./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --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 c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:09:09,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:09:09,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:09:10,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:09:10,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:09:10,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:09:10,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:09:10,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:09:10,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:09:10,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:09:10,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:09:10,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:09:10,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:09:10,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:09:10,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:09:10,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:09:10,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:09:10,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:09:10,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:09:10,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:09:10,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:09:10,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:09:10,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:09:10,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:09:10,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:09:10,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:09:10,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:09:10,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:09:10,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:09:10,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:09:10,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:09:10,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:09:10,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:09:10,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:09:10,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:09:10,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:09:10,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:09:10,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:09:10,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:09:10,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:09:10,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:09:10,079 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 12:09:10,116 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:09:10,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:09:10,117 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:09:10,117 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:09:10,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:09:10,118 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:09:10,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:09:10,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:09:10,120 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:09:10,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:09:10,121 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:09:10,121 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:09:10,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:09:10,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:09:10,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:09:10,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:09:10,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:09:10,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:09:10,123 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 12:09:10,124 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:09:10,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:09:10,124 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:09:10,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:09:10,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:09:10,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:09:10,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:09:10,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:09:10,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:09:10,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:09:10,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:09:10,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:09:10,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:09:10,127 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:09:10,128 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:09:10,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:09:10,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 [2022-11-20 12:09:10,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:09:10,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:09:10,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:09:10,466 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:09:10,467 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:09:10,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-11-20 12:09:13,461 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:09:13,705 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:09:13,706 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-11-20 12:09:13,715 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/data/28cb61fd5/a6539beb5633420393f754deb0005b87/FLAGdf3d7238f [2022-11-20 12:09:13,730 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/data/28cb61fd5/a6539beb5633420393f754deb0005b87 [2022-11-20 12:09:13,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:09:13,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:09:13,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:09:13,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:09:13,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:09:13,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:09:13" (1/1) ... [2022-11-20 12:09:13,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4813d756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:13, skipping insertion in model container [2022-11-20 12:09:13,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:09:13" (1/1) ... [2022-11-20 12:09:13,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:09:13,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:09:13,977 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-11-20 12:09:13,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:09:13,995 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:09:14,029 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-11-20 12:09:14,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:09:14,049 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:09:14,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:14 WrapperNode [2022-11-20 12:09:14,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:09:14,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:09:14,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:09:14,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:09:14,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:14" (1/1) ... [2022-11-20 12:09:14,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:14" (1/1) ... [2022-11-20 12:09:14,108 INFO L138 Inliner]: procedures = 29, calls = 88, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 482 [2022-11-20 12:09:14,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:09:14,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:09:14,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:09:14,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:09:14,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:14" (1/1) ... [2022-11-20 12:09:14,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:14" (1/1) ... [2022-11-20 12:09:14,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:14" (1/1) ... [2022-11-20 12:09:14,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:14" (1/1) ... [2022-11-20 12:09:14,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:14" (1/1) ... [2022-11-20 12:09:14,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:14" (1/1) ... [2022-11-20 12:09:14,146 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:14" (1/1) ... [2022-11-20 12:09:14,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:14" (1/1) ... [2022-11-20 12:09:14,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:09:14,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:09:14,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:09:14,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:09:14,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:14" (1/1) ... [2022-11-20 12:09:14,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:09:14,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:09:14,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:09:14,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:09:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:09:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:09:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:09:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:09:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 12:09:14,289 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 12:09:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 12:09:14,289 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 12:09:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 12:09:14,290 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 12:09:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-20 12:09:14,290 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-20 12:09:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:09:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-20 12:09:14,290 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-20 12:09:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-20 12:09:14,290 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-20 12:09:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:09:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:09:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:09:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:09:14,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:09:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:09:14,293 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:09:14,427 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:09:14,430 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:09:15,414 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:09:16,175 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:09:16,175 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 12:09:16,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:09:16 BoogieIcfgContainer [2022-11-20 12:09:16,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:09:16,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:09:16,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:09:16,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:09:16,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:09:13" (1/3) ... [2022-11-20 12:09:16,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32723e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:09:16, skipping insertion in model container [2022-11-20 12:09:16,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:14" (2/3) ... [2022-11-20 12:09:16,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32723e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:09:16, skipping insertion in model container [2022-11-20 12:09:16,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:09:16" (3/3) ... [2022-11-20 12:09:16,194 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2022-11-20 12:09:16,208 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:09:16,219 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:09:16,219 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-11-20 12:09:16,219 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:09:16,502 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-20 12:09:16,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 370 places, 374 transitions, 820 flow [2022-11-20 12:09:16,679 INFO L130 PetriNetUnfolder]: 21/316 cut-off events. [2022-11-20 12:09:16,679 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 12:09:16,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 316 events. 21/316 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 558 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 263. Up to 3 conditions per place. [2022-11-20 12:09:16,690 INFO L82 GeneralOperation]: Start removeDead. Operand has 370 places, 374 transitions, 820 flow [2022-11-20 12:09:16,707 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 296 places, 297 transitions, 639 flow [2022-11-20 12:09:16,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:09:16,729 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=LoopsAndPotentialCycles, 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;@40e68899, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:09:16,729 INFO L358 AbstractCegarLoop]: Starting to check reachability of 102 error locations. [2022-11-20 12:09:16,751 INFO L130 PetriNetUnfolder]: 1/72 cut-off events. [2022-11-20 12:09:16,752 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:09:16,752 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:09:16,753 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:09:16,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-11-20 12:09:16,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:16,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1168030213, now seen corresponding path program 1 times [2022-11-20 12:09:16,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:09:16,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611591999] [2022-11-20 12:09:16,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:16,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:09:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:17,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:09:17,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:09:17,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611591999] [2022-11-20 12:09:17,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611591999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:09:17,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:09:17,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:09:17,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070558911] [2022-11-20 12:09:17,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:09:17,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:09:17,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:09:17,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:09:17,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:09:17,329 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 378 [2022-11-20 12:09:17,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 297 transitions, 639 flow. Second operand has 5 states, 5 states have (on average 236.4) internal successors, (1182), 5 states have internal predecessors, (1182), 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) [2022-11-20 12:09:17,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:09:17,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 378 [2022-11-20 12:09:17,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:09:26,613 INFO L130 PetriNetUnfolder]: 15409/21358 cut-off events. [2022-11-20 12:09:26,613 INFO L131 PetriNetUnfolder]: For 4925/4959 co-relation queries the response was YES. [2022-11-20 12:09:26,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46806 conditions, 21358 events. 