./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix003.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/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_861888c9-c816-4413-ba66-8097338111b0/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix003.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/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_861888c9-c816-4413-ba66-8097338111b0/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 929f303f9fec34ceeaa6ac57212036dd2a2b082a21c34f6b9e4e20069df7c744 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:53:56,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:53:56,287 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:53:56,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:53:56,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:53:56,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:53:56,344 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:53:56,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:53:56,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:53:56,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:53:56,355 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:53:56,355 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:53:56,356 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:53:56,358 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:53:56,359 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:53:56,359 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:53:56,360 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:53:56,360 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:53:56,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:53:56,361 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:53:56,361 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:53:56,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:53:56,363 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:53:56,363 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:53:56,364 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:53:56,365 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:53:56,365 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:53:56,366 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:53:56,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:53:56,367 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:53:56,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:53:56,370 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:53:56,370 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:53:56,370 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:53:56,371 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:53:56,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:53:56,371 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:53:56,372 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:53:56,372 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:53:56,372 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:53:56,373 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:53:56,373 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_861888c9-c816-4413-ba66-8097338111b0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 929f303f9fec34ceeaa6ac57212036dd2a2b082a21c34f6b9e4e20069df7c744 [2023-11-19 07:53:56,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:53:56,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:53:56,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:53:56,831 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:53:56,832 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:53:56,834 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix003.oepc.i [2023-11-19 07:54:00,521 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:54:00,852 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:54:00,858 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/sv-benchmarks/c/pthread-wmm/mix003.oepc.i [2023-11-19 07:54:00,886 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/bin/uautomizer-verify-uCwYo4JHxu/data/6ad328be3/252dd2ad0ce34724abbc7b85578fb2c4/FLAGf21764788 [2023-11-19 07:54:00,901 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/bin/uautomizer-verify-uCwYo4JHxu/data/6ad328be3/252dd2ad0ce34724abbc7b85578fb2c4 [2023-11-19 07:54:00,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:54:00,906 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:54:00,907 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:00,908 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:54:00,914 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:54:00,915 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:00" (1/1) ... [2023-11-19 07:54:00,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f9f4325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:00, skipping insertion in model container [2023-11-19 07:54:00,917 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:00" (1/1) ... [2023-11-19 07:54:00,973 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:54:01,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:01,577 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:54:01,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:01,722 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:54:01,722 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:54:01,730 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:54:01,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:01 WrapperNode [2023-11-19 07:54:01,731 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:01,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:01,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:54:01,738 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:54:01,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:01" (1/1) ... [2023-11-19 07:54:01,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:01" (1/1) ... [2023-11-19 07:54:01,848 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 138 [2023-11-19 07:54:01,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:01,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:54:01,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:54:01,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:54:01,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:01" (1/1) ... [2023-11-19 07:54:01,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:01" (1/1) ... [2023-11-19 07:54:01,865 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:01" (1/1) ... [2023-11-19 07:54:01,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:01" (1/1) ... [2023-11-19 07:54:01,877 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:01" (1/1) ... [2023-11-19 07:54:01,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:01" (1/1) ... [2023-11-19 07:54:01,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:01" (1/1) ... [2023-11-19 07:54:01,885 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:01" (1/1) ... [2023-11-19 07:54:01,890 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:54:01,891 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:54:01,891 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:54:01,891 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:54:01,892 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:01" (1/1) ... [2023-11-19 07:54:01,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:01,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:01,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:01,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:54:01,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:54:01,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:54:01,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:54:01,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:54:01,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:54:01,990 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:54:01,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:54:01,990 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:54:01,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:54:01,991 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:54:01,991 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:54:01,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:54:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:54:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:54:01,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:54:01,995 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 07:54:02,173 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:54:02,175 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:54:02,598 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:54:02,924 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:54:02,925 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:54:02,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:02 BoogieIcfgContainer [2023-11-19 07:54:02,933 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:54:02,938 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:54:02,938 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:54:02,942 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:54:02,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:54:00" (1/3) ... [2023-11-19 07:54:02,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600dd6eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:02, skipping insertion in model container [2023-11-19 07:54:02,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:01" (2/3) ... [2023-11-19 07:54:02,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600dd6eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:02, skipping insertion in model container [2023-11-19 07:54:02,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:02" (3/3) ... [2023-11-19 07:54:02,947 INFO L112 eAbstractionObserver]: Analyzing ICFG mix003.oepc.i [2023-11-19 07:54:02,959 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:54:02,973 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:54:02,973 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:54:02,974 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:54:03,073 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:54:03,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 125 transitions, 262 flow [2023-11-19 07:54:03,237 INFO L124 PetriNetUnfolderBase]: 3/122 cut-off events. [2023-11-19 07:54:03,237 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:54:03,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 122 events. 3/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-19 07:54:03,248 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 125 transitions, 262 flow [2023-11-19 07:54:03,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 122 transitions, 253 flow [2023-11-19 07:54:03,264 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:54:03,291 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 122 transitions, 253 flow [2023-11-19 07:54:03,297 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 122 transitions, 253 flow [2023-11-19 07:54:03,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 122 transitions, 253 flow [2023-11-19 07:54:03,347 INFO L124 PetriNetUnfolderBase]: 3/122 cut-off events. [2023-11-19 07:54:03,348 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:54:03,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 122 events. 3/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-19 07:54:03,353 INFO L119 LiptonReduction]: Number of co-enabled transitions 3098 [2023-11-19 07:54:08,720 INFO L134 LiptonReduction]: Checked pairs total: 9972 [2023-11-19 07:54:08,721 INFO L136 LiptonReduction]: Total number of compositions: 104 [2023-11-19 07:54:08,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:54:08,768 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;@66ac9a74, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:54:08,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-19 07:54:08,783 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:54:08,783 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-19 07:54:08,784 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:54:08,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:54:08,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:54:08,786 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 07:54:08,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:08,794 INFO L85 PathProgramCache]: Analyzing trace with hash -325920741, now seen corresponding path program 1 times [2023-11-19 07:54:08,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:08,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985602975] [2023-11-19 07:54:08,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:08,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:09,375 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 07:54:09,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:09,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985602975] [2023-11-19 07:54:09,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985602975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:09,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:09,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:54:09,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45494779] [2023-11-19 07:54:09,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:09,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:54:09,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:09,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:54:09,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:09,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 229 [2023-11-19 07:54:09,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 07:54:09,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:54:09,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 229 [2023-11-19 07:54:09,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:54:10,130 INFO L124 PetriNetUnfolderBase]: 1399/2088 cut-off events. [2023-11-19 07:54:10,131 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-19 07:54:10,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4215 conditions, 2088 events. 1399/2088 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 9905 event pairs, 1399 based on Foata normal form. 0/1695 useless extension candidates. Maximal degree in co-relation 4204. Up to 2060 conditions per place. [2023-11-19 07:54:10,164 INFO L140 encePairwiseOnDemand]: 224/229 looper letters, 21 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-11-19 07:54:10,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 26 transitions, 105 flow [2023-11-19 07:54:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:54:10,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:54:10,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2023-11-19 07:54:10,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48326055312954874 [2023-11-19 07:54:10,191 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 332 transitions. [2023-11-19 07:54:10,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 332 transitions. [2023-11-19 07:54:10,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:54:10,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 332 transitions. [2023-11-19 07:54:10,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 07:54:10,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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 07:54:10,215 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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 07:54:10,218 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 69 flow. Second operand 3 states and 332 transitions. [2023-11-19 07:54:10,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 26 transitions, 105 flow [2023-11-19 07:54:10,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 26 transitions, 102 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:54:10,226 INFO L231 Difference]: Finished difference. Result has 35 places, 26 transitions, 60 flow [2023-11-19 07:54:10,229 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=35, PETRI_TRANSITIONS=26} [2023-11-19 07:54:10,234 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -4 predicate places. [2023-11-19 07:54:10,234 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 26 transitions, 60 flow [2023-11-19 07:54:10,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 07:54:10,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:54:10,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:54:10,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:54:10,236 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:54:10,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:10,237 INFO L85 PathProgramCache]: Analyzing trace with hash -325920740, now seen corresponding path program 1 times [2023-11-19 07:54:10,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:10,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662799240] [2023-11-19 07:54:10,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:10,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:10,387 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 07:54:10,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:10,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662799240] [2023-11-19 07:54:10,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662799240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:10,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:10,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:54:10,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836166861] [2023-11-19 07:54:10,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:10,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:54:10,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:10,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:54:10,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:10,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 229 [2023-11-19 07:54:10,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 07:54:10,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:54:10,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 229 [2023-11-19 07:54:10,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:54:10,797 INFO L124 PetriNetUnfolderBase]: 885/1376 cut-off events. [2023-11-19 07:54:10,798 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:54:10,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2780 conditions, 1376 events. 885/1376 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 6518 event pairs, 321 based on Foata normal form. 0/1236 useless extension candidates. Maximal degree in co-relation 2774. Up to 893 conditions per place. [2023-11-19 07:54:10,813 INFO L140 encePairwiseOnDemand]: 222/229 looper letters, 35 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2023-11-19 07:54:10,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 43 transitions, 176 flow [2023-11-19 07:54:10,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:54:10,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:54:10,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2023-11-19 07:54:10,819 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5065502183406113 [2023-11-19 07:54:10,819 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 348 transitions. [2023-11-19 07:54:10,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 348 transitions. [2023-11-19 07:54:10,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:54:10,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 348 transitions. [2023-11-19 07:54:10,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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 07:54:10,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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 07:54:10,834 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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 07:54:10,834 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 60 flow. Second operand 3 states and 348 transitions. [2023-11-19 07:54:10,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 43 transitions, 176 flow [2023-11-19 07:54:10,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 43 transitions, 175 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:54:10,840 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 89 flow [2023-11-19 07:54:10,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2023-11-19 07:54:10,841 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -2 predicate places. [2023-11-19 07:54:10,849 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 89 flow [2023-11-19 07:54:10,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 07:54:10,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:54:10,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:10,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:54:10,851 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 07:54:10,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:10,852 INFO L85 PathProgramCache]: Analyzing trace with hash 661856147, now seen corresponding path program 1 times [2023-11-19 07:54:10,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:10,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341627761] [2023-11-19 07:54:10,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:10,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:11,041 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 07:54:11,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:11,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341627761] [2023-11-19 07:54:11,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341627761] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:11,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:11,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:54:11,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576155413] [2023-11-19 07:54:11,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:11,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:54:11,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:11,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:54:11,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:54:11,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 229 [2023-11-19 07:54:11,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 89 flow. Second operand has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 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 07:54:11,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:54:11,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 229 [2023-11-19 07:54:11,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:54:11,446 INFO L124 PetriNetUnfolderBase]: 720/1115 cut-off events. [2023-11-19 07:54:11,447 INFO L125 PetriNetUnfolderBase]: For 103/103 co-relation queries the response was YES. [2023-11-19 07:54:11,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2656 conditions, 1115 events. 720/1115 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5162 event pairs, 293 based on Foata normal form. 0/1083 useless extension candidates. Maximal degree in co-relation 2648. Up to 462 conditions per place. [2023-11-19 07:54:11,459 INFO L140 encePairwiseOnDemand]: 222/229 looper letters, 44 selfloop transitions, 7 changer transitions 3/58 dead transitions. [2023-11-19 07:54:11,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 58 transitions, 267 flow [2023-11-19 07:54:11,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:54:11,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:54:11,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 465 transitions. [2023-11-19 07:54:11,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.50764192139738 [2023-11-19 07:54:11,463 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 465 transitions. [2023-11-19 07:54:11,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 465 transitions. [2023-11-19 07:54:11,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:54:11,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 465 transitions. [2023-11-19 07:54:11,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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 07:54:11,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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 07:54:11,470 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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 07:54:11,471 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 89 flow. Second operand 4 states and 465 transitions. [2023-11-19 07:54:11,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 58 transitions, 267 flow [2023-11-19 07:54:11,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 58 transitions, 263 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:54:11,476 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 111 flow [2023-11-19 07:54:11,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=111, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2023-11-19 07:54:11,478 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-11-19 07:54:11,479 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 111 flow [2023-11-19 07:54:11,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 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 07:54:11,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:54:11,480 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:11,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:54:11,485 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 07:54:11,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:11,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1917586894, now seen corresponding path program 1 times [2023-11-19 07:54:11,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:11,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146184502] [2023-11-19 07:54:11,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:11,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:11,725 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 07:54:11,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:11,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146184502] [2023-11-19 07:54:11,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146184502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:11,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:11,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:54:11,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885882898] [2023-11-19 07:54:11,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:11,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:54:11,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:11,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:54:11,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:54:11,738 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 229 [2023-11-19 07:54:11,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 111 flow. Second operand has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 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 07:54:11,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:54:11,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 229 [2023-11-19 07:54:11,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:54:12,112 INFO L124 PetriNetUnfolderBase]: 700/1079 cut-off events. [2023-11-19 07:54:12,113 INFO L125 PetriNetUnfolderBase]: For 747/747 co-relation queries the response was YES. [2023-11-19 07:54:12,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2730 conditions, 1079 events. 700/1079 cut-off events. For 747/747 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5003 event pairs, 293 based on Foata normal form. 12/1071 useless extension candidates. Maximal degree in co-relation 2720. Up to 462 conditions per place. [2023-11-19 07:54:12,119 INFO L140 encePairwiseOnDemand]: 222/229 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2023-11-19 07:54:12,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 52 transitions, 247 flow [2023-11-19 07:54:12,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:54:12,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:54:12,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 561 transitions. [2023-11-19 07:54:12,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48995633187772925 [2023-11-19 07:54:12,123 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 561 transitions. [2023-11-19 07:54:12,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 561 transitions. [2023-11-19 07:54:12,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:54:12,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 561 transitions. [2023-11-19 07:54:12,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 112.2) internal successors, (561), 5 states have internal predecessors, (561), 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 07:54:12,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 229.0) internal successors, (1374), 6 states have internal predecessors, (1374), 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 07:54:12,132 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 229.0) internal successors, (1374), 6 states have internal predecessors, (1374), 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 07:54:12,132 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 111 flow. Second operand 5 states and 561 transitions. [2023-11-19 07:54:12,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 52 transitions, 247 flow [2023-11-19 07:54:12,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 52 transitions, 223 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-19 07:54:12,139 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2023-11-19 07:54:12,140 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2023-11-19 07:54:12,140 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -2 predicate places. [2023-11-19 07:54:12,141 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2023-11-19 07:54:12,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 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 07:54:12,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-19 07:54:12,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-19 07:54:12,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-19 07:54:12,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-19 07:54:12,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-19 07:54:12,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-19 07:54:12,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-19 07:54:12,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-19 07:54:12,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-19 07:54:12,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-19 07:54:12,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-19 07:54:12,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-19 07:54:12,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-19 07:54:12,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-19 07:54:12,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-19 07:54:12,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:54:12,148 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 07:54:12,158 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:54:12,158 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:54:12,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:54:12 BasicIcfg [2023-11-19 07:54:12,169 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:54:12,172 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:54:12,172 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:54:12,172 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:54:12,173 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:02" (3/4) ... [2023-11-19 07:54:12,175 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:54:12,179 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:54:12,179 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:54:12,179 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 07:54:12,187 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-19 07:54:12,188 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 07:54:12,188 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:54:12,189 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:54:12,322 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:54:12,323 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:54:12,323 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:54:12,324 INFO L158 Benchmark]: Toolchain (without parser) took 11417.98ms. Allocated memory was 146.8MB in the beginning and 239.1MB in the end (delta: 92.3MB). Free memory was 99.5MB in the beginning and 146.0MB in the end (delta: -46.5MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2023-11-19 07:54:12,324 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 102.8MB. Free memory was 49.8MB in the beginning and 49.6MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:54:12,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 824.18ms. Allocated memory is still 146.8MB. Free memory was 99.5MB in the beginning and 76.1MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:54:12,325 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.33ms. Allocated memory is still 146.8MB. Free memory was 76.1MB in the beginning and 73.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:54:12,325 INFO L158 Benchmark]: Boogie Preprocessor took 41.03ms. Allocated memory is still 146.8MB. Free memory was 73.6MB in the beginning and 71.6MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:54:12,326 INFO L158 Benchmark]: RCFGBuilder took 1043.06ms. Allocated memory was 146.8MB in the beginning and 199.2MB in the end (delta: 52.4MB). Free memory was 71.6MB in the beginning and 143.6MB in the end (delta: -72.1MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2023-11-19 07:54:12,327 INFO L158 Benchmark]: TraceAbstraction took 9233.32ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 142.7MB in the beginning and 151.2MB in the end (delta: -8.5MB). Peak memory consumption was 120.5MB. Max. memory is 16.1GB. [2023-11-19 07:54:12,327 INFO L158 Benchmark]: Witness Printer took 151.23ms. Allocated memory is still 239.1MB. Free memory was 151.2MB in the beginning and 146.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:54:12,330 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 102.8MB. Free memory was 49.8MB in the beginning and 49.6MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 824.18ms. Allocated memory is still 146.8MB. Free memory was 99.5MB in the beginning and 76.1MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.33ms. Allocated memory is still 146.8MB. Free memory was 76.1MB in the beginning and 73.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.03ms. Allocated memory is still 146.8MB. Free memory was 73.6MB in the beginning and 71.6MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1043.06ms. Allocated memory was 146.8MB in the beginning and 199.2MB in the end (delta: 52.4MB). Free memory was 71.6MB in the beginning and 143.6MB in the end (delta: -72.1MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * TraceAbstraction took 9233.32ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 142.7MB in the beginning and 151.2MB in the end (delta: -8.5MB). Peak memory consumption was 120.5MB. Max. memory is 16.1GB. * Witness Printer took 151.23ms. Allocated memory is still 239.1MB. Free memory was 151.2MB in the beginning and 146.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.4s, 129 PlacesBefore, 39 PlacesAfterwards, 122 TransitionsBefore, 30 TransitionsAfterwards, 3098 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 104 TotalNumberOfCompositions, 9972 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4150, independent: 3884, independent conditional: 0, independent unconditional: 3884, dependent: 266, dependent conditional: 0, dependent unconditional: 266, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1735, independent: 1672, independent conditional: 0, independent unconditional: 1672, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4150, independent: 2212, independent conditional: 0, independent unconditional: 2212, dependent: 203, dependent conditional: 0, dependent unconditional: 203, unknown: 1735, unknown conditional: 0, unknown unconditional: 1735] , Statistics on independence cache: Total cache size (in pairs): 203, Positive cache size: 176, Positive conditional cache size: 0, Positive unconditional cache size: 176, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, 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: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 830]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 830]: 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, 158 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: 9.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 188 IncrementalHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 5 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=111occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 123 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 07:54:12,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861888c9-c816-4413-ba66-8097338111b0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE