./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 e136f4ab00a1c93eb400bb9f2a21b2887cfec20e18dff1c5960bc25f16f1bcad --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:48:41,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:48:41,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:48:41,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:48:41,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:48:41,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:48:41,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:48:41,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:48:41,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:48:41,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:48:41,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:48:41,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:48:41,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:48:41,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:48:41,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:48:41,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:48:41,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:48:41,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:48:41,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:48:41,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:48:41,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:48:41,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:48:41,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:48:41,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:48:41,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:48:41,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:48:41,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:48:41,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:48:41,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:48:41,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:48:41,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:48:41,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:48:41,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:48:41,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:48:41,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:48:41,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:48:41,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:48:41,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:48:41,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:48:41,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:48:41,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:48:41,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:48:41,178 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:48:41,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:48:41,179 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:48:41,179 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:48:41,180 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:48:41,180 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:48:41,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:48:41,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:48:41,181 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:48:41,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:48:41,182 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:48:41,182 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:48:41,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:48:41,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:48:41,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:48:41,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:48:41,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:48:41,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:48:41,183 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:48:41,183 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:48:41,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:48:41,183 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:48:41,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:48:41,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:48:41,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:48:41,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:48:41,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:48:41,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:48:41,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:48:41,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:48:41,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:48:41,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:48:41,185 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:48:41,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:48:41,185 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:48:41,186 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:48:41,186 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:48:41,186 INFO L138 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e136f4ab00a1c93eb400bb9f2a21b2887cfec20e18dff1c5960bc25f16f1bcad Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:48:41,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:48:41,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:48:41,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:48:41,461 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:48:41,461 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:48:41,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 08:48:42,351 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:48:42,573 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:48:42,573 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 08:48:42,595 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa1eb473/fabca0fbd9dd49b4ba471017cbe5f024/FLAGa148985ad [2023-08-30 08:48:42,608 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa1eb473/fabca0fbd9dd49b4ba471017cbe5f024 [2023-08-30 08:48:42,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:48:42,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:48:42,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:48:42,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:48:42,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:48:42,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:48:42" (1/1) ... [2023-08-30 08:48:42,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@688fcb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:42, skipping insertion in model container [2023-08-30 08:48:42,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:48:42" (1/1) ... [2023-08-30 08:48:42,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:48:42,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:48:42,834 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-08-30 08:48:43,017 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:48:43,027 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:48:43,039 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-08-30 08:48:43,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:48:43,146 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:48:43,146 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:48:43,151 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:48:43,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:43 WrapperNode [2023-08-30 08:48:43,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:48:43,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:48:43,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:48:43,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:48:43,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:43" (1/1) ... [2023-08-30 08:48:43,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:43" (1/1) ... [2023-08-30 08:48:43,199 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-08-30 08:48:43,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:48:43,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:48:43,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:48:43,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:48:43,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:43" (1/1) ... [2023-08-30 08:48:43,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:43" (1/1) ... [2023-08-30 08:48:43,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:43" (1/1) ... [2023-08-30 08:48:43,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:43" (1/1) ... [2023-08-30 08:48:43,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:43" (1/1) ... [2023-08-30 08:48:43,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:43" (1/1) ... [2023-08-30 08:48:43,232 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:43" (1/1) ... [2023-08-30 08:48:43,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:43" (1/1) ... [2023-08-30 08:48:43,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:48:43,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:48:43,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:48:43,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:48:43,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:43" (1/1) ... [2023-08-30 08:48:43,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:48:43,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:48:43,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 08:48:43,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 