15409/21358 cut-off events. For 4925/4959 co-relation queries the response was YES. Maximal size of possible extension queue 1740. Compared 139252 event pairs, 11952 based on Foata normal form. 2437/10156 useless extension candidates. Maximal degree in co-relation 46085. Up to 20612 conditions per place. [2022-11-20 12:09:26,978 INFO L137 encePairwiseOnDemand]: 345/378 looper letters, 72 selfloop transitions, 5 changer transitions 4/269 dead transitions. [2022-11-20 12:09:26,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 269 transitions, 745 flow [2022-11-20 12:09:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:09:26,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 12:09:27,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1284 transitions. [2022-11-20 12:09:27,009 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6793650793650794 [2022-11-20 12:09:27,010 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1284 transitions. [2022-11-20 12:09:27,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1284 transitions. [2022-11-20 12:09:27,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:09:27,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1284 transitions. [2022-11-20 12:09:27,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 256.8) internal successors, (1284), 5 states have internal predecessors, (1284), 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) [2022-11-20 12:09:27,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 378.0) internal successors, (2268), 6 states have internal predecessors, (2268), 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) [2022-11-20 12:09:27,047 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 378.0) internal successors, (2268), 6 states have internal predecessors, (2268), 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) [2022-11-20 12:09:27,049 INFO L175 Difference]: Start difference. First operand has 296 places, 297 transitions, 639 flow. Second operand 5 states and 1284 transitions. [2022-11-20 12:09:27,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 269 transitions, 745 flow [2022-11-20 12:09:27,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 269 transitions, 716 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-11-20 12:09:27,077 INFO L231 Difference]: Finished difference. Result has 272 places, 265 transitions, 556 flow [2022-11-20 12:09:27,079 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=378, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=556, PETRI_PLACES=272, PETRI_TRANSITIONS=265} [2022-11-20 12:09:27,084 INFO L288 CegarLoopForPetriNet]: 296 programPoint places, -24 predicate places. [2022-11-20 12:09:27,084 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 265 transitions, 556 flow [2022-11-20 12:09:27,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 236.4) internal successors, (1182), 5 states have internal predecessors, (1182), 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) [2022-11-20 12:09:27,086 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:09:27,086 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:09:27,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:09:27,087 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-11-20 12:09:27,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:27,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1849196766, now seen corresponding path program 1 times [2022-11-20 12:09:27,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:09:27,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064848658] [2022-11-20 12:09:27,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:27,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:09:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:27,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:09:27,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:09:27,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064848658] [2022-11-20 12:09:27,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064848658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:09:27,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:09:27,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:09:27,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818916051] [2022-11-20 12:09:27,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:09:27,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:09:27,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:09:27,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:09:27,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:09:27,267 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 378 [2022-11-20 12:09:27,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 265 transitions, 556 flow. Second operand has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 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) [2022-11-20 12:09:27,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:09:27,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 378 [2022-11-20 12:09:27,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:09:34,741 INFO L130 PetriNetUnfolder]: 15409/21353 cut-off events. [2022-11-20 12:09:34,741 INFO L131 PetriNetUnfolder]: For 1225/1259 co-relation queries the response was YES. [2022-11-20 12:09:34,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43256 conditions, 21353 events. 15409/21353 cut-off events. For 1225/1259 co-relation queries the response was YES. Maximal size of possible extension queue 1740. Compared 139457 event pairs, 11952 based on Foata normal form. 0/7719 useless extension candidates. Maximal degree in co-relation 43173. Up to 20598 conditions per place. [2022-11-20 12:09:35,003 INFO L137 encePairwiseOnDemand]: 374/378 looper letters, 61 selfloop transitions, 3 changer transitions 0/264 dead transitions. [2022-11-20 12:09:35,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 264 transitions, 682 flow [2022-11-20 12:09:35,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:09:35,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 12:09:35,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1089 transitions. [2022-11-20 12:09:35,012 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7202380952380952 [2022-11-20 12:09:35,012 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1089 transitions. [2022-11-20 12:09:35,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1089 transitions. [2022-11-20 12:09:35,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:09:35,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1089 transitions. [2022-11-20 12:09:35,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 272.25) internal successors, (1089), 4 states have internal predecessors, (1089), 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) [2022-11-20 12:09:35,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 378.0) internal successors, (1890), 5 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) [2022-11-20 12:09:35,022 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 378.0) internal successors, (1890), 5 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) [2022-11-20 12:09:35,023 INFO L175 Difference]: Start difference. First operand has 272 places, 265 transitions, 556 flow. Second operand 4 states and 1089 transitions. [2022-11-20 12:09:35,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 264 transitions, 682 flow [2022-11-20 12:09:35,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 264 transitions, 672 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:09:35,032 INFO L231 Difference]: Finished difference. Result has 266 places, 264 transitions, 550 flow [2022-11-20 12:09:35,033 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=378, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=550, PETRI_PLACES=266, PETRI_TRANSITIONS=264} [2022-11-20 12:09:35,034 INFO L288 CegarLoopForPetriNet]: 296 programPoint places, -30 predicate places. [2022-11-20 12:09:35,035 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 264 transitions, 550 flow [2022-11-20 12:09:35,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 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) [2022-11-20 12:09:35,036 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:09:35,036 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:09:35,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:09:35,037 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-11-20 12:09:35,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:35,037 INFO L85 PathProgramCache]: Analyzing trace with hash -485653418, now seen corresponding path program 1 times [2022-11-20 12:09:35,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:09:35,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141861611] [2022-11-20 12:09:35,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:35,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:09:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:09:35,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:09:35,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141861611] [2022-11-20 12:09:35,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141861611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:09:35,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:09:35,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:09:35,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894460387] [2022-11-20 12:09:35,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:09:35,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:09:35,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:09:35,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:09:35,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:09:35,236 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 378 [2022-11-20 12:09:35,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 264 transitions, 550 flow. Second operand has 4 states, 4 states have (on average 260.5) internal successors, (1042), 4 states have internal predecessors, (1042), 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) [2022-11-20 12:09:35,239 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:09:35,239 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 378 [2022-11-20 12:09:35,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:09:47,857 INFO L130 PetriNetUnfolder]: 30247/41713 cut-off events. [2022-11-20 12:09:47,858 INFO L131 PetriNetUnfolder]: For 2412/2476 co-relation queries the response was YES. [2022-11-20 12:09:48,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84619 conditions, 41713 events. 30247/41713 cut-off events. For 2412/2476 co-relation queries the response was YES. Maximal size of possible extension queue 2402. Compared 290103 event pairs, 23430 based on Foata normal form. 0/14815 useless extension candidates. Maximal degree in co-relation 84549. Up to 20176 conditions per place. [2022-11-20 12:09:48,302 INFO L137 encePairwiseOnDemand]: 372/378 looper letters, 122 selfloop transitions, 4 changer transitions 0/325 dead transitions. [2022-11-20 12:09:48,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 325 transitions, 940 flow [2022-11-20 12:09:48,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:09:48,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 12:09:48,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1423 transitions. [2022-11-20 12:09:48,307 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7529100529100529 [2022-11-20 12:09:48,308 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1423 transitions. [2022-11-20 12:09:48,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1423 transitions. [2022-11-20 12:09:48,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:09:48,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1423 transitions. [2022-11-20 12:09:48,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 284.6) internal successors, (1423), 5 states have internal predecessors, (1423), 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) [2022-11-20 12:09:48,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 378.0) internal successors, (2268), 6 states have internal predecessors, (2268), 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) [2022-11-20 12:09:48,319 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 378.0) internal successors, (2268), 6 states have internal predecessors, (2268), 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) [2022-11-20 12:09:48,320 INFO L175 Difference]: Start difference. First operand has 266 places, 264 transitions, 550 flow. Second operand 5 states and 1423 transitions. [2022-11-20 12:09:48,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 325 transitions, 940 flow [2022-11-20 12:09:48,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 325 transitions, 934 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 12:09:48,327 INFO L231 Difference]: Finished difference. Result has 270 places, 267 transitions, 574 flow [2022-11-20 12:09:48,328 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=378, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=574, PETRI_PLACES=270, PETRI_TRANSITIONS=267} [2022-11-20 12:09:48,331 INFO L288 CegarLoopForPetriNet]: 296 programPoint places, -26 predicate places. [2022-11-20 12:09:48,331 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 267 transitions, 574 flow [2022-11-20 12:09:48,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 260.5) internal successors, (1042), 4 states have internal predecessors, (1042), 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) [2022-11-20 12:09:48,332 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:09:48,333 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:09:48,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:09:48,334 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-11-20 12:09:48,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:48,335 INFO L85 PathProgramCache]: Analyzing trace with hash 350380091, now seen corresponding path program 1 times [2022-11-20 12:09:48,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:09:48,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078469558] [2022-11-20 12:09:48,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:48,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:09:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:48,574 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:09:48,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:09:48,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078469558] [2022-11-20 12:09:48,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078469558] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:09:48,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650313011] [2022-11-20 12:09:48,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:48,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:09:48,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:09:48,582 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:09:48,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc70535-93fa-4bcd-84c3-dfddafb8ff74/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:09:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:48,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:09:48,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:09:48,982 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:09:48,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:09:49,050 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:09:49,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650313011] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:09:49,051 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:09:49,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-20 12:09:49,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685246369] [2022-11-20 12:09:49,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:09:49,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 12:09:49,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:09:49,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 12:09:49,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:09:49,056 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 378 [2022-11-20 12:09:49,060 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 267 transitions, 574 flow. Second operand has 12 states, 12 states have (on average 261.6666666666667) internal successors, (3140), 12 states have internal predecessors, (3140), 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) [2022-11-20 12:09:49,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:09:49,061 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 378 [2022-11-20 12:09:49,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand