./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/weaver/chl-exp-term-symm.wvr.c -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 79419a4ba87d66b20bd1eac3a57771b6df78d8c052d6832c2c2f61b321d58321 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 14:46:05,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 14:46:05,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 14:46:05,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 14:46:05,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 14:46:05,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 14:46:05,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 14:46:05,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 14:46:05,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 14:46:05,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 14:46:05,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 14:46:05,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 14:46:05,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 14:46:05,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 14:46:05,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 14:46:05,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 14:46:05,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 14:46:05,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 14:46:05,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 14:46:05,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 14:46:05,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 14:46:05,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 14:46:05,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 14:46:05,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 14:46:05,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 14:46:05,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 14:46:05,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 14:46:05,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 14:46:05,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 14:46:05,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 14:46:05,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 14:46:05,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 14:46:05,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 14:46:05,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 14:46:05,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 14:46:05,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 14:46:05,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 14:46:05,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 14:46:05,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 14:46:05,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 14:46:05,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 14:46:05,130 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 14:46:05,144 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 14:46:05,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 14:46:05,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 14:46:05,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 14:46:05,148 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 14:46:05,148 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 14:46:05,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 14:46:05,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 14:46:05,149 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 14:46:05,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 14:46:05,150 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 14:46:05,150 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 14:46:05,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 14:46:05,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 14:46:05,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 14:46:05,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 14:46:05,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 14:46:05,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 14:46:05,151 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 14:46:05,151 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 14:46:05,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 14:46:05,151 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 14:46:05,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 14:46:05,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 14:46:05,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 14:46:05,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 14:46:05,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:46:05,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 14:46:05,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 14:46:05,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 14:46:05,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 14:46:05,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 14:46:05,153 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 14:46:05,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 14:46:05,153 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 14:46:05,153 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 14:46:05,154 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 14:46:05,154 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79419a4ba87d66b20bd1eac3a57771b6df78d8c052d6832c2c2f61b321d58321 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 14:46:05,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 14:46:05,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 14:46:05,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 14:46:05,405 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 14:46:05,405 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 14:46:05,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2023-08-30 14:46:06,243 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 14:46:06,408 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 14:46:06,409 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2023-08-30 14:46:06,413 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f5d03937/3c981b7993f1474dbc0725a692b32b41/FLAG97a5e18c9 [2023-08-30 14:46:06,422 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f5d03937/3c981b7993f1474dbc0725a692b32b41 [2023-08-30 14:46:06,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 14:46:06,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 14:46:06,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 14:46:06,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 14:46:06,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 14:46:06,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:46:06" (1/1) ... [2023-08-30 14:46:06,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca5355b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:46:06, skipping insertion in model container [2023-08-30 14:46:06,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:46:06" (1/1) ... [2023-08-30 14:46:06,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 14:46:06,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 14:46:06,574 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c[2628,2641] [2023-08-30 14:46:06,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:46:06,590 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 14:46:06,617 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c[2628,2641] [2023-08-30 14:46:06,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:46:06,631 INFO L208 MainTranslator]: Completed translation [2023-08-30 14:46:06,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:46:06 WrapperNode [2023-08-30 14:46:06,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 14:46:06,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 14:46:06,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 14:46:06,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 14:46:06,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:46:06" (1/1) ... [2023-08-30 