./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe008_power.oepc_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_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/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_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/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_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/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 e73cda23545f4a54d3eef0093038f0fb79909f0b7b9d845db14abda8dd1f5281 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:44:59,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:44:59,896 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:44:59,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:44:59,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:44:59,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:44:59,938 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:44:59,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:44:59,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:44:59,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:44:59,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:44:59,943 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:44:59,944 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:44:59,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:44:59,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:44:59,946 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:44:59,947 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:44:59,948 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:44:59,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:44:59,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:44:59,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:44:59,956 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:44:59,956 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:44:59,957 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:44:59,957 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:44:59,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:44:59,958 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:44:59,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:44:59,960 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:44:59,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:44:59,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:44:59,961 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:44:59,962 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:44:59,962 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:44:59,963 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:44:59,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:44:59,964 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:44:59,964 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:44:59,965 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:44:59,965 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:44:59,966 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:44:59,966 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_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e73cda23545f4a54d3eef0093038f0fb79909f0b7b9d845db14abda8dd1f5281 [2023-11-19 07:45:00,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:45:00,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:45:00,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:45:00,312 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:45:00,313 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:45:00,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-19 07:45:03,573 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:45:03,956 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:45:03,957 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/sv-benchmarks/c/pthread-wmm/safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-19 07:45:03,983 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/bin/uautomizer-verify-uCwYo4JHxu/data/ff731b232/05fe83cde61e4a508f1cf35e8c19fe21/FLAG9210805e9 [2023-11-19 07:45:04,002 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/bin/uautomizer-verify-uCwYo4JHxu/data/ff731b232/05fe83cde61e4a508f1cf35e8c19fe21 [2023-11-19 07:45:04,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:45:04,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:45:04,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:04,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:45:04,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:45:04,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:04" (1/1) ... [2023-11-19 07:45:04,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e12afc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:04, skipping insertion in model container [2023-11-19 07:45:04,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:04" (1/1) ... [2023-11-19 07:45:04,105 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:45:04,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:04,572 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:45:04,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:04,753 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:45:04,754 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:45:04,763 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:45:04,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:04 WrapperNode [2023-11-19 07:45:04,764 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:04,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:04,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:45:04,771 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:45:04,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:04" (1/1) ... [2023-11-19 07:45:04,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:04" (1/1) ... [2023-11-19 07:45:04,876 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 152 [2023-11-19 07:45:04,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:04,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:45:04,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:45:04,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:45:04,888 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:04" (1/1) ... [2023-11-19 07:45:04,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:04" (1/1) ... [2023-11-19 07:45:04,893 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:04" (1/1) ... [2023-11-19 07:45:04,893 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:04" (1/1) ... [2023-11-19 07:45:04,903 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:04" (1/1) ... [2023-11-19 07:45:04,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:04" (1/1) ... [2023-11-19 07:45:04,909 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:04" (1/1) ... [2023-11-19 07:45:04,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:04" (1/1) ... [2023-11-19 07:45:04,915 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:45:04,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:45:04,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:45:04,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:45:04,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:04" (1/1) ... [2023-11-19 07:45:04,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:04,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:45:04,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:45:04,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:45:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:45:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:45:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:45:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:45:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:45:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:45:05,015 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:45:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:45:05,015 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:45:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:45:05,016 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:45:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:45:05,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:45:05,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:45:05,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:45:05,020 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 07:45:05,241 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:45:05,243 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:45:05,597 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:45:05,859 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:45:05,859 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:45:05,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:05 BoogieIcfgContainer [2023-11-19 07:45:05,875 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:45:05,878 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:45:05,878 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:45:05,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:45:05,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:45:04" (1/3) ... [2023-11-19 07:45:05,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1067f425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:05, skipping insertion in model container [2023-11-19 07:45:05,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:04" (2/3) ... [2023-11-19 07:45:05,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1067f425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:05, skipping insertion in model container [2023-11-19 07:45:05,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:05" (3/3) ... [2023-11-19 07:45:05,889 INFO L112 eAbstractionObserver]: Analyzing ICFG safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-19 07:45:05,899 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:45:05,911 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:45:05,911 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:45:05,911 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:45:05,996 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:45:06,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 120 transitions, 252 flow [2023-11-19 07:45:06,155 INFO L124 PetriNetUnfolderBase]: 3/117 cut-off events. [2023-11-19 07:45:06,155 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:45:06,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 117 events. 3/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2023-11-19 07:45:06,162 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 120 transitions, 252 flow [2023-11-19 07:45:06,169 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 117 transitions, 243 flow [2023-11-19 07:45:06,175 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:45:06,198 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 117 transitions, 243 flow [2023-11-19 07:45:06,204 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 117 transitions, 243 flow [2023-11-19 07:45:06,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 117 transitions, 243 flow [2023-11-19 07:45:06,260 INFO L124 PetriNetUnfolderBase]: 3/117 cut-off events. [2023-11-19 07:45:06,261 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:45:06,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 117 events. 3/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2023-11-19 07:45:06,266 INFO L119 LiptonReduction]: Number of co-enabled transitions 2862 [2023-11-19 07:45:11,735 INFO L134 LiptonReduction]: Checked pairs total: 9157 [2023-11-19 07:45:11,736 INFO L136 LiptonReduction]: Total number of compositions: 101 [2023-11-19 07:45:11,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:45:11,763 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;@24a53942, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:45:11,763 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-19 07:45:11,770 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:45:11,770 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-19 07:45:11,770 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:45:11,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:45:11,771 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:45:11,772 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 07:45:11,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:11,778 INFO L85 PathProgramCache]: Analyzing trace with hash -740114944, now seen corresponding path program 1 times [2023-11-19 07:45:11,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:11,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846803517] [2023-11-19 07:45:11,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:11,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:12,219 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 07:45:12,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:12,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846803517] [2023-11-19 07:45:12,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846803517] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:12,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:12,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:45:12,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745692948] [2023-11-19 07:45:12,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:12,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:45:12,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:12,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:45:12,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:45:12,283 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 221 [2023-11-19 07:45:12,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 07:45:12,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:45:12,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 221 [2023-11-19 07:45:12,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:45:12,829 INFO L124 PetriNetUnfolderBase]: 1164/1748 cut-off events. [2023-11-19 07:45:12,829 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-19 07:45:12,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3540 conditions, 1748 events. 1164/1748 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 8081 event pairs, 1164 based on Foata normal form. 0/1407 useless extension candidates. Maximal degree in co-relation 3529. Up to 1725 conditions per place. [2023-11-19 07:45:12,856 INFO L140 encePairwiseOnDemand]: 217/221 looper letters, 20 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-11-19 07:45:12,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 24 transitions, 99 flow [2023-11-19 07:45:12,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:45:12,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:45:12,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 315 transitions. [2023-11-19 07:45:12,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4751131221719457 [2023-11-19 07:45:12,882 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 315 transitions. [2023-11-19 07:45:12,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 315 transitions. [2023-11-19 07:45:12,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:45:12,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 315 transitions. [2023-11-19 07:45:12,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 07:45:12,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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 07:45:12,904 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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 07:45:12,906 INFO L175 Difference]: Start difference. First operand has 37 places, 27 transitions, 63 flow. Second operand 3 states and 315 transitions. [2023-11-19 07:45:12,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 24 transitions, 99 flow [2023-11-19 07:45:12,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 24 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:45:12,914 INFO L231 Difference]: Finished difference. Result has 33 places, 24 transitions, 56 flow [2023-11-19 07:45:12,916 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=33, PETRI_TRANSITIONS=24} [2023-11-19 07:45:12,920 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -4 predicate places. [2023-11-19 07:45:12,921 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 56 flow [2023-11-19 07:45:12,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 07:45:12,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:45:12,922 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:45:12,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:45:12,922 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:45:12,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:12,933 INFO L85 PathProgramCache]: Analyzing trace with hash -740114943, now seen corresponding path program 1 times [2023-11-19 07:45:12,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:12,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963940338] [2023-11-19 07:45:12,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:12,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:13,043 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 07:45:13,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:13,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963940338] [2023-11-19 07:45:13,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963940338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:13,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:13,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:45:13,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566490767] [2023-11-19 07:45:13,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:13,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:45:13,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:13,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:45:13,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:45:13,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 221 [2023-11-19 07:45:13,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 07:45:13,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:45:13,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 221 [2023-11-19 07:45:13,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:45:13,338 INFO L124 PetriNetUnfolderBase]: 727/1141 cut-off events. [2023-11-19 07:45:13,338 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:45:13,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2315 conditions, 1141 events. 727/1141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 5193 event pairs, 246 based on Foata normal form. 0/1016 useless extension candidates. Maximal degree in co-relation 2309. Up to 774 conditions per place. [2023-11-19 07:45:13,348 INFO L140 encePairwiseOnDemand]: 214/221 looper letters, 33 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2023-11-19 07:45:13,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 40 transitions, 166 flow [2023-11-19 07:45:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:45:13,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:45:13,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 331 transitions. [2023-11-19 07:45:13,351 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49924585218702866 [2023-11-19 07:45:13,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 331 transitions. [2023-11-19 07:45:13,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 331 transitions. [2023-11-19 07:45:13,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:45:13,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 331 transitions. [2023-11-19 07:45:13,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 07:45:13,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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 07:45:13,357 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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 07:45:13,357 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 56 flow. Second operand 3 states and 331 transitions. [2023-11-19 07:45:13,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 40 transitions, 166 flow [2023-11-19 07:45:13,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 40 transitions, 165 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:45:13,359 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 85 flow [2023-11-19 07:45:13,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2023-11-19 07:45:13,360 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2023-11-19 07:45:13,360 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 85 flow [2023-11-19 07:45:13,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 07:45:13,361 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:45:13,361 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:45:13,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:45:13,361 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 07:45:13,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:13,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1321543092, now seen corresponding path program 1 times [2023-11-19 07:45:13,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:13,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615163309] [2023-11-19 07:45:13,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:13,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:13,488 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 07:45:13,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:13,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615163309] [2023-11-19 07:45:13,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615163309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:13,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:13,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:45:13,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509447397] [2023-11-19 07:45:13,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:13,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:45:13,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:13,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:45:13,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:45:13,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 221 [2023-11-19 07:45:13,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:45:13,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:45:13,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 221 [2023-11-19 07:45:13,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:45:13,797 INFO L124 PetriNetUnfolderBase]: 576/902 cut-off events. [2023-11-19 07:45:13,797 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2023-11-19 07:45:13,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2179 conditions, 902 events. 576/902 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3977 event pairs, 218 based on Foata normal form. 0/877 useless extension candidates. Maximal degree in co-relation 2171. Up to 369 conditions per place. [2023-11-19 07:45:13,805 INFO L140 encePairwiseOnDemand]: 214/221 looper letters, 41 selfloop transitions, 7 changer transitions 3/54 dead transitions. [2023-11-19 07:45:13,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 54 transitions, 253 flow [2023-11-19 07:45:13,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:45:13,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:45:13,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 442 transitions. [2023-11-19 07:45:13,808 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-11-19 07:45:13,809 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 442 transitions. [2023-11-19 07:45:13,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 442 transitions. [2023-11-19 07:45:13,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:45:13,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 442 transitions. [2023-11-19 07:45:13,811 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 07:45:13,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 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 07:45:13,815 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 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 07:45:13,815 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 85 flow. Second operand 4 states and 442 transitions. [2023-11-19 07:45:13,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 54 transitions, 253 flow [2023-11-19 07:45:13,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 249 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:45:13,820 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 107 flow [2023-11-19 07:45:13,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=107, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2023-11-19 07:45:13,822 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2023-11-19 07:45:13,822 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 107 flow [2023-11-19 07:45:13,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:45:13,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:45:13,823 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 07:45:13,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:45:13,828 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 07:45:13,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:13,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1992005420, now seen corresponding path program 1 times [2023-11-19 07:45:13,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:13,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87310481] [2023-11-19 07:45:13,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:13,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:14,061 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 07:45:14,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:14,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87310481] [2023-11-19 07:45:14,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87310481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:14,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:14,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:45:14,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461622520] [2023-11-19 07:45:14,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:14,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:45:14,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:14,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:45:14,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:45:14,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 221 [2023-11-19 07:45:14,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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 07:45:14,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:45:14,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 221 [2023-11-19 07:45:14,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:45:14,367 INFO L124 PetriNetUnfolderBase]: 556/866 cut-off events. [2023-11-19 07:45:14,367 INFO L125 PetriNetUnfolderBase]: For 681/681 co-relation queries the response was YES. [2023-11-19 07:45:14,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2237 conditions, 866 events. 556/866 cut-off events. For 681/681 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3836 event pairs, 218 based on Foata normal form. 12/865 useless extension candidates. Maximal degree in co-relation 2227. Up to 369 conditions per place. [2023-11-19 07:45:14,371 INFO L140 encePairwiseOnDemand]: 214/221 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2023-11-19 07:45:14,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 233 flow [2023-11-19 07:45:14,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:45:14,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:45:14,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 533 transitions. [2023-11-19 07:45:14,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4823529411764706 [2023-11-19 07:45:14,375 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 533 transitions. [2023-11-19 07:45:14,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 533 transitions. [2023-11-19 07:45:14,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:45:14,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 533 transitions. [2023-11-19 07:45:14,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.6) internal successors, (533), 5 states have internal predecessors, (533), 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 07:45:14,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 221.0) internal successors, (1326), 6 states have internal predecessors, (1326), 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 07:45:14,382 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 221.0) internal successors, (1326), 6 states have internal predecessors, (1326), 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 07:45:14,382 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 107 flow. Second operand 5 states and 533 transitions. [2023-11-19 07:45:14,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 233 flow [2023-11-19 07:45:14,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 48 transitions, 209 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-19 07:45:14,388 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-11-19 07:45:14,389 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-11-19 07:45:14,390 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2023-11-19 07:45:14,391 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-11-19 07:45:14,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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 07:45:14,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-19 07:45:14,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-19 07:45:14,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-19 07:45:14,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-19 07:45:14,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-19 07:45:14,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-19 07:45:14,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-19 07:45:14,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-19 07:45:14,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-19 07:45:14,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-19 07:45:14,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-19 07:45:14,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-19 07:45:14,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-19 07:45:14,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-19 07:45:14,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-19 07:45:14,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:45:14,402 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 07:45:14,410 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:45:14,410 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:45:14,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:45:14 BasicIcfg [2023-11-19 07:45:14,421 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:45:14,421 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:45:14,427 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:45:14,427 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:45:14,427 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:05" (3/4) ... [2023-11-19 07:45:14,429 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:45:14,433 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:45:14,433 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:45:14,433 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 07:45:14,442 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-11-19 07:45:14,442 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-19 07:45:14,443 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:45:14,443 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:45:14,535 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:45:14,535 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:45:14,536 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:45:14,536 INFO L158 Benchmark]: Toolchain (without parser) took 10525.03ms. Allocated memory was 119.5MB in the beginning and 184.5MB in the end (delta: 65.0MB). Free memory was 72.0MB in the beginning and 97.1MB in the end (delta: -25.1MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2023-11-19 07:45:14,537 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 119.5MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:45:14,537 INFO L158 Benchmark]: CACSL2BoogieTranslator took 750.00ms. Allocated memory is still 119.5MB. Free memory was 71.7MB in the beginning and 88.1MB in the end (delta: -16.4MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2023-11-19 07:45:14,537 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.78ms. Allocated memory is still 119.5MB. Free memory was 88.1MB in the beginning and 85.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:45:14,538 INFO L158 Benchmark]: Boogie Preprocessor took 38.23ms. Allocated memory is still 119.5MB. Free memory was 85.1MB in the beginning and 83.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:45:14,538 INFO L158 Benchmark]: RCFGBuilder took 959.23ms. Allocated memory is still 119.5MB. Free memory was 83.4MB in the beginning and 86.4MB in the end (delta: -2.9MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2023-11-19 07:45:14,539 INFO L158 Benchmark]: TraceAbstraction took 8542.64ms. Allocated memory was 119.5MB in the beginning and 184.5MB in the end (delta: 65.0MB). Free memory was 85.7MB in the beginning and 102.3MB in the end (delta: -16.6MB). Peak memory consumption was 107.7MB. Max. memory is 16.1GB. [2023-11-19 07:45:14,539 INFO L158 Benchmark]: Witness Printer took 114.61ms. Allocated memory is still 184.5MB. Free memory was 102.3MB in the beginning and 97.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:45:14,541 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 119.5MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 750.00ms. Allocated memory is still 119.5MB. Free memory was 71.7MB in the beginning and 88.1MB in the end (delta: -16.4MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.78ms. Allocated memory is still 119.5MB. Free memory was 88.1MB in the beginning and 85.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.23ms. Allocated memory is still 119.5MB. Free memory was 85.1MB in the beginning and 83.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 959.23ms. Allocated memory is still 119.5MB. Free memory was 83.4MB in the beginning and 86.4MB in the end (delta: -2.9MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8542.64ms. Allocated memory was 119.5MB in the beginning and 184.5MB in the end (delta: 65.0MB). Free memory was 85.7MB in the beginning and 102.3MB in the end (delta: -16.6MB). Peak memory consumption was 107.7MB. Max. memory is 16.1GB. * Witness Printer took 114.61ms. Allocated memory is still 184.5MB. Free memory was 102.3MB in the beginning and 97.1MB 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: 5.5s, 124 PlacesBefore, 37 PlacesAfterwards, 117 TransitionsBefore, 27 TransitionsAfterwards, 2862 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 3 ChoiceCompositions, 101 TotalNumberOfCompositions, 9157 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3456, independent: 3186, independent conditional: 0, independent unconditional: 3186, dependent: 270, dependent conditional: 0, dependent unconditional: 270, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1556, independent: 1512, independent conditional: 0, independent unconditional: 1512, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3456, independent: 1674, independent conditional: 0, independent unconditional: 1674, dependent: 226, dependent conditional: 0, dependent unconditional: 226, unknown: 1556, unknown conditional: 0, unknown unconditional: 1556] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 128, Positive conditional cache size: 0, Positive unconditional cache size: 128, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, 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: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 151 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: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 180 IncrementalHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 4 mSDtfsCounter, 180 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 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 07:45:14,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5b62c7d-a5b0-4d34-9aa0-b7bd16754eca/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