/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 00:14:35,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 00:14:35,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 00:14:35,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 00:14:35,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 00:14:35,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 00:14:35,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 00:14:35,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 00:14:35,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 00:14:35,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 00:14:35,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 00:14:35,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 00:14:35,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 00:14:35,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 00:14:35,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 00:14:35,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 00:14:35,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 00:14:35,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 00:14:35,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 00:14:35,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 00:14:35,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 00:14:35,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 00:14:35,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 00:14:35,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 00:14:35,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 00:14:35,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 00:14:35,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 00:14:35,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 00:14:35,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 00:14:35,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 00:14:35,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 00:14:35,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 00:14:35,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 00:14:35,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 00:14:35,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 00:14:35,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 00:14:35,416 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-FA-SemanticLbe.epf [2020-11-12 00:14:35,473 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 00:14:35,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 00:14:35,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 00:14:35,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 00:14:35,478 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 00:14:35,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 00:14:35,478 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 00:14:35,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 00:14:35,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 00:14:35,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 00:14:35,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 00:14:35,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 00:14:35,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 00:14:35,481 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 00:14:35,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 00:14:35,482 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 00:14:35,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 00:14:35,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 00:14:35,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 00:14:35,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 00:14:35,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 00:14:35,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 00:14:35,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 00:14:35,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 00:14:35,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 00:14:35,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 00:14:35,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 00:14:35,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 00:14:35,485 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 00:14:35,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 00:14:35,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 00:14:35,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 00:14:35,907 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 00:14:35,908 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 00:14:35,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i [2020-11-12 00:14:35,992 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/733a493e3/8ef897e3640c48e0a45720618283bd9f/FLAG6866ac57d [2020-11-12 00:14:36,715 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 00:14:36,720 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i [2020-11-12 00:14:36,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/733a493e3/8ef897e3640c48e0a45720618283bd9f/FLAG6866ac57d [2020-11-12 00:14:36,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/733a493e3/8ef897e3640c48e0a45720618283bd9f [2020-11-12 00:14:36,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 00:14:36,974 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 00:14:36,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 00:14:36,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 00:14:36,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 00:14:36,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:14:36" (1/1) ... [2020-11-12 00:14:36,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@351b7331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:36, skipping insertion in model container [2020-11-12 00:14:36,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:14:36" (1/1) ... [2020-11-12 00:14:36,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 00:14:37,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 00:14:37,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 00:14:37,542 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 00:14:37,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 00:14:37,744 INFO L208 MainTranslator]: Completed translation [2020-11-12 00:14:37,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:37 WrapperNode [2020-11-12 00:14:37,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 00:14:37,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 00:14:37,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 00:14:37,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 00:14:37,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:37" (1/1) ... [2020-11-12 00:14:37,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:37" (1/1) ... [2020-11-12 00:14:37,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 00:14:37,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 00:14:37,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 00:14:37,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 00:14:37,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:37" (1/1) ... [2020-11-12 00:14:37,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:37" (1/1) ... [2020-11-12 00:14:37,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:37" (1/1) ... [2020-11-12 00:14:37,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:37" (1/1) ... [2020-11-12 00:14:37,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:37" (1/1) ... [2020-11-12 00:14:37,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:37" (1/1) ... [2020-11-12 00:14:37,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:37" (1/1) ... [2020-11-12 00:14:37,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 00:14:37,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 00:14:37,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 00:14:37,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 00:14:37,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 00:14:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 00:14:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 00:14:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 00:14:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 00:14:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 00:14:37,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 00:14:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 00:14:37,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 00:14:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 00:14:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 00:14:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 00:14:37,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 00:14:37,931 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 00:14:38,484 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 00:14:38,484 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 00:14:38,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:14:38 BoogieIcfgContainer [2020-11-12 00:14:38,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 00:14:38,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 00:14:38,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 00:14:38,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 00:14:38,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:14:36" (1/3) ... [2020-11-12 00:14:38,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cb74a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:14:38, skipping insertion in model container [2020-11-12 00:14:38,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:37" (2/3) ... [2020-11-12 00:14:38,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cb74a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:14:38, skipping insertion in model container [2020-11-12 00:14:38,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:14:38" (3/3) ... [2020-11-12 00:14:38,497 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_pso.opt.i [2020-11-12 00:14:38,515 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 00:14:38,516 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 00:14:38,520 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 00:14:38,521 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 00:14:38,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,567 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,567 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,570 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,570 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,570 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,570 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,572 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,573 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,573 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,573 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,574 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,575 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,575 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,575 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,584 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,585 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,585 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,585 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,593 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,593 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,593 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:14:38,596 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 00:14:38,608 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-12 00:14:38,631 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 00:14:38,632 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 00:14:38,632 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 00:14:38,632 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 00:14:38,632 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 00:14:38,632 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 00:14:38,632 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 00:14:38,632 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 00:14:38,645 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-12 00:14:38,648 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-12 00:14:38,651 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-12 00:14:38,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-11-12 00:14:38,696 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-11-12 00:14:38,696 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-12 00:14:38,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-11-12 00:14:38,702 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-11-12 00:14:40,313 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-11-12 00:14:40,491 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-11-12 00:14:41,719 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-12 00:14:42,027 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-12 00:14:42,141 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-12 00:14:42,396 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2020-11-12 00:14:42,484 INFO L131 LiptonReduction]: Checked pairs total: 1658 [2020-11-12 00:14:42,484 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-11-12 00:14:42,491 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-11-12 00:14:42,505 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 74 states, 72 states have (on average 2.2222222222222223) internal successors, (160), 73 states have internal predecessors, (160), 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) [2020-11-12 00:14:42,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 72 states have (on average 2.2222222222222223) internal successors, (160), 73 states have internal predecessors, (160), 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) [2020-11-12 00:14:42,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-12 00:14:42,514 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 00:14:42,515 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-12 00:14:42,515 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 00:14:42,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 00:14:42,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1339007067, now seen corresponding path program 1 times [2020-11-12 00:14:42,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 00:14:42,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706594420] [2020-11-12 00:14:42,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 00:14:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 00:14:42,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 00:14:42,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706594420] [2020-11-12 00:14:42,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 00:14:42,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-12 00:14:42,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888011880] [2020-11-12 00:14:42,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 00:14:42,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 00:14:42,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 00:14:42,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 00:14:42,766 INFO L87 Difference]: Start difference. First operand has 74 states, 72 states have (on average 2.2222222222222223) internal successors, (160), 73 states have internal predecessors, (160), 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2020-11-12 00:14:42,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 00:14:42,804 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-11-12 00:14:42,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 00:14:42,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2020-11-12 00:14:42,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 00:14:42,816 INFO L225 Difference]: With dead ends: 70 [2020-11-12 00:14:42,817 INFO L226 Difference]: Without dead ends: 54 [2020-11-12 00:14:42,818 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 00:14:42,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-12 00:14:42,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-12 00:14:42,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 2.056603773584906) internal successors, (109), 53 states have internal predecessors, (109), 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) [2020-11-12 00:14:42,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-11-12 00:14:42,860 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-11-12 00:14:42,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 00:14:42,861 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-11-12 00:14:42,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2020-11-12 00:14:42,861 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-11-12 00:14:42,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-12 00:14:42,862 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 00:14:42,862 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-12 00:14:42,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 00:14:42,862 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 00:14:42,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 00:14:42,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1441207335, now seen corresponding path program 1 times [2020-11-12 00:14:42,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 00:14:42,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148730716] [2020-11-12 00:14:42,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 00:14:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 00:14:42,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 00:14:42,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148730716] [2020-11-12 00:14:42,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 00:14:42,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-12 00:14:42,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268416670] [2020-11-12 00:14:42,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-12 00:14:42,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 00:14:42,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-12 00:14:42,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-12 00:14:42,970 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2020-11-12 00:14:43,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 00:14:43,004 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-11-12 00:14:43,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-12 00:14:43,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2020-11-12 00:14:43,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 00:14:43,007 INFO L225 Difference]: With dead ends: 60 [2020-11-12 00:14:43,007 INFO L226 Difference]: Without dead ends: 30 [2020-11-12 00:14:43,008 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-12 00:14:43,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-12 00:14:43,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-12 00:14:43,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 29 states have internal predecessors, (51), 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) [2020-11-12 00:14:43,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 51 transitions. [2020-11-12 00:14:43,018 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 51 transitions. Word has length 7 [2020-11-12 00:14:43,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 00:14:43,019 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 51 transitions. [2020-11-12 00:14:43,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2020-11-12 00:14:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 51 transitions. [2020-11-12 00:14:43,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-12 00:14:43,020 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 00:14:43,020 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 00:14:43,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 00:14:43,021 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 00:14:43,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 00:14:43,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1295819572, now seen corresponding path program 1 times [2020-11-12 00:14:43,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 00:14:43,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868475653] [2020-11-12 00:14:43,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 00:14:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 00:14:43,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 00:14:43,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868475653] [2020-11-12 00:14:43,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 00:14:43,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-12 00:14:43,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841544217] [2020-11-12 00:14:43,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-12 00:14:43,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 00:14:43,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-12 00:14:43,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-12 00:14:43,130 INFO L87 Difference]: Start difference. First operand 30 states and 51 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2020-11-12 00:14:43,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 00:14:43,145 INFO L93 Difference]: Finished difference Result 24 states and 38 transitions. [2020-11-12 00:14:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-12 00:14:43,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2020-11-12 00:14:43,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 00:14:43,146 INFO L225 Difference]: With dead ends: 24 [2020-11-12 00:14:43,146 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 00:14:43,146 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-12 00:14:43,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 00:14:43,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 00:14:43,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2020-11-12 00:14:43,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 00:14:43,147 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-11-12 00:14:43,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 00:14:43,148 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 00:14:43,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2020-11-12 00:14:43,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 00:14:43,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 00:14:43,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 00:14:43,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:14:43 BasicIcfg [2020-11-12 00:14:43,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 00:14:43,154 INFO L168 Benchmark]: Toolchain (without parser) took 6185.39 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 276.7 MB in the beginning and 219.9 MB in the end (delta: 56.8 MB). Peak memory consumption was 120.5 MB. Max. memory is 16.0 GB. [2020-11-12 00:14:43,154 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 271.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 00:14:43,155 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.84 ms. Allocated memory is still 302.0 MB. Free memory was 276.1 MB in the beginning and 246.0 MB in the end (delta: 30.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-12 00:14:43,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.35 ms. Allocated memory is still 302.0 MB. Free memory was 246.0 MB in the beginning and 244.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 00:14:43,157 INFO L168 Benchmark]: Boogie Preprocessor took 32.72 ms. Allocated memory is still 302.0 MB. Free memory was 244.0 MB in the beginning and 242.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 00:14:43,158 INFO L168 Benchmark]: RCFGBuilder took 652.46 ms. Allocated memory is still 302.0 MB. Free memory was 242.8 MB in the beginning and 266.3 MB in the end (delta: -23.5 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. [2020-11-12 00:14:43,159 INFO L168 Benchmark]: TraceAbstraction took 4663.19 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 266.3 MB in the beginning and 219.9 MB in the end (delta: 46.4 MB). Peak memory consumption was 107.3 MB. Max. memory is 16.0 GB. [2020-11-12 00:14:43,162 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 271.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 767.84 ms. Allocated memory is still 302.0 MB. Free memory was 276.1 MB in the beginning and 246.0 MB in the end (delta: 30.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.35 ms. Allocated memory is still 302.0 MB. Free memory was 246.0 MB in the beginning and 244.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.72 ms. Allocated memory is still 302.0 MB. Free memory was 244.0 MB in the beginning and 242.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 652.46 ms. Allocated memory is still 302.0 MB. Free memory was 242.8 MB in the beginning and 266.3 MB in the end (delta: -23.5 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4663.19 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 266.3 MB in the beginning and 219.9 MB in the end (delta: 46.4 MB). Peak memory consumption was 107.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 557 VarBasedMoverChecksPositive, 28 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 33 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.8s, 69 PlacesBefore, 22 PlacesAfterwards, 65 TransitionsBefore, 15 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 3 ChoiceCompositions, 66 TotalNumberOfCompositions, 1658 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 33 SDtfs, 30 SDslu, 20 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 375 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 correct! Received shutdown request...