./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.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_ec766937-3897-47ab-8366-aa6932c50e0c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec766937-3897-47ab-8366-aa6932c50e0c/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_ec766937-3897-47ab-8366-aa6932c50e0c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec766937-3897-47ab-8366-aa6932c50e0c/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec766937-3897-47ab-8366-aa6932c50e0c/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_ec766937-3897-47ab-8366-aa6932c50e0c/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 8e0bd33ffca0122f84e298c52bb9fdae01e72661c94f68aaa49ed0f187d88b87 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:05:04,923 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:05:05,025 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec766937-3897-47ab-8366-aa6932c50e0c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 08:05:05,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:05:05,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:05:05,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:05:05,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:05:05,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:05:05,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:05:05,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:05:05,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:05:05,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:05:05,062 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:05:05,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:05:05,063 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:05:05,064 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:05:05,064 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:05:05,065 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:05:05,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:05:05,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:05:05,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:05:05,067 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:05:05,068 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 08:05:05,068 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:05:05,069 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:05:05,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:05:05,069 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:05:05,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:05:05,071 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:05:05,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:05:05,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:05,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:05:05,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:05:05,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:05:05,073 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:05:05,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:05:05,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:05:05,074 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:05:05,074 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:05:05,075 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:05:05,075 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:05:05,076 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_ec766937-3897-47ab-8366-aa6932c50e0c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec766937-3897-47ab-8366-aa6932c50e0c/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e0bd33ffca0122f84e298c52bb9fdae01e72661c94f68aaa49ed0f187d88b87 [2023-11-19 08:05:05,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:05:05,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:05:05,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:05:05,394 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:05:05,395 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:05:05,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec766937-3897-47ab-8366-aa6932c50e0c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-19 08:05:08,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:05:08,959 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:05:08,960 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec766937-3897-47ab-8366-aa6932c50e0c/sv-benchmarks/c/pthread-wmm/safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-19 08:05:08,981 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec766937-3897-47ab-8366-aa6932c50e0c/bin/uautomizer-verify-uCwYo4JHxu/data/aab5096f7/66e6fb59a83c48c4b8a20c437b439a62/FLAG056fcf785 [2023-11-19 08:05:09,000 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec766937-3897-47ab-8366-aa6932c50e0c/bin/uautomizer-verify-uCwYo4JHxu/data/aab5096f7/66e6fb59a83c48c4b8a20c437b439a62 [2023-11-19 08:05:09,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:05:09,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:05:09,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:09,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:05:09,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:05:09,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:09" (1/1) ... [2023-11-19 08:05:09,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651f200b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:09, skipping insertion in model container [2023-11-19 08:05:09,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:09" (1/1) ... [2023-11-19 08:05:09,101 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:05:09,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:09,537 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:05:09,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:09,721 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:05:09,722 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:05:09,730 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:05:09,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:09 WrapperNode [2023-11-19 08:05:09,731 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:09,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:09,733 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:05:09,733 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:05:09,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:09" (1/1) ... [2023-11-19 08:05:09,786 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:09" (1/1) ... [2023-11-19 08:05:09,834 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 151 [2023-11-19 08:05:09,836 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:09,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:05:09,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:05:09,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:05:09,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:09" (1/1) ... [2023-11-19 08:05:09,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:09" (1/1) ... [2023-11-19 08:05:09,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:09" (1/1) ... [2023-11-19 08:05:09,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:09" (1/1) ... [2023-11-19 08:05:09,886 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:09" (1/1) ... [2023-11-19 08:05:09,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:09" (1/1) ... [2023-11-19 08:05:09,899 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:09" (1/1) ... [2023-11-19 08:05:09,901 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:09" (1/1) ... [2023-11-19 