./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 10:46:14,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 10:46:14,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 10:46:14,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 10:46:14,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 10:46:14,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 10:46:14,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 10:46:14,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 10:46:14,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 10:46:14,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 10:46:14,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 10:46:14,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 10:46:14,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 10:46:14,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 10:46:14,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 10:46:14,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 10:46:14,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 10:46:14,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 10:46:14,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 10:46:14,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 10:46:14,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 10:46:14,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 10:46:14,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 10:46:14,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 10:46:14,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 10:46:14,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 10:46:14,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 10:46:14,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 10:46:14,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 10:46:14,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 10:46:14,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 10:46:14,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 10:46:14,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 10:46:14,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 10:46:14,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 10:46:14,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 10:46:14,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 10:46:14,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 10:46:14,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 10:46:14,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 10:46:14,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 10:46:14,583 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 10:46:14,615 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 10:46:14,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 10:46:14,617 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 10:46:14,617 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 10:46:14,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 10:46:14,618 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 10:46:14,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 10:46:14,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 10:46:14,619 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 10:46:14,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 10:46:14,620 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 10:46:14,620 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 10:46:14,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 10:46:14,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 10:46:14,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 10:46:14,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 10:46:14,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 10:46:14,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 10:46:14,621 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 10:46:14,621 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 10:46:14,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 10:46:14,622 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 10:46:14,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 10:46:14,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 10:46:14,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 10:46:14,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 10:46:14,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:46:14,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 10:46:14,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 10:46:14,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 10:46:14,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 10:46:14,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 10:46:14,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 10:46:14,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 10:46:14,624 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 10:46:14,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 10:46:14,625 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 10:46:14,625 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 10:46:14,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 10:46:14,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 10:46:14,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 10:46:14,937 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 10:46:14,937 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 10:46:14,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2023-08-30 10:46:16,196 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 10:46:16,467 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 10:46:16,468 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2023-08-30 10:46:16,479 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a870b227/e50b6abca3c8489ba93d49bcf8d52cd4/FLAG692788d66 [2023-08-30 10:46:16,491 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a870b227/e50b6abca3c8489ba93d49bcf8d52cd4 [2023-08-30 10:46:16,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 10:46:16,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 10:46:16,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 10:46:16,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 10:46:16,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 10:46:16,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:46:16" (1/1) ... [2023-08-30 10:46:16,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f09c4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:16, skipping insertion in model container [2023-08-30 10:46:16,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:46:16" (1/1) ... [2023-08-30 10:46:16,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 10:46:16,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 10:46:16,677 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2023-08-30 10:46:16,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:46:16,852 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 10:46:16,864 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2023-08-30 10:46:16,948 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:46:16,993 INFO L208 MainTranslator]: Completed translation [2023-08-30 10:46:16,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:16 WrapperNode [2023-08-30 10:46:16,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 10:46:16,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 10:46:16,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 10:46:16,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 10:46:17,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:16" (1/1) ... [2023-08-30 10:46:17,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:16" (1/1) ... [2023-08-30 10:46:17,059 INFO L138 Inliner]: procedures = 163, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 117 [2023-08-30 10:46:17,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 10:46:17,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 10:46:17,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 10:46:17,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 10:46:17,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:16" (1/1) ... [2023-08-30 10:46:17,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:16" (1/1) ... [2023-08-30 10:46:17,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:16" (1/1) ... [2023-08-30 10:46:17,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:16" (1/1) ... [2023-08-30 10:46:17,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:16" (1/1) ... [2023-08-30 10:46:17,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:16" (1/1) ... [2023-08-30 10:46:17,100 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:16" (1/1) ... [2023-08-30 10:46:17,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:16" (1/1) ... [2023-08-30 10:46:17,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 10:46:17,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 10:46:17,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 10:46:17,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 10:46:17,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:16" (1/1) ... [2023-08-30 10:46:17,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:46:17,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:46:17,147 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 10:46:17,173 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 10:46:17,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 10:46:17,186 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 10:46:17,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 10:46:17,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 10:46:17,187 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 10:46:17,187 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 10:46:17,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 10:46:17,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 10:46:17,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 10:46:17,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 10:46:17,189 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 10:46:17,372 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 10:46:17,374 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 10:46:17,595 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 10:46:17,602 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 10:46:17,603 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 10:46:17,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:46:17 BoogieIcfgContainer [2023-08-30 10:46:17,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 10:46:17,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 10:46:17,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 10:46:17,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 10:46:17,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:46:16" (1/3) ... [2023-08-30 10:46:17,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23132ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:46:17, skipping insertion in model container [2023-08-30 10:46:17,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:16" (2/3) ... [2023-08-30 10:46:17,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23132ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:46:17, skipping insertion in model container [2023-08-30 10:46:17,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:46:17" (3/3) ... [2023-08-30 10:46:17,613 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2023-08-30 10:46:17,619 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 10:46:17,626 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 10:46:17,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 10:46:17,626 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 10:46:17,688 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 10:46:17,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 129 transitions, 263 flow [2023-08-30 10:46:17,784 INFO L130 PetriNetUnfolder]: 4/131 cut-off events. [2023-08-30 10:46:17,785 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:46:17,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 131 events. 4/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 96 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-08-30 10:46:17,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 129 transitions, 263 flow [2023-08-30 10:46:17,811 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 127 transitions, 257 flow [2023-08-30 10:46:17,815 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 10:46:17,823 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 127 transitions, 257 flow [2023-08-30 10:46:17,826 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 127 transitions, 257 flow [2023-08-30 10:46:17,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 127 transitions, 257 flow [2023-08-30 10:46:17,853 INFO L130 PetriNetUnfolder]: 4/127 cut-off events. [2023-08-30 10:46:17,854 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:46:17,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 127 events. 4/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 88 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-08-30 10:46:17,857 INFO L119 LiptonReduction]: Number of co-enabled transitions 3136 [2023-08-30 10:46:21,665 INFO L134 LiptonReduction]: Checked pairs total: 9507 [2023-08-30 10:46:21,665 INFO L136 LiptonReduction]: Total number of compositions: 113 [2023-08-30 10:46:21,678 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 10:46:21,683 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;@62d296f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 10:46:21,684 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-30 10:46:21,688 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-08-30 10:46:21,688 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:46:21,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:21,689 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 10:46:21,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 10:46:21,694 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:21,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1238990732, now seen corresponding path program 1 times [2023-08-30 10:46:21,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:21,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594317869] [2023-08-30 10:46:21,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:21,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:46:21,953 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 10:46:21,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:46:21,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594317869] [2023-08-30 10:46:21,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594317869] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:46:21,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:46:21,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:46:21,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332190988] [2023-08-30 10:46:21,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:46:21,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:46:21,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:46:21,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:46:21,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:46:22,014 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 242 [2023-08-30 10:46:22,017 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 10:46:22,017 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:46:22,017 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 242 [2023-08-30 10:46:22,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:46:22,098 INFO L130 PetriNetUnfolder]: 97/258 cut-off events. [2023-08-30 10:46:22,098 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:46:22,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 258 events. 97/258 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1120 event pairs, 88 based on Foata normal form. 9/221 useless extension candidates. Maximal degree in co-relation 460. Up to 206 conditions per place. [2023-08-30 10:46:22,105 INFO L137 encePairwiseOnDemand]: 238/242 looper letters, 21 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2023-08-30 10:46:22,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 30 transitions, 107 flow [2023-08-30 10:46:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:46:22,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:46:22,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-08-30 10:46:22,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137741046831956 [2023-08-30 10:46:22,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-08-30 10:46:22,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-08-30 10:46:22,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:46:22,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-08-30 10:46:22,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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 10:46:22,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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 10:46:22,142 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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 10:46:22,144 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 71 flow. Second operand 3 states and 373 transitions. [2023-08-30 10:46:22,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 30 transitions, 107 flow [2023-08-30 10:46:22,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 30 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:46:22,149 INFO L231 Difference]: Finished difference. Result has 34 places, 30 transitions, 64 flow [2023-08-30 10:46:22,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=34, PETRI_TRANSITIONS=30} [2023-08-30 10:46:22,155 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-08-30 10:46:22,156 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 30 transitions, 64 flow [2023-08-30 10:46:22,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 10:46:22,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:22,157 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 10:46:22,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 10:46:22,158 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 10:46:22,160 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:22,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1238990789, now seen corresponding path program 1 times [2023-08-30 10:46:22,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:22,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25134389] [2023-08-30 10:46:22,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:22,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:46:22,254 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 10:46:22,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:46:22,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25134389] [2023-08-30 10:46:22,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25134389] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:46:22,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:46:22,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:46:22,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607980491] [2023-08-30 10:46:22,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:46:22,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:46:22,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:46:22,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:46:22,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:46:22,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 242 [2023-08-30 10:46:22,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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 10:46:22,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:46:22,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 242 [2023-08-30 10:46:22,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:46:22,323 INFO L130 PetriNetUnfolder]: 85/233 cut-off events. [2023-08-30 10:46:22,323 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:46:22,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 233 events. 85/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 984 event pairs, 77 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 415. Up to 182 conditions per place. [2023-08-30 10:46:22,325 INFO L137 encePairwiseOnDemand]: 240/242 looper letters, 14 selfloop transitions, 1 changer transitions 6/29 dead transitions. [2023-08-30 10:46:22,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 29 transitions, 104 flow [2023-08-30 10:46:22,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:46:22,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:46:22,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-08-30 10:46:22,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137741046831956 [2023-08-30 10:46:22,328 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-08-30 10:46:22,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-08-30 10:46:22,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:46:22,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-08-30 10:46:22,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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 10:46:22,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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 10:46:22,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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 10:46:22,335 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 64 flow. Second operand 3 states and 373 transitions. [2023-08-30 10:46:22,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 29 transitions, 104 flow [2023-08-30 10:46:22,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 103 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:46:22,336 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 51 flow [2023-08-30 10:46:22,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-08-30 10:46:22,337 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-08-30 10:46:22,338 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 51 flow [2023-08-30 10:46:22,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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 10:46:22,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:22,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:46:22,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 10:46:22,340 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 10:46:22,341 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:22,342 INFO L85 PathProgramCache]: Analyzing trace with hash -309011210, now seen corresponding path program 1 times [2023-08-30 10:46:22,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:22,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534951811] [2023-08-30 10:46:22,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:22,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:46:22,471 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 10:46:22,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:46:22,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534951811] [2023-08-30 10:46:22,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534951811] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:46:22,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:46:22,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 10:46:22,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128863810] [2023-08-30 10:46:22,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:46:22,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 10:46:22,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:46:22,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 10:46:22,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 10:46:22,510 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 242 [2023-08-30 10:46:22,511 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 51 flow. Second operand has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 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 10:46:22,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:46:22,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 242 [2023-08-30 10:46:22,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:46:22,597 INFO L130 PetriNetUnfolder]: 61/186 cut-off events. [2023-08-30 10:46:22,598 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:46:22,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 186 events. 61/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 748 event pairs, 28 based on Foata normal form. 8/185 useless extension candidates. Maximal degree in co-relation 334. Up to 80 conditions per place. [2023-08-30 10:46:22,602 INFO L137 encePairwiseOnDemand]: 237/242 looper letters, 17 selfloop transitions, 2 changer transitions 14/39 dead transitions. [2023-08-30 10:46:22,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 39 transitions, 149 flow [2023-08-30 10:46:22,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 10:46:22,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 10:46:22,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 612 transitions. [2023-08-30 10:46:22,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5057851239669422 [2023-08-30 10:46:22,605 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 612 transitions. [2023-08-30 10:46:22,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 612 transitions. [2023-08-30 10:46:22,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:46:22,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 612 transitions. [2023-08-30 10:46:22,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.4) internal successors, (612), 5 states have internal predecessors, (612), 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 10:46:22,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 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 10:46:22,612 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 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 10:46:22,612 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 51 flow. Second operand 5 states and 612 transitions. [2023-08-30 10:46:22,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 39 transitions, 149 flow [2023-08-30 10:46:22,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 39 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:46:22,614 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 66 flow [2023-08-30 10:46:22,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=66, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2023-08-30 10:46:22,616 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-08-30 10:46:22,616 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 66 flow [2023-08-30 10:46:22,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 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 10:46:22,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:22,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:46:22,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 10:46:22,617 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 10:46:22,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:22,618 INFO L85 PathProgramCache]: Analyzing trace with hash -787326699, now seen corresponding path program 1 times [2023-08-30 10:46:22,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:22,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375376834] [2023-08-30 10:46:22,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:22,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:46:22,701 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 10:46:22,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:46:22,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375376834] [2023-08-30 10:46:22,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375376834] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:46:22,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:46:22,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 10:46:22,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280013572] [2023-08-30 10:46:22,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:46:22,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:46:22,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:46:22,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:46:22,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:46:22,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 242 [2023-08-30 10:46:22,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 10:46:22,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:46:22,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 242 [2023-08-30 10:46:22,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:46:22,781 INFO L130 PetriNetUnfolder]: 35/114 cut-off events. [2023-08-30 10:46:22,781 INFO L131 PetriNetUnfolder]: For 19/27 co-relation queries the response was YES. [2023-08-30 10:46:22,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 114 events. 35/114 cut-off events. For 19/27 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 355 event pairs, 14 based on Foata normal form. 8/122 useless extension candidates. Maximal degree in co-relation 233. Up to 61 conditions per place. [2023-08-30 10:46:22,782 INFO L137 encePairwiseOnDemand]: 234/242 looper letters, 18 selfloop transitions, 8 changer transitions 1/32 dead transitions. [2023-08-30 10:46:22,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 32 transitions, 142 flow [2023-08-30 10:46:22,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:46:22,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:46:22,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2023-08-30 10:46:22,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-08-30 10:46:22,786 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 363 transitions. [2023-08-30 10:46:22,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 363 transitions. [2023-08-30 10:46:22,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:46:22,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 363 transitions. [2023-08-30 10:46:22,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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 10:46:22,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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 10:46:22,790 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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 10:46:22,790 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 66 flow. Second operand 3 states and 363 transitions. [2023-08-30 10:46:22,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 32 transitions, 142 flow [2023-08-30 10:46:22,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 32 transitions, 126 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-30 10:46:22,792 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 90 flow [2023-08-30 10:46:22,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-08-30 10:46:22,793 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -3 predicate places. [2023-08-30 10:46:22,793 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 90 flow [2023-08-30 10:46:22,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 10:46:22,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:22,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:46:22,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 10:46:22,794 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 10:46:22,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:22,794 INFO L85 PathProgramCache]: Analyzing trace with hash 558446029, now seen corresponding path program 1 times [2023-08-30 10:46:22,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:22,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80333563] [2023-08-30 10:46:22,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:22,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:46:22,890 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 10:46:22,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:46:22,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80333563] [2023-08-30 10:46:22,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80333563] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:46:22,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:46:22,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 10:46:22,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557972384] [2023-08-30 10:46:22,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:46:22,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 10:46:22,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:46:22,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 10:46:22,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 10:46:22,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 242 [2023-08-30 10:46:22,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 111.6) internal successors, (558), 5 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 10:46:22,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:46:22,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 242 [2023-08-30 10:46:22,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:46:22,997 INFO L130 PetriNetUnfolder]: 32/106 cut-off events. [2023-08-30 10:46:22,998 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2023-08-30 10:46:23,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 106 events. 32/106 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 320 event pairs, 13 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 260. Up to 52 conditions per place. [2023-08-30 10:46:23,001 INFO L137 encePairwiseOnDemand]: 239/242 looper letters, 20 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2023-08-30 10:46:23,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 29 transitions, 148 flow [2023-08-30 10:46:23,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 10:46:23,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 10:46:23,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2023-08-30 10:46:23,003 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47107438016528924 [2023-08-30 10:46:23,003 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 456 transitions. [2023-08-30 10:46:23,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 456 transitions. [2023-08-30 10:46:23,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:46:23,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 456 transitions. [2023-08-30 10:46:23,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 10:46:23,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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 10:46:23,008 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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 10:46:23,008 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 90 flow. Second operand 4 states and 456 transitions. [2023-08-30 10:46:23,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 29 transitions, 148 flow [2023-08-30 10:46:23,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 29 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:46:23,010 INFO L231 Difference]: Finished difference. Result has 33 places, 25 transitions, 84 flow [2023-08-30 10:46:23,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2023-08-30 10:46:23,013 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -2 predicate places. [2023-08-30 10:46:23,013 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 84 flow [2023-08-30 10:46:23,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.6) internal successors, (558), 5 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 10:46:23,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:23,015 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:46:23,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 10:46:23,015 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 10:46:23,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:23,016 INFO L85 PathProgramCache]: Analyzing trace with hash 558446081, now seen corresponding path program 1 times [2023-08-30 10:46:23,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:23,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889231977] [2023-08-30 10:46:23,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:23,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:46:23,201 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 10:46:23,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:46:23,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889231977] [2023-08-30 10:46:23,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889231977] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:46:23,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:46:23,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 10:46:23,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512460430] [2023-08-30 10:46:23,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:46:23,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 10:46:23,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:46:23,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 10:46:23,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 10:46:23,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 242 [2023-08-30 10:46:23,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 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 10:46:23,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:46:23,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 242 [2023-08-30 10:46:23,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:46:23,334 INFO L130 PetriNetUnfolder]: 29/97 cut-off events. [2023-08-30 10:46:23,335 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-08-30 10:46:23,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 97 events. 29/97 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 244 event pairs, 10 based on Foata normal form. 2/99 useless extension candidates. Maximal degree in co-relation 226. Up to 48 conditions per place. [2023-08-30 10:46:23,335 INFO L137 encePairwiseOnDemand]: 236/242 looper letters, 19 selfloop transitions, 9 changer transitions 0/32 dead transitions. [2023-08-30 10:46:23,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 162 flow [2023-08-30 10:46:23,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 10:46:23,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 10:46:23,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 469 transitions. [2023-08-30 10:46:23,337 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.484504132231405 [2023-08-30 10:46:23,337 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 469 transitions. [2023-08-30 10:46:23,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 469 transitions. [2023-08-30 10:46:23,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:46:23,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 469 transitions. [2023-08-30 10:46:23,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 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 10:46:23,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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 10:46:23,341 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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 10:46:23,341 INFO L175 Difference]: Start difference. First operand has 33 places, 25 transitions, 84 flow. Second operand 4 states and 469 transitions. [2023-08-30 10:46:23,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 162 flow [2023-08-30 10:46:23,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 159 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 10:46:23,343 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 125 flow [2023-08-30 10:46:23,343 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=125, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2023-08-30 10:46:23,343 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-08-30 10:46:23,343 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 125 flow [2023-08-30 10:46:23,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 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 10:46:23,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:23,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:46:23,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 10:46:23,345 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 10:46:23,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:23,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1037738816, now seen corresponding path program 1 times [2023-08-30 10:46:23,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:23,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466873877] [2023-08-30 10:46:23,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:23,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 10:46:23,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 10:46:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 10:46:23,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 10:46:23,421 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 10:46:23,422 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-08-30 10:46:23,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-08-30 10:46:23,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2023-08-30 10:46:23,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-30 10:46:23,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-08-30 10:46:23,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-08-30 10:46:23,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-08-30 10:46:23,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 10:46:23,428 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:46:23,433 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 10:46:23,434 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 10:46:23,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:46:23 BasicIcfg [2023-08-30 10:46:23,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 10:46:23,484 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 10:46:23,484 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 10:46:23,484 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 10:46:23,485 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:46:17" (3/4) ... [2023-08-30 10:46:23,486 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-30 10:46:23,546 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 10:46:23,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 10:46:23,547 INFO L158 Benchmark]: Toolchain (without parser) took 7052.06ms. Allocated memory was 69.2MB in the beginning and 161.5MB in the end (delta: 92.3MB). Free memory was 45.6MB in the beginning and 81.9MB in the end (delta: -36.3MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2023-08-30 10:46:23,547 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 69.2MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 10:46:23,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.45ms. Allocated memory was 69.2MB in the beginning and 111.1MB in the end (delta: 41.9MB). Free memory was 45.4MB in the beginning and 84.3MB in the end (delta: -38.9MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2023-08-30 10:46:23,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.32ms. Allocated memory is still 111.1MB. Free memory was 84.3MB in the beginning and 82.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 10:46:23,548 INFO L158 Benchmark]: Boogie Preprocessor took 50.08ms. Allocated memory is still 111.1MB. Free memory was 82.3MB in the beginning and 80.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 10:46:23,548 INFO L158 Benchmark]: RCFGBuilder took 493.82ms. Allocated memory is still 111.1MB. Free memory was 80.8MB in the beginning and 64.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-30 10:46:23,548 INFO L158 Benchmark]: TraceAbstraction took 5876.81ms. Allocated memory was 111.1MB in the beginning and 161.5MB in the end (delta: 50.3MB). Free memory was 64.1MB in the beginning and 86.1MB in the end (delta: -22.1MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2023-08-30 10:46:23,549 INFO L158 Benchmark]: Witness Printer took 62.36ms. Allocated memory is still 161.5MB. Free memory was 86.1MB in the beginning and 81.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 10:46:23,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 69.2MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 498.45ms. Allocated memory was 69.2MB in the beginning and 111.1MB in the end (delta: 41.9MB). Free memory was 45.4MB in the beginning and 84.3MB in the end (delta: -38.9MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.32ms. Allocated memory is still 111.1MB. Free memory was 84.3MB in the beginning and 82.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.08ms. Allocated memory is still 111.1MB. Free memory was 82.3MB in the beginning and 80.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 493.82ms. Allocated memory is still 111.1MB. Free memory was 80.8MB in the beginning and 64.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5876.81ms. Allocated memory was 111.1MB in the beginning and 161.5MB in the end (delta: 50.3MB). Free memory was 64.1MB in the beginning and 86.1MB in the end (delta: -22.1MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Witness Printer took 62.36ms. Allocated memory is still 161.5MB. Free memory was 86.1MB in the beginning and 81.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 127 PlacesBefore, 35 PlacesAfterwards, 127 TransitionsBefore, 34 TransitionsAfterwards, 3136 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 113 TotalNumberOfCompositions, 9507 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3834, independent: 3474, independent conditional: 0, independent unconditional: 3474, dependent: 360, dependent conditional: 0, dependent unconditional: 360, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1717, independent: 1669, independent conditional: 0, independent unconditional: 1669, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3834, independent: 1805, independent conditional: 0, independent unconditional: 1805, dependent: 312, dependent conditional: 0, dependent unconditional: 312, unknown: 1717, unknown conditional: 0, unknown unconditional: 1717] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 92, Positive conditional cache size: 0, Positive unconditional cache size: 92, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 701]: integer overflow possible integer overflow possible We found a FailurePath: [L682] 0 int g = 0; [L683] 0 int h = 0; [L684] 0 int i = 0; [L685] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L686] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L687] 0 pthread_mutex_t C = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L710] 0 int x = __VERIFIER_nondet_int(); [L711] COND TRUE 0 x > -1000 [L712] 0 pthread_t id; [L713] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, id={6:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=2147483617] [L689] 1 int x = __VERIFIER_nondet_int(); [L690] 1 int y = __VERIFIER_nondet_int(); [L691] 1 int z = __VERIFIER_nondet_int(); [L692] COND TRUE 1 x < 1000 [L716] 0 i = 11 VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=11, id={6:0}, x=2147483617] [L717] 0 g = x [L718] EXPR 0 x - 17 [L718] 0 h = x - 17 VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483600, i=11, id={6:0}, x=2147483617] [L721] 0 h = x VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, id={6:0}, x=2147483617] [L695] 1 x = g VAL [A={3:0}, B={4:0}, C={5:0}, arg={0:0}, arg={0:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=0, z=0] [L696] 1 y = h [L697] CALL 1 __VERIFIER_assert(y <= x) [L19] COND FALSE 1 !(!(cond)) [L697] RET 1 __VERIFIER_assert(y <= x) [L699] CALL 1 __VERIFIER_assert(x == y) [L19] COND FALSE 1 !(!(cond)) [L699] RET 1 __VERIFIER_assert(x == y) [L701] 1 x + 31 VAL [A={3:0}, B={4:0}, C={5:0}, arg={0:0}, arg={0:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=2147483617, z=0] - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 179 locations, 7 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: 5.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 395 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 213 mSDsluCounter, 160 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 89 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 502 IncrementalHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 71 mSDtfsCounter, 502 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=6, InterpolantAutomatonStates: 22, 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, 0.6s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 259 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-30 10:46:23,569 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)