14:46:06,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:46:06" (1/1) ... [2023-08-30 14:46:06,674 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 160 [2023-08-30 14:46:06,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 14:46:06,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 14:46:06,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 14:46:06,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 14:46:06,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:46:06" (1/1) ... [2023-08-30 14:46:06,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:46:06" (1/1) ... [2023-08-30 14:46:06,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:46:06" (1/1) ... [2023-08-30 14:46:06,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:46:06" (1/1) ... [2023-08-30 14:46:06,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:46:06" (1/1) ... [2023-08-30 14:46:06,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:46:06" (1/1) ... [2023-08-30 14:46:06,708 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:46:06" (1/1) ... [2023-08-30 14:46:06,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:46:06" (1/1) ... [2023-08-30 14:46:06,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 14:46:06,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 14:46:06,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 14:46:06,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 14:46:06,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:46:06" (1/1) ... [2023-08-30 14:46:06,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:46:06,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:46:06,739 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 14:46:06,764 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 14:46:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 14:46:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 14:46:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 14:46:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 14:46:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 14:46:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 14:46:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 14:46:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 14:46:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 14:46:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 14:46:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 14:46:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 14:46:06,778 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 14:46:06,896 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 14:46:06,897 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 14:46:07,125 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 14:46:07,132 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 14:46:07,136 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 14:46:07,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:46:07 BoogieIcfgContainer [2023-08-30 14:46:07,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 14:46:07,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 14:46:07,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 14:46:07,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 14:46:07,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 02:46:06" (1/3) ... [2023-08-30 14:46:07,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d75f292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:46:07, skipping insertion in model container [2023-08-30 14:46:07,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:46:06" (2/3) ... [2023-08-30 14:46:07,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d75f292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:46:07, skipping insertion in model container [2023-08-30 14:46:07,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:46:07" (3/3) ... [2023-08-30 14:46:07,149 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2023-08-30 14:46:07,153 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 14:46:07,159 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 14:46:07,160 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-08-30 14:46:07,160 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 14:46:07,260 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 14:46:07,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 189 places, 199 transitions, 414 flow [2023-08-30 14:46:07,341 INFO L130 PetriNetUnfolder]: 17/197 cut-off events. [2023-08-30 14:46:07,341 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 14:46:07,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 197 events. 17/197 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 431 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 133. Up to 2 conditions per place. [2023-08-30 14:46:07,346 INFO L82 GeneralOperation]: Start removeDead. Operand has 189 places, 199 transitions, 414 flow [2023-08-30 14:46:07,349 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 169 transitions, 347 flow [2023-08-30 14:46:07,352 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:46:07,357 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 169 transitions, 347 flow [2023-08-30 14:46:07,359 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 169 transitions, 347 flow [2023-08-30 14:46:07,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 169 transitions, 347 flow [2023-08-30 14:46:07,384 INFO L130 PetriNetUnfolder]: 14/169 cut-off events. [2023-08-30 14:46:07,384 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 14:46:07,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 169 events. 14/169 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 386 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 133. Up to 2 conditions per place. [2023-08-30 14:46:07,394 INFO L119 LiptonReduction]: Number of co-enabled transitions 9272 [2023-08-30 14:46:14,574 INFO L134 LiptonReduction]: Checked pairs total: 8355 [2023-08-30 14:46:14,575 INFO L136 LiptonReduction]: Total number of compositions: 215 [2023-08-30 14:46:14,586 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:46:14,590 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;@47d10e47, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:46:14,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-30 14:46:14,592 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-30 14:46:14,592 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:46:14,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:46:14,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:46:14,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-08-30 14:46:14,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:46:14,596 INFO L85 PathProgramCache]: Analyzing trace with hash 817617, now seen corresponding path program 1 times [2023-08-30 14:46:14,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:46:14,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770605598] [2023-08-30 14:46:14,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:46:14,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:46:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:46:14,775 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 14:46:14,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:46:14,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770605598] [2023-08-30 14:46:14,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770605598] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:46:14,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:46:14,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:46:14,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079710383] [2023-08-30 14:46:14,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:46:14,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:46:14,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:46:14,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:46:14,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:46:14,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 414 [2023-08-30 14:46:14,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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 14:46:14,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:46:14,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 414 [2023-08-30 14:46:14,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:46:14,894 INFO L130 PetriNetUnfolder]: 72/143 cut-off events. [2023-08-30 14:46:14,894 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2023-08-30 14:46:14,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 143 events. 72/143 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 491 event pairs, 72 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 256. Up to 143 conditions per place. [2023-08-30 14:46:14,896 INFO L137 encePairwiseOnDemand]: 407/414 looper letters, 14 selfloop transitions, 1 changer transitions 0/15 dead transitions. [2023-08-30 14:46:14,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 15 transitions, 69 flow [2023-08-30 14:46:14,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:46:14,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:46:14,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 576 transitions. [2023-08-30 14:46:14,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.463768115942029 [2023-08-30 14:46:14,912 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 576 transitions. [2023-08-30 14:46:14,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 576 transitions. [2023-08-30 14:46:14,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:46:14,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 576 transitions. [2023-08-30 14:46:14,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 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 14:46:14,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 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 14:46:14,925 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 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 14:46:14,926 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 51 flow. Second operand 3 states and 576 transitions. [2023-08-30 14:46:14,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 15 transitions, 69 flow [2023-08-30 14:46:14,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 15 transitions, 64 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 14:46:14,935 INFO L231 Difference]: Finished difference. Result has 21 places, 15 transitions, 36 flow [2023-08-30 14:46:14,937 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=21, PETRI_TRANSITIONS=15} [2023-08-30 14:46:14,942 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -7 predicate places. [2023-08-30 14:46:14,942 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 36 flow [2023-08-30 14:46:14,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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 14:46:14,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:46:14,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:46:14,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 14:46:14,944 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-08-30 14:46:14,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:46:14,947 INFO L85 PathProgramCache]: Analyzing trace with hash 817655, now seen corresponding path program 1 times [2023-08-30 14:46:14,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:46:14,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084349589] [2023-08-30 14:46:14,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:46:14,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:46:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:46:15,097 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 14:46:15,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:46:15,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084349589] [2023-08-30 14:46:15,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084349589] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:46:15,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:46:15,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:46:15,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541458878] [2023-08-30 14:46:15,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:46:15,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:46:15,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:46:15,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:46:15,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:46:15,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 414 [2023-08-30 14:46:15,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 15 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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 14:46:15,114 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:46:15,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 414 [2023-08-30 14:46:15,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:46:15,149 INFO L130 PetriNetUnfolder]: 45/94 cut-off events. [2023-08-30 14:46:15,149 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 14:46:15,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 94 events. 45/94 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 270 event pairs, 45 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 195. Up to 94 conditions per place. [2023-08-30 14:46:15,151 INFO L137 encePairwiseOnDemand]: 411/414 looper letters, 12 selfloop transitions, 1 changer transitions 0/13 dead transitions. [2023-08-30 14:46:15,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 58 flow [2023-08-30 14:46:15,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:46:15,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:46:15,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 570 transitions. [2023-08-30 14:46:15,153 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45893719806763283 [2023-08-30 14:46:15,153 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 570 transitions. [2023-08-30 14:46:15,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 570 transitions. [2023-08-30 14:46:15,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:46:15,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 570 transitions. [2023-08-30 14:46:15,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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 14:46:15,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 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 14:46:15,157 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 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 14:46:15,157 INFO L175 Difference]: Start difference. First operand has 21 places, 15 transitions, 36 flow. Second operand 3 states and 570 transitions. [2023-08-30 14:46:15,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 58 flow [2023-08-30 14:46:15,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 13 transitions, 57 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:46:15,157 INFO L231 Difference]: Finished difference. Result has 20 places, 13 transitions, 33 flow [2023-08-30 14:46:15,158 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=20, PETRI_TRANSITIONS=13} [2023-08-30 14:46:15,159 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -8 predicate places. [2023-08-30 14:46:15,159 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 13 transitions, 33 flow [2023-08-30 14:46:15,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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 14:46:15,160 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:46:15,160 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:46:15,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 14:46:15,160 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-08-30 14:46:15,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:46:15,162 INFO L85 PathProgramCache]: Analyzing trace with hash 817657, now seen corresponding path program 1 times [2023-08-30 14:46:15,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:46:15,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676001958] [2023-08-30 14:46:15,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:46:15,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:46:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:46:15,259 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 14:46:15,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:46:15,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676001958] [2023-08-30 14:46:15,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676001958] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:46:15,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:46:15,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:46:15,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214754345] [2023-08-30 14:46:15,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:46:15,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:46:15,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:46:15,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:46:15,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:46:15,270 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 414 [2023-08-30 14:46:15,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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 14:46:15,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:46:15,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 414 [2023-08-30 14:46:15,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:46:15,291 INFO L130 PetriNetUnfolder]: 24/55 cut-off events. [2023-08-30 14:46:15,291 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 14:46:15,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 55 events. 24/55 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 119 event pairs, 24 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 115. Up to 55 conditions per place. [2023-08-30 14:46:15,292 INFO L137 encePairwiseOnDemand]: 411/414 looper letters, 10 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2023-08-30 14:46:15,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 11 transitions, 51 flow [2023-08-30 14:46:15,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:46:15,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:46:15,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2023-08-30 14:46:15,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4573268921095008 [2023-08-30 14:46:15,294 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 568 transitions. [2023-08-30 14:46:15,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 568 transitions. [2023-08-30 14:46:15,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:46:15,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 568 transitions. [2023-08-30 14:46:15,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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 14:46:15,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 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 14:46:15,298 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 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 14:46:15,298 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 33 flow. Second operand 3 states and 568 transitions. [2023-08-30 14:46:15,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 11 transitions, 51 flow [2023-08-30 14:46:15,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 11 transitions, 50 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:46:15,299 INFO L231 Difference]: Finished difference. Result has 19 places, 11 transitions, 30 flow [2023-08-30 14:46:15,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=19, PETRI_TRANSITIONS=11} [2023-08-30 14:46:15,299 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -9 predicate places. [2023-08-30 14:46:15,300 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 11 transitions, 30 flow [2023-08-30 14:46:15,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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 14:46:15,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:46:15,302 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:46:15,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 14:46:15,303 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-08-30 14:46:15,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:46:15,303 INFO L85 PathProgramCache]: Analyzing trace with hash 817653, now seen corresponding path program 1 times [2023-08-30 14:46:15,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:46:15,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210638748] [2023-08-30 14:46:15,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:46:15,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:46:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:46:15,340 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 14:46:15,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:46:15,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210638748] [2023-08-30 14:46:15,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210638748] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:46:15,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:46:15,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:46:15,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263839111] [2023-08-30 14:46:15,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:46:15,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:46:15,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:46:15,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:46:15,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:46:15,353 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 414 [2023-08-30 14:46:15,354 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 11 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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 14:46:15,354 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:46:15,354 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 414 [2023-08-30 14:46:15,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:46:15,373 INFO L130 PetriNetUnfolder]: 9/26 cut-off events. [2023-08-30 14:46:15,373 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 14:46:15,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 26 events. 9/26 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 9 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 55. Up to 26 conditions per place. [2023-08-30 14:46:15,375 INFO L137 encePairwiseOnDemand]: 411/414 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2023-08-30 14:46:15,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 9 transitions, 44 flow [2023-08-30 14:46:15,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:46:15,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:46:15,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 566 transitions. [2023-08-30 14:46:15,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4557165861513688 [2023-08-30 14:46:15,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 566 transitions. [2023-08-30 14:46:15,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 566 transitions. [2023-08-30 14:46:15,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:46:15,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 566 transitions. [2023-08-30 14:46:15,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 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 14:46:15,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 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 14:46:15,383 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 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 14:46:15,383 INFO L175 Difference]: Start difference. First operand has 19 places, 11 transitions, 30 flow. Second operand 3 states and 566 transitions. [2023-08-30 14:46:15,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 9 transitions, 44 flow [2023-08-30 14:46:15,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 9 transitions, 43 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:46:15,384 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2023-08-30 14:46:15,384 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2023-08-30 14:46:15,385 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -10 predicate places. [2023-08-30 14:46:15,385 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2023-08-30 14:46:15,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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 14:46:15,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2023-08-30 14:46:15,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-08-30 14:46:15,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-08-30 14:46:15,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-08-30 14:46:15,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-08-30 14:46:15,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-08-30 14:46:15,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-08-30 14:46:15,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-08-30 14:46:15,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-08-30 14:46:15,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-08-30 14:46:15,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-08-30 14:46:15,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-08-30 14:46:15,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2023-08-30 14:46:15,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2023-08-30 14:46:15,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-08-30 14:46:15,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-08-30 14:46:15,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-08-30 14:46:15,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-08-30 14:46:15,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-08-30 14:46:15,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-08-30 14:46:15,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-08-30 14:46:15,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-08-30 14:46:15,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-08-30 14:46:15,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-08-30 14:46:15,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-08-30 14:46:15,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-08-30 14:46:15,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 14:46:15,394 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 14:46:15,399 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 14:46:15,399 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 14:46:15,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 02:46:15 BasicIcfg [2023-08-30 14:46:15,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 14:46:15,402 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 14:46:15,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 14:46:15,403 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 14:46:15,403 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:46:07" (3/4) ... [2023-08-30 14:46:15,404 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 14:46:15,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-30 14:46:15,408 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-30 14:46:15,410 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-08-30 14:46:15,410 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 14:46:15,410 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 14:46:15,410 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 14:46:15,436 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 14:46:15,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 14:46:15,436 INFO L158 Benchmark]: Toolchain (without parser) took 9008.42ms. Allocated memory was 86.0MB in the beginning and 157.3MB in the end (delta: 71.3MB). Free memory was 65.4MB in the beginning and 87.4MB in the end (delta: -22.1MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2023-08-30 14:46:15,437 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 86.0MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 14:46:15,437 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.37ms. Allocated memory is still 86.0MB. Free memory was 65.1MB in the beginning and 53.5MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 14:46:15,437 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.46ms. Allocated memory is still 86.0MB. Free memory was 53.5MB in the beginning and 51.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 14:46:15,437 INFO L158 Benchmark]: Boogie Preprocessor took 40.08ms. Allocated memory is still 86.0MB. Free memory was 51.5MB in the beginning and 50.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 14:46:15,437 INFO L158 Benchmark]: RCFGBuilder took 422.10ms. Allocated memory is still 86.0MB. Free memory was 50.0MB in the beginning and 58.8MB in the end (delta: -8.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 14:46:15,437 INFO L158 Benchmark]: TraceAbstraction took 8263.30ms. Allocated memory was 86.0MB in the beginning and 157.3MB in the end (delta: 71.3MB). Free memory was 58.2MB in the beginning and 90.6MB in the end (delta: -32.4MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2023-08-30 14:46:15,438 INFO L158 Benchmark]: Witness Printer took 33.65ms. Allocated memory is still 157.3MB. Free memory was 90.6MB in the beginning and 87.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 14:46:15,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 86.0MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.37ms. Allocated memory is still 86.0MB. Free memory was 65.1MB in the beginning and 53.5MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.46ms. Allocated memory is still 86.0MB. Free memory was 53.5MB in the beginning and 51.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.08ms. Allocated memory is still 86.0MB. Free memory was 51.5MB in the beginning and 50.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 422.10ms. Allocated memory is still 86.0MB. Free memory was 50.0MB in the beginning and 58.8MB in the end (delta: -8.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8263.30ms. Allocated memory was 86.0MB in the beginning and 157.3MB in the end (delta: 71.3MB). Free memory was 58.2MB in the beginning and 90.6MB in the end (delta: -32.4MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * Witness Printer took 33.65ms. Allocated memory is still 157.3MB. Free memory was 90.6MB in the beginning and 87.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 162 PlacesBefore, 28 PlacesAfterwards, 169 TransitionsBefore, 21 TransitionsAfterwards, 9272 CoEnabledTransitionPairs, 7 FixpointIterations, 33 TrivialSequentialCompositions, 129 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 39 ConcurrentYvCompositions, 14 ChoiceCompositions, 215 TotalNumberOfCompositions, 8355 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8355, independent: 8355, independent conditional: 0, independent unconditional: 8355, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5379, independent: 5379, independent conditional: 0, independent unconditional: 5379, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8355, independent: 2976, independent conditional: 0, independent unconditional: 2976, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 5379, unknown conditional: 0, unknown unconditional: 5379] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: 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 5 procedures, 295 locations, 26 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: 8.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 122 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 101 IncrementalHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 11 mSDtfsCounter, 101 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 14:46:15,455 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