./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-lit/qw2004-2b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004-2b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl --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 f17f6182d2330561fe6717b6a061d0dded698483f9e32b37a3b36e1144855a29 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:15:49,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:15:50,024 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:15:50,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:15:50,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:15:50,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:15:50,063 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:15:50,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:15:50,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:15:50,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:15:50,066 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:15:50,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:15:50,068 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:15:50,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:15:50,069 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:15:50,070 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:15:50,070 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:15:50,071 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:15:50,072 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:15:50,072 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:15:50,073 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:15:50,074 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:15:50,075 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:15:50,075 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:15:50,076 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:15:50,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:15:50,077 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:15:50,078 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:15:50,078 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:15:50,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:15:50,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:50,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:15:50,081 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:15:50,081 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:15:50,081 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:15:50,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:15:50,082 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:15:50,082 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:15:50,083 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:15:50,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:15:50,084 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:15:50,084 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_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f17f6182d2330561fe6717b6a061d0dded698483f9e32b37a3b36e1144855a29 [2023-11-12 02:15:50,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:15:50,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:15:50,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:15:50,472 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:15:50,473 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:15:50,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-lit/qw2004-2b.i [2023-11-12 02:15:53,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:15:54,143 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:15:54,144 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/sv-benchmarks/c/pthread-lit/qw2004-2b.i [2023-11-12 02:15:54,168 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/data/b38e106c9/d2be76b2788b482f96405c918acae11e/FLAGab4c145a6 [2023-11-12 02:15:54,185 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/data/b38e106c9/d2be76b2788b482f96405c918acae11e [2023-11-12 02:15:54,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:15:54,190 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:15:54,191 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:54,192 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:15:54,198 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:15:54,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:54" (1/1) ... [2023-11-12 02:15:54,200 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd3c8fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:54, skipping insertion in model container [2023-11-12 02:15:54,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:54" (1/1) ... [2023-11-12 02:15:54,253 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:15:54,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:54,719 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:15:54,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:54,867 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:54,867 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:54,877 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:15:54,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:54 WrapperNode [2023-11-12 02:15:54,878 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:54,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:54,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:15:54,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:15:54,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:54" (1/1) ... [2023-11-12 02:15:54,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:54" (1/1) ... [2023-11-12 02:15:54,974 INFO L138 Inliner]: procedures = 175, calls = 37, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 127 [2023-11-12 02:15:54,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:54,976 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:15:54,976 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:15:54,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:15:54,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:54" (1/1) ... [2023-11-12 02:15:54,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:54" (1/1) ... [2023-11-12 02:15:55,010 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:54" (1/1) ... [2023-11-12 02:15:55,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:54" (1/1) ... [2023-11-12 02:15:55,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:54" (1/1) ... [2023-11-12 02:15:55,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:54" (1/1) ... [2023-11-12 02:15:55,041 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:54" (1/1) ... [2023-11-12 02:15:55,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:54" (1/1) ... [2023-11-12 02:15:55,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:15:55,052 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:15:55,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:15:55,058 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:15:55,059 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:54" (1/1) ... [2023-11-12 02:15:55,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:55,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:55,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:15:55,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:15:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2023-11-12 02:15:55,142 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2023-11-12 02:15:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:15:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:15:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:15:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:15:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:15:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:15:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:15:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:15:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:15:55,146 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:15:55,305 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:15:55,307 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:55,567 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:55,627 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:55,628 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:15:55,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:55 BoogieIcfgContainer [2023-11-12 02:15:55,638 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:55,641 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:55,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:55,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:55,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:15:54" (1/3) ... [2023-11-12 02:15:55,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d40ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:55, skipping insertion in model container [2023-11-12 02:15:55,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:54" (2/3) ... [2023-11-12 02:15:55,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d40ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:55, skipping insertion in model container [2023-11-12 02:15:55,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:55" (3/3) ... [2023-11-12 02:15:55,648 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-2b.i [2023-11-12 02:15:55,659 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:15:55,672 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:55,673 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-12 02:15:55,673 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:15:55,771 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:15:55,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 123 transitions, 250 flow [2023-11-12 02:15:55,915 INFO L124 PetriNetUnfolderBase]: 7/122 cut-off events. [2023-11-12 02:15:55,916 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:15:55,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 122 events. 7/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 172 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2023-11-12 02:15:55,927 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 123 transitions, 250 flow [2023-11-12 02:15:55,935 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 122 transitions, 247 flow [2023-11-12 02:15:55,940 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:15:55,954 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 122 transitions, 247 flow [2023-11-12 02:15:55,957 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 122 transitions, 247 flow [2023-11-12 02:15:55,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 122 transitions, 247 flow [2023-11-12 02:15:56,001 INFO L124 PetriNetUnfolderBase]: 7/122 cut-off events. [2023-11-12 02:15:56,002 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:15:56,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 122 events. 7/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 172 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2023-11-12 02:15:56,009 INFO L119 LiptonReduction]: Number of co-enabled transitions 4340 [2023-11-12 02:15:59,975 INFO L134 LiptonReduction]: Checked pairs total: 6093 [2023-11-12 02:15:59,975 INFO L136 LiptonReduction]: Total number of compositions: 147 [2023-11-12 02:16:00,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:16:00,028 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;@7f5c5be9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:16:00,029 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-12 02:16:00,035 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:16:00,036 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-12 02:16:00,036 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:16:00,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:00,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:16:00,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:16:00,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:00,046 INFO L85 PathProgramCache]: Analyzing trace with hash 15593478, now seen corresponding path program 1 times [2023-11-12 02:16:00,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:00,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345705363] [2023-11-12 02:16:00,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:00,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:00,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:00,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:00,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345705363] [2023-11-12 02:16:00,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345705363] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:00,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:00,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:16:00,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178597890] [2023-11-12 02:16:00,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:00,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:16:00,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:00,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:16:00,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:16:00,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 270 [2023-11-12 02:16:00,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 22 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2023-11-12 02:16:00,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:00,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 270 [2023-11-12 02:16:00,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:00,601 INFO L124 PetriNetUnfolderBase]: 79/153 cut-off events. [2023-11-12 02:16:00,601 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:16:00,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 153 events. 79/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 534 event pairs, 29 based on Foata normal form. 2/98 useless extension candidates. Maximal degree in co-relation 301. Up to 141 conditions per place. [2023-11-12 02:16:00,604 INFO L140 encePairwiseOnDemand]: 259/270 looper letters, 24 selfloop transitions, 4 changer transitions 0/29 dead transitions. [2023-11-12 02:16:00,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 29 transitions, 117 flow [2023-11-12 02:16:00,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:16:00,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:16:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 359 transitions. [2023-11-12 02:16:00,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44320987654320987 [2023-11-12 02:16:00,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 359 transitions. [2023-11-12 02:16:00,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 359 transitions. [2023-11-12 02:16:00,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:00,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 359 transitions. [2023-11-12 02:16:00,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2023-11-12 02:16:00,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 270.0) internal successors, (1080), 4 states have internal predecessors, (1080), 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) [2023-11-12 02:16:00,648 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 270.0) internal successors, (1080), 4 states have internal predecessors, (1080), 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) [2023-11-12 02:16:00,651 INFO L175 Difference]: Start difference. First operand has 23 places, 22 transitions, 47 flow. Second operand 3 states and 359 transitions. [2023-11-12 02:16:00,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 29 transitions, 117 flow [2023-11-12 02:16:00,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 29 transitions, 116 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:16:00,657 INFO L231 Difference]: Finished difference. Result has 25 places, 25 transitions, 84 flow [2023-11-12 02:16:00,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=25, PETRI_TRANSITIONS=25} [2023-11-12 02:16:00,663 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2023-11-12 02:16:00,664 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 25 transitions, 84 flow [2023-11-12 02:16:00,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2023-11-12 02:16:00,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:00,665 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:16:00,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:16:00,666 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:16:00,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:00,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2101738708, now seen corresponding path program 1 times [2023-11-12 02:16:00,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:00,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481211338] [2023-11-12 02:16:00,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:00,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:00,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:00,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:00,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481211338] [2023-11-12 02:16:00,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481211338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:00,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:00,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:16:00,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612549732] [2023-11-12 02:16:00,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:00,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:16:00,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:00,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:16:00,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:16:00,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 270 [2023-11-12 02:16:00,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 25 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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) [2023-11-12 02:16:00,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:00,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 270 [2023-11-12 02:16:00,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:00,937 INFO L124 PetriNetUnfolderBase]: 85/163 cut-off events. [2023-11-12 02:16:00,937 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-12 02:16:00,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 163 events. 85/163 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 534 event pairs, 13 based on Foata normal form. 4/110 useless extension candidates. Maximal degree in co-relation 401. Up to 113 conditions per place. [2023-11-12 02:16:00,940 INFO L140 encePairwiseOnDemand]: 259/270 looper letters, 22 selfloop transitions, 4 changer transitions 10/37 dead transitions. [2023-11-12 02:16:00,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 37 transitions, 182 flow [2023-11-12 02:16:00,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:16:00,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:16:00,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 474 transitions. [2023-11-12 02:16:00,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4388888888888889 [2023-11-12 02:16:00,949 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 474 transitions. [2023-11-12 02:16:00,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 474 transitions. [2023-11-12 02:16:00,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:00,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 474 transitions. [2023-11-12 02:16:00,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 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) [2023-11-12 02:16:00,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 270.0) internal successors, (1350), 5 states have internal predecessors, (1350), 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) [2023-11-12 02:16:00,961 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 270.0) internal successors, (1350), 5 states have internal predecessors, (1350), 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) [2023-11-12 02:16:00,962 INFO L175 Difference]: Start difference. First operand has 25 places, 25 transitions, 84 flow. Second operand 4 states and 474 transitions. [2023-11-12 02:16:00,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 37 transitions, 182 flow [2023-11-12 02:16:00,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 37 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:16:00,969 INFO L231 Difference]: Finished difference. Result has 26 places, 21 transitions, 90 flow [2023-11-12 02:16:00,969 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=90, PETRI_PLACES=26, PETRI_TRANSITIONS=21} [2023-11-12 02:16:00,970 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 3 predicate places. [2023-11-12 02:16:00,971 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 21 transitions, 90 flow [2023-11-12 02:16:00,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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) [2023-11-12 02:16:00,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:00,972 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:00,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:16:00,981 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:16:00,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:00,983 INFO L85 PathProgramCache]: Analyzing trace with hash 729162764, now seen corresponding path program 1 times [2023-11-12 02:16:00,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:00,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622060706] [2023-11-12 02:16:00,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:00,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:01,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:01,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:01,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622060706] [2023-11-12 02:16:01,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622060706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:01,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:01,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:16:01,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804910844] [2023-11-12 02:16:01,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:01,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:16:01,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:01,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:16:01,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:16:01,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 270 [2023-11-12 02:16:01,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 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) [2023-11-12 02:16:01,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:01,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 270 [2023-11-12 02:16:01,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:01,348 INFO L124 PetriNetUnfolderBase]: 78/156 cut-off events. [2023-11-12 02:16:01,348 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-12 02:16:01,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 156 events. 78/156 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 540 event pairs, 15 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 440. Up to 98 conditions per place. [2023-11-12 02:16:01,358 INFO L140 encePairwiseOnDemand]: 260/270 looper letters, 29 selfloop transitions, 11 changer transitions 3/43 dead transitions. [2023-11-12 02:16:01,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 43 transitions, 250 flow [2023-11-12 02:16:01,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:16:01,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:16:01,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 663 transitions. [2023-11-12 02:16:01,362 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40925925925925927 [2023-11-12 02:16:01,362 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 663 transitions. [2023-11-12 02:16:01,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 663 transitions. [2023-11-12 02:16:01,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:01,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 663 transitions. [2023-11-12 02:16:01,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 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) [2023-11-12 02:16:01,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 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) [2023-11-12 02:16:01,372 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 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) [2023-11-12 02:16:01,373 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 90 flow. Second operand 6 states and 663 transitions. [2023-11-12 02:16:01,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 43 transitions, 250 flow [2023-11-12 02:16:01,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 43 transitions, 238 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-12 02:16:01,379 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 159 flow [2023-11-12 02:16:01,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=159, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2023-11-12 02:16:01,381 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 10 predicate places. [2023-11-12 02:16:01,381 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 159 flow [2023-11-12 02:16:01,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 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) [2023-11-12 02:16:01,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:01,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:01,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:16:01,389 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:16:01,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:01,390 INFO L85 PathProgramCache]: Analyzing trace with hash 729162765, now seen corresponding path program 1 times [2023-11-12 02:16:01,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:01,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651966611] [2023-11-12 02:16:01,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:01,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:01,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:01,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:01,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651966611] [2023-11-12 02:16:01,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651966611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:01,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:01,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:16:01,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54585440] [2023-11-12 02:16:01,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:01,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:16:01,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:01,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:16:01,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:16:01,554 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 270 [2023-11-12 02:16:01,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 159 flow. Second operand has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 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) [2023-11-12 02:16:01,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:01,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 270 [2023-11-12 02:16:01,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:01,711 INFO L124 PetriNetUnfolderBase]: 66/139 cut-off events. [2023-11-12 02:16:01,711 INFO L125 PetriNetUnfolderBase]: For 216/216 co-relation queries the response was YES. [2023-11-12 02:16:01,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 139 events. 66/139 cut-off events. For 216/216 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 469 event pairs, 20 based on Foata normal form. 14/133 useless extension candidates. Maximal degree in co-relation 419. Up to 101 conditions per place. [2023-11-12 02:16:01,713 INFO L140 encePairwiseOnDemand]: 263/270 looper letters, 24 selfloop transitions, 6 changer transitions 6/36 dead transitions. [2023-11-12 02:16:01,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 237 flow [2023-11-12 02:16:01,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:16:01,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:16:01,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 656 transitions. [2023-11-12 02:16:01,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4049382716049383 [2023-11-12 02:16:01,718 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 656 transitions. [2023-11-12 02:16:01,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 656 transitions. [2023-11-12 02:16:01,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:01,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 656 transitions. [2023-11-12 02:16:01,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 109.33333333333333) internal successors, (656), 6 states have internal predecessors, (656), 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) [2023-11-12 02:16:01,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 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) [2023-11-12 02:16:01,728 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 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) [2023-11-12 02:16:01,728 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 159 flow. Second operand 6 states and 656 transitions. [2023-11-12 02:16:01,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 237 flow [2023-11-12 02:16:01,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 215 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-11-12 02:16:01,736 INFO L231 Difference]: Finished difference. Result has 37 places, 22 transitions, 126 flow [2023-11-12 02:16:01,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=126, PETRI_PLACES=37, PETRI_TRANSITIONS=22} [2023-11-12 02:16:01,738 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 14 predicate places. [2023-11-12 02:16:01,739 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 22 transitions, 126 flow [2023-11-12 02:16:01,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 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) [2023-11-12 02:16:01,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:01,740 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:01,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:16:01,740 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:16:01,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:01,741 INFO L85 PathProgramCache]: Analyzing trace with hash 860418127, now seen corresponding path program 1 times [2023-11-12 02:16:01,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:01,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730031920] [2023-11-12 02:16:01,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:01,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:01,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:01,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:01,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730031920] [2023-11-12 02:16:01,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730031920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:01,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:01,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:16:01,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447251150] [2023-11-12 02:16:01,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:01,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:16:01,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:01,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:16:01,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:01,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 270 [2023-11-12 02:16:01,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 22 transitions, 126 flow. Second operand has 6 states, 6 states have (on average 104.5) internal successors, (627), 6 states have internal predecessors, (627), 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) [2023-11-12 02:16:01,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:01,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 270 [2023-11-12 02:16:01,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:02,040 INFO L124 PetriNetUnfolderBase]: 40/95 cut-off events. [2023-11-12 02:16:02,040 INFO L125 PetriNetUnfolderBase]: For 174/174 co-relation queries the response was YES. [2023-11-12 02:16:02,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 95 events. 40/95 cut-off events. For 174/174 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 294 event pairs, 5 based on Foata normal form. 5/89 useless extension candidates. Maximal degree in co-relation 278. Up to 33 conditions per place. [2023-11-12 02:16:02,042 INFO L140 encePairwiseOnDemand]: 263/270 looper letters, 29 selfloop transitions, 8 changer transitions 1/38 dead transitions. [2023-11-12 02:16:02,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 38 transitions, 224 flow [2023-11-12 02:16:02,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:16:02,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:16:02,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 761 transitions. [2023-11-12 02:16:02,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40264550264550264 [2023-11-12 02:16:02,047 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 761 transitions. [2023-11-12 02:16:02,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 761 transitions. [2023-11-12 02:16:02,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:02,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 761 transitions. [2023-11-12 02:16:02,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.71428571428571) internal successors, (761), 7 states have internal predecessors, (761), 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) [2023-11-12 02:16:02,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 270.0) internal successors, (2160), 8 states have internal predecessors, (2160), 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) [2023-11-12 02:16:02,058 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 270.0) internal successors, (2160), 8 states have internal predecessors, (2160), 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) [2023-11-12 02:16:02,058 INFO L175 Difference]: Start difference. First operand has 37 places, 22 transitions, 126 flow. Second operand 7 states and 761 transitions. [2023-11-12 02:16:02,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 38 transitions, 224 flow [2023-11-12 02:16:02,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 38 transitions, 200 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-12 02:16:02,061 INFO L231 Difference]: Finished difference. Result has 36 places, 20 transitions, 107 flow [2023-11-12 02:16:02,062 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=107, PETRI_PLACES=36, PETRI_TRANSITIONS=20} [2023-11-12 02:16:02,063 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 13 predicate places. [2023-11-12 02:16:02,063 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 20 transitions, 107 flow [2023-11-12 02:16:02,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.5) internal successors, (627), 6 states have internal predecessors, (627), 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) [2023-11-12 02:16:02,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:02,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:02,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:16:02,065 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:16:02,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:02,066 INFO L85 PathProgramCache]: Analyzing trace with hash 645828997, now seen corresponding path program 2 times [2023-11-12 02:16:02,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:02,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562728697] [2023-11-12 02:16:02,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:02,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:02,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:02,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:02,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562728697] [2023-11-12 02:16:02,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562728697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:02,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:02,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:16:02,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622258646] [2023-11-12 02:16:02,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:02,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:16:02,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:02,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:16:02,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:02,174 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 270 [2023-11-12 02:16:02,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 20 transitions, 107 flow. Second operand has 6 states, 6 states have (on average 104.5) internal successors, (627), 6 states have internal predecessors, (627), 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) [2023-11-12 02:16:02,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:02,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 270 [2023-11-12 02:16:02,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:02,282 INFO L124 PetriNetUnfolderBase]: 34/81 cut-off events. [2023-11-12 02:16:02,283 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2023-11-12 02:16:02,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 81 events. 34/81 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 220 event pairs, 10 based on Foata normal form. 6/79 useless extension candidates. Maximal degree in co-relation 220. Up to 39 conditions per place. [2023-11-12 02:16:02,284 INFO L140 encePairwiseOnDemand]: 262/270 looper letters, 15 selfloop transitions, 3 changer transitions 14/32 dead transitions. [2023-11-12 02:16:02,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 32 transitions, 185 flow [2023-11-12 02:16:02,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:16:02,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:16:02,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 652 transitions. [2023-11-12 02:16:02,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4024691358024691 [2023-11-12 02:16:02,289 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 652 transitions. [2023-11-12 02:16:02,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 652 transitions. [2023-11-12 02:16:02,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:02,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 652 transitions. [2023-11-12 02:16:02,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 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) [2023-11-12 02:16:02,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 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) [2023-11-12 02:16:02,299 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 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) [2023-11-12 02:16:02,299 INFO L175 Difference]: Start difference. First operand has 36 places, 20 transitions, 107 flow. Second operand 6 states and 652 transitions. [2023-11-12 02:16:02,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 32 transitions, 185 flow [2023-11-12 02:16:02,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 32 transitions, 149 flow, removed 1 selfloop flow, removed 11 redundant places. [2023-11-12 02:16:02,302 INFO L231 Difference]: Finished difference. Result has 28 places, 13 transitions, 46 flow [2023-11-12 02:16:02,303 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=46, PETRI_PLACES=28, PETRI_TRANSITIONS=13} [2023-11-12 02:16:02,304 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 5 predicate places. [2023-11-12 02:16:02,304 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 13 transitions, 46 flow [2023-11-12 02:16:02,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.5) internal successors, (627), 6 states have internal predecessors, (627), 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) [2023-11-12 02:16:02,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:02,305 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:02,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:16:02,306 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:16:02,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:02,307 INFO L85 PathProgramCache]: Analyzing trace with hash 860418128, now seen corresponding path program 1 times [2023-11-12 02:16:02,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:02,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650264085] [2023-11-12 02:16:02,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:02,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:02,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:02,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:02,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650264085] [2023-11-12 02:16:02,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650264085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:02,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:02,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:16:02,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025106685] [2023-11-12 02:16:02,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:02,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:16:02,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:02,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:16:02,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:02,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 270 [2023-11-12 02:16:02,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 13 transitions, 46 flow. Second operand has 6 states, 6 states have (on average 104.5) internal successors, (627), 6 states have internal predecessors, (627), 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) [2023-11-12 02:16:02,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:02,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 270 [2023-11-12 02:16:02,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:02,485 INFO L124 PetriNetUnfolderBase]: 19/44 cut-off events. [2023-11-12 02:16:02,485 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2023-11-12 02:16:02,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 44 events. 19/44 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 74 event pairs, 1 based on Foata normal form. 4/43 useless extension candidates. Maximal degree in co-relation 94. Up to 16 conditions per place. [2023-11-12 02:16:02,486 INFO L140 encePairwiseOnDemand]: 265/270 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2023-11-12 02:16:02,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 21 transitions, 98 flow [2023-11-12 02:16:02,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:16:02,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:16:02,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 640 transitions. [2023-11-12 02:16:02,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3950617283950617 [2023-11-12 02:16:02,490 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 640 transitions. [2023-11-12 02:16:02,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 640 transitions. [2023-11-12 02:16:02,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:02,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 640 transitions. [2023-11-12 02:16:02,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 106.66666666666667) internal successors, (640), 6 states have internal predecessors, (640), 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) [2023-11-12 02:16:02,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 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) [2023-11-12 02:16:02,498 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 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) [2023-11-12 02:16:02,498 INFO L175 Difference]: Start difference. First operand has 28 places, 13 transitions, 46 flow. Second operand 6 states and 640 transitions. [2023-11-12 02:16:02,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 21 transitions, 98 flow [2023-11-12 02:16:02,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 21 transitions, 88 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-12 02:16:02,500 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2023-11-12 02:16:02,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2023-11-12 02:16:02,500 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -3 predicate places. [2023-11-12 02:16:02,501 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2023-11-12 02:16:02,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.5) internal successors, (627), 6 states have internal predecessors, (627), 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) [2023-11-12 02:16:02,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2023-11-12 02:16:02,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2023-11-12 02:16:02,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2023-11-12 02:16:02,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2023-11-12 02:16:02,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2023-11-12 02:16:02,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2023-11-12 02:16:02,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2023-11-12 02:16:02,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2023-11-12 02:16:02,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2023-11-12 02:16:02,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:16:02,507 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-11-12 02:16:02,512 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:16:02,513 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:16:02,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:16:02 BasicIcfg [2023-11-12 02:16:02,517 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:16:02,518 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:16:02,518 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:16:02,518 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:16:02,518 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:55" (3/4) ... [2023-11-12 02:16:02,520 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:16:02,523 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure BCSP_PnpStop [2023-11-12 02:16:02,529 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-12 02:16:02,529 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-12 02:16:02,530 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:16:02,530 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:16:02,613 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:16:02,614 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:16:02,614 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:16:02,615 INFO L158 Benchmark]: Toolchain (without parser) took 8425.39ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 111.3MB in the beginning and 101.9MB in the end (delta: 9.4MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. [2023-11-12 02:16:02,615 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 159.4MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:16:02,616 INFO L158 Benchmark]: CACSL2BoogieTranslator took 687.15ms. Allocated memory is still 159.4MB. Free memory was 111.1MB in the beginning and 91.0MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 02:16:02,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.62ms. Allocated memory is still 159.4MB. Free memory was 91.0MB in the beginning and 88.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:16:02,616 INFO L158 Benchmark]: Boogie Preprocessor took 75.07ms. Allocated memory is still 159.4MB. Free memory was 88.9MB in the beginning and 87.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:16:02,617 INFO L158 Benchmark]: RCFGBuilder took 586.77ms. Allocated memory is still 159.4MB. Free memory was 87.4MB in the beginning and 70.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 02:16:02,617 INFO L158 Benchmark]: TraceAbstraction took 6876.27ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 69.1MB in the beginning and 107.2MB in the end (delta: -38.1MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2023-11-12 02:16:02,618 INFO L158 Benchmark]: Witness Printer took 96.64ms. Allocated memory is still 209.7MB. Free memory was 107.2MB in the beginning and 101.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:16:02,620 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 159.4MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 687.15ms. Allocated memory is still 159.4MB. Free memory was 111.1MB in the beginning and 91.0MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.62ms. Allocated memory is still 159.4MB. Free memory was 91.0MB in the beginning and 88.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.07ms. Allocated memory is still 159.4MB. Free memory was 88.9MB in the beginning and 87.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 586.77ms. Allocated memory is still 159.4MB. Free memory was 87.4MB in the beginning and 70.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6876.27ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 69.1MB in the beginning and 107.2MB in the end (delta: -38.1MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Witness Printer took 96.64ms. Allocated memory is still 209.7MB. Free memory was 107.2MB in the beginning and 101.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 119 PlacesBefore, 23 PlacesAfterwards, 122 TransitionsBefore, 22 TransitionsAfterwards, 4340 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 91 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 33 ConcurrentYvCompositions, 4 ChoiceCompositions, 147 TotalNumberOfCompositions, 6093 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4943, independent: 4810, independent conditional: 0, independent unconditional: 4810, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2802, independent: 2759, independent conditional: 0, independent unconditional: 2759, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4943, independent: 2051, independent conditional: 0, independent unconditional: 2051, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 2802, unknown conditional: 0, unknown unconditional: 2802] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 719]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 719]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 712]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 712]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 719]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 719]: 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 3 procedures, 148 locations, 9 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: 6.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 164 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 618 IncrementalHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 25 mSDtfsCounter, 618 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred in iteration=3, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2023-11-12 02:16:02,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d79700d-7211-49a7-a63f-f581f2a59632/bin/uautomizer-verify-uTZkv6EMXl/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