08:48:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:48:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:48:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:48:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:48:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:48:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:48:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:48:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:48:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:48:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:48:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:48:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:48:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:48:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:48:43,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:48:43,342 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 08:48:43,459 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:48:43,461 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:48:43,629 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:48:43,652 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:48:43,652 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:48:43,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:48:43 BoogieIcfgContainer [2023-08-30 08:48:43,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:48:43,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:48:43,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:48:43,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:48:43,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:48:42" (1/3) ... [2023-08-30 08:48:43,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8fa9b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:48:43, skipping insertion in model container [2023-08-30 08:48:43,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:43" (2/3) ... [2023-08-30 08:48:43,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8fa9b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:48:43, skipping insertion in model container [2023-08-30 08:48:43,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:48:43" (3/3) ... [2023-08-30 08:48:43,661 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 08:48:43,667 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:48:43,675 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:48:43,676 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 08:48:43,676 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:48:43,732 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:48:43,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 89 transitions, 193 flow [2023-08-30 08:48:43,817 INFO L130 PetriNetUnfolder]: 2/86 cut-off events. [2023-08-30 08:48:43,817 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:48:43,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 86 events. 2/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-08-30 08:48:43,821 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 89 transitions, 193 flow [2023-08-30 08:48:43,824 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 86 transitions, 181 flow [2023-08-30 08:48:43,830 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:48:43,839 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 86 transitions, 181 flow [2023-08-30 08:48:43,841 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 86 transitions, 181 flow [2023-08-30 08:48:43,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 181 flow [2023-08-30 08:48:43,865 INFO L130 PetriNetUnfolder]: 2/86 cut-off events. [2023-08-30 08:48:43,866 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:48:43,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 86 events. 2/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-08-30 08:48:43,868 INFO L119 LiptonReduction]: Number of co-enabled transitions 1916 [2023-08-30 08:48:45,572 INFO L134 LiptonReduction]: Checked pairs total: 5103 [2023-08-30 08:48:45,572 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-08-30 08:48:45,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:48:45,592 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;@32d79e1d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:48:45,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 08:48:45,597 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 08:48:45,597 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:48:45,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:48:45,598 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:48:45,598 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:48:45,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:48:45,602 INFO L85 PathProgramCache]: Analyzing trace with hash 312644719, now seen corresponding path program 1 times [2023-08-30 08:48:45,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:48:45,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084208473] [2023-08-30 08:48:45,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:48:45,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:48:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:48:45,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:48:45,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:48:45,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084208473] [2023-08-30 08:48:45,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084208473] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:48:45,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:48:45,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:48:45,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644691903] [2023-08-30 08:48:45,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:48:45,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:48:45,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:48:45,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:48:45,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:48:45,779 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 163 [2023-08-30 08:48:45,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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) [2023-08-30 08:48:45,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:48:45,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 163 [2023-08-30 08:48:45,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:48:45,861 INFO L130 PetriNetUnfolder]: 364/610 cut-off events. [2023-08-30 08:48:45,861 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2023-08-30 08:48:45,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1253 conditions, 610 events. 364/610 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 2701 event pairs, 96 based on Foata normal form. 0/435 useless extension candidates. Maximal degree in co-relation 1242. Up to 529 conditions per place. [2023-08-30 08:48:45,866 INFO L137 encePairwiseOnDemand]: 152/163 looper letters, 28 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2023-08-30 08:48:45,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 34 transitions, 147 flow [2023-08-30 08:48:45,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:48:45,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:48:45,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2023-08-30 08:48:45,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5296523517382413 [2023-08-30 08:48:45,874 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2023-08-30 08:48:45,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2023-08-30 08:48:45,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:48:45,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2023-08-30 08:48:45,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2023-08-30 08:48:45,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 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) [2023-08-30 08:48:45,881 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 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) [2023-08-30 08:48:45,882 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 55 flow. Second operand 3 states and 259 transitions. [2023-08-30 08:48:45,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 34 transitions, 147 flow [2023-08-30 08:48:45,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 142 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:48:45,885 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 86 flow [2023-08-30 08:48:45,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, 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=86, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2023-08-30 08:48:45,888 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2023-08-30 08:48:45,888 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 86 flow [2023-08-30 08:48:45,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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) [2023-08-30 08:48:45,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:48:45,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:48:45,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:48:45,889 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:48:45,889 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:48:45,889 INFO L85 PathProgramCache]: Analyzing trace with hash -2114943860, now seen corresponding path program 1 times [2023-08-30 08:48:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:48:45,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492016543] [2023-08-30 08:48:45,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:48:45,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:48:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:48:45,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:48:45,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:48:45,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492016543] [2023-08-30 08:48:45,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492016543] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:48:45,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:48:45,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:48:45,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320623955] [2023-08-30 08:48:45,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:48:45,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:48:45,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:48:45,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:48:45,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:48:45,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 163 [2023-08-30 08:48:45,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2023-08-30 08:48:45,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:48:45,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 163 [2023-08-30 08:48:45,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:48:46,038 INFO L130 PetriNetUnfolder]: 249/419 cut-off events. [2023-08-30 08:48:46,038 INFO L131 PetriNetUnfolder]: For 44/50 co-relation queries the response was YES. [2023-08-30 08:48:46,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1093 conditions, 419 events. 249/419 cut-off events. For 44/50 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1643 event pairs, 60 based on Foata normal form. 4/351 useless extension candidates. Maximal degree in co-relation 1082. Up to 337 conditions per place. [2023-08-30 08:48:46,040 INFO L137 encePairwiseOnDemand]: 156/163 looper letters, 25 selfloop transitions, 4 changer transitions 0/31 dead transitions. [2023-08-30 08:48:46,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 154 flow [2023-08-30 08:48:46,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:48:46,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:48:46,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 324 transitions. [2023-08-30 08:48:46,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49693251533742333 [2023-08-30 08:48:46,042 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 324 transitions. [2023-08-30 08:48:46,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 324 transitions. [2023-08-30 08:48:46,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:48:46,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 324 transitions. [2023-08-30 08:48:46,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2023-08-30 08:48:46,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 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) [2023-08-30 08:48:46,045 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 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) [2023-08-30 08:48:46,045 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 86 flow. Second operand 4 states and 324 transitions. [2023-08-30 08:48:46,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 154 flow [2023-08-30 08:48:46,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 31 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:48:46,069 INFO L231 Difference]: Finished difference. Result has 31 places, 22 transitions, 78 flow [2023-08-30 08:48:46,069 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2023-08-30 08:48:46,070 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2023-08-30 08:48:46,070 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 78 flow [2023-08-30 08:48:46,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2023-08-30 08:48:46,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:48:46,070 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:48:46,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:48:46,071 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:48:46,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:48:46,071 INFO L85 PathProgramCache]: Analyzing trace with hash -2139852979, now seen corresponding path program 1 times [2023-08-30 08:48:46,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:48:46,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428029412] [2023-08-30 08:48:46,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:48:46,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:48:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:48:46,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:48:46,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:48:46,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428029412] [2023-08-30 08:48:46,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428029412] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:48:46,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:48:46,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:48:46,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116317631] [2023-08-30 08:48:46,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:48:46,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:48:46,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:48:46,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:48:46,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:48:46,117 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 163 [2023-08-30 08:48:46,117 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2023-08-30 08:48:46,118 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:48:46,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 163 [2023-08-30 08:48:46,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:48:46,173 INFO L130 PetriNetUnfolder]: 170/291 cut-off events. [2023-08-30 08:48:46,173 INFO L131 PetriNetUnfolder]: For 132/138 co-relation queries the response was YES. [2023-08-30 08:48:46,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 291 events. 170/291 cut-off events. For 132/138 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1018 event pairs, 39 based on Foata normal form. 4/281 useless extension candidates. Maximal degree in co-relation 746. Up to 120 conditions per place. [2023-08-30 08:48:46,175 INFO L137 encePairwiseOnDemand]: 156/163 looper letters, 29 selfloop transitions, 7 changer transitions 3/41 dead transitions. [2023-08-30 08:48:46,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 41 transitions, 206 flow [2023-08-30 08:48:46,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:48:46,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:48:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 334 transitions. [2023-08-30 08:48:46,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5122699386503068 [2023-08-30 08:48:46,177 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 334 transitions. [2023-08-30 08:48:46,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 334 transitions. [2023-08-30 08:48:46,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:48:46,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 334 transitions. [2023-08-30 08:48:46,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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) [2023-08-30 08:48:46,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 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) [2023-08-30 08:48:46,179 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 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) [2023-08-30 08:48:46,179 INFO L175 Difference]: Start difference. First operand has 31 places, 22 transitions, 78 flow. Second operand 4 states and 334 transitions. [2023-08-30 08:48:46,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 41 transitions, 206 flow [2023-08-30 08:48:46,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 41 transitions, 201 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:48:46,181 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 99 flow [2023-08-30 08:48:46,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2023-08-30 08:48:46,182 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2023-08-30 08:48:46,182 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 99 flow [2023-08-30 08:48:46,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2023-08-30 08:48:46,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:48:46,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:48:46,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:48:46,183 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:48:46,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:48:46,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1016893587, now seen corresponding path program 1 times [2023-08-30 08:48:46,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:48:46,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920075660] [2023-08-30 08:48:46,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:48:46,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:48:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:48:46,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:48:46,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:48:46,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920075660] [2023-08-30 08:48:46,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920075660] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:48:46,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:48:46,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:48:46,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748097397] [2023-08-30 08:48:46,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:48:46,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:48:46,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:48:46,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:48:46,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:48:46,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 163 [2023-08-30 08:48:46,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 99 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 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) [2023-08-30 08:48:46,273 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:48:46,273 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 163 [2023-08-30 08:48:46,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:48:46,319 INFO L130 PetriNetUnfolder]: 156/265 cut-off events. [2023-08-30 08:48:46,319 INFO L131 PetriNetUnfolder]: For 272/284 co-relation queries the response was YES. [2023-08-30 08:48:46,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 815 conditions, 265 events. 156/265 cut-off events. For 272/284 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 937 event pairs, 39 based on Foata normal form. 17/277 useless extension candidates. Maximal degree in co-relation 802. Up to 120 conditions per place. [2023-08-30 08:48:46,320 INFO L137 encePairwiseOnDemand]: 156/163 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2023-08-30 08:48:46,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 35 transitions, 185 flow [2023-08-30 08:48:46,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:48:46,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:48:46,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 401 transitions. [2023-08-30 08:48:46,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4920245398773006 [2023-08-30 08:48:46,321 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 401 transitions. [2023-08-30 08:48:46,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 401 transitions. [2023-08-30 08:48:46,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:48:46,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 401 transitions. [2023-08-30 08:48:46,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 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) [2023-08-30 08:48:46,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 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) [2023-08-30 08:48:46,323 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 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) [2023-08-30 08:48:46,324 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 99 flow. Second operand 5 states and 401 transitions. [2023-08-30 08:48:46,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 35 transitions, 185 flow [2023-08-30 08:48:46,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 161 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 08:48:46,325 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2023-08-30 08:48:46,325 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2023-08-30 08:48:46,325 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2023-08-30 08:48:46,326 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2023-08-30 08:48:46,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 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) [2023-08-30 08:48:46,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 08:48:46,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 08:48:46,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 08:48:46,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 08:48:46,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 08:48:46,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 08:48:46,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 08:48:46,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 08:48:46,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 08:48:46,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 08:48:46,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 08:48:46,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 08:48:46,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 08:48:46,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 08:48:46,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 08:48:46,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:48:46,329 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 08:48:46,332 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:48:46,332 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:48:46,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:48:46 BasicIcfg [2023-08-30 08:48:46,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:48:46,335 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:48:46,335 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:48:46,335 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:48:46,335 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:48:43" (3/4) ... [2023-08-30 08:48:46,337 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:48:46,340 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:48:46,340 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:48:46,340 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:48:46,342 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-30 08:48:46,342 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 08:48:46,342 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 08:48:46,342 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:48:46,363 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:48:46,363 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:48:46,364 INFO L158 Benchmark]: Toolchain (without parser) took 3752.33ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 49.4MB in the beginning and 50.2MB in the end (delta: -787.4kB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2023-08-30 08:48:46,364 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:48:46,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 538.71ms. Allocated memory is still 73.4MB. Free memory was 49.1MB in the beginning and 47.5MB in the end (delta: 1.7MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2023-08-30 08:48:46,365 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.81ms. Allocated memory is still 73.4MB. Free memory was 47.5MB in the beginning and 45.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:48:46,365 INFO L158 Benchmark]: Boogie Preprocessor took 39.48ms. Allocated memory is still 73.4MB. Free memory was 45.4MB in the beginning and 43.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:48:46,365 INFO L158 Benchmark]: RCFGBuilder took 414.40ms. Allocated memory is still 73.4MB. Free memory was 43.9MB in the beginning and 49.0MB in the end (delta: -5.1MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2023-08-30 08:48:46,365 INFO L158 Benchmark]: TraceAbstraction took 2678.72ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 48.7MB in the beginning and 53.5MB in the end (delta: -4.8MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2023-08-30 08:48:46,366 INFO L158 Benchmark]: Witness Printer took 28.77ms. Allocated memory is still 107.0MB. Free memory was 53.5MB in the beginning and 50.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:48:46,367 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 538.71ms. Allocated memory is still 73.4MB. Free memory was 49.1MB in the beginning and 47.5MB in the end (delta: 1.7MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.81ms. Allocated memory is still 73.4MB. Free memory was 47.5MB in the beginning and 45.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.48ms. Allocated memory is still 73.4MB. Free memory was 45.4MB in the beginning and 43.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 414.40ms. Allocated memory is still 73.4MB. Free memory was 43.9MB in the beginning and 49.0MB in the end (delta: -5.1MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2678.72ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 48.7MB in the beginning and 53.5MB in the end (delta: -4.8MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * Witness Printer took 28.77ms. Allocated memory is still 107.0MB. Free memory was 53.5MB in the beginning and 50.2MB in the end (delta: 3.3MB). 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: 1.7s, 94 PlacesBefore, 32 PlacesAfterwards, 86 TransitionsBefore, 23 TransitionsAfterwards, 1916 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 5103 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2252, independent: 2087, independent conditional: 0, independent unconditional: 2087, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1061, independent: 1021, independent conditional: 0, independent unconditional: 1021, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2252, independent: 1066, independent conditional: 0, independent unconditional: 1066, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 1061, unknown conditional: 0, unknown unconditional: 1061] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, 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: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 745]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 745]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 117 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 95 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 201 IncrementalHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 7 mSDtfsCounter, 201 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 08:48:46,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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