./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix038_tso.oepc.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_c23633d6-1e12-41c1-988a-f5041df05e09/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23633d6-1e12-41c1-988a-f5041df05e09/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_c23633d6-1e12-41c1-988a-f5041df05e09/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23633d6-1e12-41c1-988a-f5041df05e09/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix038_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23633d6-1e12-41c1-988a-f5041df05e09/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_c23633d6-1e12-41c1-988a-f5041df05e09/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 b1e6ad0aca14cacb1f3fe02bd616009a97ed12a62626693737be4e470d14e12e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:48:37,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:48:37,963 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23633d6-1e12-41c1-988a-f5041df05e09/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:48:37,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:48:37,970 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:48:37,995 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:48:37,995 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:48:37,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:48:37,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:48:37,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:48:37,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:48:37,999 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:48:37,999 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:48:38,000 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:48:38,001 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:48:38,001 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:48:38,002 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:48:38,002 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:48:38,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:48:38,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:48:38,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:48:38,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:48:38,005 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:48:38,005 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:48:38,006 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:48:38,006 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:48:38,007 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:48:38,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:48:38,008 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:48:38,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:48:38,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:38,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:48:38,010 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:48:38,010 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:48:38,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:48:38,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:48:38,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:48:38,012 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:48:38,013 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:48:38,013 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:48:38,014 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:48:38,014 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_c23633d6-1e12-41c1-988a-f5041df05e09/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23633d6-1e12-41c1-988a-f5041df05e09/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1e6ad0aca14cacb1f3fe02bd616009a97ed12a62626693737be4e470d14e12e [2023-11-19 07:48:38,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:48:38,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:48:38,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:48:38,359 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:48:38,360 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:48:38,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23633d6-1e12-41c1-988a-f5041df05e09/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix038_tso.oepc.i [2023-11-19 07:48:41,561 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:48:41,881 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:48:41,882 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23633d6-1e12-41c1-988a-f5041df05e09/sv-benchmarks/c/pthread-wmm/mix038_tso.oepc.i [2023-11-19 07:48:41,899 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23633d6-1e12-41c1-988a-f5041df05e09/bin/uautomizer-verify-uCwYo4JHxu/data/1b77614b8/70fadfd7193b46d0ba25fed959658aba/FLAGe8cc05717 [2023-11-19 07:48:41,916 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23633d6-1e12-41c1-988a-f5041df05e09/bin/uautomizer-verify-uCwYo4JHxu/data/1b77614b8/70fadfd7193b46d0ba25fed959658aba [2023-11-19 07:48:41,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:48:41,926 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:48:41,930 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:41,930 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:48:41,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:48:41,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:41" (1/1) ... [2023-11-19 07:48:41,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@234e84ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:41, skipping insertion in model container [2023-11-19 07:48:41,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:41" (1/1) ... [2023-11-19 07:48:42,031 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:48:42,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:42,448 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:48:42,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:42,561 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:42,561 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:42,569 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:48:42,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:42 WrapperNode [2023-11-19 07:48:42,570 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:42,571 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:42,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:48:42,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:48:42,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:42" (1/1) ... [2023-11-19 07:48:42,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:42" (1/1) ... [2023-11-19 07:48:42,686 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 154 [2023-11-19 07:48:42,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:42,697 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:48:42,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:48:42,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:48:42,707 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:42" (1/1) ... [2023-11-19 07:48:42,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:42" (1/1) ... [2023-11-19 07:48:42,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:42" (1/1) ... [2023-11-19 07:48:42,714 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:42" (1/1) ... [2023-11-19 07:48:42,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:42" (1/1) ... [2023-11-19 07:48:42,748 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:42" (1/1) ... [2023-11-19 07:48:42,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:42" (1/1) ... [2023-11-19 07:48:42,753 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:42" (1/1) ... [2023-11-19 07:48:42,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:48:42,772 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:48:42,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:48:42,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:48:42,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:42" (1/1) ... [2023-11-19 07:48:42,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:42,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23633d6-1e12-41c1-988a-f5041df05e09/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:42,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23633d6-1e12-41c1-988a-f5041df05e09/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:48:42,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23633d6-1e12-41c1-988a-f5041df05e09/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:48:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:48:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:48:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:48:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:48:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:48:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:48:42,855 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:48:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:48:42,856 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:48:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:48:42,856 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:48:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:48:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:48:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:48:42,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:48:42,858 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 07:48:43,034 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:48:43,037 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:48:43,480 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:48:43,700 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:48:43,700 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:48:43,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:43 BoogieIcfgContainer [2023-11-19 07:48:43,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:48:43,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:48:43,714 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:48:43,717 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:48:43,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:48:41" (1/3) ... [2023-11-19 07:48:43,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4b1354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:43, skipping insertion in model container [2023-11-19 07:48:43,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:42" (2/3) ... [2023-11-19 07:48:43,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4b1354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:43, skipping insertion in model container [2023-11-19 07:48:43,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:43" (3/3) ... [2023-11-19 07:48:43,723 INFO L112 eAbstractionObserver]: Analyzing ICFG mix038_tso.oepc.i [2023-11-19 07:48:43,735 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:48:43,746 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:48:43,747 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:48:43,747 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:48:43,821 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:48:43,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 124 transitions, 260 flow [2023-11-19 07:48:43,958 INFO L124 PetriNetUnfolderBase]: 3/121 cut-off events. [2023-11-19 07:48:43,959 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:48:43,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 121 events. 3/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-19 07:48:43,965 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 124 transitions, 260 flow [2023-11-19 07:48:43,970 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 121 transitions, 251 flow [2023-11-19 07:48:43,974 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:48:43,990 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 121 transitions, 251 flow [2023-11-19 07:48:43,993 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 121 transitions, 251 flow [2023-11-19 07:48:43,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 121 transitions, 251 flow [2023-11-19 07:48:44,045 INFO L124 PetriNetUnfolderBase]: 3/121 cut-off events. [2023-11-19 07:48:44,045 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:48:44,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 121 events. 3/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-19 07:48:44,050 INFO L119 LiptonReduction]: Number of co-enabled transitions 3082 [2023-11-19 07:48:49,360 INFO L134 LiptonReduction]: Checked pairs total: 9552 [2023-11-19 07:48:49,361 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-11-19 07:48:49,387 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:48:49,397 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;@6f1866d6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:48:49,398 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-19 07:48:49,404 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:48:49,404 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-19 07:48:49,405 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:48:49,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:49,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:48:49,406 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 07:48:49,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:49,412 INFO L85 PathProgramCache]: Analyzing trace with hash -355563779, now seen corresponding path program 1 times [2023-11-19 07:48:49,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:49,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295722579] [2023-11-19 07:48:49,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:49,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:49,811 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 07:48:49,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:49,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295722579] [2023-11-19 07:48:49,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295722579] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:49,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:49,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:48:49,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343376863] [2023-11-19 07:48:49,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:49,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:49,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:49,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:49,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:49,869 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 227 [2023-11-19 07:48:49,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 07:48:49,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:49,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 227 [2023-11-19 07:48:49,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:50,329 INFO L124 PetriNetUnfolderBase]: 929/1473 cut-off events. [2023-11-19 07:48:50,329 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-19 07:48:50,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2978 conditions, 1473 events. 