./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix016.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix016.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 19a854e56177f3540c5827f949efdd83ec94b87c6cd0ec772115563b836c4c8b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:40:04,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:40:04,714 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:40:04,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:40:04,723 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:40:04,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:40:04,813 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:40:04,814 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:40:04,815 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:40:04,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:40:04,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:40:04,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:40:04,824 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:40:04,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:40:04,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:40:04,841 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:40:04,842 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:40:04,842 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:40:04,843 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:40:04,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:40:04,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:40:04,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:40:04,845 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:40:04,847 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:40:04,848 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:40:04,849 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:40:04,849 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:40:04,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:40:04,851 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:40:04,852 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:40:04,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:04,854 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:40:04,854 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:40:04,855 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:40:04,855 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:40:04,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:40:04,856 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:40:04,856 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:40:04,856 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:40:04,857 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:40:04,857 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:40:04,858 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_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19a854e56177f3540c5827f949efdd83ec94b87c6cd0ec772115563b836c4c8b [2023-11-19 07:40:05,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:40:05,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:40:05,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:40:05,313 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:40:05,314 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:40:05,316 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix016.oepc.i [2023-11-19 07:40:08,845 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:40:09,261 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:40:09,262 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/sv-benchmarks/c/pthread-wmm/mix016.oepc.i [2023-11-19 07:40:09,299 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/data/0ab38aa24/cc6f86e1323a467590c7baff1476bd0b/FLAGe6b64585d [2023-11-19 07:40:09,323 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/data/0ab38aa24/cc6f86e1323a467590c7baff1476bd0b [2023-11-19 07:40:09,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:40:09,333 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:40:09,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:09,337 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:40:09,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:40:09,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:09" (1/1) ... [2023-11-19 07:40:09,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5875796a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:09, skipping insertion in model container [2023-11-19 07:40:09,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:09" (1/1) ... [2023-11-19 07:40:09,457 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:40:10,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:10,072 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:40:10,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:10,225 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:40:10,226 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:40:10,236 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:40:10,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10 WrapperNode [2023-11-19 07:40:10,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:10,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:10,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:40:10,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:40:10,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,298 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,330 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 137 [2023-11-19 07:40:10,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:10,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:40:10,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:40:10,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:40:10,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,349 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,350 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,361 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,363 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,367 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:40:10,376 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:40:10,376 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:40:10,377 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:40:10,378 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (1/1) ... [2023-11-19 07:40:10,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:10,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:10,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:10,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:40:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:40:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:40:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:40:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:40:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:40:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:40:10,539 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:40:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:40:10,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:40:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:40:10,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:40:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:40:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:40:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:40:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:40:10,545 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:40:10,757 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:40:10,760 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:40:11,176 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:40:11,390 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:40:11,390 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:40:11,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:11 BoogieIcfgContainer [2023-11-19 07:40:11,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:40:11,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:40:11,398 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:40:11,402 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:40:11,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:40:09" (1/3) ... [2023-11-19 07:40:11,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188c0376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:11, skipping insertion in model container [2023-11-19 07:40:11,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:10" (2/3) ... [2023-11-19 07:40:11,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188c0376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:11, skipping insertion in model container [2023-11-19 07:40:11,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:11" (3/3) ... [2023-11-19 07:40:11,406 INFO L112 eAbstractionObserver]: Analyzing ICFG mix016.oepc.i [2023-11-19 07:40:11,416 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:40:11,429 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:40:11,429 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:40:11,429 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:40:11,513 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:40:11,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 123 transitions, 258 flow [2023-11-19 07:40:11,635 INFO L124 PetriNetUnfolderBase]: 3/120 cut-off events. [2023-11-19 07:40:11,638 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:40:11,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 120 events. 3/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-11-19 07:40:11,645 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 123 transitions, 258 flow [2023-11-19 07:40:11,653 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 120 transitions, 249 flow [2023-11-19 07:40:11,657 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:40:11,669 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 120 transitions, 249 flow [2023-11-19 07:40:11,673 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 120 transitions, 249 flow [2023-11-19 07:40:11,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 120 transitions, 249 flow [2023-11-19 07:40:11,716 INFO L124 PetriNetUnfolderBase]: 3/120 cut-off events. [2023-11-19 07:40:11,717 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:40:11,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 120 events. 3/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-11-19 07:40:11,722 INFO L119 LiptonReduction]: Number of co-enabled transitions 2972 [2023-11-19 07:40:16,426 INFO L134 LiptonReduction]: Checked pairs total: 10624 [2023-11-19 07:40:16,427 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-11-19 07:40:16,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:40:16,450 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@323b2305, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:40:16,451 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-19 07:40:16,456 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:40:16,456 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-19 07:40:16,456 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:40:16,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:16,457 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:40:16,458 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:40:16,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:16,463 INFO L85 PathProgramCache]: Analyzing trace with hash -473985983, now seen corresponding path program 1 times [2023-11-19 07:40:16,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:16,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902358307] [2023-11-19 07:40:16,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:16,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:16,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:16,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:16,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902358307] [2023-11-19 07:40:16,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902358307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:16,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:16,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:40:16,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186325123] [2023-11-19 07:40:16,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:16,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:16,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:16,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:16,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:16,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 226 [2023-11-19 07:40:16,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:16,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:16,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 226 [2023-11-19 07:40:16,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:17,501 INFO L124 PetriNetUnfolderBase]: 1257/2004 cut-off events. [2023-11-19 07:40:17,501 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-19 07:40:17,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4049 conditions, 2004 events. 1257/2004 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 10084 event pairs, 533 based on Foata normal form. 138/1598 useless extension candidates. Maximal degree in co-relation 4038. Up to 1751 conditions per place. [2023-11-19 07:40:17,529 INFO L140 encePairwiseOnDemand]: 214/226 looper letters, 38 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2023-11-19 07:40:17,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 45 transitions, 189 flow [2023-11-19 07:40:17,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:17,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:40:17,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2023-11-19 07:40:17,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5176991150442478 [2023-11-19 07:40:17,553 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2023-11-19 07:40:17,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2023-11-19 07:40:17,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:17,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2023-11-19 07:40:17,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:17,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:17,577 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:17,579 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 71 flow. Second operand 3 states and 351 transitions. [2023-11-19 07:40:17,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 45 transitions, 189 flow [2023-11-19 07:40:17,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 45 transitions, 184 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:40:17,588 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 104 flow [2023-11-19 07:40:17,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2023-11-19 07:40:17,596 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2023-11-19 07:40:17,596 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 104 flow [2023-11-19 07:40:17,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:17,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:17,597 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:17,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:40:17,598 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:40:17,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:17,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1899527366, now seen corresponding path program 1 times [2023-11-19 07:40:17,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:17,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929069546] [2023-11-19 07:40:17,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:17,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:17,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:17,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:17,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929069546] [2023-11-19 07:40:17,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929069546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:17,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:17,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:17,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216249986] [2023-11-19 07:40:17,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:17,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:17,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:17,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:17,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:17,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 226 [2023-11-19 07:40:17,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:17,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:17,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 226 [2023-11-19 07:40:17,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:18,173 INFO L124 PetriNetUnfolderBase]: 919/1470 cut-off events. [2023-11-19 07:40:18,174 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2023-11-19 07:40:18,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3563 conditions, 1470 events. 919/1470 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7040 event pairs, 333 based on Foata normal form. 0/1278 useless extension candidates. Maximal degree in co-relation 3552. Up to 1216 conditions per place. [2023-11-19 07:40:18,191 INFO L140 encePairwiseOnDemand]: 219/226 looper letters, 35 selfloop transitions, 4 changer transitions 0/42 dead transitions. [2023-11-19 07:40:18,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 42 transitions, 198 flow [2023-11-19 07:40:18,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:40:18,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:40:18,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 442 transitions. [2023-11-19 07:40:18,195 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4889380530973451 [2023-11-19 07:40:18,195 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 442 transitions. [2023-11-19 07:40:18,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 442 transitions. [2023-11-19 07:40:18,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:18,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 442 transitions. [2023-11-19 07:40:18,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:18,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:18,203 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:18,204 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 104 flow. Second operand 4 states and 442 transitions. [2023-11-19 07:40:18,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 42 transitions, 198 flow [2023-11-19 07:40:18,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:40:18,206 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 96 flow [2023-11-19 07:40:18,207 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2023-11-19 07:40:18,208 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2023-11-19 07:40:18,208 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 96 flow [2023-11-19 07:40:18,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:18,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:18,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:18,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:40:18,210 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:40:18,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:18,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1899527367, now seen corresponding path program 1 times [2023-11-19 07:40:18,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:18,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201530197] [2023-11-19 07:40:18,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:18,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:18,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:18,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:18,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201530197] [2023-11-19 07:40:18,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201530197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:18,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:18,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:18,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335642521] [2023-11-19 07:40:18,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:18,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:18,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:18,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:18,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:18,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 226 [2023-11-19 07:40:18,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:18,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:18,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 226 [2023-11-19 07:40:18,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:18,614 INFO L124 PetriNetUnfolderBase]: 398/675 cut-off events. [2023-11-19 07:40:18,614 INFO L125 PetriNetUnfolderBase]: For 203/203 co-relation queries the response was YES. [2023-11-19 07:40:18,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1638 conditions, 675 events. 398/675 cut-off events. For 203/203 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2857 event pairs, 159 based on Foata normal form. 33/676 useless extension candidates. Maximal degree in co-relation 1626. Up to 240 conditions per place. [2023-11-19 07:40:18,622 INFO L140 encePairwiseOnDemand]: 218/226 looper letters, 42 selfloop transitions, 7 changer transitions 3/55 dead transitions. [2023-11-19 07:40:18,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 55 transitions, 262 flow [2023-11-19 07:40:18,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:40:18,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:40:18,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2023-11-19 07:40:18,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.504424778761062 [2023-11-19 07:40:18,627 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 456 transitions. [2023-11-19 07:40:18,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 456 transitions. [2023-11-19 07:40:18,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:18,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 456 transitions. [2023-11-19 07:40:18,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:18,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:18,635 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:18,636 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 96 flow. Second operand 4 states and 456 transitions. [2023-11-19 07:40:18,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 55 transitions, 262 flow [2023-11-19 07:40:18,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 55 transitions, 257 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:40:18,640 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 119 flow [2023-11-19 07:40:18,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2023-11-19 07:40:18,641 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2023-11-19 07:40:18,642 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 119 flow [2023-11-19 07:40:18,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:18,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:18,643 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:18,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:40:18,644 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:40:18,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:18,645 INFO L85 PathProgramCache]: Analyzing trace with hash -781175852, now seen corresponding path program 1 times [2023-11-19 07:40:18,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:18,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185587417] [2023-11-19 07:40:18,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:18,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:18,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:18,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:18,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185587417] [2023-11-19 07:40:18,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185587417] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:18,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:18,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:18,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657175245] [2023-11-19 07:40:18,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:18,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:40:18,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:18,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:40:18,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:40:18,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 226 [2023-11-19 07:40:18,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 103.2) internal successors, (516), 5 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:18,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:18,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 226 [2023-11-19 07:40:18,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:19,110 INFO L124 PetriNetUnfolderBase]: 338/551 cut-off events. [2023-11-19 07:40:19,111 INFO L125 PetriNetUnfolderBase]: For 411/411 co-relation queries the response was YES. [2023-11-19 07:40:19,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 551 events. 338/551 cut-off events. For 411/411 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2293 event pairs, 143 based on Foata normal form. 16/553 useless extension candidates. Maximal degree in co-relation 1496. Up to 240 conditions per place. [2023-11-19 07:40:19,114 INFO L140 encePairwiseOnDemand]: 218/226 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2023-11-19 07:40:19,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 45 transitions, 223 flow [2023-11-19 07:40:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:40:19,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:40:19,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 546 transitions. [2023-11-19 07:40:19,118 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4831858407079646 [2023-11-19 07:40:19,118 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 546 transitions. [2023-11-19 07:40:19,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 546 transitions. [2023-11-19 07:40:19,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:19,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 546 transitions. [2023-11-19 07:40:19,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:19,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 226.0) internal successors, (1356), 6 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:19,126 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 226.0) internal successors, (1356), 6 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:19,126 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 119 flow. Second operand 5 states and 546 transitions. [2023-11-19 07:40:19,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 45 transitions, 223 flow [2023-11-19 07:40:19,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 45 transitions, 199 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-19 07:40:19,133 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2023-11-19 07:40:19,133 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2023-11-19 07:40:19,134 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -6 predicate places. [2023-11-19 07:40:19,134 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2023-11-19 07:40:19,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.2) internal successors, (516), 5 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:19,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-19 07:40:19,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-19 07:40:19,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-19 07:40:19,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-19 07:40:19,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-19 07:40:19,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-19 07:40:19,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-19 07:40:19,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-19 07:40:19,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-19 07:40:19,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-19 07:40:19,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-19 07:40:19,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-19 07:40:19,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-19 07:40:19,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-19 07:40:19,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-19 07:40:19,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:40:19,142 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 07:40:19,148 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:40:19,148 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:40:19,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:40:19 BasicIcfg [2023-11-19 07:40:19,153 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:40:19,154 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:40:19,154 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:40:19,154 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:40:19,155 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:11" (3/4) ... [2023-11-19 07:40:19,157 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:40:19,160 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:40:19,160 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:40:19,161 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 07:40:19,167 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-19 07:40:19,167 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 07:40:19,168 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:40:19,168 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:40:19,287 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:40:19,288 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:40:19,288 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:40:19,289 INFO L158 Benchmark]: Toolchain (without parser) took 9956.40ms. Allocated memory was 138.4MB in the beginning and 268.4MB in the end (delta: 130.0MB). Free memory was 89.8MB in the beginning and 132.1MB in the end (delta: -42.3MB). Peak memory consumption was 88.6MB. Max. memory is 16.1GB. [2023-11-19 07:40:19,289 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 94.4MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:40:19,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 900.69ms. Allocated memory is still 138.4MB. Free memory was 89.8MB in the beginning and 66.3MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:40:19,290 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.53ms. Allocated memory is still 138.4MB. Free memory was 66.3MB in the beginning and 63.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:40:19,290 INFO L158 Benchmark]: Boogie Preprocessor took 43.43ms. Allocated memory is still 138.4MB. Free memory was 63.8MB in the beginning and 61.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:40:19,291 INFO L158 Benchmark]: RCFGBuilder took 1018.78ms. Allocated memory was 138.4MB in the beginning and 222.3MB in the end (delta: 83.9MB). Free memory was 61.7MB in the beginning and 160.1MB in the end (delta: -98.4MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2023-11-19 07:40:19,291 INFO L158 Benchmark]: TraceAbstraction took 7755.20ms. Allocated memory was 222.3MB in the beginning and 268.4MB in the end (delta: 46.1MB). Free memory was 160.1MB in the beginning and 137.3MB in the end (delta: 22.7MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. [2023-11-19 07:40:19,292 INFO L158 Benchmark]: Witness Printer took 134.28ms. Allocated memory is still 268.4MB. Free memory was 137.3MB in the beginning and 132.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:40:19,294 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 94.4MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 900.69ms. Allocated memory is still 138.4MB. Free memory was 89.8MB in the beginning and 66.3MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.53ms. Allocated memory is still 138.4MB. Free memory was 66.3MB in the beginning and 63.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.43ms. Allocated memory is still 138.4MB. Free memory was 63.8MB in the beginning and 61.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1018.78ms. Allocated memory was 138.4MB in the beginning and 222.3MB in the end (delta: 83.9MB). Free memory was 61.7MB in the beginning and 160.1MB in the end (delta: -98.4MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * TraceAbstraction took 7755.20ms. Allocated memory was 222.3MB in the beginning and 268.4MB in the end (delta: 46.1MB). Free memory was 160.1MB in the beginning and 137.3MB in the end (delta: 22.7MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. * Witness Printer took 134.28ms. Allocated memory is still 268.4MB. Free memory was 137.3MB in the beginning and 132.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.8s, 127 PlacesBefore, 40 PlacesAfterwards, 120 TransitionsBefore, 31 TransitionsAfterwards, 2972 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 103 TotalNumberOfCompositions, 10624 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4131, independent: 3834, independent conditional: 0, independent unconditional: 3834, dependent: 297, dependent conditional: 0, dependent unconditional: 297, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1602, independent: 1558, independent conditional: 0, independent unconditional: 1558, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4131, independent: 2276, independent conditional: 0, independent unconditional: 2276, dependent: 253, dependent conditional: 0, dependent unconditional: 253, unknown: 1602, unknown conditional: 0, unknown unconditional: 1602] , Statistics on independence cache: Total cache size (in pairs): 194, Positive cache size: 169, Positive conditional cache size: 0, Positive unconditional cache size: 169, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 769]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 769]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 825]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 825]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 155 locations, 15 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: 7.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 90 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 251 IncrementalHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 2 mSDtfsCounter, 251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:40:19,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb85016b-b069-4249-bfbe-45487e83a31e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE