./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix053.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/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_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix053.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 998817f829569afa1d1e3eda89c2594d280c8ae81957c207a6b68804966cf3a6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:40,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:40,093 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:42:40,098 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:40,099 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:40,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:40,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:40,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:40,167 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:40,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:40,173 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:40,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:40,174 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:40,177 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:40,177 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:42:40,178 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:42:40,178 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:42:40,179 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:40,179 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:42:40,180 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:42:40,180 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:42:40,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:40,181 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:42:40,182 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:42:40,182 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:42:40,183 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:40,184 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:40,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:40,185 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:40,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:40,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:40,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:40,188 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:42:40,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:42:40,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:40,189 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:40,189 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:40,189 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:40,190 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_5384d825-92df-486b-8727-a8f4632e4f29/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 998817f829569afa1d1e3eda89c2594d280c8ae81957c207a6b68804966cf3a6 [2023-11-19 07:42:40,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:40,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:40,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:40,613 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:40,614 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:40,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix053.opt.i [2023-11-19 07:42:44,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:42:44,485 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:42:44,486 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/sv-benchmarks/c/pthread-wmm/mix053.opt.i [2023-11-19 07:42:44,509 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/data/3002f4d94/46e657b4cce4489484ebcd379c445c29/FLAG73b2a693a [2023-11-19 07:42:44,524 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/data/3002f4d94/46e657b4cce4489484ebcd379c445c29 [2023-11-19 07:42:44,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:42:44,528 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:42:44,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:44,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:42:44,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:42:44,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:44" (1/1) ... [2023-11-19 07:42:44,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68bc941b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:44, skipping insertion in model container [2023-11-19 07:42:44,542 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:44" (1/1) ... [2023-11-19 07:42:44,606 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:42:45,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:45,026 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:42:45,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:45,142 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:42:45,142 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:42:45,151 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:42:45,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:45 WrapperNode [2023-11-19 07:42:45,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:45,153 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:45,153 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:42:45,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:42:45,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:45" (1/1) ... [2023-11-19 07:42:45,202 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:45" (1/1) ... [2023-11-19 07:42:45,256 INFO L138 Inliner]: procedures = 177, calls = 68, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 148 [2023-11-19 07:42:45,261 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:45,262 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:42:45,262 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:42:45,263 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:42:45,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:45" (1/1) ... [2023-11-19 07:42:45,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:45" (1/1) ... [2023-11-19 07:42:45,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:45" (1/1) ... [2023-11-19 07:42:45,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:45" (1/1) ... [2023-11-19 07:42:45,308 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:45" (1/1) ... [2023-11-19 07:42:45,316 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:45" (1/1) ... [2023-11-19 07:42:45,319 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:45" (1/1) ... [2023-11-19 07:42:45,321 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:45" (1/1) ... [2023-11-19 07:42:45,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:42:45,327 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:42:45,327 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:42:45,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:42:45,328 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:45" (1/1) ... [2023-11-19 07:42:45,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:45,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:45,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:45,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:42:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:42:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:42:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:42:45,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:42:45,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:42:45,420 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:42:45,420 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:42:45,421 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:42:45,421 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:42:45,421 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:42:45,421 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:42:45,422 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 07:42:45,422 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 07:42:45,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:42:45,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:42:45,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:42:45,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:42:45,425 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 07:42:45,588 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:42:45,590 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:42:45,955 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:42:46,164 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:42:46,165 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:42:46,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:46 BoogieIcfgContainer [2023-11-19 07:42:46,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:42:46,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:42:46,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:42:46,176 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:42:46,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:42:44" (1/3) ... [2023-11-19 07:42:46,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10dbd2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:46, skipping insertion in model container [2023-11-19 07:42:46,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:45" (2/3) ... [2023-11-19 07:42:46,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10dbd2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:46, skipping insertion in model container [2023-11-19 07:42:46,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:46" (3/3) ... [2023-11-19 07:42:46,179 INFO L112 eAbstractionObserver]: Analyzing ICFG mix053.opt.i [2023-11-19 07:42:46,200 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:42:46,200 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-19 07:42:46,200 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:42:46,269 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:42:46,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 148 transitions, 312 flow [2023-11-19 07:42:46,387 INFO L124 PetriNetUnfolderBase]: 3/144 cut-off events. [2023-11-19 07:42:46,387 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:42:46,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 144 events. 3/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 119 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-11-19 07:42:46,396 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 148 transitions, 312 flow [2023-11-19 07:42:46,403 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 154 places, 144 transitions, 300 flow [2023-11-19 07:42:46,407 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:42:46,419 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 144 transitions, 300 flow [2023-11-19 07:42:46,422 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 144 transitions, 300 flow [2023-11-19 07:42:46,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 144 transitions, 300 flow [2023-11-19 07:42:46,506 INFO L124 PetriNetUnfolderBase]: 3/144 cut-off events. [2023-11-19 07:42:46,506 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:42:46,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 144 events. 3/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 119 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-11-19 07:42:46,516 INFO L119 LiptonReduction]: Number of co-enabled transitions 3880 [2023-11-19 07:42:52,851 INFO L134 LiptonReduction]: Checked pairs total: 7782 [2023-11-19 07:42:52,852 INFO L136 LiptonReduction]: Total number of compositions: 146 [2023-11-19 07:42:52,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:42:52,876 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@68a5ffb3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:42:52,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-19 07:42:52,883 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:42:52,883 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-19 07:42:52,883 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:42:52,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:42:52,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:42:52,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:42:52,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:52,892 INFO L85 PathProgramCache]: Analyzing trace with hash 625, now seen corresponding path program 1 times [2023-11-19 07:42:52,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:52,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173454729] [2023-11-19 07:42:52,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:52,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:53,038 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 07:42:53,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:53,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173454729] [2023-11-19 07:42:53,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173454729] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:53,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:53,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:42:53,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749261711] [2023-11-19 07:42:53,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:53,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:42:53,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:53,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:42:53,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:42:53,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 294 [2023-11-19 07:42:53,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 86 flow. Second operand has 2 states, 2 states have (on average 135.5) internal successors, (271), 2 states have internal predecessors, (271), 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 07:42:53,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:42:53,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 294 [2023-11-19 07:42:53,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:42:54,743 INFO L124 PetriNetUnfolderBase]: 6855/9392 cut-off events. [2023-11-19 07:42:54,744 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2023-11-19 07:42:54,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18832 conditions, 9392 events. 6855/9392 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 44830 event pairs, 6855 based on Foata normal form. 0/8240 useless extension candidates. Maximal degree in co-relation 18820. Up to 9265 conditions per place. [2023-11-19 07:42:54,844 INFO L140 encePairwiseOnDemand]: 285/294 looper letters, 27 selfloop transitions, 0 changer transitions 0/28 dead transitions. [2023-11-19 07:42:54,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 28 transitions, 122 flow [2023-11-19 07:42:54,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:42:54,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:42:54,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 306 transitions. [2023-11-19 07:42:54,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5204081632653061 [2023-11-19 07:42:54,869 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 306 transitions. [2023-11-19 07:42:54,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 306 transitions. [2023-11-19 07:42:54,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:42:54,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 306 transitions. [2023-11-19 07:42:54,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 153.0) internal successors, (306), 2 states have internal predecessors, (306), 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 07:42:54,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 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 07:42:54,890 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 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 07:42:54,892 INFO L175 Difference]: Start difference. First operand has 49 places, 37 transitions, 86 flow. Second operand 2 states and 306 transitions. [2023-11-19 07:42:54,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 28 transitions, 122 flow [2023-11-19 07:42:54,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 28 transitions, 118 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:42:54,903 INFO L231 Difference]: Finished difference. Result has 38 places, 28 transitions, 64 flow [2023-11-19 07:42:54,906 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=64, PETRI_PLACES=38, PETRI_TRANSITIONS=28} [2023-11-19 07:42:54,911 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -11 predicate places. [2023-11-19 07:42:54,911 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 64 flow [2023-11-19 07:42:54,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 135.5) internal successors, (271), 2 states have internal predecessors, (271), 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 07:42:54,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:42:54,912 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:54,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:42:54,913 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:42:54,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:54,914 INFO L85 PathProgramCache]: Analyzing trace with hash 890158727, now seen corresponding path program 1 times [2023-11-19 07:42:54,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:54,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850482540] [2023-11-19 07:42:54,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:54,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:55,472 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 07:42:55,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:55,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850482540] [2023-11-19 07:42:55,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850482540] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:55,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:55,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:42:55,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670811277] [2023-11-19 07:42:55,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:55,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:55,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:55,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:55,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:55,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 294 [2023-11-19 07:42:55,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 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 07:42:55,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:42:55,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 294 [2023-11-19 07:42:55,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:42:56,721 INFO L124 PetriNetUnfolderBase]: 5463/7872 cut-off events. [2023-11-19 07:42:56,721 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:42:56,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15469 conditions, 7872 events. 5463/7872 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 40272 event pairs, 1287 based on Foata normal form. 0/7360 useless extension candidates. Maximal degree in co-relation 15466. Up to 5521 conditions per place. [2023-11-19 07:42:56,777 INFO L140 encePairwiseOnDemand]: 291/294 looper letters, 37 selfloop transitions, 2 changer transitions 2/42 dead transitions. [2023-11-19 07:42:56,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 42 transitions, 174 flow [2023-11-19 07:42:56,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:56,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:42:56,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2023-11-19 07:42:56,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5034013605442177 [2023-11-19 07:42:56,783 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 444 transitions. [2023-11-19 07:42:56,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 444 transitions. [2023-11-19 07:42:56,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:42:56,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 444 transitions. [2023-11-19 07:42:56,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 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 07:42:56,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 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 07:42:56,794 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 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 07:42:56,794 INFO L175 Difference]: Start difference. First operand has 38 places, 28 transitions, 64 flow. Second operand 3 states and 444 transitions. [2023-11-19 07:42:56,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 42 transitions, 174 flow [2023-11-19 07:42:56,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 174 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:42:56,796 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 64 flow [2023-11-19 07:42:56,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2023-11-19 07:42:56,798 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -10 predicate places. [2023-11-19 07:42:56,798 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 64 flow [2023-11-19 07:42:56,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 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 07:42:56,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:42:56,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:56,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:42:56,800 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:42:56,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:56,801 INFO L85 PathProgramCache]: Analyzing trace with hash 744105285, now seen corresponding path program 1 times [2023-11-19 07:42:56,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:56,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094995360] [2023-11-19 07:42:56,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:56,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:57,090 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 07:42:57,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:57,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094995360] [2023-11-19 07:42:57,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094995360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:57,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:57,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:42:57,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934296960] [2023-11-19 07:42:57,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:57,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:57,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:57,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:57,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:57,110 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 294 [2023-11-19 07:42:57,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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 07:42:57,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:42:57,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 294 [2023-11-19 07:42:57,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:42:59,026 INFO L124 PetriNetUnfolderBase]: 9769/13402 cut-off events. [2023-11-19 07:42:59,026 INFO L125 PetriNetUnfolderBase]: For 586/586 co-relation queries the response was YES. [2023-11-19 07:42:59,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27695 conditions, 13402 events. 9769/13402 cut-off events. For 586/586 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 68935 event pairs, 3513 based on Foata normal form. 0/13106 useless extension candidates. Maximal degree in co-relation 27691. Up to 7453 conditions per place. [2023-11-19 07:42:59,109 INFO L140 encePairwiseOnDemand]: 285/294 looper letters, 39 selfloop transitions, 8 changer transitions 0/47 dead transitions. [2023-11-19 07:42:59,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 47 transitions, 206 flow [2023-11-19 07:42:59,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:59,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:42:59,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 426 transitions. [2023-11-19 07:42:59,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48299319727891155 [2023-11-19 07:42:59,112 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 426 transitions. [2023-11-19 07:42:59,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 426 transitions. [2023-11-19 07:42:59,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:42:59,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 426 transitions. [2023-11-19 07:42:59,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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 07:42:59,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 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 07:42:59,118 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 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 07:42:59,118 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 64 flow. Second operand 3 states and 426 transitions. [2023-11-19 07:42:59,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 47 transitions, 206 flow [2023-11-19 07:42:59,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 47 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:42:59,136 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 122 flow [2023-11-19 07:42:59,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2023-11-19 07:42:59,138 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -9 predicate places. [2023-11-19 07:42:59,138 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 122 flow [2023-11-19 07:42:59,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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 07:42:59,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:42:59,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:59,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:42:59,144 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:42:59,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:59,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1592425432, now seen corresponding path program 1 times [2023-11-19 07:42:59,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:59,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703561861] [2023-11-19 07:42:59,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:59,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:59,388 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 07:42:59,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:59,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703561861] [2023-11-19 07:42:59,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703561861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:59,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:59,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:42:59,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377606232] [2023-11-19 07:42:59,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:59,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:59,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:59,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:59,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:59,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 294 [2023-11-19 07:42:59,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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 07:42:59,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:42:59,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 294 [2023-11-19 07:42:59,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:01,015 INFO L124 PetriNetUnfolderBase]: 9071/12564 cut-off events. [2023-11-19 07:43:01,016 INFO L125 PetriNetUnfolderBase]: For 5996/6012 co-relation queries the response was YES. [2023-11-19 07:43:01,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32935 conditions, 12564 events. 9071/12564 cut-off events. For 5996/6012 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 67259 event pairs, 1873 based on Foata normal form. 36/12387 useless extension candidates. Maximal degree in co-relation 32930. Up to 11335 conditions per place. [2023-11-19 07:43:01,110 INFO L140 encePairwiseOnDemand]: 290/294 looper letters, 48 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2023-11-19 07:43:01,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 55 transitions, 306 flow [2023-11-19 07:43:01,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:01,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:43:01,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 439 transitions. [2023-11-19 07:43:01,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4977324263038549 [2023-11-19 07:43:01,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 439 transitions. [2023-11-19 07:43:01,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 439 transitions. [2023-11-19 07:43:01,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:01,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 439 transitions. [2023-11-19 07:43:01,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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 07:43:01,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 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 07:43:01,121 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 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 07:43:01,121 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 122 flow. Second operand 3 states and 439 transitions. [2023-11-19 07:43:01,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 55 transitions, 306 flow [2023-11-19 07:43:01,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 55 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:43:01,151 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 147 flow [2023-11-19 07:43:01,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2023-11-19 07:43:01,154 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -8 predicate places. [2023-11-19 07:43:01,154 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 147 flow [2023-11-19 07:43:01,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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 07:43:01,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:01,155 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:01,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:43:01,156 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:43:01,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:01,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1592424967, now seen corresponding path program 1 times [2023-11-19 07:43:01,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:01,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679572444] [2023-11-19 07:43:01,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:01,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:01,406 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 07:43:01,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:01,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679572444] [2023-11-19 07:43:01,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679572444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:01,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:01,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:01,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114503266] [2023-11-19 07:43:01,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:01,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:01,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:01,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:01,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:01,435 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 294 [2023-11-19 07:43:01,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 07:43:01,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:01,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 294 [2023-11-19 07:43:01,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:02,943 INFO L124 PetriNetUnfolderBase]: 9396/12893 cut-off events. [2023-11-19 07:43:02,944 INFO L125 PetriNetUnfolderBase]: For 4858/4858 co-relation queries the response was YES. [2023-11-19 07:43:02,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33697 conditions, 12893 events. 9396/12893 cut-off events. For 4858/4858 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 66697 event pairs, 1493 based on Foata normal form. 30/12923 useless extension candidates. Maximal degree in co-relation 33691. Up to 6540 conditions per place. [2023-11-19 07:43:03,048 INFO L140 encePairwiseOnDemand]: 285/294 looper letters, 63 selfloop transitions, 14 changer transitions 0/77 dead transitions. [2023-11-19 07:43:03,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 77 transitions, 421 flow [2023-11-19 07:43:03,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:03,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:43:03,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 572 transitions. [2023-11-19 07:43:03,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48639455782312924 [2023-11-19 07:43:03,052 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 572 transitions. [2023-11-19 07:43:03,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 572 transitions. [2023-11-19 07:43:03,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:03,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 572 transitions. [2023-11-19 07:43:03,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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 07:43:03,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 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 07:43:03,062 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 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 07:43:03,062 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 147 flow. Second operand 4 states and 572 transitions. [2023-11-19 07:43:03,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 77 transitions, 421 flow [2023-11-19 07:43:03,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 77 transitions, 414 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:43:03,068 INFO L231 Difference]: Finished difference. Result has 46 places, 45 transitions, 246 flow [2023-11-19 07:43:03,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=246, PETRI_PLACES=46, PETRI_TRANSITIONS=45} [2023-11-19 07:43:03,071 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2023-11-19 07:43:03,071 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 45 transitions, 246 flow [2023-11-19 07:43:03,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 07:43:03,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:03,072 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:03,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:43:03,073 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:43:03,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:03,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1592428017, now seen corresponding path program 1 times [2023-11-19 07:43:03,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:03,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106307734] [2023-11-19 07:43:03,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:03,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:03,940 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 07:43:03,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:03,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106307734] [2023-11-19 07:43:03,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106307734] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:03,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:03,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:43:03,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815186193] [2023-11-19 07:43:03,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:03,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:43:03,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:03,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:43:03,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:43:04,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 294 [2023-11-19 07:43:04,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 45 transitions, 246 flow. Second operand has 7 states, 7 states have (on average 116.71428571428571) internal successors, (817), 7 states have internal predecessors, (817), 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 07:43:04,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:04,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 294 [2023-11-19 07:43:04,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:05,635 INFO L124 PetriNetUnfolderBase]: 7235/10104 cut-off events. [2023-11-19 07:43:05,636 INFO L125 PetriNetUnfolderBase]: For 16755/16869 co-relation queries the response was YES. [2023-11-19 07:43:05,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31616 conditions, 10104 events. 7235/10104 cut-off events. For 16755/16869 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 51547 event pairs, 1330 based on Foata normal form. 552/10512 useless extension candidates. Maximal degree in co-relation 31608. Up to 7134 conditions per place. [2023-11-19 07:43:05,701 INFO L140 encePairwiseOnDemand]: 288/294 looper letters, 68 selfloop transitions, 4 changer transitions 30/105 dead transitions. [2023-11-19 07:43:05,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 105 transitions, 824 flow [2023-11-19 07:43:05,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:43:05,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:43:05,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 860 transitions. [2023-11-19 07:43:05,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41788143828960156 [2023-11-19 07:43:05,706 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 860 transitions. [2023-11-19 07:43:05,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 860 transitions. [2023-11-19 07:43:05,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:05,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 860 transitions. [2023-11-19 07:43:05,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 122.85714285714286) internal successors, (860), 7 states have internal predecessors, (860), 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 07:43:05,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 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 07:43:05,716 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 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 07:43:05,717 INFO L175 Difference]: Start difference. First operand has 46 places, 45 transitions, 246 flow. Second operand 7 states and 860 transitions. [2023-11-19 07:43:05,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 105 transitions, 824 flow [2023-11-19 07:43:05,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 105 transitions, 824 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:43:05,750 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 228 flow [2023-11-19 07:43:05,750 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=228, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2023-11-19 07:43:05,751 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-11-19 07:43:05,751 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 228 flow [2023-11-19 07:43:05,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 116.71428571428571) internal successors, (817), 7 states have internal predecessors, (817), 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 07:43:05,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:05,752 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:05,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:43:05,753 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:43:05,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:05,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2142658392, now seen corresponding path program 1 times [2023-11-19 07:43:05,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:05,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314982414] [2023-11-19 07:43:05,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:05,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:05,926 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 07:43:05,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:05,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314982414] [2023-11-19 07:43:05,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314982414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:05,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:05,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:05,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755324282] [2023-11-19 07:43:05,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:05,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:05,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:05,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:05,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:05,949 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 294 [2023-11-19 07:43:05,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 228 flow. Second operand has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 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 07:43:05,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:05,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 294 [2023-11-19 07:43:05,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:06,978 INFO L124 PetriNetUnfolderBase]: 5117/7435 cut-off events. [2023-11-19 07:43:06,978 INFO L125 PetriNetUnfolderBase]: For 13286/13289 co-relation queries the response was YES. [2023-11-19 07:43:06,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22667 conditions, 7435 events. 5117/7435 cut-off events. For 13286/13289 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 39808 event pairs, 816 based on Foata normal form. 531/7862 useless extension candidates. Maximal degree in co-relation 22658. Up to 5004 conditions per place. [2023-11-19 07:43:07,090 INFO L140 encePairwiseOnDemand]: 287/294 looper letters, 98 selfloop transitions, 9 changer transitions 9/119 dead transitions. [2023-11-19 07:43:07,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 119 transitions, 912 flow [2023-11-19 07:43:07,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:43:07,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:43:07,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 693 transitions. [2023-11-19 07:43:07,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2023-11-19 07:43:07,094 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 693 transitions. [2023-11-19 07:43:07,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 693 transitions. [2023-11-19 07:43:07,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:07,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 693 transitions. [2023-11-19 07:43:07,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 138.6) internal successors, (693), 5 states have internal predecessors, (693), 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 07:43:07,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 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 07:43:07,101 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 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 07:43:07,101 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 228 flow. Second operand 5 states and 693 transitions. [2023-11-19 07:43:07,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 119 transitions, 912 flow [2023-11-19 07:43:07,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 119 transitions, 864 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 07:43:07,119 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 279 flow [2023-11-19 07:43:07,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=279, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2023-11-19 07:43:07,120 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-11-19 07:43:07,120 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 279 flow [2023-11-19 07:43:07,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 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 07:43:07,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:07,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:07,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:43:07,121 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:43:07,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:07,122 INFO L85 PathProgramCache]: Analyzing trace with hash -73781685, now seen corresponding path program 1 times [2023-11-19 07:43:07,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:07,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999261980] [2023-11-19 07:43:07,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:07,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:07,316 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 07:43:07,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:07,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999261980] [2023-11-19 07:43:07,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999261980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:07,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:07,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:07,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217578943] [2023-11-19 07:43:07,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:07,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:07,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:07,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:07,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:07,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 294 [2023-11-19 07:43:07,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 279 flow. Second operand has 4 states, 4 states have (on average 129.75) internal successors, (519), 4 states have internal predecessors, (519), 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 07:43:07,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:07,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 294 [2023-11-19 07:43:07,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:08,406 INFO L124 PetriNetUnfolderBase]: 6638/9772 cut-off events. [2023-11-19 07:43:08,406 INFO L125 PetriNetUnfolderBase]: For 16514/16514 co-relation queries the response was YES. [2023-11-19 07:43:08,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36767 conditions, 9772 events. 6638/9772 cut-off events. For 16514/16514 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 55551 event pairs, 1600 based on Foata normal form. 106/9878 useless extension candidates. Maximal degree in co-relation 36755. Up to 4100 conditions per place. [2023-11-19 07:43:08,461 INFO L140 encePairwiseOnDemand]: 286/294 looper letters, 69 selfloop transitions, 15 changer transitions 16/100 dead transitions. [2023-11-19 07:43:08,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 100 transitions, 738 flow [2023-11-19 07:43:08,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:43:08,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 566 transitions. [2023-11-19 07:43:08,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4812925170068027 [2023-11-19 07:43:08,465 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 566 transitions. [2023-11-19 07:43:08,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 566 transitions. [2023-11-19 07:43:08,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:08,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 566 transitions. [2023-11-19 07:43:08,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 141.5) internal successors, (566), 4 states have internal predecessors, (566), 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 07:43:08,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 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 07:43:08,471 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 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 07:43:08,471 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 279 flow. Second operand 4 states and 566 transitions. [2023-11-19 07:43:08,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 100 transitions, 738 flow [2023-11-19 07:43:08,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 100 transitions, 725 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:43:08,508 INFO L231 Difference]: Finished difference. Result has 56 places, 47 transitions, 346 flow [2023-11-19 07:43:08,509 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=346, PETRI_PLACES=56, PETRI_TRANSITIONS=47} [2023-11-19 07:43:08,509 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 7 predicate places. [2023-11-19 07:43:08,509 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 47 transitions, 346 flow [2023-11-19 07:43:08,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 129.75) internal successors, (519), 4 states have internal predecessors, (519), 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 07:43:08,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:08,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:08,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:43:08,510 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:43:08,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:08,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1219241384, now seen corresponding path program 1 times [2023-11-19 07:43:08,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:08,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367770484] [2023-11-19 07:43:08,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:08,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:08,689 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 07:43:08,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:08,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367770484] [2023-11-19 07:43:08,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367770484] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:08,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:08,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:43:08,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048832139] [2023-11-19 07:43:08,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:08,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:43:08,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:08,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:43:08,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:08,717 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 294 [2023-11-19 07:43:08,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 47 transitions, 346 flow. Second operand has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 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 07:43:08,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:08,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 294 [2023-11-19 07:43:08,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:09,531 INFO L124 PetriNetUnfolderBase]: 3832/5957 cut-off events. [2023-11-19 07:43:09,531 INFO L125 PetriNetUnfolderBase]: For 18582/18602 co-relation queries the response was YES. [2023-11-19 07:43:09,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23845 conditions, 5957 events. 3832/5957 cut-off events. For 18582/18602 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 34276 event pairs, 412 based on Foata normal form. 529/6432 useless extension candidates. Maximal degree in co-relation 23831. Up to 2465 conditions per place. [2023-11-19 07:43:09,558 INFO L140 encePairwiseOnDemand]: 287/294 looper letters, 98 selfloop transitions, 13 changer transitions 39/154 dead transitions. [2023-11-19 07:43:09,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 154 transitions, 1470 flow [2023-11-19 07:43:09,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:43:09,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:43:09,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 834 transitions. [2023-11-19 07:43:09,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47278911564625853 [2023-11-19 07:43:09,563 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 834 transitions. [2023-11-19 07:43:09,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 834 transitions. [2023-11-19 07:43:09,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:09,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 834 transitions. [2023-11-19 07:43:09,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 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 07:43:09,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 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 07:43:09,572 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 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 07:43:09,572 INFO L175 Difference]: Start difference. First operand has 56 places, 47 transitions, 346 flow. Second operand 6 states and 834 transitions. [2023-11-19 07:43:09,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 154 transitions, 1470 flow [2023-11-19 07:43:09,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 154 transitions, 1446 flow, removed 12 selfloop flow, removed 1 redundant places. [2023-11-19 07:43:09,637 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 437 flow [2023-11-19 07:43:09,638 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=437, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2023-11-19 07:43:09,638 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 