./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe009_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/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_8e0f4983-3a10-479a-980f-3ffff57e037a/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe009_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/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_8e0f4983-3a10-479a-980f-3ffff57e037a/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 9047d35108a9c07c04b519cba211a741bb80887623b2a85c45105c17ca835121 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:04:36,476 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:04:36,605 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 08:04:36,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:04:36,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:04:36,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:04:36,655 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:04:36,656 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:04:36,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:04:36,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:04:36,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:04:36,665 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:04:36,665 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:04:36,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:04:36,668 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:04:36,668 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:04:36,669 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:04:36,669 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:04:36,670 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:04:36,670 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:04:36,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:04:36,671 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:04:36,672 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 08:04:36,672 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:04:36,673 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:04:36,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:04:36,674 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:04:36,675 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:04:36,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:04:36,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:04:36,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:36,678 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:04:36,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:04:36,679 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:04:36,679 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:04:36,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:04:36,680 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:04:36,680 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:04:36,680 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:04:36,681 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:04:36,681 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:04:36,682 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_8e0f4983-3a10-479a-980f-3ffff57e037a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9047d35108a9c07c04b519cba211a741bb80887623b2a85c45105c17ca835121 [2023-11-19 08:04:37,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:04:37,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:04:37,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:04:37,125 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:04:37,126 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:04:37,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/safe009_rmo.opt.i [2023-11-19 08:04:40,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:04:40,831 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:04:40,832 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/sv-benchmarks/c/pthread-wmm/safe009_rmo.opt.i [2023-11-19 08:04:40,861 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/bin/uautomizer-verify-uCwYo4JHxu/data/d26bc6e1e/a84f3f6366a8433b921c2f161bc8a5b5/FLAG6deefca9d [2023-11-19 08:04:40,884 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/bin/uautomizer-verify-uCwYo4JHxu/data/d26bc6e1e/a84f3f6366a8433b921c2f161bc8a5b5 [2023-11-19 08:04:40,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:04:40,892 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:04:40,896 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:40,896 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:04:40,902 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:04:40,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:40" (1/1) ... [2023-11-19 08:04:40,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fcd7711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:40, skipping insertion in model container [2023-11-19 08:04:40,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:40" (1/1) ... [2023-11-19 08:04:40,979 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:04:41,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:41,464 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:04:41,574 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:41,624 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:41,624 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:41,632 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:04:41,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:41 WrapperNode [2023-11-19 08:04:41,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:41,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:41,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:04:41,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:04:41,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:41" (1/1) ... [2023-11-19 08:04:41,660 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:41" (1/1) ... [2023-11-19 08:04:41,690 INFO L138 Inliner]: procedures = 176, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 138 [2023-11-19 08:04:41,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:41,693 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:04:41,694 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:04:41,694 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:04:41,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:41" (1/1) ... [2023-11-19 08:04:41,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:41" (1/1) ... [2023-11-19 08:04:41,718 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:41" (1/1) ... [2023-11-19 08:04:41,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:41" (1/1) ... [2023-11-19 08:04:41,738 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:41" (1/1) ... [2023-11-19 08:04:41,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:41" (1/1) ... [2023-11-19 08:04:41,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:41" (1/1) ... [2023-11-19 08:04:41,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:41" (1/1) ... [2023-11-19 08:04:41,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:04:41,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:04:41,774 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:04:41,774 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:04:41,775 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:41" (1/1) ... [2023-11-19 08:04:41,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:41,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:41,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:41,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:04:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:04:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:04:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 08:04:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:04:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:04:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:04:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 08:04:41,871 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 08:04:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 08:04:41,872 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 08:04:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 08:04:41,872 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 08:04:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:04:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 08:04:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:04:41,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:04:41,876 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 08:04:42,099 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:04:42,101 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:04:42,590 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:04:43,062 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:04:43,062 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:04:43,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:43 BoogieIcfgContainer [2023-11-19 08:04:43,067 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:04:43,070 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:04:43,070 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:04:43,074 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:04:43,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:04:40" (1/3) ... [2023-11-19 08:04:43,075 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4e7e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:43, skipping insertion in model container [2023-11-19 08:04:43,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:41" (2/3) ... [2023-11-19 08:04:43,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4e7e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:43, skipping insertion in model container [2023-11-19 08:04:43,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:43" (3/3) ... [2023-11-19 08:04:43,078 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_rmo.opt.i [2023-11-19 08:04:43,088 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:04:43,101 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:04:43,101 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 08:04:43,101 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:04:43,178 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 08:04:43,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 137 transitions, 286 flow [2023-11-19 08:04:43,306 INFO L124 PetriNetUnfolderBase]: 3/134 cut-off events. [2023-11-19 08:04:43,306 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:04:43,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 134 events. 3/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2023-11-19 08:04:43,320 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 137 transitions, 286 flow [2023-11-19 08:04:43,333 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 134 transitions, 277 flow [2023-11-19 08:04:43,337 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:04:43,349 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 134 transitions, 277 flow [2023-11-19 08:04:43,352 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 134 transitions, 277 flow [2023-11-19 08:04:43,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 134 transitions, 277 flow [2023-11-19 08:04:43,402 INFO L124 PetriNetUnfolderBase]: 3/134 cut-off events. [2023-11-19 08:04:43,402 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:04:43,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 134 events. 3/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2023-11-19 08:04:43,407 INFO L119 LiptonReduction]: Number of co-enabled transitions 2752 [2023-11-19 08:04:51,182 INFO L134 LiptonReduction]: Checked pairs total: 9349 [2023-11-19 08:04:51,182 INFO L136 LiptonReduction]: Total number of compositions: 119 [2023-11-19 08:04:51,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:04:51,209 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;@324eb9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:04:51,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-19 08:04:51,216 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:04:51,216 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-19 08:04:51,216 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:04:51,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:04:51,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 08:04:51,218 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 08:04:51,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:51,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1574703526, now seen corresponding path program 1 times [2023-11-19 08:04:51,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:51,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953023552] [2023-11-19 08:04:51,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:51,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:51,651 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 08:04:51,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:51,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953023552] [2023-11-19 08:04:51,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953023552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:51,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:51,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:04:51,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60440721] [2023-11-19 08:04:51,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:51,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:51,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:51,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:51,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:51,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 256 [2023-11-19 08:04:51,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 08:04:51,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:04:51,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 256 [2023-11-19 08:04:51,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:04:52,493 INFO L124 PetriNetUnfolderBase]: 2149/3130 cut-off events. [2023-11-19 08:04:52,493 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-19 08:04:52,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6331 conditions, 3130 events. 2149/3130 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 14381 event pairs, 2149 based on Foata normal form. 150/2588 useless extension candidates. Maximal degree in co-relation 6320. Up to 3122 conditions per place. [2023-11-19 08:04:52,525 INFO L140 encePairwiseOnDemand]: 251/256 looper letters, 23 selfloop transitions, 1 changer transitions 0/25 dead transitions. [2023-11-19 08:04:52,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 25 transitions, 107 flow [2023-11-19 08:04:52,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:52,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:04:52,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2023-11-19 08:04:52,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4778645833333333 [2023-11-19 08:04:52,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2023-11-19 08:04:52,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2023-11-19 08:04:52,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:04:52,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2023-11-19 08:04:52,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 08:04:52,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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 08:04:52,561 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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 08:04:52,563 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 67 flow. Second operand 3 states and 367 transitions. [2023-11-19 08:04:52,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 25 transitions, 107 flow [2023-11-19 08:04:52,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 25 transitions, 104 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 08:04:52,570 INFO L231 Difference]: Finished difference. Result has 34 places, 25 transitions, 58 flow [2023-11-19 08:04:52,572 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2023-11-19 08:04:52,576 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -4 predicate places. [2023-11-19 08:04:52,576 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 58 flow [2023-11-19 08:04:52,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 08:04:52,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:04:52,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 08:04:52,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:04:52,578 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 08:04:52,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:52,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1574703527, now seen corresponding path program 1 times [2023-11-19 08:04:52,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:52,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314100348] [2023-11-19 08:04:52,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:52,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:52,670 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 08:04:52,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:52,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314100348] [2023-11-19 08:04:52,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314100348] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:52,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:52,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:04:52,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250709254] [2023-11-19 08:04:52,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:52,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:52,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:52,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:52,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:52,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 256 [2023-11-19 08:04:52,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 08:04:52,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:04:52,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 256 [2023-11-19 08:04:52,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:04:53,098 INFO L124 PetriNetUnfolderBase]: 935/1490 cut-off events. [2023-11-19 08:04:53,098 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:04:53,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3032 conditions, 1490 events. 935/1490 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6742 event pairs, 345 based on Foata normal form. 0/1238 useless extension candidates. Maximal degree in co-relation 3026. Up to 1223 conditions per place. [2023-11-19 08:04:53,112 INFO L140 encePairwiseOnDemand]: 248/256 looper letters, 35 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2023-11-19 08:04:53,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 40 transitions, 170 flow [2023-11-19 08:04:53,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:53,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:04:53,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2023-11-19 08:04:53,118 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4973958333333333 [2023-11-19 08:04:53,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2023-11-19 08:04:53,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2023-11-19 08:04:53,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:04:53,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2023-11-19 08:04:53,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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 08:04:53,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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 08:04:53,131 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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 08:04:53,131 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 58 flow. Second operand 3 states and 382 transitions. [2023-11-19 08:04:53,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 40 transitions, 170 flow [2023-11-19 08:04:53,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 169 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:04:53,134 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 89 flow [2023-11-19 08:04:53,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2023-11-19 08:04:53,141 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2023-11-19 08:04:53,141 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 89 flow [2023-11-19 08:04:53,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 08:04:53,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:04:53,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:53,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:04:53,143 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 08:04:53,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:53,146 INFO L85 PathProgramCache]: Analyzing trace with hash -703041035, now seen corresponding path program 1 times [2023-11-19 08:04:53,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:53,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730777487] [2023-11-19 08:04:53,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:53,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:53,291 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 08:04:53,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:53,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730777487] [2023-11-19 08:04:53,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730777487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:53,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:53,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:53,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124321210] [2023-11-19 08:04:53,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:53,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:53,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:53,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:53,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:53,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 256 [2023-11-19 08:04:53,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 89 flow. Second operand has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 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 08:04:53,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:04:53,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 256 [2023-11-19 08:04:53,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:04:53,572 INFO L124 PetriNetUnfolderBase]: 414/695 cut-off events. [2023-11-19 08:04:53,572 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-11-19 08:04:53,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1698 conditions, 695 events. 414/695 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2755 event pairs, 171 based on Foata normal form. 33/706 useless extension candidates. Maximal degree in co-relation 1690. Up to 260 conditions per place. [2023-11-19 08:04:53,578 INFO L140 encePairwiseOnDemand]: 248/256 looper letters, 42 selfloop transitions, 7 changer transitions 3/53 dead transitions. [2023-11-19 08:04:53,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 53 transitions, 255 flow [2023-11-19 08:04:53,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:53,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:04:53,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2023-11-19 08:04:53,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49609375 [2023-11-19 08:04:53,582 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 508 transitions. [2023-11-19 08:04:53,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 508 transitions. [2023-11-19 08:04:53,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:04:53,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 508 transitions. [2023-11-19 08:04:53,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 08:04:53,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 256.0) internal successors, (1280), 5 states have internal predecessors, (1280), 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 08:04:53,588 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 256.0) internal successors, (1280), 5 states have internal predecessors, (1280), 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 08:04:53,589 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 89 flow. Second operand 4 states and 508 transitions. [2023-11-19 08:04:53,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 53 transitions, 255 flow [2023-11-19 08:04:53,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 53 transitions, 251 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:04:53,592 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 113 flow [2023-11-19 08:04:53,592 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2023-11-19 08:04:53,593 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2023-11-19 08:04:53,593 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 113 flow [2023-11-19 08:04:53,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 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 08:04:53,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:04:53,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:53,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:04:53,595 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 08:04:53,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:53,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1671820260, now seen corresponding path program 1 times [2023-11-19 08:04:53,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:53,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335945447] [2023-11-19 08:04:53,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:53,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:53,775 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 08:04:53,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:53,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335945447] [2023-11-19 08:04:53,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335945447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:53,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:53,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:53,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753195158] [2023-11-19 08:04:53,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:53,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:04:53,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:53,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:04:53,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:53,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 256 [2023-11-19 08:04:53,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 113 flow. Second operand has 5 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 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 08:04:53,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:04:53,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 256 [2023-11-19 08:04:53,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:04:54,014 INFO L124 PetriNetUnfolderBase]: 354/571 cut-off events. [2023-11-19 08:04:54,014 INFO L125 PetriNetUnfolderBase]: For 387/387 co-relation queries the response was YES. [2023-11-19 08:04:54,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1490 conditions, 571 events. 354/571 cut-off events. For 387/387 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2220 event pairs, 155 based on Foata normal form. 16/583 useless extension candidates. Maximal degree in co-relation 1480. Up to 260 conditions per place. [2023-11-19 08:04:54,018 INFO L140 encePairwiseOnDemand]: 248/256 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2023-11-19 08:04:54,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 43 transitions, 217 flow [2023-11-19 08:04:54,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:04:54,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 08:04:54,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2023-11-19 08:04:54,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47734375 [2023-11-19 08:04:54,022 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 611 transitions. [2023-11-19 08:04:54,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 611 transitions. [2023-11-19 08:04:54,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:04:54,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 611 transitions. [2023-11-19 08:04:54,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 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 08:04:54,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 256.0) internal successors, (1536), 6 states have internal predecessors, (1536), 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 08:04:54,031 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 256.0) internal successors, (1536), 6 states have internal predecessors, (1536), 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 08:04:54,031 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 113 flow. Second operand 5 states and 611 transitions. [2023-11-19 08:04:54,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 43 transitions, 217 flow [2023-11-19 08:04:54,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 43 transitions, 193 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-19 08:04:54,035 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2023-11-19 08:04:54,035 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2023-11-19 08:04:54,036 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -6 predicate places. [2023-11-19 08:04:54,036 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2023-11-19 08:04:54,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 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 08:04:54,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-19 08:04:54,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-19 08:04:54,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-19 08:04:54,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-19 08:04:54,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-19 08:04:54,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-19 08:04:54,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-19 08:04:54,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-19 08:04:54,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-19 08:04:54,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-19 08:04:54,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-19 08:04:54,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-19 08:04:54,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-19 08:04:54,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-19 08:04:54,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-19 08:04:54,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:04:54,044 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 08:04:54,050 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 08:04:54,050 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:04:54,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:04:54 BasicIcfg [2023-11-19 08:04:54,055 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:04:54,056 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:04:54,056 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:04:54,056 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:04:54,057 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:43" (3/4) ... [2023-11-19 08:04:54,059 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:04:54,062 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 08:04:54,062 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 08:04:54,062 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 08:04:54,068 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-19 08:04:54,068 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 08:04:54,068 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 08:04:54,069 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:04:54,174 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:04:54,174 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:04:54,175 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:04:54,176 INFO L158 Benchmark]: Toolchain (without parser) took 13283.47ms. Allocated memory was 178.3MB in the beginning and 287.3MB in the end (delta: 109.1MB). Free memory was 131.8MB in the beginning and 140.9MB in the end (delta: -9.2MB). Peak memory consumption was 101.1MB. Max. memory is 16.1GB. [2023-11-19 08:04:54,176 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 178.3MB. Free memory is still 153.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:04:54,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 737.96ms. Allocated memory is still 178.3MB. Free memory was 131.8MB in the beginning and 108.3MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 08:04:54,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.50ms. Allocated memory is still 178.3MB. Free memory was 108.3MB in the beginning and 105.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:04:54,177 INFO L158 Benchmark]: Boogie Preprocessor took 79.18ms. Allocated memory is still 178.3MB. Free memory was 105.9MB in the beginning and 103.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:04:54,178 INFO L158 Benchmark]: RCFGBuilder took 1293.88ms. Allocated memory is still 178.3MB. Free memory was 103.7MB in the beginning and 126.0MB in the end (delta: -22.3MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2023-11-19 08:04:54,179 INFO L158 Benchmark]: TraceAbstraction took 10985.31ms. Allocated memory was 178.3MB in the beginning and 287.3MB in the end (delta: 109.1MB). Free memory was 126.0MB in the beginning and 145.1MB in the end (delta: -19.1MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB. [2023-11-19 08:04:54,179 INFO L158 Benchmark]: Witness Printer took 118.95ms. Allocated memory is still 287.3MB. Free memory was 145.1MB in the beginning and 140.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:04:54,182 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 178.3MB. Free memory is still 153.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 737.96ms. Allocated memory is still 178.3MB. Free memory was 131.8MB in the beginning and 108.3MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.50ms. Allocated memory is still 178.3MB. Free memory was 108.3MB in the beginning and 105.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.18ms. Allocated memory is still 178.3MB. Free memory was 105.9MB in the beginning and 103.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1293.88ms. Allocated memory is still 178.3MB. Free memory was 103.7MB in the beginning and 126.0MB in the end (delta: -22.3MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10985.31ms. Allocated memory was 178.3MB in the beginning and 287.3MB in the end (delta: 109.1MB). Free memory was 126.0MB in the beginning and 145.1MB in the end (delta: -19.1MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB. * Witness Printer took 118.95ms. Allocated memory is still 287.3MB. Free memory was 145.1MB in the beginning and 140.9MB in the end (delta: 4.2MB). 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: 7.8s, 141 PlacesBefore, 38 PlacesAfterwards, 134 TransitionsBefore, 29 TransitionsAfterwards, 2752 CoEnabledTransitionPairs, 7 FixpointIterations, 55 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 119 TotalNumberOfCompositions, 9349 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3126, independent: 2845, independent conditional: 0, independent unconditional: 2845, dependent: 281, dependent conditional: 0, dependent unconditional: 281, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1486, independent: 1435, independent conditional: 0, independent unconditional: 1435, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3126, independent: 1410, independent conditional: 0, independent unconditional: 1410, dependent: 230, dependent conditional: 0, dependent unconditional: 230, unknown: 1486, unknown conditional: 0, unknown unconditional: 1486] , Statistics on independence cache: Total cache size (in pairs): 140, Positive cache size: 119, Positive conditional cache size: 0, Positive unconditional cache size: 119, 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: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 823]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 823]: 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, 167 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: 10.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 188 IncrementalHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 4 mSDtfsCounter, 188 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=113occurred 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, 0.5s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 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 08:04:54,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f4983-3a10-479a-980f-3ffff57e037a/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