929/1473 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 7156 event pairs, 294 based on Foata normal form. 0/1167 useless extension candidates. Maximal degree in co-relation 2967. Up to 1100 conditions per place. [2023-11-19 07:48:50,354 INFO L140 encePairwiseOnDemand]: 217/227 looper letters, 36 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-11-19 07:48:50,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 44 transitions, 183 flow [2023-11-19 07:48:50,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:50,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:48:50,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2023-11-19 07:48:50,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5124816446402349 [2023-11-19 07:48:50,378 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2023-11-19 07:48:50,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2023-11-19 07:48:50,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:50,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2023-11-19 07:48:50,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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 07:48:50,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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 07:48:50,425 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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 07:48:50,427 INFO L175 Difference]: Start difference. First operand has 38 places, 28 transitions, 65 flow. Second operand 3 states and 349 transitions. [2023-11-19 07:48:50,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 44 transitions, 183 flow [2023-11-19 07:48:50,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 44 transitions, 178 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:48:50,435 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 98 flow [2023-11-19 07:48:50,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2023-11-19 07:48:50,441 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2023-11-19 07:48:50,441 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 98 flow [2023-11-19 07:48:50,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 07:48:50,442 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:50,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:50,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:48:50,443 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:48:50,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:50,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1807515753, now seen corresponding path program 1 times [2023-11-19 07:48:50,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:50,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183006764] [2023-11-19 07:48:50,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:50,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:50,714 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 07:48:50,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:50,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183006764] [2023-11-19 07:48:50,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183006764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:50,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:50,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:50,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928992133] [2023-11-19 07:48:50,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:50,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:50,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:50,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:50,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:50,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 227 [2023-11-19 07:48:50,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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 07:48:50,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:50,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 227 [2023-11-19 07:48:50,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:51,085 INFO L124 PetriNetUnfolderBase]: 727/1147 cut-off events. [2023-11-19 07:48:51,085 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2023-11-19 07:48:51,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2790 conditions, 1147 events. 727/1147 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5279 event pairs, 246 based on Foata normal form. 0/1003 useless extension candidates. Maximal degree in co-relation 2779. Up to 773 conditions per place. [2023-11-19 07:48:51,095 INFO L140 encePairwiseOnDemand]: 220/227 looper letters, 33 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2023-11-19 07:48:51,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 190 flow [2023-11-19 07:48:51,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:48:51,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:48:51,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 444 transitions. [2023-11-19 07:48:51,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4889867841409692 [2023-11-19 07:48:51,099 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 444 transitions. [2023-11-19 07:48:51,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 444 transitions. [2023-11-19 07:48:51,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:51,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 444 transitions. [2023-11-19 07:48:51,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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 07:48:51,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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 07:48:51,106 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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 07:48:51,106 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 98 flow. Second operand 4 states and 444 transitions. [2023-11-19 07:48:51,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 190 flow [2023-11-19 07:48:51,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:48:51,109 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 90 flow [2023-11-19 07:48:51,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=90, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2023-11-19 07:48:51,110 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2023-11-19 07:48:51,111 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 90 flow [2023-11-19 07:48:51,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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 07:48:51,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:51,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:51,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:48:51,112 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 07:48:51,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:51,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1807515752, now seen corresponding path program 1 times [2023-11-19 07:48:51,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:51,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484379047] [2023-11-19 07:48:51,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:51,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:51,193 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 07:48:51,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:51,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484379047] [2023-11-19 07:48:51,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484379047] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:51,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:51,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:51,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902375270] [2023-11-19 07:48:51,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:51,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:51,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:51,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:51,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:51,206 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 227 [2023-11-19 07:48:51,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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 07:48:51,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:51,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 227 [2023-11-19 07:48:51,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:51,478 INFO L124 PetriNetUnfolderBase]: 576/908 cut-off events. [2023-11-19 07:48:51,478 INFO L125 PetriNetUnfolderBase]: For 338/338 co-relation queries the response was YES. [2023-11-19 07:48:51,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2185 conditions, 908 events. 576/908 cut-off events. For 338/338 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 4067 event pairs, 218 based on Foata normal form. 0/867 useless extension candidates. Maximal degree in co-relation 2173. Up to 369 conditions per place. [2023-11-19 07:48:51,486 INFO L140 encePairwiseOnDemand]: 220/227 looper letters, 41 selfloop transitions, 7 changer transitions 3/55 dead transitions. [2023-11-19 07:48:51,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 55 transitions, 258 flow [2023-11-19 07:48:51,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:48:51,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:48:51,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 458 transitions. [2023-11-19 07:48:51,489 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5044052863436124 [2023-11-19 07:48:51,490 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 458 transitions. [2023-11-19 07:48:51,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 458 transitions. [2023-11-19 07:48:51,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:51,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 458 transitions. [2023-11-19 07:48:51,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.5) internal successors, (458), 4 states have internal predecessors, (458), 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 07:48:51,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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 07:48:51,496 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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 07:48:51,496 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 90 flow. Second operand 4 states and 458 transitions. [2023-11-19 07:48:51,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 55 transitions, 258 flow [2023-11-19 07:48:51,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 55 transitions, 253 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:48:51,500 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 111 flow [2023-11-19 07:48:51,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, 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=111, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2023-11-19 07:48:51,501 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2023-11-19 07:48:51,502 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 111 flow [2023-11-19 07:48:51,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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 07:48:51,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:51,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:51,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:48:51,507 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 07:48:51,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:51,508 INFO L85 PathProgramCache]: Analyzing trace with hash 751221372, now seen corresponding path program 1 times [2023-11-19 07:48:51,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:51,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935627957] [2023-11-19 07:48:51,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:51,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:51,729 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 07:48:51,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:51,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935627957] [2023-11-19 07:48:51,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935627957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:51,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:51,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:48:51,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103804256] [2023-11-19 07:48:51,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:51,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:48:51,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:51,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:48:51,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:51,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 227 [2023-11-19 07:48:51,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 111 flow. Second operand has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 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 07:48:51,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:51,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 227 [2023-11-19 07:48:51,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:52,021 INFO L124 PetriNetUnfolderBase]: 556/872 cut-off events. [2023-11-19 07:48:52,022 INFO L125 PetriNetUnfolderBase]: For 690/690 co-relation queries the response was YES. [2023-11-19 07:48:52,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2364 conditions, 872 events. 556/872 cut-off events. For 690/690 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3957 event pairs, 218 based on Foata normal form. 12/855 useless extension candidates. Maximal degree in co-relation 2351. Up to 369 conditions per place. [2023-11-19 07:48:52,027 INFO L140 encePairwiseOnDemand]: 220/227 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2023-11-19 07:48:52,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 237 flow [2023-11-19 07:48:52,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:48:52,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:48:52,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 553 transitions. [2023-11-19 07:48:52,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48722466960352423 [2023-11-19 07:48:52,030 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 553 transitions. [2023-11-19 07:48:52,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 553 transitions. [2023-11-19 07:48:52,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:52,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 553 transitions. [2023-11-19 07:48:52,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 110.6) internal successors, (553), 5 states have internal predecessors, (553), 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 07:48:52,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 227.0) internal successors, (1362), 6 states have internal predecessors, (1362), 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 07:48:52,038 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 227.0) internal successors, (1362), 6 states have internal predecessors, (1362), 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 07:48:52,038 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 111 flow. Second operand 5 states and 553 transitions. [2023-11-19 07:48:52,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 237 flow [2023-11-19 07:48:52,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 49 transitions, 213 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-19 07:48:52,044 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-11-19 07:48:52,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-11-19 07:48:52,046 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2023-11-19 07:48:52,046 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-11-19 07:48:52,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 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 07:48:52,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-19 07:48:52,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-19 07:48:52,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-19 07:48:52,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-19 07:48:52,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-19 07:48:52,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-19 07:48:52,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-19 07:48:52,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-19 07:48:52,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-19 07:48:52,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-19 07:48:52,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-19 07:48:52,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-19 07:48:52,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-19 07:48:52,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-19 07:48:52,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-19 07:48:52,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:48:52,057 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 07:48:52,063 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:48:52,063 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:48:52,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:48:52 BasicIcfg [2023-11-19 07:48:52,073 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:48:52,074 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:48:52,079 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:48:52,080 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:48:52,081 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:43" (3/4) ... [2023-11-19 07:48:52,083 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:48:52,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:48:52,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:48:52,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 07:48:52,095 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2023-11-19 07:48:52,095 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 07:48:52,096 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:48:52,096 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:48:52,215 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23633d6-1e12-41c1-988a-f5041df05e09/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:48:52,216 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23633d6-1e12-41c1-988a-f5041df05e09/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:48:52,216 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:48:52,217 INFO L158 Benchmark]: Toolchain (without parser) took 10290.95ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 107.9MB in the beginning and 67.3MB in the end (delta: 40.7MB). Peak memory consumption was 105.2MB. Max. memory is 16.1GB. [2023-11-19 07:48:52,217 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 109.1MB. Free memory was 82.6MB in the beginning and 82.5MB in the end (delta: 98.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:48:52,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 640.80ms. Allocated memory is still 146.8MB. Free memory was 107.9MB in the beginning and 84.2MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:48:52,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.90ms. Allocated memory is still 146.8MB. Free memory was 84.2MB in the beginning and 117.5MB in the end (delta: -33.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2023-11-19 07:48:52,218 INFO L158 Benchmark]: Boogie Preprocessor took 75.00ms. Allocated memory is still 146.8MB. Free memory was 117.5MB in the beginning and 115.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:48:52,218 INFO L158 Benchmark]: RCFGBuilder took 936.22ms. Allocated memory is still 146.8MB. Free memory was 115.3MB in the beginning and 75.7MB in the end (delta: 39.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-19 07:48:52,219 INFO L158 Benchmark]: TraceAbstraction took 8359.75ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 75.1MB in the beginning and 72.6MB in the end (delta: 2.5MB). Peak memory consumption was 69.4MB. Max. memory is 16.1GB. [2023-11-19 07:48:52,219 INFO L158 Benchmark]: Witness Printer took 142.36ms. Allocated memory is still 211.8MB. Free memory was 72.6MB in the beginning and 67.3MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:48:52,222 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 109.1MB. Free memory was 82.6MB in the beginning and 82.5MB in the end (delta: 98.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 640.80ms. Allocated memory is still 146.8MB. Free memory was 107.9MB in the beginning and 84.2MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.90ms. Allocated memory is still 146.8MB. Free memory was 84.2MB in the beginning and 117.5MB in the end (delta: -33.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.00ms. Allocated memory is still 146.8MB. Free memory was 117.5MB in the beginning and 115.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 936.22ms. Allocated memory is still 146.8MB. Free memory was 115.3MB in the beginning and 75.7MB in the end (delta: 39.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8359.75ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 75.1MB in the beginning and 72.6MB in the end (delta: 2.5MB). Peak memory consumption was 69.4MB. Max. memory is 16.1GB. * Witness Printer took 142.36ms. Allocated memory is still 211.8MB. Free memory was 72.6MB in the beginning and 67.3MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.4s, 128 PlacesBefore, 38 PlacesAfterwards, 121 TransitionsBefore, 28 TransitionsAfterwards, 3082 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 3 ChoiceCompositions, 103 TotalNumberOfCompositions, 9552 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3495, independent: 3211, independent conditional: 0, independent unconditional: 3211, dependent: 284, dependent conditional: 0, dependent unconditional: 284, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1692, independent: 1628, independent conditional: 0, independent unconditional: 1628, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3495, independent: 1583, independent conditional: 0, independent unconditional: 1583, dependent: 220, dependent conditional: 0, dependent unconditional: 220, unknown: 1692, unknown conditional: 0, unknown unconditional: 1692] , Statistics on independence cache: Total cache size (in pairs): 150, Positive cache size: 127, Positive conditional cache size: 0, Positive unconditional cache size: 127, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: 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, 157 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: 8.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 242 IncrementalHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 5 mSDtfsCounter, 242 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:48:52,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c23633d6-1e12-41c1-988a-f5041df05e09/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