459 transitions. [2023-11-06 22:20:16,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:16,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1459 transitions. [2023-11-06 22:20:16,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 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) [2023-11-06 22:20:16,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1331.0) internal successors, (5324), 4 states have internal predecessors, (5324), 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) [2023-11-06 22:20:16,700 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1331.0) internal successors, (5324), 4 states have internal predecessors, (5324), 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) [2023-11-06 22:20:16,700 INFO L175 Difference]: Start difference. First operand has 77 places, 143 transitions, 655 flow. Second operand 3 states and 1459 transitions. [2023-11-06 22:20:16,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 137 transitions, 869 flow [2023-11-06 22:20:16,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 137 transitions, 857 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:20:16,707 INFO L231 Difference]: Finished difference. Result has 71 places, 137 transitions, 595 flow [2023-11-06 22:20:16,708 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1331, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=595, PETRI_PLACES=71, PETRI_TRANSITIONS=137} [2023-11-06 22:20:16,709 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -28 predicate places. [2023-11-06 22:20:16,710 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 137 transitions, 595 flow [2023-11-06 22:20:16,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 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) [2023-11-06 22:20:16,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:16,711 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:16,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:20:16,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc34952-3a9d-4ff0-b2d8-a4378d50df9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:20:16,921 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-11-06 22:20:16,922 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:16,922 INFO L85 PathProgramCache]: Analyzing trace with hash -526393804, now seen corresponding path program 1 times [2023-11-06 22:20:16,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:16,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032184496] [2023-11-06 22:20:16,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:16,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:17,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:17,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:17,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032184496] [2023-11-06 22:20:17,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032184496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:17,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:17,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:20:17,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341620345] [2023-11-06 22:20:17,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:17,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:20:17,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:17,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:20:17,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:20:17,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 436 out of 1331 [2023-11-06 22:20:17,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 137 transitions, 595 flow. Second operand has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 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) [2023-11-06 22:20:17,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:17,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 436 of 1331 [2023-11-06 22:20:17,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:19,622 INFO L124 PetriNetUnfolderBase]: 1710/2719 cut-off events. [2023-11-06 22:20:19,622 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-06 22:20:19,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5627 conditions, 2719 events. 1710/2719 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 15270 event pairs, 1320 based on Foata normal form. 2/865 useless extension candidates. Maximal degree in co-relation 5452. Up to 2715 conditions per place. [2023-11-06 22:20:19,643 INFO L140 encePairwiseOnDemand]: 1326/1331 looper letters, 128 selfloop transitions, 7 changer transitions 0/135 dead transitions. [2023-11-06 22:20:19,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 135 transitions, 857 flow [2023-11-06 22:20:19,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:20:19,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:20:19,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1385 transitions. [2023-11-06 22:20:19,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34685699974956175 [2023-11-06 22:20:19,651 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1385 transitions. [2023-11-06 22:20:19,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1385 transitions. [2023-11-06 22:20:19,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:19,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1385 transitions. [2023-11-06 22:20:19,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 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) [2023-11-06 22:20:19,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1331.0) internal successors, (5324), 4 states have internal predecessors, (5324), 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) [2023-11-06 22:20:19,700 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1331.0) internal successors, (5324), 4 states have internal predecessors, (5324), 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) [2023-11-06 22:20:19,700 INFO L175 Difference]: Start difference. First operand has 71 places, 137 transitions, 595 flow. Second operand 3 states and 1385 transitions. [2023-11-06 22:20:19,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 135 transitions, 857 flow [2023-11-06 22:20:19,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 135 transitions, 845 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:20:19,707 INFO L231 Difference]: Finished difference. Result has 71 places, 135 transitions, 589 flow [2023-11-06 22:20:19,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1331, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=589, PETRI_PLACES=71, PETRI_TRANSITIONS=135} [2023-11-06 22:20:19,708 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -28 predicate places. [2023-11-06 22:20:19,708 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 135 transitions, 589 flow [2023-11-06 22:20:19,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 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) [2023-11-06 22:20:19,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:19,714 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:19,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:20:19,714 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2023-11-06 22:20:19,715 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:19,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1006212017, now seen corresponding path program 1 times [2023-11-06 22:20:19,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:19,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45894706] [2023-11-06 22:20:19,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:19,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:20:19,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:19,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45894706] [2023-11-06 22:20:19,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45894706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:19,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:19,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:20:19,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888612044] [2023-11-06 22:20:19,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:19,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:20:19,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:19,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:20:19,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:20:20,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 436 out of 1331 [2023-11-06 22:20:20,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 135 transitions, 589 flow. Second operand has 3 states, 3 states have (on average 440.3333333333333) internal successors, (1321), 3 states have internal predecessors, (1321), 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) [2023-11-06 22:20:20,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:20,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 436 of 1331 [2023-11-06 22:20:20,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand