./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl --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 f5d83fc7ee9b26859e9993ee2fcff801f4a9d92dea17a48a6a39594bb6b759ca --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:17:40,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:17:41,084 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:17:41,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:17:41,095 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:17:41,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:17:41,138 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:17:41,138 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:17:41,140 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:17:41,145 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:17:41,147 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:17:41,147 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:17:41,148 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:17:41,150 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:17:41,150 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:17:41,151 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:17:41,151 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:17:41,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:17:41,152 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:17:41,153 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:17:41,153 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:17:41,154 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:17:41,154 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:17:41,155 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:17:41,155 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:17:41,156 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:17:41,157 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:17:41,157 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:17:41,158 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:17:41,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:41,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:17:41,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:17:41,160 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:17:41,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:17:41,161 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:17:41,161 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:17:41,161 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:17:41,162 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:17:41,162 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_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5d83fc7ee9b26859e9993ee2fcff801f4a9d92dea17a48a6a39594bb6b759ca [2023-11-12 02:17:41,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:17:41,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:17:41,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:17:41,568 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:17:41,569 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:17:41,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i [2023-11-12 02:17:44,709 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:17:45,138 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:17:45,138 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i [2023-11-12 02:17:45,158 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/data/3c5304921/06c19aa6fd7546fb9a0e522840e71655/FLAG5142c2dd2 [2023-11-12 02:17:45,172 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/data/3c5304921/06c19aa6fd7546fb9a0e522840e71655 [2023-11-12 02:17:45,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:17:45,176 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:17:45,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:45,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:17:45,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:17:45,183 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:45,184 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306c329d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45, skipping insertion in model container [2023-11-12 02:17:45,184 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:45,237 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:17:45,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:45,673 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:17:45,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:45,836 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:17:45,837 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:17:45,846 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:17:45,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45 WrapperNode [2023-11-12 02:17:45,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:45,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:45,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:17:45,848 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:17:45,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:45,880 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:45,916 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 152 [2023-11-12 02:17:45,917 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:45,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:17:45,918 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:17:45,918 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:17:45,942 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:45,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:45,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:45,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:45,970 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:45,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:45,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:46,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:46,011 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:17:46,019 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:17:46,019 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:17:46,019 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:17:46,020 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:46,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:46,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:46,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:17:46,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:17:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:17:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:17:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:17:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:17:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:17:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:17:46,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:17:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:17:46,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:17:46,120 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 02:17:46,120 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 02:17:46,120 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 02:17:46,120 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 02:17:46,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:17:46,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:17:46,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:17:46,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:17:46,125 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:17:46,341 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:17:46,344 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:17:46,794 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:17:47,026 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:17:47,027 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:17:47,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:47 BoogieIcfgContainer [2023-11-12 02:17:47,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:17:47,033 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:17:47,033 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:17:47,037 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:17:47,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:17:45" (1/3) ... [2023-11-12 02:17:47,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b17ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:47, skipping insertion in model container [2023-11-12 02:17:47,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (2/3) ... [2023-11-12 02:17:47,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b17ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:47, skipping insertion in model container [2023-11-12 02:17:47,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:47" (3/3) ... [2023-11-12 02:17:47,040 INFO L112 eAbstractionObserver]: Analyzing ICFG mix036_power.opt_rmo.opt.i [2023-11-12 02:17:47,060 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:17:47,061 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-12 02:17:47,061 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:17:47,130 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:17:47,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 152 transitions, 320 flow [2023-11-12 02:17:47,244 INFO L124 PetriNetUnfolderBase]: 3/148 cut-off events. [2023-11-12 02:17:47,245 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:47,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 148 events. 3/148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 116 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-11-12 02:17:47,253 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 152 transitions, 320 flow [2023-11-12 02:17:47,259 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 148 transitions, 308 flow [2023-11-12 02:17:47,263 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:17:47,275 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 148 transitions, 308 flow [2023-11-12 02:17:47,284 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 148 transitions, 308 flow [2023-11-12 02:17:47,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 148 transitions, 308 flow [2023-11-12 02:17:47,360 INFO L124 PetriNetUnfolderBase]: 3/148 cut-off events. [2023-11-12 02:17:47,360 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:47,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 148 events. 3/148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 116 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-11-12 02:17:47,367 INFO L119 LiptonReduction]: Number of co-enabled transitions 3802 [2023-11-12 02:17:53,769 INFO L134 LiptonReduction]: Checked pairs total: 9403 [2023-11-12 02:17:53,769 INFO L136 LiptonReduction]: Total number of compositions: 152 [2023-11-12 02:17:53,786 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:53,793 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;@7ccca4cd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:53,793 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-12 02:17:53,795 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:17:53,795 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-12 02:17:53,796 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:53,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:53,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:17:53,797 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:17:53,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:53,803 INFO L85 PathProgramCache]: Analyzing trace with hash 646, now seen corresponding path program 1 times [2023-11-12 02:17:53,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:53,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517893252] [2023-11-12 02:17:53,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:53,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:53,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:53,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:53,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517893252] [2023-11-12 02:17:53,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517893252] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:53,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:53,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:17:53,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693776347] [2023-11-12 02:17:53,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:53,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:17:53,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:53,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:17:53,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:17:53,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 304 [2023-11-12 02:17:53,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 90 flow. Second operand has 2 states, 2 states have (on average 138.5) internal successors, (277), 2 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:53,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:53,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 304 [2023-11-12 02:17:53,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:55,345 INFO L124 PetriNetUnfolderBase]: 5435/7819 cut-off events. [2023-11-12 02:17:55,345 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-12 02:17:55,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15363 conditions, 7819 events. 5435/7819 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 42728 event pairs, 5435 based on Foata normal form. 0/7002 useless extension candidates. Maximal degree in co-relation 15351. Up to 7387 conditions per place. [2023-11-12 02:17:55,422 INFO L140 encePairwiseOnDemand]: 295/304 looper letters, 26 selfloop transitions, 0 changer transitions 0/30 dead transitions. [2023-11-12 02:17:55,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 30 transitions, 124 flow [2023-11-12 02:17:55,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:17:55,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:17:55,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 311 transitions. [2023-11-12 02:17:55,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5115131578947368 [2023-11-12 02:17:55,444 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 311 transitions. [2023-11-12 02:17:55,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 311 transitions. [2023-11-12 02:17:55,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:55,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 311 transitions. [2023-11-12 02:17:55,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 155.5) internal successors, (311), 2 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:55,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:55,466 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:55,468 INFO L175 Difference]: Start difference. First operand has 51 places, 39 transitions, 90 flow. Second operand 2 states and 311 transitions. [2023-11-12 02:17:55,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 30 transitions, 124 flow [2023-11-12 02:17:55,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 30 transitions, 120 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:17:55,479 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 68 flow [2023-11-12 02:17:55,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=68, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2023-11-12 02:17:55,485 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -11 predicate places. [2023-11-12 02:17:55,485 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 68 flow [2023-11-12 02:17:55,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 138.5) internal successors, (277), 2 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:55,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:55,486 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:55,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:17:55,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:17:55,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:55,487 INFO L85 PathProgramCache]: Analyzing trace with hash -373781025, now seen corresponding path program 1 times [2023-11-12 02:17:55,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:55,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241962171] [2023-11-12 02:17:55,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:55,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:55,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:55,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:55,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241962171] [2023-11-12 02:17:55,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241962171] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:55,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:55,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:17:55,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701638234] [2023-11-12 02:17:55,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:55,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:55,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:55,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:55,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:55,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 304 [2023-11-12 02:17:55,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:55,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:55,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 304 [2023-11-12 02:17:55,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:57,003 INFO L124 PetriNetUnfolderBase]: 4279/6315 cut-off events. [2023-11-12 02:17:57,004 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:57,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12292 conditions, 6315 events. 4279/6315 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 36159 event pairs, 811 based on Foata normal form. 0/6050 useless extension candidates. Maximal degree in co-relation 12289. Up to 4621 conditions per place. [2023-11-12 02:17:57,057 INFO L140 encePairwiseOnDemand]: 301/304 looper letters, 37 selfloop transitions, 2 changer transitions 2/45 dead transitions. [2023-11-12 02:17:57,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 182 flow [2023-11-12 02:17:57,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:57,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:17:57,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2023-11-12 02:17:57,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4967105263157895 [2023-11-12 02:17:57,061 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2023-11-12 02:17:57,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2023-11-12 02:17:57,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:57,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2023-11-12 02:17:57,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:57,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:57,080 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:57,080 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 68 flow. Second operand 3 states and 453 transitions. [2023-11-12 02:17:57,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 182 flow [2023-11-12 02:17:57,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 182 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:17:57,083 INFO L231 Difference]: Finished difference. Result has 41 places, 28 transitions, 68 flow [2023-11-12 02:17:57,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=41, PETRI_TRANSITIONS=28} [2023-11-12 02:17:57,086 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -10 predicate places. [2023-11-12 02:17:57,086 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 28 transitions, 68 flow [2023-11-12 02:17:57,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:57,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:57,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:57,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:17:57,091 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:17:57,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:57,092 INFO L85 PathProgramCache]: Analyzing trace with hash 568195609, now seen corresponding path program 1 times [2023-11-12 02:17:57,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:57,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265901226] [2023-11-12 02:17:57,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:57,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:57,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:57,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:57,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265901226] [2023-11-12 02:17:57,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265901226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:57,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:57,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:17:57,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755651190] [2023-11-12 02:17:57,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:57,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:57,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:57,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:57,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:57,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 304 [2023-11-12 02:17:57,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 28 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:57,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:57,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 304 [2023-11-12 02:17:57,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:59,347 INFO L124 PetriNetUnfolderBase]: 8375/11904 cut-off events. [2023-11-12 02:17:59,348 INFO L125 PetriNetUnfolderBase]: For 588/588 co-relation queries the response was YES. [2023-11-12 02:17:59,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24127 conditions, 11904 events. 8375/11904 cut-off events. For 588/588 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 63050 event pairs, 3435 based on Foata normal form. 0/11440 useless extension candidates. Maximal degree in co-relation 24123. Up to 9745 conditions per place. [2023-11-12 02:17:59,440 INFO L140 encePairwiseOnDemand]: 296/304 looper letters, 44 selfloop transitions, 7 changer transitions 0/52 dead transitions. [2023-11-12 02:17:59,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 226 flow [2023-11-12 02:17:59,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:59,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:17:59,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 439 transitions. [2023-11-12 02:17:59,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48135964912280704 [2023-11-12 02:17:59,443 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 439 transitions. [2023-11-12 02:17:59,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 439 transitions. [2023-11-12 02:17:59,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:59,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 439 transitions. [2023-11-12 02:17:59,447 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) [2023-11-12 02:17:59,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:59,450 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:59,451 INFO L175 Difference]: Start difference. First operand has 41 places, 28 transitions, 68 flow. Second operand 3 states and 439 transitions. [2023-11-12 02:17:59,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 226 flow [2023-11-12 02:17:59,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 52 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:17:59,455 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 118 flow [2023-11-12 02:17:59,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2023-11-12 02:17:59,457 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -9 predicate places. [2023-11-12 02:17:59,457 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 118 flow [2023-11-12 02:17:59,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:59,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:59,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:59,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:17:59,463 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:17:59,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:59,464 INFO L85 PathProgramCache]: Analyzing trace with hash 434195585, now seen corresponding path program 1 times [2023-11-12 02:17:59,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:59,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442838876] [2023-11-12 02:17:59,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:59,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:00,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:00,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:00,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442838876] [2023-11-12 02:18:00,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442838876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:00,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:00,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:18:00,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821487417] [2023-11-12 02:18:00,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:00,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:18:00,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:00,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:18:00,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:18:00,577 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 304 [2023-11-12 02:18:00,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 118 flow. Second operand has 7 states, 7 states have (on average 120.71428571428571) internal successors, (845), 7 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:00,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:00,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 304 [2023-11-12 02:18:00,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:02,671 INFO L124 PetriNetUnfolderBase]: 8162/11838 cut-off events. [2023-11-12 02:18:02,672 INFO L125 PetriNetUnfolderBase]: For 2455/2467 co-relation queries the response was YES. [2023-11-12 02:18:02,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27135 conditions, 11838 events. 8162/11838 cut-off events. For 2455/2467 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 66468 event pairs, 1244 based on Foata normal form. 618/12344 useless extension candidates. Maximal degree in co-relation 27130. Up to 7221 conditions per place. [2023-11-12 02:18:02,765 INFO L140 encePairwiseOnDemand]: 296/304 looper letters, 49 selfloop transitions, 6 changer transitions 16/77 dead transitions. [2023-11-12 02:18:02,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 77 transitions, 380 flow [2023-11-12 02:18:02,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:18:02,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:18:02,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 898 transitions. [2023-11-12 02:18:02,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42199248120300753 [2023-11-12 02:18:02,770 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 898 transitions. [2023-11-12 02:18:02,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 898 transitions. [2023-11-12 02:18:02,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:02,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 898 transitions. [2023-11-12 02:18:02,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.28571428571428) internal successors, (898), 7 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:02,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 304.0) internal successors, (2432), 8 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:02,782 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 304.0) internal successors, (2432), 8 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:02,782 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 118 flow. Second operand 7 states and 898 transitions. [2023-11-12 02:18:02,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 77 transitions, 380 flow [2023-11-12 02:18:02,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 77 transitions, 354 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:18:02,824 INFO L231 Difference]: Finished difference. Result has 48 places, 33 transitions, 121 flow [2023-11-12 02:18:02,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=121, PETRI_PLACES=48, PETRI_TRANSITIONS=33} [2023-11-12 02:18:02,826 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2023-11-12 02:18:02,826 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 33 transitions, 121 flow [2023-11-12 02:18:02,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.71428571428571) internal successors, (845), 7 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:02,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:02,828 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:02,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:18:02,828 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:18:02,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:02,829 INFO L85 PathProgramCache]: Analyzing trace with hash 572256641, now seen corresponding path program 1 times [2023-11-12 02:18:02,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:02,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949661363] [2023-11-12 02:18:02,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:02,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:03,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:03,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:03,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949661363] [2023-11-12 02:18:03,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949661363] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:03,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:03,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:18:03,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837562904] [2023-11-12 02:18:03,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:03,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:18:03,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:03,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:18:03,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:18:03,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 304 [2023-11-12 02:18:03,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 33 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 134.25) internal successors, (537), 4 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:03,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:03,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 304 [2023-11-12 02:18:03,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:04,167 INFO L124 PetriNetUnfolderBase]: 4637/7054 cut-off events. [2023-11-12 02:18:04,167 INFO L125 PetriNetUnfolderBase]: For 1758/1758 co-relation queries the response was YES. [2023-11-12 02:18:04,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16790 conditions, 7054 events. 4637/7054 cut-off events. For 1758/1758 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 41449 event pairs, 887 based on Foata normal form. 414/6974 useless extension candidates. Maximal degree in co-relation 16783. Up to 4592 conditions per place. [2023-11-12 02:18:04,229 INFO L140 encePairwiseOnDemand]: 297/304 looper letters, 62 selfloop transitions, 10 changer transitions 0/79 dead transitions. [2023-11-12 02:18:04,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 79 transitions, 400 flow [2023-11-12 02:18:04,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:18:04,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:18:04,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 724 transitions. [2023-11-12 02:18:04,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4763157894736842 [2023-11-12 02:18:04,233 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 724 transitions. [2023-11-12 02:18:04,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 724 transitions. [2023-11-12 02:18:04,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:04,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 724 transitions. [2023-11-12 02:18:04,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.8) internal successors, (724), 5 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:04,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:04,243 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:04,243 INFO L175 Difference]: Start difference. First operand has 48 places, 33 transitions, 121 flow. Second operand 5 states and 724 transitions. [2023-11-12 02:18:04,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 79 transitions, 400 flow [2023-11-12 02:18:04,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 79 transitions, 372 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-11-12 02:18:04,263 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 182 flow [2023-11-12 02:18:04,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=182, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2023-11-12 02:18:04,266 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2023-11-12 02:18:04,267 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 182 flow [2023-11-12 02:18:04,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 134.25) internal successors, (537), 4 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:04,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:04,267 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:04,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:18:04,268 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:18:04,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:04,268 INFO L85 PathProgramCache]: Analyzing trace with hash 930251927, now seen corresponding path program 1 times [2023-11-12 02:18:04,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:04,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543653910] [2023-11-12 02:18:04,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:04,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:04,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:04,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:04,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543653910] [2023-11-12 02:18:04,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543653910] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:04,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:04,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:18:04,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722268274] [2023-11-12 02:18:04,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:04,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:18:04,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:04,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:18:04,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:18:04,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 304 [2023-11-12 02:18:04,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:04,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:04,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 304 [2023-11-12 02:18:04,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:05,444 INFO L124 PetriNetUnfolderBase]: 3256/5050 cut-off events. [2023-11-12 02:18:05,444 INFO L125 PetriNetUnfolderBase]: For 2819/2837 co-relation queries the response was YES. [2023-11-12 02:18:05,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14913 conditions, 5050 events. 3256/5050 cut-off events. For 2819/2837 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 28815 event pairs, 392 based on Foata normal form. 287/5096 useless extension candidates. Maximal degree in co-relation 14904. Up to 1561 conditions per place. [2023-11-12 02:18:05,478 INFO L140 encePairwiseOnDemand]: 297/304 looper letters, 82 selfloop transitions, 19 changer transitions 0/108 dead transitions. [2023-11-12 02:18:05,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 108 transitions, 610 flow [2023-11-12 02:18:05,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:18:05,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:18:05,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1015 transitions. [2023-11-12 02:18:05,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4769736842105263 [2023-11-12 02:18:05,484 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1015 transitions. [2023-11-12 02:18:05,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1015 transitions. [2023-11-12 02:18:05,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:05,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1015 transitions. [2023-11-12 02:18:05,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:05,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 304.0) internal successors, (2432), 8 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:05,495 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 304.0) internal successors, (2432), 8 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:05,495 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 182 flow. Second operand 7 states and 1015 transitions. [2023-11-12 02:18:05,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 108 transitions, 610 flow [2023-11-12 02:18:05,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 108 transitions, 605 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:18:05,512 INFO L231 Difference]: Finished difference. Result has 56 places, 51 transitions, 311 flow [2023-11-12 02:18:05,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=311, PETRI_PLACES=56, PETRI_TRANSITIONS=51} [2023-11-12 02:18:05,514 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 5 predicate places. [2023-11-12 02:18:05,514 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 51 transitions, 311 flow [2023-11-12 02:18:05,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:05,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:05,515 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:05,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:18:05,515 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:18:05,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:05,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1739167217, now seen corresponding path program 1 times [2023-11-12 02:18:05,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:05,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438073394] [2023-11-12 02:18:05,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:05,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:05,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:05,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:05,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438073394] [2023-11-12 02:18:05,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438073394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:05,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:05,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:18:05,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686038706] [2023-11-12 02:18:05,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:05,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:18:05,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:05,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:18:05,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:18:05,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 304 [2023-11-12 02:18:05,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 51 transitions, 311 flow. Second operand has 5 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:05,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:05,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 304 [2023-11-12 02:18:05,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:07,085 INFO L124 PetriNetUnfolderBase]: 5456/8240 cut-off events. [2023-11-12 02:18:07,086 INFO L125 PetriNetUnfolderBase]: For 16601/16601 co-relation queries the response was YES. [2023-11-12 02:18:07,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29790 conditions, 8240 events. 5456/8240 cut-off events. For 16601/16601 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 45975 event pairs, 732 based on Foata normal form. 0/8163 useless extension candidates. Maximal degree in co-relation 29778. Up to 4319 conditions per place. [2023-11-12 02:18:07,148 INFO L140 encePairwiseOnDemand]: 295/304 looper letters, 113 selfloop transitions, 15 changer transitions 30/159 dead transitions. [2023-11-12 02:18:07,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 159 transitions, 1271 flow [2023-11-12 02:18:07,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:18:07,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:18:07,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 868 transitions. [2023-11-12 02:18:07,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4758771929824561 [2023-11-12 02:18:07,155 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 868 transitions. [2023-11-12 02:18:07,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 868 transitions. [2023-11-12 02:18:07,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:07,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 868 transitions. [2023-11-12 02:18:07,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 144.66666666666666) internal successors, (868), 6 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:07,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 304.0) internal successors, (2128), 7 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:07,171 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 304.0) internal successors, (2128), 7 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:07,172 INFO L175 Difference]: Start difference. First operand has 56 places, 51 transitions, 311 flow. Second operand 6 states and 868 transitions. [2023-11-12 02:18:07,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 159 transitions, 1271 flow [2023-11-12 02:18:07,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 159 transitions, 1132 flow, removed 47 selfloop flow, removed 3 redundant places. [2023-11-12 02:18:07,424 INFO L231 Difference]: Finished difference. Result has 61 places, 52 transitions, 298 flow [2023-11-12 02:18:07,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=298, PETRI_PLACES=61, PETRI_TRANSITIONS=52} [2023-11-12 02:18:07,426 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 10 predicate places. [2023-11-12 02:18:07,426 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 52 transitions, 298 flow [2023-11-12 02:18:07,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:07,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:07,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:07,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:18:07,427 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:18:07,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:07,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1492695839, now seen corresponding path program 2 times [2023-11-12 02:18:07,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:07,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054402142] [2023-11-12 02:18:07,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:07,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:07,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:07,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:07,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054402142] [2023-11-12 02:18:07,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054402142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:07,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:07,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:18:07,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995921017] [2023-11-12 02:18:07,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:07,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:18:07,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:07,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:18:07,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:18:07,777 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 304 [2023-11-12 02:18:07,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 52 transitions, 298 flow. Second operand has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:07,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:07,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 304 [2023-11-12 02:18:07,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:08,637 INFO L124 PetriNetUnfolderBase]: 1909/3059 cut-off events. [2023-11-12 02:18:08,638 INFO L125 PetriNetUnfolderBase]: For 4454/4514 co-relation queries the response was YES. [2023-11-12 02:18:08,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9804 conditions, 3059 events. 1909/3059 cut-off events. For 4454/4514 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 16344 event pairs, 328 based on Foata normal form. 196/3133 useless extension candidates. Maximal degree in co-relation 9789. Up to 1001 conditions per place. [2023-11-12 02:18:08,674 INFO L140 encePairwiseOnDemand]: 297/304 looper letters, 78 selfloop transitions, 18 changer transitions 10/118 dead transitions. [2023-11-12 02:18:08,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 118 transitions, 802 flow [2023-11-12 02:18:08,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:18:08,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:18:08,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1016 transitions. [2023-11-12 02:18:08,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4774436090225564 [2023-11-12 02:18:08,681 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1016 transitions. [2023-11-12 02:18:08,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1016 transitions. [2023-11-12 02:18:08,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:08,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1016 transitions. [2023-11-12 02:18:08,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 145.14285714285714) internal successors, (1016), 7 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:08,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 304.0) internal successors, (2432), 8 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:08,694 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 304.0) internal successors, (2432), 8 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:08,694 INFO L175 Difference]: Start difference. First operand has 61 places, 52 transitions, 298 flow. Second operand 7 states and 1016 transitions. [2023-11-12 02:18:08,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 118 transitions, 802 flow [2023-11-12 02:18:08,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 118 transitions, 764 flow, removed 19 selfloop flow, removed 3 redundant places. [2023-11-12 02:18:08,714 INFO L231 Difference]: Finished difference. Result has 63 places, 60 transitions, 416 flow [2023-11-12 02:18:08,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=416, PETRI_PLACES=63, PETRI_TRANSITIONS=60} [2023-11-12 02:18:08,716 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 12 predicate places. [2023-11-12 02:18:08,716 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 60 transitions, 416 flow [2023-11-12 02:18:08,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:08,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:08,717 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] [2023-11-12 02:18:08,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:18:08,718 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:18:08,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:08,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1557201123, now seen corresponding path program 1 times [2023-11-12 02:18:08,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:08,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674720799] [2023-11-12 02:18:08,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:08,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:09,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:09,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674720799] [2023-11-12 02:18:09,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674720799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:09,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:09,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:18:09,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682616552] [2023-11-12 02:18:09,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:09,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:18:09,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:09,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:18:09,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:18:09,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 304 [2023-11-12 02:18:09,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 60 transitions, 416 flow. Second operand has 4 states, 4 states have (on average 139.25) internal successors, (557), 4 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:09,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:09,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 304 [2023-11-12 02:18:09,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:09,807 INFO L124 PetriNetUnfolderBase]: 2500/4132 cut-off events. [2023-11-12 02:18:09,807 INFO L125 PetriNetUnfolderBase]: For 8606/8625 co-relation queries the response was YES. [2023-11-12 02:18:09,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15225 conditions, 4132 events. 2500/4132 cut-off events. For 8606/8625 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 23832 event pairs, 502 based on Foata normal form. 20/4070 useless extension candidates. Maximal degree in co-relation 15209. Up to 2348 conditions per place. [2023-11-12 02:18:09,847 INFO L140 encePairwiseOnDemand]: 301/304 looper letters, 111 selfloop transitions, 4 changer transitions 5/129 dead transitions. [2023-11-12 02:18:09,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 129 transitions, 1166 flow [2023-11-12 02:18:09,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:18:09,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:18:09,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 595 transitions. [2023-11-12 02:18:09,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48930921052631576 [2023-11-12 02:18:09,853 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 595 transitions. [2023-11-12 02:18:09,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 595 transitions. [2023-11-12 02:18:09,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:09,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 595 transitions. [2023-11-12 02:18:09,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:09,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 304.0) internal successors, (1520), 5 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:09,862 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 304.0) internal successors, (1520), 5 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:09,862 INFO L175 Difference]: Start difference. First operand has 63 places, 60 transitions, 416 flow. Second operand 4 states and 595 transitions. [2023-11-12 02:18:09,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 129 transitions, 1166 flow [2023-11-12 02:18:10,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 129 transitions, 988 flow, removed 72 selfloop flow, removed 2 redundant places. [2023-11-12 02:18:10,007 INFO L231 Difference]: Finished difference. Result has 66 places, 61 transitions, 374 flow [2023-11-12 02:18:10,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=374, PETRI_PLACES=66, PETRI_TRANSITIONS=61} [2023-11-12 02:18:10,009 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 15 predicate places. [2023-11-12 02:18:10,009 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 61 transitions, 374 flow [2023-11-12 02:18:10,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 139.25) internal successors, (557), 4 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:10,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:10,010 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] [2023-11-12 02:18:10,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:18:10,011 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:18:10,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:10,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1151264249, now seen corresponding path program 2 times [2023-11-12 02:18:10,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:10,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619312932] [2023-11-12 02:18:10,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:10,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:10,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:10,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:10,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619312932] [2023-11-12 02:18:10,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619312932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:10,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:10,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:18:10,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266705508] [2023-11-12 02:18:10,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:10,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:18:10,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:10,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:18:10,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:18:10,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 304 [2023-11-12 02:18:10,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 61 transitions, 374 flow. Second operand has 7 states, 7 states have (on average 133.85714285714286) internal successors, (937), 7 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:10,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:10,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 304 [2023-11-12 02:18:10,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:11,299 INFO L124 PetriNetUnfolderBase]: 2384/3800 cut-off events. [2023-11-12 02:18:11,299 INFO L125 PetriNetUnfolderBase]: For 4475/4518 co-relation queries the response was YES. [2023-11-12 02:18:11,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12408 conditions, 3800 events. 2384/3800 cut-off events. For 4475/4518 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 21654 event pairs, 350 based on Foata normal form. 81/3730 useless extension candidates. Maximal degree in co-relation 12389. Up to 1242 conditions per place. [2023-11-12 02:18:11,324 INFO L140 encePairwiseOnDemand]: 297/304 looper letters, 69 selfloop transitions, 23 changer transitions 11/113 dead transitions. [2023-11-12 02:18:11,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 113 transitions, 760 flow [2023-11-12 02:18:11,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:18:11,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-12 02:18:11,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1279 transitions. [2023-11-12 02:18:11,331 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46747076023391815 [2023-11-12 02:18:11,331 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1279 transitions. [2023-11-12 02:18:11,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1279 transitions. [2023-11-12 02:18:11,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:11,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1279 transitions. [2023-11-12 02:18:11,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 142.11111111111111) internal successors, (1279), 9 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:11,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 304.0) internal successors, (3040), 10 states have internal predecessors, (3040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:11,346 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 304.0) internal successors, (3040), 10 states have internal predecessors, (3040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:11,346 INFO L175 Difference]: Start difference. First operand has 66 places, 61 transitions, 374 flow. Second operand 9 states and 1279 transitions. [2023-11-12 02:18:11,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 113 transitions, 760 flow [2023-11-12 02:18:11,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 113 transitions, 702 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-11-12 02:18:11,444 INFO L231 Difference]: Finished difference. Result has 73 places, 57 transitions, 369 flow [2023-11-12 02:18:11,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=369, PETRI_PLACES=73, PETRI_TRANSITIONS=57} [2023-11-12 02:18:11,445 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 22 predicate places. [2023-11-12 02:18:11,445 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 57 transitions, 369 flow [2023-11-12 02:18:11,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 133.85714285714286) internal successors, (937), 7 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:11,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:11,446 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, 1, 1] [2023-11-12 02:18:11,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:18:11,446 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:18:11,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:11,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1842197270, now seen corresponding path program 1 times [2023-11-12 02:18:11,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:11,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126404604] [2023-11-12 02:18:11,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:11,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:12,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:12,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:12,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126404604] [2023-11-12 02:18:12,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126404604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:12,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:12,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:18:12,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145367560] [2023-11-12 02:18:12,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:12,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:18:12,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:12,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:18:12,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:18:12,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 304 [2023-11-12 02:18:12,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 57 transitions, 369 flow. Second operand has 5 states, 5 states have (on average 130.2) internal successors, (651), 5 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:12,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:12,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 304 [2023-11-12 02:18:12,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:13,325 INFO L124 PetriNetUnfolderBase]: 4963/7930 cut-off events. [2023-11-12 02:18:13,325 INFO L125 PetriNetUnfolderBase]: For 18960/18960 co-relation queries the response was YES. [2023-11-12 02:18:13,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31323 conditions, 7930 events. 4963/7930 cut-off events. For 18960/18960 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 48861 event pairs, 619 based on Foata normal form. 1/7931 useless extension candidates. Maximal degree in co-relation 31303. Up to 3382 conditions per place. [2023-11-12 02:18:13,421 INFO L140 encePairwiseOnDemand]: 292/304 looper letters, 140 selfloop transitions, 30 changer transitions 29/200 dead transitions. [2023-11-12 02:18:13,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 200 transitions, 1785 flow [2023-11-12 02:18:13,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:18:13,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:18:13,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 978 transitions. [2023-11-12 02:18:13,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45958646616541354 [2023-11-12 02:18:13,426 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 978 transitions. [2023-11-12 02:18:13,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 978 transitions. [2023-11-12 02:18:13,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:13,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 978 transitions. [2023-11-12 02:18:13,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 139.71428571428572) internal successors, (978), 7 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:13,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 304.0) internal successors, (2432), 8 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:13,437 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 304.0) internal successors, (2432), 8 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:13,437 INFO L175 Difference]: Start difference. First operand has 73 places, 57 transitions, 369 flow. Second operand 7 states and 978 transitions. [2023-11-12 02:18:13,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 200 transitions, 1785 flow [2023-11-12 02:18:13,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 200 transitions, 1454 flow, removed 75 selfloop flow, removed 9 redundant places. [2023-11-12 02:18:13,739 INFO L231 Difference]: Finished difference. Result has 74 places, 72 transitions, 493 flow [2023-11-12 02:18:13,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=493, PETRI_PLACES=74, PETRI_TRANSITIONS=72} [2023-11-12 02:18:13,741 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 23 predicate places. [2023-11-12 02:18:13,741 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 72 transitions, 493 flow [2023-11-12 02:18:13,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.2) internal successors, (651), 5 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:13,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:13,742 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, 1, 1] [2023-11-12 02:18:13,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:18:13,742 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:18:13,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:13,743 INFO L85 PathProgramCache]: Analyzing trace with hash 508745270, now seen corresponding path program 2 times [2023-11-12 02:18:13,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:13,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258366623] [2023-11-12 02:18:13,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:13,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:14,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:14,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:14,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258366623] [2023-11-12 02:18:14,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258366623] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:14,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:14,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:18:14,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899670157] [2023-11-12 02:18:14,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:14,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:18:14,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:14,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:18:14,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:18:14,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 304 [2023-11-12 02:18:14,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 72 transitions, 493 flow. Second operand has 8 states, 8 states have (on average 128.25) internal successors, (1026), 8 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:14,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:14,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 304 [2023-11-12 02:18:14,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:15,918 INFO L124 PetriNetUnfolderBase]: 6563/10293 cut-off events. [2023-11-12 02:18:15,918 INFO L125 PetriNetUnfolderBase]: For 25633/25633 co-relation queries the response was YES. [2023-11-12 02:18:15,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41642 conditions, 10293 events. 6563/10293 cut-off events. For 25633/25633 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 64142 event pairs, 763 based on Foata normal form. 2/10295 useless extension candidates. Maximal degree in co-relation 41622. Up to 3231 conditions per place. [2023-11-12 02:18:15,988 INFO L140 encePairwiseOnDemand]: 293/304 looper letters, 196 selfloop transitions, 43 changer transitions 0/240 dead transitions. [2023-11-12 02:18:15,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 240 transitions, 2105 flow [2023-11-12 02:18:15,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:18:15,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-12 02:18:15,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1366 transitions. [2023-11-12 02:18:15,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4493421052631579 [2023-11-12 02:18:15,996 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1366 transitions. [2023-11-12 02:18:15,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1366 transitions. [2023-11-12 02:18:15,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:15,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1366 transitions. [2023-11-12 02:18:16,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 136.6) internal successors, (1366), 10 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:16,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 304.0) internal successors, (3344), 11 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:16,010 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 304.0) internal successors, (3344), 11 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:16,010 INFO L175 Difference]: Start difference. First operand has 74 places, 72 transitions, 493 flow. Second operand 10 states and 1366 transitions. [2023-11-12 02:18:16,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 240 transitions, 2105 flow [2023-11-12 02:18:16,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 240 transitions, 2059 flow, removed 23 selfloop flow, removed 2 redundant places. [2023-11-12 02:18:16,517 INFO L231 Difference]: Finished difference. Result has 84 places, 101 transitions, 866 flow [2023-11-12 02:18:16,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=866, PETRI_PLACES=84, PETRI_TRANSITIONS=101} [2023-11-12 02:18:16,517 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 33 predicate places. [2023-11-12 02:18:16,518 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 101 transitions, 866 flow [2023-11-12 02:18:16,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 128.25) internal successors, (1026), 8 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:16,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:16,518 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, 1, 1] [2023-11-12 02:18:16,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:18:16,519 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:18:16,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:16,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1469599904, now seen corresponding path program 3 times [2023-11-12 02:18:16,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:16,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593410221] [2023-11-12 02:18:16,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:16,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:17,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:17,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:17,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593410221] [2023-11-12 02:18:17,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593410221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:17,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:17,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:18:17,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526367631] [2023-11-12 02:18:17,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:17,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:18:17,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:17,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:18:17,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:18:17,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 304 [2023-11-12 02:18:17,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 101 transitions, 866 flow. Second operand has 7 states, 7 states have (on average 136.28571428571428) internal successors, (954), 7 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:17,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:17,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 304 [2023-11-12 02:18:17,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:19,553 INFO L124 PetriNetUnfolderBase]: 6020/10329 cut-off events. [2023-11-12 02:18:19,554 INFO L125 PetriNetUnfolderBase]: For 25735/26050 co-relation queries the response was YES. [2023-11-12 02:18:19,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41757 conditions, 10329 events. 6020/10329 cut-off events. For 25735/26050 co-relation queries the response was YES. Maximal size of possible extension queue 696. Compared 77124 event pairs, 852 based on Foata normal form. 162/10271 useless extension candidates. Maximal degree in co-relation 41732. Up to 2909 conditions per place. [2023-11-12 02:18:19,625 INFO L140 encePairwiseOnDemand]: 299/304 looper letters, 148 selfloop transitions, 17 changer transitions 0/193 dead transitions. [2023-11-12 02:18:19,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 193 transitions, 1747 flow [2023-11-12 02:18:19,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:18:19,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:18:19,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 872 transitions. [2023-11-12 02:18:19,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4780701754385965 [2023-11-12 02:18:19,629 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 872 transitions. [2023-11-12 02:18:19,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 872 transitions. [2023-11-12 02:18:19,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:19,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 872 transitions. [2023-11-12 02:18:19,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:19,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 304.0) internal successors, (2128), 7 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:19,637 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 304.0) internal successors, (2128), 7 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:19,638 INFO L175 Difference]: Start difference. First operand has 84 places, 101 transitions, 866 flow. Second operand 6 states and 872 transitions. [2023-11-12 02:18:19,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 193 transitions, 1747 flow [2023-11-12 02:18:20,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 193 transitions, 1747 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:18:20,272 INFO L231 Difference]: Finished difference. Result has 91 places, 104 transitions, 938 flow [2023-11-12 02:18:20,272 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=938, PETRI_PLACES=91, PETRI_TRANSITIONS=104} [2023-11-12 02:18:20,273 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 40 predicate places. [2023-11-12 02:18:20,273 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 104 transitions, 938 flow [2023-11-12 02:18:20,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 136.28571428571428) internal successors, (954), 7 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:20,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:20,274 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, 1, 1] [2023-11-12 02:18:20,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:18:20,275 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:18:20,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:20,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1573867038, now seen corresponding path program 4 times [2023-11-12 02:18:20,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:20,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254135458] [2023-11-12 02:18:20,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:20,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:18:20,341 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:18:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:18:20,452 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:18:20,452 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:18:20,454 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2023-11-12 02:18:20,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2023-11-12 02:18:20,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2023-11-12 02:18:20,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2023-11-12 02:18:20,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2023-11-12 02:18:20,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2023-11-12 02:18:20,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2023-11-12 02:18:20,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2023-11-12 02:18:20,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2023-11-12 02:18:20,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2023-11-12 02:18:20,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2023-11-12 02:18:20,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2023-11-12 02:18:20,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2023-11-12 02:18:20,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2023-11-12 02:18:20,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2023-11-12 02:18:20,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2023-11-12 02:18:20,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-12 02:18:20,461 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:20,469 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:18:20,470 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:18:20,558 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-12 02:18:20,562 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-12 02:18:20,563 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-12 02:18:20,565 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-12 02:18:20,583 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-11-12 02:18:20,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:18:20 BasicIcfg [2023-11-12 02:18:20,600 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:18:20,601 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:18:20,601 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:18:20,602 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:18:20,602 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:47" (3/4) ... [2023-11-12 02:18:20,605 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:18:20,606 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:18:20,607 INFO L158 Benchmark]: Toolchain (without parser) took 35431.50ms. Allocated memory was 136.3MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 103.6MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 467.1MB. Max. memory is 16.1GB. [2023-11-12 02:18:20,608 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 136.3MB. Free memory was 95.8MB in the beginning and 95.7MB in the end (delta: 139.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:18:20,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 669.51ms. Allocated memory is still 136.3MB. Free memory was 103.4MB in the beginning and 80.0MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-12 02:18:20,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.39ms. Allocated memory is still 136.3MB. Free memory was 79.8MB in the beginning and 77.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:18:20,610 INFO L158 Benchmark]: Boogie Preprocessor took 99.90ms. Allocated memory is still 136.3MB. Free memory was 77.4MB in the beginning and 75.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:18:20,611 INFO L158 Benchmark]: RCFGBuilder took 1011.38ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 75.3MB in the beginning and 107.5MB in the end (delta: -32.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 02:18:20,611 INFO L158 Benchmark]: TraceAbstraction took 33567.37ms. Allocated memory was 163.6MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 106.2MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 439.9MB. Max. memory is 16.1GB. [2023-11-12 02:18:20,612 INFO L158 Benchmark]: Witness Printer took 5.60ms. Allocated memory is still 2.0GB. Free memory is still 1.5GB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:18:20,615 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 136.3MB. Free memory was 95.8MB in the beginning and 95.7MB in the end (delta: 139.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 669.51ms. Allocated memory is still 136.3MB. Free memory was 103.4MB in the beginning and 80.0MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.39ms. Allocated memory is still 136.3MB. Free memory was 79.8MB in the beginning and 77.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.90ms. Allocated memory is still 136.3MB. Free memory was 77.4MB in the beginning and 75.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1011.38ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 75.3MB in the beginning and 107.5MB in the end (delta: -32.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 33567.37ms. Allocated memory was 163.6MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 106.2MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 439.9MB. Max. memory is 16.1GB. * Witness Printer took 5.60ms. Allocated memory is still 2.0GB. 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: 6.5s, 158 PlacesBefore, 51 PlacesAfterwards, 148 TransitionsBefore, 39 TransitionsAfterwards, 3802 CoEnabledTransitionPairs, 7 FixpointIterations, 55 TrivialSequentialCompositions, 84 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 152 TotalNumberOfCompositions, 9403 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4342, independent: 4122, independent conditional: 0, independent unconditional: 4122, dependent: 220, dependent conditional: 0, dependent unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2026, independent: 1980, independent conditional: 0, independent unconditional: 1980, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4342, independent: 2142, independent conditional: 0, independent unconditional: 2142, dependent: 174, dependent conditional: 0, dependent unconditional: 174, unknown: 2026, unknown conditional: 0, unknown unconditional: 2026] , Statistics on independence cache: Total cache size (in pairs): 174, Positive cache size: 157, Positive conditional cache size: 0, Positive unconditional cache size: 157, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, 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_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p2_EAX = 0; [L718] 0 int __unbuffered_p3_EAX = 0; [L720] 0 int __unbuffered_p3_EBX = 0; [L722] 0 int a = 0; [L724] 0 int b = 0; [L725] 0 _Bool main$tmp_guard0; [L726] 0 _Bool main$tmp_guard1; [L728] 0 int x = 0; [L730] 0 int y = 0; [L731] 0 _Bool y$flush_delayed; [L732] 0 int y$mem_tmp; [L733] 0 _Bool y$r_buff0_thd0; [L734] 0 _Bool y$r_buff0_thd1; [L735] 0 _Bool y$r_buff0_thd2; [L736] 0 _Bool y$r_buff0_thd3; [L737] 0 _Bool y$r_buff0_thd4; [L738] 0 _Bool y$r_buff1_thd0; [L739] 0 _Bool y$r_buff1_thd1; [L740] 0 _Bool y$r_buff1_thd2; [L741] 0 _Bool y$r_buff1_thd3; [L742] 0 _Bool y$r_buff1_thd4; [L743] 0 _Bool y$read_delayed; [L744] 0 int *y$read_delayed_var; [L745] 0 int y$w_buff0; [L746] 0 _Bool y$w_buff0_used; [L747] 0 int y$w_buff1; [L748] 0 _Bool y$w_buff1_used; [L750] 0 int z = 0; [L751] 0 _Bool weak$$choice0; [L752] 0 _Bool weak$$choice2; [L863] 0 pthread_t t941; [L864] FCALL, FORK 0 pthread_create(&t941, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t941={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L865] 0 pthread_t t942; [L866] FCALL, FORK 0 pthread_create(&t942, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t941={5:0}, t942={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L867] 0 pthread_t t943; [L868] FCALL, FORK 0 pthread_create(&t943, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t941={5:0}, t942={6:0}, t943={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L869] 0 pthread_t t944; [L870] FCALL, FORK 0 pthread_create(&t944, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t941={5:0}, t942={6:0}, t943={7:0}, t944={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L799] 3 y$w_buff1 = y$w_buff0 [L800] 3 y$w_buff0 = 1 [L801] 3 y$w_buff1_used = y$w_buff0_used [L802] 3 y$w_buff0_used = (_Bool)1 [L803] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L803] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L804] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L805] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L806] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L807] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L808] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L809] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L812] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L829] 4 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L832] 4 a = 1 [L835] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L838] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L756] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L759] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L771] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L766] 1 return 0; [L774] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L775] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L776] 2 y$flush_delayed = weak$$choice2 [L777] 2 y$mem_tmp = y [L778] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L779] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L780] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L781] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L782] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L783] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L784] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L785] 2 __unbuffered_p1_EAX = y [L786] 2 y = y$flush_delayed ? y$mem_tmp : y [L787] 2 y$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L815] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L816] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L817] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L818] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L819] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=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}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L792] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L794] 2 return 0; [L841] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L842] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L843] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L844] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L845] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L822] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L824] 3 return 0; [L848] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L850] 4 return 0; [L872] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L874] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L874] RET 0 assume_abort_if_not(main$tmp_guard0) [L876] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L877] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L878] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L879] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L880] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t941={5:0}, t942={6:0}, t943={7:0}, t944={3:0}, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L883] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L885] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) [L17] 0 __assert_fail ("0", "mix036_power.opt_rmo.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, 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: 861]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 866]: 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: 868]: 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: 864]: 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: 870]: 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, 187 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: 33.3s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 20.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 903 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 755 mSDsluCounter, 325 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 264 mSDsCounter, 86 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2581 IncrementalHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 86 mSolverCounterUnsat, 61 mSDtfsCounter, 2581 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=938occurred in iteration=13, InterpolantAutomatonStates: 76, 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, 5.0s InterpolantComputationTime, 246 NumberOfCodeBlocks, 246 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 1918 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 [2023-11-12 02:18:20,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl --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 f5d83fc7ee9b26859e9993ee2fcff801f4a9d92dea17a48a6a39594bb6b759ca --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:18:23,429 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:18:23,550 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-12 02:18:23,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:18:23,559 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:18:23,619 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:18:23,623 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:18:23,624 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:18:23,625 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:18:23,627 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:18:23,628 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:18:23,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:18:23,630 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:18:23,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:18:23,636 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:18:23,636 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:18:23,638 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:18:23,639 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:18:23,639 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:18:23,640 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:18:23,640 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:18:23,641 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:18:23,642 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:18:23,642 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:18:23,643 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:18:23,643 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:18:23,644 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:18:23,644 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:18:23,645 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:18:23,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:18:23,648 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:18:23,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:18:23,648 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:18:23,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:18:23,649 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:18:23,650 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:18:23,650 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:18:23,650 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:18:23,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:18:23,652 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:18:23,652 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:18:23,653 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_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5d83fc7ee9b26859e9993ee2fcff801f4a9d92dea17a48a6a39594bb6b759ca [2023-11-12 02:18:24,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:18:24,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:18:24,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:18:24,073 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:18:24,074 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:18:24,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i [2023-11-12 02:18:27,343 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:18:27,729 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:18:27,730 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i [2023-11-12 02:18:27,752 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/data/c765b8ca2/b310a0db0e804162893b7398fd0f8df8/FLAG2384e8c0d [2023-11-12 02:18:27,771 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/data/c765b8ca2/b310a0db0e804162893b7398fd0f8df8 [2023-11-12 02:18:27,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:18:27,776 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:18:27,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:18:27,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:18:27,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:18:27,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:18:27" (1/1) ... [2023-11-12 02:18:27,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ba3461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:27, skipping insertion in model container [2023-11-12 02:18:27,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:18:27" (1/1) ... [2023-11-12 02:18:27,850 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:18:28,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:18:28,422 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:18:28,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:18:28,640 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:18:28,641 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:18:28,649 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:18:28,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:28 WrapperNode [2023-11-12 02:18:28,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:18:28,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:18:28,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:18:28,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:18:28,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:28" (1/1) ... [2023-11-12 02:18:28,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:28" (1/1) ... [2023-11-12 02:18:28,726 INFO L138 Inliner]: procedures = 180, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 153 [2023-11-12 02:18:28,726 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:18:28,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:18:28,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:18:28,728 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:18:28,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:28" (1/1) ... [2023-11-12 02:18:28,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:28" (1/1) ... [2023-11-12 02:18:28,764 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:28" (1/1) ... [2023-11-12 02:18:28,764 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:28" (1/1) ... [2023-11-12 02:18:28,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:28" (1/1) ... [2023-11-12 02:18:28,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:28" (1/1) ... [2023-11-12 02:18:28,816 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:28" (1/1) ... [2023-11-12 02:18:28,831 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:28" (1/1) ... [2023-11-12 02:18:28,837 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:18:28,838 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:18:28,839 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:18:28,839 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:18:28,840 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:28" (1/1) ... [2023-11-12 02:18:28,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:18:28,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:28,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:18:28,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21360f2-d76a-4ad3-9209-e1be58c764c5/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:18:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:18:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:18:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:18:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:18:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:18:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:18:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:18:28,952 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:18:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:18:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:18:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 02:18:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 02:18:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 02:18:28,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 02:18:28,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:18:28,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:18:28,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:18:28,958 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:18:29,160 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:18:29,162 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation