/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:35:11,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:35:11,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:35:11,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:35:11,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:35:11,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:35:11,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:35:11,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:35:11,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:35:11,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:35:11,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:35:11,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:35:11,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:35:11,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:35:11,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:35:11,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:35:11,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:35:11,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:35:11,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:35:11,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:35:11,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:35:11,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:35:11,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:35:11,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:35:11,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:35:11,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:35:11,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:35:11,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:35:11,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:35:11,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:35:11,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:35:11,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:35:11,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:35:11,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:35:11,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:35:11,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:35:11,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:35:11,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:35:11,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:35:11,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:35:11,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:35:11,236 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:35:11,264 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:35:11,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:35:11,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:35:11,265 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:35:11,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:35:11,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:35:11,266 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:35:11,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:35:11,266 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:35:11,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:35:11,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:35:11,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:35:11,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:35:11,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:35:11,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:35:11,268 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:35:11,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:35:11,268 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:35:11,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:35:11,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:35:11,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:35:11,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:35:11,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:35:11,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:11,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:35:11,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:35:11,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:35:11,269 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:35:11,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:35:11,269 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:35:11,270 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:35:11,270 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:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:35:11,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:35:11,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:35:11,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:35:11,522 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:35:11,523 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:35:11,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.i [2022-09-16 11:35:11,586 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d606562a/3e9cb32c3ead4ceeaf8016118740974b/FLAGd3200c4bd [2022-09-16 11:35:12,115 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:35:12,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.i [2022-09-16 11:35:12,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d606562a/3e9cb32c3ead4ceeaf8016118740974b/FLAGd3200c4bd [2022-09-16 11:35:12,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d606562a/3e9cb32c3ead4ceeaf8016118740974b [2022-09-16 11:35:12,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:35:12,600 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:35:12,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:12,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:35:12,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:35:12,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:12" (1/1) ... [2022-09-16 11:35:12,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9cf44b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:12, skipping insertion in model container [2022-09-16 11:35:12,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:12" (1/1) ... [2022-09-16 11:35:12,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:35:12,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:35:12,833 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.i[945,958] [2022-09-16 11:35:13,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:13,022 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:35:13,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.i[945,958] [2022-09-16 11:35:13,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:13,091 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:35:13,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:13 WrapperNode [2022-09-16 11:35:13,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:13,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:13,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:35:13,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:35:13,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:13" (1/1) ... [2022-09-16 11:35:13,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:13" (1/1) ... [2022-09-16 11:35:13,160 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-09-16 11:35:13,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:13,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:35:13,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:35:13,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:35:13,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:13" (1/1) ... [2022-09-16 11:35:13,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:13" (1/1) ... [2022-09-16 11:35:13,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:13" (1/1) ... [2022-09-16 11:35:13,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:13" (1/1) ... [2022-09-16 11:35:13,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:13" (1/1) ... [2022-09-16 11:35:13,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:13" (1/1) ... [2022-09-16 11:35:13,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:13" (1/1) ... [2022-09-16 11:35:13,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:35:13,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:35:13,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:35:13,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:35:13,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:13" (1/1) ... [2022-09-16 11:35:13,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:13,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:35:13,243 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) [2022-09-16 11:35:13,266 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 [2022-09-16 11:35:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:35:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:35:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:35:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:35:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:35:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:35:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:35:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:35:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:35:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:35:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:35:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:35:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:35:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:35:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:35:13,290 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:35:13,441 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:35:13,442 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:35:13,635 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:35:13,659 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:35:13,660 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:35:13,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:13 BoogieIcfgContainer [2022-09-16 11:35:13,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:35:13,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:35:13,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:35:13,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:35:13,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:35:12" (1/3) ... [2022-09-16 11:35:13,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3387c6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:13, skipping insertion in model container [2022-09-16 11:35:13,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:13" (2/3) ... [2022-09-16 11:35:13,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3387c6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:13, skipping insertion in model container [2022-09-16 11:35:13,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:13" (3/3) ... [2022-09-16 11:35:13,676 INFO L112 eAbstractionObserver]: Analyzing ICFG safe021_tso.i [2022-09-16 11:35:13,693 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:35:13,694 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 11:35:13,694 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:35:13,748 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:35:13,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 97 transitions, 209 flow [2022-09-16 11:35:13,854 INFO L130 PetriNetUnfolder]: 2/94 cut-off events. [2022-09-16 11:35:13,855 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:13,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2022-09-16 11:35:13,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 97 transitions, 209 flow [2022-09-16 11:35:13,865 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 94 transitions, 197 flow [2022-09-16 11:35:13,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:35:13,891 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=false, 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;@5f980fb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:35:13,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-09-16 11:35:13,905 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-09-16 11:35:13,905 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:13,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:13,906 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:13,907 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:13,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:13,913 INFO L85 PathProgramCache]: Analyzing trace with hash -2009469762, now seen corresponding path program 1 times [2022-09-16 11:35:13,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:13,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881004290] [2022-09-16 11:35:13,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:13,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:14,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:14,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:14,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881004290] [2022-09-16 11:35:14,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881004290] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:14,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:14,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:35:14,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600997784] [2022-09-16 11:35:14,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:14,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:35:14,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:14,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:35:14,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:35:14,246 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2022-09-16 11:35:14,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2022-09-16 11:35:14,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:14,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2022-09-16 11:35:14,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:14,457 INFO L130 PetriNetUnfolder]: 104/310 cut-off events. [2022-09-16 11:35:14,457 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-09-16 11:35:14,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 310 events. 104/310 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1409 event pairs, 38 based on Foata normal form. 38/257 useless extension candidates. Maximal degree in co-relation 494. Up to 187 conditions per place. [2022-09-16 11:35:14,465 INFO L137 encePairwiseOnDemand]: 85/97 looper letters, 16 selfloop transitions, 4 changer transitions 0/97 dead transitions. [2022-09-16 11:35:14,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 97 transitions, 249 flow [2022-09-16 11:35:14,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:35:14,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:35:14,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2022-09-16 11:35:14,484 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9278350515463918 [2022-09-16 11:35:14,485 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2022-09-16 11:35:14,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2022-09-16 11:35:14,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:14,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2022-09-16 11:35:14,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2022-09-16 11:35:14,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-09-16 11:35:14,505 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-09-16 11:35:14,507 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 197 flow. Second operand 3 states and 270 transitions. [2022-09-16 11:35:14,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 97 transitions, 249 flow [2022-09-16 11:35:14,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 97 transitions, 244 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:35:14,519 INFO L231 Difference]: Finished difference. Result has 101 places, 94 transitions, 224 flow [2022-09-16 11:35:14,522 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=101, PETRI_TRANSITIONS=94} [2022-09-16 11:35:14,526 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, -1 predicate places. [2022-09-16 11:35:14,526 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 94 transitions, 224 flow [2022-09-16 11:35:14,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2022-09-16 11:35:14,527 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:14,527 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:14,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:35:14,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:14,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:14,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1426050337, now seen corresponding path program 1 times [2022-09-16 11:35:14,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:14,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390198118] [2022-09-16 11:35:14,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:14,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:14,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:14,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:14,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390198118] [2022-09-16 11:35:14,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390198118] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:14,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:14,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:14,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700100569] [2022-09-16 11:35:14,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:14,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:14,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:14,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:14,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:14,670 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2022-09-16 11:35:14,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 94 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2022-09-16 11:35:14,672 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:14,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2022-09-16 11:35:14,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:14,803 INFO L130 PetriNetUnfolder]: 54/436 cut-off events. [2022-09-16 11:35:14,804 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-09-16 11:35:14,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 662 conditions, 436 events. 54/436 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2252 event pairs, 17 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 628. Up to 80 conditions per place. [2022-09-16 11:35:14,819 INFO L137 encePairwiseOnDemand]: 87/97 looper letters, 15 selfloop transitions, 10 changer transitions 3/105 dead transitions. [2022-09-16 11:35:14,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 105 transitions, 320 flow [2022-09-16 11:35:14,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:14,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:14,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 351 transitions. [2022-09-16 11:35:14,824 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.904639175257732 [2022-09-16 11:35:14,824 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 351 transitions. [2022-09-16 11:35:14,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 351 transitions. [2022-09-16 11:35:14,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:14,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 351 transitions. [2022-09-16 11:35:14,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 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) [2022-09-16 11:35:14,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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) [2022-09-16 11:35:14,830 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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) [2022-09-16 11:35:14,830 INFO L175 Difference]: Start difference. First operand has 101 places, 94 transitions, 224 flow. Second operand 4 states and 351 transitions. [2022-09-16 11:35:14,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 105 transitions, 320 flow [2022-09-16 11:35:14,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 105 transitions, 316 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:35:14,835 INFO L231 Difference]: Finished difference. Result has 105 places, 97 transitions, 280 flow [2022-09-16 11:35:14,836 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=280, PETRI_PLACES=105, PETRI_TRANSITIONS=97} [2022-09-16 11:35:14,837 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 3 predicate places. [2022-09-16 11:35:14,837 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 97 transitions, 280 flow [2022-09-16 11:35:14,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2022-09-16 11:35:14,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:14,837 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:14,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:35:14,838 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:14,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:14,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1634174504, now seen corresponding path program 1 times [2022-09-16 11:35:14,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:14,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254683746] [2022-09-16 11:35:14,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:14,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:14,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:14,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254683746] [2022-09-16 11:35:14,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254683746] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:14,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:14,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:14,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723317373] [2022-09-16 11:35:14,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:14,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:14,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:14,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:14,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:14,923 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2022-09-16 11:35:14,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 97 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2022-09-16 11:35:14,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:14,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2022-09-16 11:35:14,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:15,016 INFO L130 PetriNetUnfolder]: 20/150 cut-off events. [2022-09-16 11:35:15,016 INFO L131 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2022-09-16 11:35:15,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 150 events. 20/150 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 410 event pairs, 0 based on Foata normal form. 20/167 useless extension candidates. Maximal degree in co-relation 254. Up to 42 conditions per place. [2022-09-16 11:35:15,019 INFO L137 encePairwiseOnDemand]: 90/97 looper letters, 13 selfloop transitions, 4 changer transitions 0/94 dead transitions. [2022-09-16 11:35:15,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 94 transitions, 282 flow [2022-09-16 11:35:15,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:15,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:15,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 340 transitions. [2022-09-16 11:35:15,025 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8762886597938144 [2022-09-16 11:35:15,025 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 340 transitions. [2022-09-16 11:35:15,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 340 transitions. [2022-09-16 11:35:15,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:15,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 340 transitions. [2022-09-16 11:35:15,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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) [2022-09-16 11:35:15,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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) [2022-09-16 11:35:15,029 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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) [2022-09-16 11:35:15,029 INFO L175 Difference]: Start difference. First operand has 105 places, 97 transitions, 280 flow. Second operand 4 states and 340 transitions. [2022-09-16 11:35:15,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 94 transitions, 282 flow [2022-09-16 11:35:15,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 94 transitions, 264 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-09-16 11:35:15,040 INFO L231 Difference]: Finished difference. Result has 102 places, 91 transitions, 228 flow [2022-09-16 11:35:15,040 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=228, PETRI_PLACES=102, PETRI_TRANSITIONS=91} [2022-09-16 11:35:15,041 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2022-09-16 11:35:15,041 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 91 transitions, 228 flow [2022-09-16 11:35:15,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2022-09-16 11:35:15,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:15,042 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-09-16 11:35:15,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:35:15,042 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:15,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:15,043 INFO L85 PathProgramCache]: Analyzing trace with hash 557265369, now seen corresponding path program 1 times [2022-09-16 11:35:15,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:15,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443617238] [2022-09-16 11:35:15,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:15,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:15,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:15,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:15,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443617238] [2022-09-16 11:35:15,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443617238] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:15,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:15,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:35:15,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975999021] [2022-09-16 11:35:15,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:15,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:35:15,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:15,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:35:15,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:35:15,185 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2022-09-16 11:35:15,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 91 transitions, 228 flow. Second operand has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 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) [2022-09-16 11:35:15,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:15,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2022-09-16 11:35:15,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:15,249 INFO L130 PetriNetUnfolder]: 17/200 cut-off events. [2022-09-16 11:35:15,249 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-09-16 11:35:15,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 200 events. 17/200 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 590 event pairs, 0 based on Foata normal form. 6/200 useless extension candidates. Maximal degree in co-relation 264. Up to 18 conditions per place. [2022-09-16 11:35:15,251 INFO L137 encePairwiseOnDemand]: 90/97 looper letters, 0 selfloop transitions, 0 changer transitions 93/93 dead transitions. [2022-09-16 11:35:15,251 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 93 transitions, 258 flow [2022-09-16 11:35:15,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:35:15,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:35:15,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 419 transitions. [2022-09-16 11:35:15,257 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8639175257731959 [2022-09-16 11:35:15,257 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 419 transitions. [2022-09-16 11:35:15,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 419 transitions. [2022-09-16 11:35:15,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:15,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 419 transitions. [2022-09-16 11:35:15,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 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) [2022-09-16 11:35:15,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2022-09-16 11:35:15,260 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2022-09-16 11:35:15,260 INFO L175 Difference]: Start difference. First operand has 102 places, 91 transitions, 228 flow. Second operand 5 states and 419 transitions. [2022-09-16 11:35:15,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 93 transitions, 258 flow [2022-09-16 11:35:15,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 93 transitions, 243 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:35:15,263 INFO L231 Difference]: Finished difference. Result has 99 places, 0 transitions, 0 flow [2022-09-16 11:35:15,263 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=99, PETRI_TRANSITIONS=0} [2022-09-16 11:35:15,265 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, -3 predicate places. [2022-09-16 11:35:15,266 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 0 transitions, 0 flow [2022-09-16 11:35:15,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 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) [2022-09-16 11:35:15,269 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-09-16 11:35:15,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-09-16 11:35:15,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-09-16 11:35:15,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-09-16 11:35:15,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-09-16 11:35:15,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-09-16 11:35:15,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-09-16 11:35:15,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-09-16 11:35:15,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-09-16 11:35:15,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-09-16 11:35:15,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-09-16 11:35:15,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-09-16 11:35:15,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-09-16 11:35:15,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-09-16 11:35:15,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-09-16 11:35:15,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:35:15,273 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-09-16 11:35:15,281 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:35:15,281 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:35:15,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:35:15 BasicIcfg [2022-09-16 11:35:15,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:35:15,288 INFO L158 Benchmark]: Toolchain (without parser) took 2688.35ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 119.4MB in the beginning and 101.1MB in the end (delta: 18.3MB). Peak memory consumption was 54.4MB. Max. memory is 8.0GB. [2022-09-16 11:35:15,289 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 177.2MB. Free memory was 137.2MB in the beginning and 137.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:35:15,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 489.56ms. Allocated memory is still 177.2MB. Free memory was 119.1MB in the beginning and 141.6MB in the end (delta: -22.5MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. [2022-09-16 11:35:15,290 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.01ms. Allocated memory is still 177.2MB. Free memory was 141.6MB in the beginning and 139.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:35:15,292 INFO L158 Benchmark]: Boogie Preprocessor took 38.88ms. Allocated memory is still 177.2MB. Free memory was 139.3MB in the beginning and 138.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 11:35:15,295 INFO L158 Benchmark]: RCFGBuilder took 461.23ms. Allocated memory is still 177.2MB. Free memory was 137.9MB in the beginning and 123.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-09-16 11:35:15,301 INFO L158 Benchmark]: TraceAbstraction took 1623.49ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 122.5MB in the beginning and 101.1MB in the end (delta: 21.4MB). Peak memory consumption was 57.8MB. Max. memory is 8.0GB. [2022-09-16 11:35:15,305 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 177.2MB. Free memory was 137.2MB in the beginning and 137.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 489.56ms. Allocated memory is still 177.2MB. Free memory was 119.1MB in the beginning and 141.6MB in the end (delta: -22.5MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.01ms. Allocated memory is still 177.2MB. Free memory was 141.6MB in the beginning and 139.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.88ms. Allocated memory is still 177.2MB. Free memory was 139.3MB in the beginning and 138.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 461.23ms. Allocated memory is still 177.2MB. Free memory was 137.9MB in the beginning and 123.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1623.49ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 122.5MB in the beginning and 101.1MB in the end (delta: 21.4MB). Peak memory consumption was 57.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: 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, 126 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: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 10 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=280occurred in iteration=2, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 404 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! [2022-09-16 11:35:15,345 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...