/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_power.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:35:35,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:35:35,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:35:35,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:35:35,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:35:35,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:35:35,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:35:35,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:35:35,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:35:35,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:35:35,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:35:35,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:35:35,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:35:35,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:35:35,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:35:35,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:35:35,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:35:35,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:35:35,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:35:35,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:35:35,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:35:35,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:35:35,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:35:35,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:35:35,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:35:35,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:35:35,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:35:35,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:35:35,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:35:35,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:35:35,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:35:35,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:35:35,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:35:35,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:35:35,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:35:35,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:35:35,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:35:35,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:35:35,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:35:35,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:35:35,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:35:35,353 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:35:35,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:35:35,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:35:35,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:35:35,382 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:35:35,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:35:35,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:35:35,383 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:35:35,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:35:35,383 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:35:35,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:35:35,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:35:35,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:35:35,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:35:35,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:35:35,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:35:35,384 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:35:35,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:35:35,384 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:35:35,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:35:35,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:35:35,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:35:35,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:35:35,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:35:35,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:35,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:35:35,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:35:35,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:35:35,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:35:35,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:35:35,386 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:35:35,386 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:35:35,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:35:35,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:35:35,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:35:35,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:35:35,632 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:35:35,635 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:35:35,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_power.i [2022-09-16 11:35:35,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81686797/11355a24ba434dcaa8432775aad8de9c/FLAG714d55f13 [2022-09-16 11:35:36,229 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:35:36,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_power.i [2022-09-16 11:35:36,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81686797/11355a24ba434dcaa8432775aad8de9c/FLAG714d55f13 [2022-09-16 11:35:36,709 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81686797/11355a24ba434dcaa8432775aad8de9c [2022-09-16 11:35:36,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:35:36,712 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:35:36,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:36,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:35:36,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:35:36,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:36" (1/1) ... [2022-09-16 11:35:36,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c277432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:36, skipping insertion in model container [2022-09-16 11:35:36,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:36" (1/1) ... [2022-09-16 11:35:36,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:35:36,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:35:36,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_power.i[947,960] [2022-09-16 11:35:37,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:37,293 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:35:37,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_power.i[947,960] [2022-09-16 11:35:37,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:37,395 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:35:37,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:37 WrapperNode [2022-09-16 11:35:37,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:37,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:37,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:35:37,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:35:37,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:37" (1/1) ... [2022-09-16 11:35:37,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:37" (1/1) ... [2022-09-16 11:35:37,502 INFO L138 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 486 [2022-09-16 11:35:37,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:37,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:35:37,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:35:37,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:35:37,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:37" (1/1) ... [2022-09-16 11:35:37,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:37" (1/1) ... [2022-09-16 11:35:37,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:37" (1/1) ... [2022-09-16 11:35:37,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:37" (1/1) ... [2022-09-16 11:35:37,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:37" (1/1) ... [2022-09-16 11:35:37,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:37" (1/1) ... [2022-09-16 11:35:37,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:37" (1/1) ... [2022-09-16 11:35:37,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:35:37,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:35:37,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:35:37,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:35:37,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:37" (1/1) ... [2022-09-16 11:35:37,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:37,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:35:37,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 11:35:37,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 11:35:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:35:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:35:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:35:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:35:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:35:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:35:37,664 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:35:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:35:37,665 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:35:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:35:37,668 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:35:37,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:35:37,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:35:37,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:35:37,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:35:37,671 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:35:37,875 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:35:37,877 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:35:38,804 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:35:39,628 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:35:39,629 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:35:39,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:39 BoogieIcfgContainer [2022-09-16 11:35:39,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:35:39,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:35:39,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:35:39,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:35:39,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:35:36" (1/3) ... [2022-09-16 11:35:39,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522460b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:39, skipping insertion in model container [2022-09-16 11:35:39,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:37" (2/3) ... [2022-09-16 11:35:39,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522460b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:39, skipping insertion in model container [2022-09-16 11:35:39,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:39" (3/3) ... [2022-09-16 11:35:39,638 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2022-09-16 11:35:39,655 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:35:39,656 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 11:35:39,656 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:35:39,747 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:35:39,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 123 transitions, 261 flow [2022-09-16 11:35:39,839 INFO L130 PetriNetUnfolder]: 2/120 cut-off events. [2022-09-16 11:35:39,839 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:39,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 120 events. 2/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2022-09-16 11:35:39,844 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 123 transitions, 261 flow [2022-09-16 11:35:39,854 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 120 transitions, 249 flow [2022-09-16 11:35:39,872 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:35:39,881 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c9bf0cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:35:39,881 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-09-16 11:35:39,897 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2022-09-16 11:35:39,898 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:39,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:39,899 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:39,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:39,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:39,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1278627279, now seen corresponding path program 1 times [2022-09-16 11:35:39,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:39,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944837244] [2022-09-16 11:35:39,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:39,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:40,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:40,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:40,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944837244] [2022-09-16 11:35:40,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944837244] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:40,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:40,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:35:40,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735749478] [2022-09-16 11:35:40,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:40,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:35:40,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:40,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:35:40,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:35:40,289 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 123 [2022-09-16 11:35:40,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 120 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:40,296 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:40,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 123 [2022-09-16 11:35:40,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:41,450 INFO L130 PetriNetUnfolder]: 1501/3899 cut-off events. [2022-09-16 11:35:41,450 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-09-16 11:35:41,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6236 conditions, 3899 events. 1501/3899 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 34267 event pairs, 568 based on Foata normal form. 271/3768 useless extension candidates. Maximal degree in co-relation 6183. Up to 1527 conditions per place. [2022-09-16 11:35:41,486 INFO L137 encePairwiseOnDemand]: 111/123 looper letters, 38 selfloop transitions, 4 changer transitions 0/134 dead transitions. [2022-09-16 11:35:41,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 134 transitions, 367 flow [2022-09-16 11:35:41,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:35:41,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:35:41,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2022-09-16 11:35:41,499 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9132791327913279 [2022-09-16 11:35:41,500 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 337 transitions. [2022-09-16 11:35:41,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 337 transitions. [2022-09-16 11:35:41,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:41,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 337 transitions. [2022-09-16 11:35:41,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:41,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:41,515 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:41,516 INFO L175 Difference]: Start difference. First operand has 128 places, 120 transitions, 249 flow. Second operand 3 states and 337 transitions. [2022-09-16 11:35:41,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 134 transitions, 367 flow [2022-09-16 11:35:41,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 134 transitions, 362 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:35:41,524 INFO L231 Difference]: Finished difference. Result has 127 places, 120 transitions, 276 flow [2022-09-16 11:35:41,526 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=127, PETRI_TRANSITIONS=120} [2022-09-16 11:35:41,529 INFO L287 CegarLoopForPetriNet]: 128 programPoint places, -1 predicate places. [2022-09-16 11:35:41,529 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 120 transitions, 276 flow [2022-09-16 11:35:41,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:41,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:41,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:41,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:35:41,530 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:41,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:41,531 INFO L85 PathProgramCache]: Analyzing trace with hash 742213274, now seen corresponding path program 1 times [2022-09-16 11:35:41,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:41,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436152420] [2022-09-16 11:35:41,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:41,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:41,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:41,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:41,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436152420] [2022-09-16 11:35:41,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436152420] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:41,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:41,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:41,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066405166] [2022-09-16 11:35:41,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:41,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:41,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:41,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:41,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:41,693 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 123 [2022-09-16 11:35:41,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 120 transitions, 276 flow. Second operand has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:41,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:41,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 123 [2022-09-16 11:35:41,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:42,611 INFO L130 PetriNetUnfolder]: 1265/3533 cut-off events. [2022-09-16 11:35:42,612 INFO L131 PetriNetUnfolder]: For 141/141 co-relation queries the response was YES. [2022-09-16 11:35:42,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6180 conditions, 3533 events. 1265/3533 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 31405 event pairs, 504 based on Foata normal form. 0/3301 useless extension candidates. Maximal degree in co-relation 6127. Up to 928 conditions per place. [2022-09-16 11:35:42,644 INFO L137 encePairwiseOnDemand]: 113/123 looper letters, 48 selfloop transitions, 10 changer transitions 3/153 dead transitions. [2022-09-16 11:35:42,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 153 transitions, 482 flow [2022-09-16 11:35:42,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:42,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:42,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 444 transitions. [2022-09-16 11:35:42,651 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9024390243902439 [2022-09-16 11:35:42,652 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 444 transitions. [2022-09-16 11:35:42,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 444 transitions. [2022-09-16 11:35:42,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:42,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 444 transitions. [2022-09-16 11:35:42,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:42,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:42,659 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:42,660 INFO L175 Difference]: Start difference. First operand has 127 places, 120 transitions, 276 flow. Second operand 4 states and 444 transitions. [2022-09-16 11:35:42,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 153 transitions, 482 flow [2022-09-16 11:35:42,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 153 transitions, 478 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:35:42,667 INFO L231 Difference]: Finished difference. Result has 131 places, 123 transitions, 332 flow [2022-09-16 11:35:42,668 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=332, PETRI_PLACES=131, PETRI_TRANSITIONS=123} [2022-09-16 11:35:42,669 INFO L287 CegarLoopForPetriNet]: 128 programPoint places, 3 predicate places. [2022-09-16 11:35:42,669 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 123 transitions, 332 flow [2022-09-16 11:35:42,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:42,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:42,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:42,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:35:42,670 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:42,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:42,671 INFO L85 PathProgramCache]: Analyzing trace with hash -349149605, now seen corresponding path program 1 times [2022-09-16 11:35:42,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:42,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279744922] [2022-09-16 11:35:42,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:42,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:42,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:42,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:42,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279744922] [2022-09-16 11:35:42,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279744922] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:42,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:42,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:42,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102880315] [2022-09-16 11:35:42,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:42,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:42,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:42,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:42,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:42,794 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 123 [2022-09-16 11:35:42,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 123 transitions, 332 flow. Second operand has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:42,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:42,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 123 [2022-09-16 11:35:42,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:43,530 INFO L130 PetriNetUnfolder]: 1057/3155 cut-off events. [2022-09-16 11:35:43,531 INFO L131 PetriNetUnfolder]: For 1201/1201 co-relation queries the response was YES. [2022-09-16 11:35:43,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5493 conditions, 3155 events. 1057/3155 cut-off events. For 1201/1201 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 27594 event pairs, 492 based on Foata normal form. 110/3179 useless extension candidates. Maximal degree in co-relation 5437. Up to 822 conditions per place. [2022-09-16 11:35:43,559 INFO L137 encePairwiseOnDemand]: 116/123 looper letters, 35 selfloop transitions, 4 changer transitions 0/131 dead transitions. [2022-09-16 11:35:43,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 131 transitions, 400 flow [2022-09-16 11:35:43,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:43,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:43,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 422 transitions. [2022-09-16 11:35:43,561 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8577235772357723 [2022-09-16 11:35:43,561 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 422 transitions. [2022-09-16 11:35:43,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 422 transitions. [2022-09-16 11:35:43,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:43,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 422 transitions. [2022-09-16 11:35:43,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:43,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:43,564 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:43,564 INFO L175 Difference]: Start difference. First operand has 131 places, 123 transitions, 332 flow. Second operand 4 states and 422 transitions. [2022-09-16 11:35:43,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 131 transitions, 400 flow [2022-09-16 11:35:43,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 131 transitions, 382 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-09-16 11:35:43,577 INFO L231 Difference]: Finished difference. Result has 128 places, 117 transitions, 280 flow [2022-09-16 11:35:43,577 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=280, PETRI_PLACES=128, PETRI_TRANSITIONS=117} [2022-09-16 11:35:43,578 INFO L287 CegarLoopForPetriNet]: 128 programPoint places, 0 predicate places. [2022-09-16 11:35:43,578 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 117 transitions, 280 flow [2022-09-16 11:35:43,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:43,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:43,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:43,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:35:43,579 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:43,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:43,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1351607812, now seen corresponding path program 1 times [2022-09-16 11:35:43,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:43,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342928915] [2022-09-16 11:35:43,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:43,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:43,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:43,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:43,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342928915] [2022-09-16 11:35:43,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342928915] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:43,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:43,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:35:43,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703442528] [2022-09-16 11:35:43,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:43,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:35:43,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:43,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:35:43,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:35:43,744 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 123 [2022-09-16 11:35:43,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 117 transitions, 280 flow. Second operand has 5 states, 5 states have (on average 98.2) internal successors, (491), 5 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:43,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:43,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 123 [2022-09-16 11:35:43,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:44,427 INFO L130 PetriNetUnfolder]: 1048/3675 cut-off events. [2022-09-16 11:35:44,427 INFO L131 PetriNetUnfolder]: For 1078/1078 co-relation queries the response was YES. [2022-09-16 11:35:44,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5967 conditions, 3675 events. 1048/3675 cut-off events. For 1078/1078 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 34233 event pairs, 576 based on Foata normal form. 12/3516 useless extension candidates. Maximal degree in co-relation 5912. Up to 748 conditions per place. [2022-09-16 11:35:44,444 INFO L137 encePairwiseOnDemand]: 116/123 looper letters, 0 selfloop transitions, 0 changer transitions 141/141 dead transitions. [2022-09-16 11:35:44,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 141 transitions, 420 flow [2022-09-16 11:35:44,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:35:44,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:35:44,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 527 transitions. [2022-09-16 11:35:44,447 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8569105691056911 [2022-09-16 11:35:44,447 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 527 transitions. [2022-09-16 11:35:44,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 527 transitions. [2022-09-16 11:35:44,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:44,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 527 transitions. [2022-09-16 11:35:44,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:44,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:44,451 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:44,451 INFO L175 Difference]: Start difference. First operand has 128 places, 117 transitions, 280 flow. Second operand 5 states and 527 transitions. [2022-09-16 11:35:44,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 141 transitions, 420 flow [2022-09-16 11:35:44,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 141 transitions, 405 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:35:44,454 INFO L231 Difference]: Finished difference. Result has 125 places, 0 transitions, 0 flow [2022-09-16 11:35:44,454 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=125, PETRI_TRANSITIONS=0} [2022-09-16 11:35:44,457 INFO L287 CegarLoopForPetriNet]: 128 programPoint places, -3 predicate places. [2022-09-16 11:35:44,457 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 0 transitions, 0 flow [2022-09-16 11:35:44,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 98.2) internal successors, (491), 5 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:44,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-09-16 11:35:44,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-09-16 11:35:44,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-09-16 11:35:44,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-09-16 11:35:44,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-09-16 11:35:44,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-09-16 11:35:44,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-09-16 11:35:44,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-09-16 11:35:44,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-09-16 11:35:44,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-09-16 11:35:44,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-09-16 11:35:44,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-09-16 11:35:44,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-09-16 11:35:44,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-09-16 11:35:44,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-09-16 11:35:44,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:35:44,472 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-09-16 11:35:44,480 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:35:44,480 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:35:44,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:35:44 BasicIcfg [2022-09-16 11:35:44,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:35:44,491 INFO L158 Benchmark]: Toolchain (without parser) took 7778.43ms. Allocated memory was 196.1MB in the beginning and 502.3MB in the end (delta: 306.2MB). Free memory was 172.4MB in the beginning and 288.8MB in the end (delta: -116.4MB). Peak memory consumption was 357.2MB. Max. memory is 8.0GB. [2022-09-16 11:35:44,491 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 196.1MB. Free memory is still 156.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:35:44,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 682.89ms. Allocated memory was 196.1MB in the beginning and 235.9MB in the end (delta: 39.8MB). Free memory was 172.1MB in the beginning and 192.6MB in the end (delta: -20.4MB). Peak memory consumption was 22.5MB. Max. memory is 8.0GB. [2022-09-16 11:35:44,492 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.31ms. Allocated memory is still 235.9MB. Free memory was 192.6MB in the beginning and 188.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-09-16 11:35:44,493 INFO L158 Benchmark]: Boogie Preprocessor took 84.84ms. Allocated memory is still 235.9MB. Free memory was 188.7MB in the beginning and 185.2MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:35:44,494 INFO L158 Benchmark]: RCFGBuilder took 2041.64ms. Allocated memory is still 235.9MB. Free memory was 185.2MB in the beginning and 159.1MB in the end (delta: 26.1MB). Peak memory consumption was 109.0MB. Max. memory is 8.0GB. [2022-09-16 11:35:44,494 INFO L158 Benchmark]: TraceAbstraction took 4857.73ms. Allocated memory was 235.9MB in the beginning and 502.3MB in the end (delta: 266.3MB). Free memory was 158.6MB in the beginning and 288.8MB in the end (delta: -130.2MB). Peak memory consumption was 303.4MB. Max. memory is 8.0GB. [2022-09-16 11:35:44,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 196.1MB. Free memory is still 156.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 682.89ms. Allocated memory was 196.1MB in the beginning and 235.9MB in the end (delta: 39.8MB). Free memory was 172.1MB in the beginning and 192.6MB in the end (delta: -20.4MB). Peak memory consumption was 22.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 106.31ms. Allocated memory is still 235.9MB. Free memory was 192.6MB in the beginning and 188.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 84.84ms. Allocated memory is still 235.9MB. Free memory was 188.7MB in the beginning and 185.2MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 2041.64ms. Allocated memory is still 235.9MB. Free memory was 185.2MB in the beginning and 159.1MB in the end (delta: 26.1MB). Peak memory consumption was 109.0MB. Max. memory is 8.0GB. * TraceAbstraction took 4857.73ms. Allocated memory was 235.9MB in the beginning and 502.3MB in the end (delta: 266.3MB). Free memory was 158.6MB in the beginning and 288.8MB in the end (delta: -130.2MB). Peak memory consumption was 303.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 853]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 853]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 158 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 237 IncrementalHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 10 mSDtfsCounter, 237 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 248 ConstructedInterpolants, 0 QuantifiedInterpolants, 680 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:35:44,537 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...