12 predicate places. [2023-11-19 07:43:09,638 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 437 flow [2023-11-19 07:43:09,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 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 07:43:09,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:09,639 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:09,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:43:09,639 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:43:09,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:09,640 INFO L85 PathProgramCache]: Analyzing trace with hash 2060899428, now seen corresponding path program 1 times [2023-11-19 07:43:09,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:09,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235012350] [2023-11-19 07:43:09,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:09,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:09,859 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 07:43:09,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:09,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235012350] [2023-11-19 07:43:09,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235012350] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:09,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:09,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:43:09,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018246123] [2023-11-19 07:43:09,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:09,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:43:09,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:09,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:43:09,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:43:09,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 294 [2023-11-19 07:43:09,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 54 transitions, 437 flow. Second operand has 6 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 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 07:43:09,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:09,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 294 [2023-11-19 07:43:09,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:10,790 INFO L124 PetriNetUnfolderBase]: 3218/5119 cut-off events. [2023-11-19 07:43:10,790 INFO L125 PetriNetUnfolderBase]: For 18306/18323 co-relation queries the response was YES. [2023-11-19 07:43:10,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23849 conditions, 5119 events. 3218/5119 cut-off events. For 18306/18323 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 29950 event pairs, 279 based on Foata normal form. 234/5309 useless extension candidates. Maximal degree in co-relation 23832. Up to 2207 conditions per place. [2023-11-19 07:43:10,817 INFO L140 encePairwiseOnDemand]: 287/294 looper letters, 104 selfloop transitions, 21 changer transitions 60/189 dead transitions. [2023-11-19 07:43:10,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 189 transitions, 1862 flow [2023-11-19 07:43:10,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:43:10,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:43:10,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1110 transitions. [2023-11-19 07:43:10,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4719387755102041 [2023-11-19 07:43:10,825 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1110 transitions. [2023-11-19 07:43:10,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1110 transitions. [2023-11-19 07:43:10,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:10,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1110 transitions. [2023-11-19 07:43:10,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 138.75) internal successors, (1110), 8 states have internal predecessors, (1110), 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 07:43:10,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 294.0) internal successors, (2646), 9 states have internal predecessors, (2646), 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 07:43:10,837 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 294.0) internal successors, (2646), 9 states have internal predecessors, (2646), 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 07:43:10,837 INFO L175 Difference]: Start difference. First operand has 61 places, 54 transitions, 437 flow. Second operand 8 states and 1110 transitions. [2023-11-19 07:43:10,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 189 transitions, 1862 flow [2023-11-19 07:43:11,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 189 transitions, 1765 flow, removed 15 selfloop flow, removed 3 redundant places. [2023-11-19 07:43:11,146 INFO L231 Difference]: Finished difference. Result has 68 places, 59 transitions, 512 flow [2023-11-19 07:43:11,146 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=512, PETRI_PLACES=68, PETRI_TRANSITIONS=59} [2023-11-19 07:43:11,147 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 19 predicate places. [2023-11-19 07:43:11,147 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 59 transitions, 512 flow [2023-11-19 07:43:11,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 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 07:43:11,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:11,148 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] [2023-11-19 07:43:11,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:43:11,148 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:43:11,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:11,149 INFO L85 PathProgramCache]: Analyzing trace with hash 916691306, now seen corresponding path program 1 times [2023-11-19 07:43:11,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:11,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078440119] [2023-11-19 07:43:11,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:11,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:11,382 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 07:43:11,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:11,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078440119] [2023-11-19 07:43:11,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078440119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:11,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:11,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:43:11,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098114484] [2023-11-19 07:43:11,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:11,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:43:11,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:11,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:43:11,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:43:11,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 294 [2023-11-19 07:43:11,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 59 transitions, 512 flow. Second operand has 7 states, 7 states have (on average 127.85714285714286) internal successors, (895), 7 states have internal predecessors, (895), 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 07:43:11,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:11,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 294 [2023-11-19 07:43:11,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:12,384 INFO L124 PetriNetUnfolderBase]: 2731/4491 cut-off events. [2023-11-19 07:43:12,384 INFO L125 PetriNetUnfolderBase]: For 17148/17153 co-relation queries the response was YES. [2023-11-19 07:43:12,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20880 conditions, 4491 events. 2731/4491 cut-off events. For 17148/17153 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 27238 event pairs, 261 based on Foata normal form. 48/4498 useless extension candidates. Maximal degree in co-relation 20860. Up to 1344 conditions per place. [2023-11-19 07:43:12,403 INFO L140 encePairwiseOnDemand]: 287/294 looper letters, 87 selfloop transitions, 26 changer transitions 51/168 dead transitions. [2023-11-19 07:43:12,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 168 transitions, 1633 flow [2023-11-19 07:43:12,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:43:12,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:43:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1360 transitions. [2023-11-19 07:43:12,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46258503401360546 [2023-11-19 07:43:12,411 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1360 transitions. [2023-11-19 07:43:12,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1360 transitions. [2023-11-19 07:43:12,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:12,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1360 transitions. [2023-11-19 07:43:12,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:12,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 294.0) internal successors, (3234), 11 states have internal predecessors, (3234), 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 07:43:12,426 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 294.0) internal successors, (3234), 11 states have internal predecessors, (3234), 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 07:43:12,426 INFO L175 Difference]: Start difference. First operand has 68 places, 59 transitions, 512 flow. Second operand 10 states and 1360 transitions. [2023-11-19 07:43:12,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 168 transitions, 1633 flow [2023-11-19 07:43:12,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 168 transitions, 1457 flow, removed 41 selfloop flow, removed 6 redundant places. [2023-11-19 07:43:12,833 INFO L231 Difference]: Finished difference. Result has 74 places, 57 transitions, 456 flow [2023-11-19 07:43:12,834 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=456, PETRI_PLACES=74, PETRI_TRANSITIONS=57} [2023-11-19 07:43:12,834 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 25 predicate places. [2023-11-19 07:43:12,834 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 57 transitions, 456 flow [2023-11-19 07:43:12,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 127.85714285714286) internal successors, (895), 7 states have internal predecessors, (895), 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 07:43:12,835 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:12,835 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, 1] [2023-11-19 07:43:12,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:43:12,835 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:43:12,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:12,836 INFO L85 PathProgramCache]: Analyzing trace with hash -262369957, now seen corresponding path program 1 times [2023-11-19 07:43:12,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:12,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943762218] [2023-11-19 07:43:12,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:12,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:13,176 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 07:43:13,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:13,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943762218] [2023-11-19 07:43:13,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943762218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:13,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:13,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:13,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508447802] [2023-11-19 07:43:13,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:13,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:13,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:13,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:13,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:13,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 294 [2023-11-19 07:43:13,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 57 transitions, 456 flow. Second operand has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 07:43:13,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:13,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 294 [2023-11-19 07:43:13,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:13,715 INFO L124 PetriNetUnfolderBase]: 1614/2620 cut-off events. [2023-11-19 07:43:13,716 INFO L125 PetriNetUnfolderBase]: For 9335/9335 co-relation queries the response was YES. [2023-11-19 07:43:13,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12175 conditions, 2620 events. 1614/2620 cut-off events. For 9335/9335 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 13778 event pairs, 204 based on Foata normal form. 1/2621 useless extension candidates. Maximal degree in co-relation 12153. Up to 1290 conditions per place. [2023-11-19 07:43:13,728 INFO L140 encePairwiseOnDemand]: 285/294 looper letters, 67 selfloop transitions, 18 changer transitions 35/120 dead transitions. [2023-11-19 07:43:13,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 120 transitions, 1144 flow [2023-11-19 07:43:13,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:43:13,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:43:13,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 683 transitions. [2023-11-19 07:43:13,733 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46462585034013604 [2023-11-19 07:43:13,733 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 683 transitions. [2023-11-19 07:43:13,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 683 transitions. [2023-11-19 07:43:13,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:13,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 683 transitions. [2023-11-19 07:43:13,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.6) internal successors, (683), 5 states have internal predecessors, (683), 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 07:43:13,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 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 07:43:13,741 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 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 07:43:13,742 INFO L175 Difference]: Start difference. First operand has 74 places, 57 transitions, 456 flow. Second operand 5 states and 683 transitions. [2023-11-19 07:43:13,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 120 transitions, 1144 flow [2023-11-19 07:43:13,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 120 transitions, 927 flow, removed 45 selfloop flow, removed 12 redundant places. [2023-11-19 07:43:13,824 INFO L231 Difference]: Finished difference. Result has 68 places, 57 transitions, 429 flow [2023-11-19 07:43:13,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=429, PETRI_PLACES=68, PETRI_TRANSITIONS=57} [2023-11-19 07:43:13,825 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 19 predicate places. [2023-11-19 07:43:13,825 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 57 transitions, 429 flow [2023-11-19 07:43:13,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 07:43:13,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:13,826 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, 1] [2023-11-19 07:43:13,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:43:13,826 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:43:13,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:13,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1726167133, now seen corresponding path program 2 times [2023-11-19 07:43:13,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:13,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122501682] [2023-11-19 07:43:13,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:13,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:14,096 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 07:43:14,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:14,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122501682] [2023-11-19 07:43:14,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122501682] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:14,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:14,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:43:14,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254679454] [2023-11-19 07:43:14,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:14,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:43:14,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:14,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:43:14,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:14,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 294 [2023-11-19 07:43:14,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 57 transitions, 429 flow. Second operand has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 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 07:43:14,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:14,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 294 [2023-11-19 07:43:14,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:14,542 INFO L124 PetriNetUnfolderBase]: 1160/1873 cut-off events. [2023-11-19 07:43:14,542 INFO L125 PetriNetUnfolderBase]: For 5554/5554 co-relation queries the response was YES. [2023-11-19 07:43:14,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8383 conditions, 1873 events. 1160/1873 cut-off events. For 5554/5554 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8972 event pairs, 114 based on Foata normal form. 1/1874 useless extension candidates. Maximal degree in co-relation 8363. Up to 751 conditions per place. [2023-11-19 07:43:14,549 INFO L140 encePairwiseOnDemand]: 285/294 looper letters, 48 selfloop transitions, 11 changer transitions 68/127 dead transitions. [2023-11-19 07:43:14,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 127 transitions, 1097 flow [2023-11-19 07:43:14,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:43:14,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:43:14,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 817 transitions. [2023-11-19 07:43:14,553 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4631519274376417 [2023-11-19 07:43:14,553 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 817 transitions. [2023-11-19 07:43:14,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 817 transitions. [2023-11-19 07:43:14,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:14,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 817 transitions. [2023-11-19 07:43:14,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 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 07:43:14,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 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 07:43:14,562 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 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 07:43:14,562 INFO L175 Difference]: Start difference. First operand has 68 places, 57 transitions, 429 flow. Second operand 6 states and 817 transitions. [2023-11-19 07:43:14,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 127 transitions, 1097 flow [2023-11-19 07:43:14,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 127 transitions, 1069 flow, removed 14 selfloop flow, removed 4 redundant places. [2023-11-19 07:43:14,594 INFO L231 Difference]: Finished difference. Result has 65 places, 43 transitions, 310 flow [2023-11-19 07:43:14,595 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=310, PETRI_PLACES=65, PETRI_TRANSITIONS=43} [2023-11-19 07:43:14,595 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 16 predicate places. [2023-11-19 07:43:14,596 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 43 transitions, 310 flow [2023-11-19 07:43:14,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 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 07:43:14,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:14,596 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, 1] [2023-11-19 07:43:14,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:43:14,597 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:43:14,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:14,597 INFO L85 PathProgramCache]: Analyzing trace with hash 164464547, now seen corresponding path program 3 times [2023-11-19 07:43:14,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:14,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282129231] [2023-11-19 07:43:14,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:14,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:14,844 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 07:43:14,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:14,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282129231] [2023-11-19 07:43:14,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282129231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:14,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:14,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:14,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757105411] [2023-11-19 07:43:14,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:14,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:14,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:14,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:14,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:14,869 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 294 [2023-11-19 07:43:14,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 43 transitions, 310 flow. Second operand has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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 07:43:14,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:14,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 294 [2023-11-19 07:43:14,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:15,131 INFO L124 PetriNetUnfolderBase]: 531/897 cut-off events. [2023-11-19 07:43:15,132 INFO L125 PetriNetUnfolderBase]: For 3009/3009 co-relation queries the response was YES. [2023-11-19 07:43:15,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4091 conditions, 897 events. 531/897 cut-off events. For 3009/3009 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3888 event pairs, 116 based on Foata normal form. 1/898 useless extension candidates. Maximal degree in co-relation 4073. Up to 397 conditions per place. [2023-11-19 07:43:15,137 INFO L140 encePairwiseOnDemand]: 287/294 looper letters, 45 selfloop transitions, 6 changer transitions 27/78 dead transitions. [2023-11-19 07:43:15,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 78 transitions, 642 flow [2023-11-19 07:43:15,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:15,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:43:15,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 551 transitions. [2023-11-19 07:43:15,140 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4685374149659864 [2023-11-19 07:43:15,140 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 551 transitions. [2023-11-19 07:43:15,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 551 transitions. [2023-11-19 07:43:15,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:15,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 551 transitions. [2023-11-19 07:43:15,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 137.75) internal successors, (551), 4 states have internal predecessors, (551), 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 07:43:15,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 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 07:43:15,146 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 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 07:43:15,147 INFO L175 Difference]: Start difference. First operand has 65 places, 43 transitions, 310 flow. Second operand 4 states and 551 transitions. [2023-11-19 07:43:15,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 78 transitions, 642 flow [2023-11-19 07:43:15,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 78 transitions, 558 flow, removed 5 selfloop flow, removed 13 redundant places. [2023-11-19 07:43:15,162 INFO L231 Difference]: Finished difference. Result has 55 places, 36 transitions, 197 flow [2023-11-19 07:43:15,162 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=197, PETRI_PLACES=55, PETRI_TRANSITIONS=36} [2023-11-19 07:43:15,162 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 6 predicate places. [2023-11-19 07:43:15,163 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 36 transitions, 197 flow [2023-11-19 07:43:15,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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 07:43:15,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:15,163 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, 1] [2023-11-19 07:43:15,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:43:15,164 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:43:15,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:15,164 INFO L85 PathProgramCache]: Analyzing trace with hash 208075461, now seen corresponding path program 4 times [2023-11-19 07:43:15,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:15,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414025695] [2023-11-19 07:43:15,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:15,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:16,016 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 07:43:16,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:16,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414025695] [2023-11-19 07:43:16,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414025695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:16,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:16,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:43:16,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085331684] [2023-11-19 07:43:16,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:16,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:43:16,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:16,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:43:16,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:43:16,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 294 [2023-11-19 07:43:16,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 36 transitions, 197 flow. Second operand has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 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 07:43:16,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:16,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 294 [2023-11-19 07:43:16,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:16,282 INFO L124 PetriNetUnfolderBase]: 103/199 cut-off events. [2023-11-19 07:43:16,282 INFO L125 PetriNetUnfolderBase]: For 400/400 co-relation queries the response was YES. [2023-11-19 07:43:16,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 199 events. 103/199 cut-off events. For 400/400 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 591 event pairs, 1 based on Foata normal form. 1/200 useless extension candidates. Maximal degree in co-relation 770. Up to 81 conditions per place. [2023-11-19 07:43:16,283 INFO L140 encePairwiseOnDemand]: 283/294 looper letters, 40 selfloop transitions, 9 changer transitions 25/74 dead transitions. [2023-11-19 07:43:16,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 74 transitions, 570 flow [2023-11-19 07:43:16,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:43:16,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:43:16,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1011 transitions. [2023-11-19 07:43:16,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4298469387755102 [2023-11-19 07:43:16,289 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1011 transitions. [2023-11-19 07:43:16,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1011 transitions. [2023-11-19 07:43:16,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:16,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1011 transitions. [2023-11-19 07:43:16,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 126.375) internal successors, (1011), 8 states have internal predecessors, (1011), 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 07:43:16,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 294.0) internal successors, (2646), 9 states have internal predecessors, (2646), 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 07:43:16,299 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 294.0) internal successors, (2646), 9 states have internal predecessors, (2646), 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 07:43:16,299 INFO L175 Difference]: Start difference. First operand has 55 places, 36 transitions, 197 flow. Second operand 8 states and 1011 transitions. [2023-11-19 07:43:16,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 74 transitions, 570 flow [2023-11-19 07:43:16,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 74 transitions, 493 flow, removed 6 selfloop flow, removed 11 redundant places. [2023-11-19 07:43:16,304 INFO L231 Difference]: Finished difference. Result has 53 places, 36 transitions, 176 flow [2023-11-19 07:43:16,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=176, PETRI_PLACES=53, PETRI_TRANSITIONS=36} [2023-11-19 07:43:16,305 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 4 predicate places. [2023-11-19 07:43:16,306 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 36 transitions, 176 flow [2023-11-19 07:43:16,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 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 07:43:16,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:16,307 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, 1] [2023-11-19 07:43:16,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:43:16,307 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:43:16,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:16,307 INFO L85 PathProgramCache]: Analyzing trace with hash 687011363, now seen corresponding path program 5 times [2023-11-19 07:43:16,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:16,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633582131] [2023-11-19 07:43:16,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:16,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:43:16,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:43:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:43:16,508 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:43:16,511 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:43:16,513 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2023-11-19 07:43:16,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2023-11-19 07:43:16,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2023-11-19 07:43:16,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2023-11-19 07:43:16,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2023-11-19 07:43:16,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2023-11-19 07:43:16,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2023-11-19 07:43:16,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2023-11-19 07:43:16,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2023-11-19 07:43:16,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2023-11-19 07:43:16,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2023-11-19 07:43:16,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2023-11-19 07:43:16,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2023-11-19 07:43:16,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2023-11-19 07:43:16,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2023-11-19 07:43:16,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2023-11-19 07:43:16,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 07:43:16,524 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:16,532 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:43:16,532 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:43:16,631 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-19 07:43:16,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-19 07:43:16,637 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 07:43:16,645 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-19 07:43:16,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-11-19 07:43:16,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:43:16 BasicIcfg [2023-11-19 07:43:16,681 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:43:16,682 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:43:16,682 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:43:16,682 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:43:16,683 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:46" (3/4) ... [2023-11-19 07:43:16,685 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:43:16,686 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:43:16,687 INFO L158 Benchmark]: Toolchain (without parser) took 32158.74ms. Allocated memory was 161.5MB in the beginning and 2.7GB in the end (delta: 2.6GB). Free memory was 127.0MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2023-11-19 07:43:16,687 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 119.5MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:43:16,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 622.28ms. Allocated memory is still 161.5MB. Free memory was 127.0MB in the beginning and 104.0MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:43:16,688 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.44ms. Allocated memory is still 161.5MB. Free memory was 104.0MB in the beginning and 101.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:43:16,689 INFO L158 Benchmark]: Boogie Preprocessor took 63.78ms. Allocated memory is still 161.5MB. Free memory was 101.2MB in the beginning and 99.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:43:16,689 INFO L158 Benchmark]: RCFGBuilder took 842.79ms. Allocated memory is still 161.5MB. Free memory was 99.1MB in the beginning and 123.9MB in the end (delta: -24.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-19 07:43:16,689 INFO L158 Benchmark]: TraceAbstraction took 30509.41ms. Allocated memory was 161.5MB in the beginning and 2.7GB in the end (delta: 2.6GB). Free memory was 123.1MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2023-11-19 07:43:16,690 INFO L158 Benchmark]: Witness Printer took 4.50ms. Allocated memory is still 2.7GB. Free memory is still 1.5GB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:43:16,692 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 119.5MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 622.28ms. Allocated memory is still 161.5MB. Free memory was 127.0MB in the beginning and 104.0MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.44ms. Allocated memory is still 161.5MB. Free memory was 104.0MB in the beginning and 101.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.78ms. Allocated memory is still 161.5MB. Free memory was 101.2MB in the beginning and 99.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 842.79ms. Allocated memory is still 161.5MB. Free memory was 99.1MB in the beginning and 123.9MB in the end (delta: -24.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 30509.41ms. Allocated memory was 161.5MB in the beginning and 2.7GB in the end (delta: 2.6GB). Free memory was 123.1MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 4.50ms. Allocated memory is still 2.7GB. Free memory is still 1.5GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet0 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4s, 154 PlacesBefore, 49 PlacesAfterwards, 144 TransitionsBefore, 37 TransitionsAfterwards, 3880 CoEnabledTransitionPairs, 7 FixpointIterations, 49 TrivialSequentialCompositions, 83 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 146 TotalNumberOfCompositions, 7782 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4651, independent: 4471, independent conditional: 0, independent unconditional: 4471, dependent: 180, dependent conditional: 0, dependent unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2137, independent: 2088, independent conditional: 0, independent unconditional: 2088, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4651, independent: 2383, independent conditional: 0, independent unconditional: 2383, dependent: 131, dependent conditional: 0, dependent unconditional: 131, unknown: 2137, unknown conditional: 0, unknown unconditional: 2137] , Statistics on independence cache: Total cache size (in pairs): 158, Positive cache size: 138, Positive conditional cache size: 0, Positive unconditional cache size: 138, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p2_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int a = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L722] 0 int y = 0; [L724] 0 int z = 0; [L725] 0 _Bool z$flush_delayed; [L726] 0 int z$mem_tmp; [L727] 0 _Bool z$r_buff0_thd0; [L728] 0 _Bool z$r_buff0_thd1; [L729] 0 _Bool z$r_buff0_thd2; [L730] 0 _Bool z$r_buff0_thd3; [L731] 0 _Bool z$r_buff0_thd4; [L732] 0 _Bool z$r_buff1_thd0; [L733] 0 _Bool z$r_buff1_thd1; [L734] 0 _Bool z$r_buff1_thd2; [L735] 0 _Bool z$r_buff1_thd3; [L736] 0 _Bool z$r_buff1_thd4; [L737] 0 _Bool z$read_delayed; [L738] 0 int *z$read_delayed_var; [L739] 0 int z$w_buff0; [L740] 0 _Bool z$w_buff0_used; [L741] 0 int z$w_buff1; [L742] 0 _Bool z$w_buff1_used; [L743] 0 _Bool weak$$choice0; [L744] 0 _Bool weak$$choice2; [L844] 0 pthread_t t1413; [L845] FCALL, FORK 0 pthread_create(&t1413, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1413={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L846] 0 pthread_t t1414; [L847] FCALL, FORK 0 pthread_create(&t1414, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1413={5:0}, t1414={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L848] 0 pthread_t t1415; [L849] FCALL, FORK 0 pthread_create(&t1415, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1413={5:0}, t1414={6:0}, t1415={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L850] 0 pthread_t t1416; [L851] FCALL, FORK 0 pthread_create(&t1416, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1413={5:0}, t1414={6:0}, t1415={7:0}, t1416={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L806] 4 z$w_buff1 = z$w_buff0 [L807] 4 z$w_buff0 = 1 [L808] 4 z$w_buff1_used = z$w_buff0_used [L809] 4 z$w_buff0_used = (_Bool)1 [L810] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L810] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L811] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L812] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L813] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L814] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L815] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L816] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L819] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L748] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L763] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L766] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L778] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L781] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L782] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L783] 3 z$flush_delayed = weak$$choice2 [L784] 3 z$mem_tmp = z [L785] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L786] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L787] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L788] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L789] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L790] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L791] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L792] 3 __unbuffered_p2_EAX = z [L793] 3 z = z$flush_delayed ? z$mem_tmp : z [L794] 3 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L822] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L823] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L824] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L825] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L826] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L829] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L831] 4 return 0; [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L758] 1 return 0; [L771] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L773] 2 return 0; [L799] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L801] 3 return 0; [L853] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L855] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L855] RET 0 assume_abort_if_not(main$tmp_guard0) [L857] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L858] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L859] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L860] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L861] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1413={5:0}, t1414={6:0}, t1415={7:0}, t1416={3:0}, weak$$choice2=1, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L864] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) [L866] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) [L17] 0 __assert_fail ("0", "mix053.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=1, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 842]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 849]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 845]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 847]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 183 locations, 16 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: 30.2s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 18.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 847 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 679 mSDsluCounter, 187 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 135 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1969 IncrementalHoareTripleChecker+Invalid, 2091 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 52 mSDtfsCounter, 1969 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=512occurred in iteration=10, InterpolantAutomatonStates: 78, 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 1547 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 07:43:16,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/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_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix053.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 998817f829569afa1d1e3eda89c2594d280c8ae81957c207a6b68804966cf3a6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:43:19,461 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:43:19,592 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-19 07:43:19,601 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:43:19,602 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:43:19,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:43:19,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:43:19,653 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:43:19,654 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:43:19,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:43:19,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:43:19,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:43:19,660 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:43:19,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:43:19,663 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:43:19,663 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:43:19,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:43:19,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:43:19,665 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:43:19,665 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:43:19,666 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:43:19,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:43:19,667 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:43:19,667 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:43:19,667 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:43:19,668 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:43:19,668 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:43:19,669 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:43:19,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:43:19,670 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:43:19,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:43:19,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:19,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:43:19,673 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:43:19,673 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:43:19,674 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:43:19,674 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:43:19,674 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:43:19,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:43:19,676 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:43:19,676 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:43:19,676 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_5384d825-92df-486b-8727-a8f4632e4f29/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 998817f829569afa1d1e3eda89c2594d280c8ae81957c207a6b68804966cf3a6 [2023-11-19 07:43:20,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:43:20,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:43:20,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:43:20,157 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:43:20,158 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:43:20,159 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix053.opt.i [2023-11-19 07:43:23,249 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:43:23,628 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:43:23,629 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/sv-benchmarks/c/pthread-wmm/mix053.opt.i [2023-11-19 07:43:23,661 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/data/3f7c0008a/11d9008df85d445b85fe79c2dc8ae9ac/FLAGa579de442 [2023-11-19 07:43:23,686 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/data/3f7c0008a/11d9008df85d445b85fe79c2dc8ae9ac [2023-11-19 07:43:23,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:43:23,695 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:43:23,702 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:23,702 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:43:23,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:43:23,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f6a0440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23, skipping insertion in model container [2023-11-19 07:43:23,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,796 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:24,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:24,407 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:43:24,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:24,592 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:43:24,592 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:43:24,600 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:43:24,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24 WrapperNode [2023-11-19 07:43:24,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:24,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:24,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:43:24,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:43:24,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2023-11-19 07:43:24,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2023-11-19 07:43:24,700 INFO L138 Inliner]: procedures = 180, calls = 68, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 149 [2023-11-19 07:43:24,701 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:24,702 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:43:24,702 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:43:24,702 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:43:24,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2023-11-19 07:43:24,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2023-11-19 07:43:24,733 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2023-11-19 07:43:24,733 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2023-11-19 07:43:24,744 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2023-11-19 07:43:24,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2023-11-19 07:43:24,764 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2023-11-19 07:43:24,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2023-11-19 07:43:24,771 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:43:24,772 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:43:24,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:43:24,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:43:24,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2023-11-19 07:43:24,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:24,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:24,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:43:24,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5384d825-92df-486b-8727-a8f4632e4f29/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:43:24,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:43:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:43:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:43:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:43:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:43:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:43:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:43:24,873 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:43:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:43:24,874 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:43:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:43:24,874 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:43:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 07:43:24,874 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 07:43:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:43:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:43:24,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:43:24,877 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 07:43:25,067 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:43:25,069 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:43:25,461 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:25,626 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:25,632 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:43:25,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:25 BoogieIcfgContainer [2023-11-19 07:43:25,638 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:25,641 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:25,642 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:25,645 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:25,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:23" (1/3) ... [2023-11-19 07:43:25,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65cf12aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:25, skipping insertion in model container [2023-11-19 07:43:25,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (2/3) ... [2023-11-19 07:43:25,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65cf12aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:25, skipping insertion in model container [2023-11-19 07:43:25,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:25" (3/3) ... [2023-11-19 07:43:25,651 INFO L112 eAbstractionObserver]: Analyzing ICFG mix053.opt.i [2023-11-19 07:43:25,672 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:25,672 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-19 07:43:25,672 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:43:25,781 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:43:25,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 149 transitions, 314 flow [2023-11-19 07:43:25,957 INFO L124 PetriNetUnfolderBase]: 3/145 cut-off events. [2023-11-19 07:43:25,957 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:43:25,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 3/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 119 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-11-19 07:43:25,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 159 places, 149 transitions, 314 flow [2023-11-19 07:43:25,972 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 155 places, 145 transitions, 302 flow [2023-11-19 07:43:25,976 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:43:25,985 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 155 places, 145 transitions, 302 flow [2023-11-19 07:43:25,988 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 155 places, 145 transitions, 302 flow [2023-11-19 07:43:25,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 145 transitions, 302 flow [2023-11-19 07:43:26,023 INFO L124 PetriNetUnfolderBase]: 3/145 cut-off events. [2023-11-19 07:43:26,023 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:43:26,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 3/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 119 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-11-19 07:43:26,029 INFO L119 LiptonReduction]: Number of co-enabled transitions 3880