08:05:09,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:05:09,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:05:09,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:05:09,909 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:05:09,913 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:09" (1/1) ... [2023-11-19 08:05:09,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:09,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec766937-3897-47ab-8366-aa6932c50e0c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:09,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec766937-3897-47ab-8366-aa6932c50e0c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:05:10,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec766937-3897-47ab-8366-aa6932c50e0c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:05:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:05:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 08:05:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:05:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:05:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:05:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 08:05:10,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 08:05:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 08:05:10,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 08:05:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 08:05:10,050 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 08:05:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:05:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 08:05:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:05:10,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:05:10,054 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 08:05:10,246 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:05:10,249 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:05:10,759 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:05:11,016 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:05:11,017 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:05:11,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:11 BoogieIcfgContainer [2023-11-19 08:05:11,025 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:05:11,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:05:11,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:05:11,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:05:11,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:05:09" (1/3) ... [2023-11-19 08:05:11,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4966ab14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:11, skipping insertion in model container [2023-11-19 08:05:11,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:09" (2/3) ... [2023-11-19 08:05:11,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4966ab14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:11, skipping insertion in model container [2023-11-19 08:05:11,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:11" (3/3) ... [2023-11-19 08:05:11,039 INFO L112 eAbstractionObserver]: Analyzing ICFG safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-19 08:05:11,050 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:05:11,062 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:05:11,063 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 08:05:11,063 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:05:11,165 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 08:05:11,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 121 transitions, 254 flow [2023-11-19 08:05:11,312 INFO L124 PetriNetUnfolderBase]: 3/118 cut-off events. [2023-11-19 08:05:11,312 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:05:11,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 118 events. 3/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-19 08:05:11,319 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 121 transitions, 254 flow [2023-11-19 08:05:11,326 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 118 transitions, 245 flow [2023-11-19 08:05:11,331 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:05:11,344 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 118 transitions, 245 flow [2023-11-19 08:05:11,347 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 118 transitions, 245 flow [2023-11-19 08:05:11,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 118 transitions, 245 flow [2023-11-19 08:05:11,379 INFO L124 PetriNetUnfolderBase]: 3/118 cut-off events. [2023-11-19 08:05:11,379 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:05:11,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 118 events. 3/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-19 08:05:11,383 INFO L119 LiptonReduction]: Number of co-enabled transitions 3126 [2023-11-19 08:05:16,416 INFO L134 LiptonReduction]: Checked pairs total: 9729 [2023-11-19 08:05:16,416 INFO L136 LiptonReduction]: Total number of compositions: 105 [2023-11-19 08:05:16,433 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:05:16,442 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;@b76602f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:05:16,442 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-19 08:05:16,447 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:05:16,448 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 08:05:16,448 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:05:16,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:05:16,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:05:16,450 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 08:05:16,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:16,457 INFO L85 PathProgramCache]: Analyzing trace with hash 600876052, now seen corresponding path program 1 times [2023-11-19 08:05:16,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:16,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503306935] [2023-11-19 08:05:16,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:16,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:16,927 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 08:05:16,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:16,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503306935] [2023-11-19 08:05:16,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503306935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:16,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:16,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:05:16,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716073560] [2023-11-19 08:05:16,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:16,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:05:16,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:16,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:05:16,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:05:16,995 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 226 [2023-11-19 08:05:16,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 08:05:17,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:05:17,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 226 [2023-11-19 08:05:17,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:05:17,686 INFO L124 PetriNetUnfolderBase]: 1445/2287 cut-off events. [2023-11-19 08:05:17,687 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-11-19 08:05:17,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4636 conditions, 2287 events. 1445/2287 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 11094 event pairs, 606 based on Foata normal form. 158/1868 useless extension candidates. Maximal degree in co-relation 4625. Up to 1956 conditions per place. [2023-11-19 08:05:17,716 INFO L140 encePairwiseOnDemand]: 214/226 looper letters, 40 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2023-11-19 08:05:17,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 193 flow [2023-11-19 08:05:17,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:05:17,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:05:17,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2023-11-19 08:05:17,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5029498525073747 [2023-11-19 08:05:17,740 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 341 transitions. [2023-11-19 08:05:17,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 341 transitions. [2023-11-19 08:05:17,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:05:17,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 341 transitions. [2023-11-19 08:05:17,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 08:05:17,762 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 08:05:17,763 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 08:05:17,765 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 69 flow. Second operand 3 states and 341 transitions. [2023-11-19 08:05:17,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 193 flow [2023-11-19 08:05:17,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 45 transitions, 188 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 08:05:17,774 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 102 flow [2023-11-19 08:05:17,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2023-11-19 08:05:17,784 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 0 predicate places. [2023-11-19 08:05:17,784 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 102 flow [2023-11-19 08:05:17,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 08:05:17,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:05:17,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:17,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:05:17,786 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 08:05:17,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:17,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1444085789, now seen corresponding path program 1 times [2023-11-19 08:05:17,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:17,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067655228] [2023-11-19 08:05:17,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:17,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:18,093 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 08:05:18,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:18,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067655228] [2023-11-19 08:05:18,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067655228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:18,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:18,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:05:18,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585515880] [2023-11-19 08:05:18,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:18,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:05:18,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:18,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:05:18,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:05:18,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 226 [2023-11-19 08:05:18,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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 08:05:18,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:05:18,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 226 [2023-11-19 08:05:18,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:05:18,575 INFO L124 PetriNetUnfolderBase]: 1085/1719 cut-off events. [2023-11-19 08:05:18,575 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2023-11-19 08:05:18,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4147 conditions, 1719 events. 1085/1719 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 7864 event pairs, 398 based on Foata normal form. 0/1517 useless extension candidates. Maximal degree in co-relation 4136. Up to 1387 conditions per place. [2023-11-19 08:05:18,592 INFO L140 encePairwiseOnDemand]: 219/226 looper letters, 37 selfloop transitions, 4 changer transitions 0/42 dead transitions. [2023-11-19 08:05:18,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 42 transitions, 202 flow [2023-11-19 08:05:18,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:05:18,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:05:18,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 428 transitions. [2023-11-19 08:05:18,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47345132743362833 [2023-11-19 08:05:18,597 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 428 transitions. [2023-11-19 08:05:18,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 428 transitions. [2023-11-19 08:05:18,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:05:18,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 428 transitions. [2023-11-19 08:05:18,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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 08:05:18,608 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 08:05:18,610 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 08:05:18,610 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 102 flow. Second operand 4 states and 428 transitions. [2023-11-19 08:05:18,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 42 transitions, 202 flow [2023-11-19 08:05:18,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 42 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:05:18,616 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 94 flow [2023-11-19 08:05:18,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2023-11-19 08:05:18,617 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -1 predicate places. [2023-11-19 08:05:18,624 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 94 flow [2023-11-19 08:05:18,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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 08:05:18,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:05:18,625 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:18,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:05:18,625 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 08:05:18,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:18,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1444085790, now seen corresponding path program 1 times [2023-11-19 08:05:18,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:18,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284023254] [2023-11-19 08:05:18,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:18,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:18,796 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 08:05:18,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:18,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284023254] [2023-11-19 08:05:18,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284023254] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:18,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:18,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:05:18,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165660906] [2023-11-19 08:05:18,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:18,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:05:18,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:18,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:05:18,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:05:18,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 226 [2023-11-19 08:05:18,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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 08:05:18,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:05:18,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 226 [2023-11-19 08:05:18,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:05:19,095 INFO L124 PetriNetUnfolderBase]: 494/818 cut-off events. [2023-11-19 08:05:19,096 INFO L125 PetriNetUnfolderBase]: For 225/225 co-relation queries the response was YES. [2023-11-19 08:05:19,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1982 conditions, 818 events. 494/818 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3278 event pairs, 212 based on Foata normal form. 39/827 useless extension candidates. Maximal degree in co-relation 1970. Up to 323 conditions per place. [2023-11-19 08:05:19,103 INFO L140 encePairwiseOnDemand]: 218/226 looper letters, 45 selfloop transitions, 7 changer transitions 3/56 dead transitions. [2023-11-19 08:05:19,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 56 transitions, 270 flow [2023-11-19 08:05:19,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:05:19,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:05:19,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 443 transitions. [2023-11-19 08:05:19,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49004424778761063 [2023-11-19 08:05:19,106 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 443 transitions. [2023-11-19 08:05:19,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 443 transitions. [2023-11-19 08:05:19,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:05:19,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 443 transitions. [2023-11-19 08:05:19,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 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 08:05:19,111 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 08:05:19,112 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 08:05:19,112 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 94 flow. Second operand 4 states and 443 transitions. [2023-11-19 08:05:19,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 56 transitions, 270 flow [2023-11-19 08:05:19,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 56 transitions, 265 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:05:19,116 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 117 flow [2023-11-19 08:05:19,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=117, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2023-11-19 08:05:19,118 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-11-19 08:05:19,118 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 117 flow [2023-11-19 08:05:19,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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 08:05:19,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:05:19,119 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:19,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:05:19,124 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 08:05:19,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:19,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1466327076, now seen corresponding path program 1 times [2023-11-19 08:05:19,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:19,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705572394] [2023-11-19 08:05:19,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:19,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:19,341 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 08:05:19,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:19,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705572394] [2023-11-19 08:05:19,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705572394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:19,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:19,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:05:19,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140787151] [2023-11-19 08:05:19,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:19,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:05:19,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:19,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:05:19,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:05:19,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 226 [2023-11-19 08:05:19,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 117 flow. Second operand has 5 states, 5 states have (on average 99.4) internal successors, (497), 5 states have internal predecessors, (497), 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 08:05:19,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:05:19,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 226 [2023-11-19 08:05:19,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:05:19,590 INFO L124 PetriNetUnfolderBase]: 430/686 cut-off events. [2023-11-19 08:05:19,590 INFO L125 PetriNetUnfolderBase]: For 468/468 co-relation queries the response was YES. [2023-11-19 08:05:19,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1860 conditions, 686 events. 430/686 cut-off events. For 468/468 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2692 event pairs, 196 based on Foata normal form. 17/691 useless extension candidates. Maximal degree in co-relation 1847. Up to 323 conditions per place. [2023-11-19 08:05:19,593 INFO L140 encePairwiseOnDemand]: 218/226 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2023-11-19 08:05:19,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 46 transitions, 231 flow [2023-11-19 08:05:19,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:05:19,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 08:05:19,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 529 transitions. [2023-11-19 08:05:19,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46814159292035395 [2023-11-19 08:05:19,596 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 529 transitions. [2023-11-19 08:05:19,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 529 transitions. [2023-11-19 08:05:19,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:05:19,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 529 transitions. [2023-11-19 08:05:19,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 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 08:05:19,602 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 08:05:19,603 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 08:05:19,603 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 117 flow. Second operand 5 states and 529 transitions. [2023-11-19 08:05:19,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 46 transitions, 231 flow [2023-11-19 08:05:19,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 46 transitions, 207 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-19 08:05:19,608 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2023-11-19 08:05:19,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2023-11-19 08:05:19,610 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -6 predicate places. [2023-11-19 08:05:19,611 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2023-11-19 08:05:19,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.4) internal successors, (497), 5 states have internal predecessors, (497), 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 08:05:19,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-19 08:05:19,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-19 08:05:19,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-19 08:05:19,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-19 08:05:19,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-19 08:05:19,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-19 08:05:19,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-19 08:05:19,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-19 08:05:19,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-19 08:05:19,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-19 08:05:19,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-19 08:05:19,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-19 08:05:19,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-19 08:05:19,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-19 08:05:19,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-19 08:05:19,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:05:19,622 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 08:05:19,628 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 08:05:19,628 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:05:19,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:05:19 BasicIcfg [2023-11-19 08:05:19,638 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:05:19,640 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:05:19,640 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:05:19,640 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:05:19,641 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:11" (3/4) ... [2023-11-19 08:05:19,642 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:05:19,645 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 08:05:19,645 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 08:05:19,645 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 08:05:19,654 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-11-19 08:05:19,654 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-19 08:05:19,655 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 08:05:19,655 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:05:19,774 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec766937-3897-47ab-8366-aa6932c50e0c/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:05:19,775 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec766937-3897-47ab-8366-aa6932c50e0c/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:05:19,775 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:05:19,775 INFO L158 Benchmark]: Toolchain (without parser) took 10763.10ms. Allocated memory was 151.0MB in the beginning and 224.4MB in the end (delta: 73.4MB). Free memory was 114.0MB in the beginning and 161.8MB in the end (delta: -47.8MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2023-11-19 08:05:19,776 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:05:19,776 INFO L158 Benchmark]: CACSL2BoogieTranslator took 715.69ms. Allocated memory is still 151.0MB. Free memory was 114.0MB in the beginning and 88.2MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 08:05:19,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.14ms. Allocated memory is still 151.0MB. Free memory was 88.2MB in the beginning and 85.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:05:19,777 INFO L158 Benchmark]: Boogie Preprocessor took 70.51ms. Allocated memory is still 151.0MB. Free memory was 85.3MB in the beginning and 83.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:05:19,777 INFO L158 Benchmark]: RCFGBuilder took 1117.05ms. Allocated memory is still 151.0MB. Free memory was 83.2MB in the beginning and 71.0MB in the end (delta: 12.2MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2023-11-19 08:05:19,777 INFO L158 Benchmark]: TraceAbstraction took 8609.70ms. Allocated memory was 151.0MB in the beginning and 224.4MB in the end (delta: 73.4MB). Free memory was 70.2MB in the beginning and 167.0MB in the end (delta: -96.8MB). Peak memory consumption was 85.4MB. Max. memory is 16.1GB. [2023-11-19 08:05:19,778 INFO L158 Benchmark]: Witness Printer took 135.15ms. Allocated memory is still 224.4MB. Free memory was 167.0MB in the beginning and 161.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 08:05:19,780 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 715.69ms. Allocated memory is still 151.0MB. Free memory was 114.0MB in the beginning and 88.2MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.14ms. Allocated memory is still 151.0MB. Free memory was 88.2MB in the beginning and 85.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.51ms. Allocated memory is still 151.0MB. Free memory was 85.3MB in the beginning and 83.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1117.05ms. Allocated memory is still 151.0MB. Free memory was 83.2MB in the beginning and 71.0MB in the end (delta: 12.2MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8609.70ms. Allocated memory was 151.0MB in the beginning and 224.4MB in the end (delta: 73.4MB). Free memory was 70.2MB in the beginning and 167.0MB in the end (delta: -96.8MB). Peak memory consumption was 85.4MB. Max. memory is 16.1GB. * Witness Printer took 135.15ms. Allocated memory is still 224.4MB. Free memory was 167.0MB in the beginning and 161.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.1s, 125 PlacesBefore, 39 PlacesAfterwards, 118 TransitionsBefore, 30 TransitionsAfterwards, 3126 CoEnabledTransitionPairs, 7 FixpointIterations, 36 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 105 TotalNumberOfCompositions, 9729 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3560, independent: 3283, independent conditional: 0, independent unconditional: 3283, dependent: 277, dependent conditional: 0, dependent unconditional: 277, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1723, independent: 1675, independent conditional: 0, independent unconditional: 1675, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3560, independent: 1608, independent conditional: 0, independent unconditional: 1608, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 1723, unknown conditional: 0, unknown unconditional: 1723] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 123, Positive conditional cache size: 0, Positive unconditional cache size: 123, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 834]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 834]: 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, 154 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: 8.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 270 IncrementalHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 4 mSDtfsCounter, 270 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=117occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 129 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 08:05:19,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec766937-3897-47ab-8366-aa6932c50e0c/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